Develop Bugs

How to Change The Resolution of Your Phone / A Must if You Have Root!

So it has been mentioned throughout a lot of threads but I figured I would give a step by step and overview for the people who do not know about this or are unsure what it means and does. You must be rooted to use this.
When you compare our phones to a phone that has a qHD display you will see that the qHD display will have smaller text and will allow you to view more on the screen at one time then our WVGA screen allows. Well this is how you can even the playing field and view your phone like it was a qHD or even a 720p screen.
No more super large text like your phone was built for the blind. Also, a great feature if you use an alternate launcher you can set the screen to 5x5 or even 6x6 depending on the resolution you pick.
You will need the 2 apps from below.
First you need to install busybox. Download the app and then open it. From there it will ask you to install. Just choose okay for all the defaults and don't change anything.
https://market.android.com/details?...t=W251bGwsMSwxLDEsInN0ZXJpY3Nvbi5idXN5Ym94Il0.
Next app is lcd resolution. This is where you change the resolution.
https://market.android.com/details?...NvbS53ZW1vYnMuYW5kcm9pZC5sY2RyZXNvbHV0aW9uIl0.
There are 2 settings I use, 200 which is almost identical to qhd. qHD is 960x540 and the app allows you to set it at 960x576. You can also set it at 160 which is 720p. You can use all the settings in-between as well but I stick to these 2. You can do your own testing and see what works best for you. Make sure when testing that you do not click save on boot in case your Rom does not play nice with that resolution. I have found that 200 works almost everything but 160 can be a little more tricky, especially with certain themes. You top bar will be all blurry. A reset will put you back to stock if your Rom does not like the resolution as long as you did not click set on boot.
By doing this hack, TW launcher will not play nice so you must use an alternative. All other launchers will work. The stock dialer will also not work. You can use Go contacts, dialer one or Ex Dialer. They all look and function great. You will also need an alternate calendar and calculator app. Their are a ton to choose from.
When setting your system to 200, you might encounter an error message saying certain apps are not compatible with your phone in the market. This is because this setting while close to qhd is not exactly the same resolution so the market app does not think is is compatible as it is not a standard resolution. There are 2 ways around this. You can install the app through Amazon market as it does not know the resolution you are running on your phone or you can switch back to stock (240) then clear market data and you can download the app. Then switch back to 200. This won't happen with every app as a lot will still download when st to 200.
When running at 160 (720p) you will not have this issue in the market as this is a native resolution of Android and is recognized by every app.
I think that covers it all for now and I cannot imagine going back to a WVGA resolution as it looks sooooooo much better running at a near qhd res.
Below are 2 picks showing the difference. One is stock, one is set to 200 (qhd) and the other to 160 (720p).
Stock (240)
qHD (200)
720p (160)

I like 720p. Also, you can edit your build.prop manually and modify:
ro.sf.lcd_density=240
Does anyone know how to modify a theme to make it work with this?

bertm13 said:
I like 720p. Also, you can edit your build.prop manually and modify:
ro.sf.lcd_density=240
Does anyone know how to modify a theme to make it work with this?
Click to expand...
Click to collapse
Yeah TW theme built for 720p setting would be a keeper.

bertm13 said:
I like 720p. Also, you can edit your build.prop manually and modify:
ro.sf.lcd_density=240
Does anyone know how to modify a theme to make it work with this?
Click to expand...
Click to collapse
That works as well but the app makes it much quicker to jump between resolutions then having to edit the file.

When i changed it with LCD density the resolution changed but there was lots of space under the home screen # indicator, can you do a shot of your home screen and wallpaper to see what it looks like?

xlGmanlx said:
When i changed it with LCD density the resolution changed but there was lots of space under the home screen # indicator, can you do a shot of your home screen and wallpaper to see what it looks like?
Click to expand...
Click to collapse
you can't use Touchwiz. Need another launcher, and dialer. On some roms the camera and music apps break too if you go too low (like 720p), likely others.

I am confused, if the resolution can be improved via software, then how come the manufacturers are not doing it, what is the catch?
Sent from my SPH-D710 using Tapatalk

kingsway8605 said:
I am confused, if the resolution can be improved via software, then how come the manufacturers are not doing it, what is the catch?
Sent from my SPH-D710 using Tapatalk
Click to expand...
Click to collapse
I was going to take issue with OP's terminology but decided to not be 'that guy'...
...but here we are.
This doesn't actually change the resolution of the panel at all. You always have the same amount of pixels. Period. All this does is scale the UI. at a screen density of 160 our screen will display things at the size that a 720p screen of identical size would display them. However we lose detail on fonts whereas a 720p screen would have the same amount of detail at 160 as we would at 240....roughly. If you can live with smaller and slightly blocky fonts, go for it.
I can. It's awesome.
another confusing but interesting tidbit: LCD Pixels are made up of red green and blue subpixels. Our panel and the 720p Galaxy Nexus panel have an identical amount of subpixels. But the 720p panel achieves a higher resolution by using less subpixels for each pixel. That is why it is said to have a "pentile" display, as each pixel is composed an arrangement of 5 sub-pixels whereas we have 12 sub-pixels for each pixel. This also explains why 800x480 (WVGA) "pentile" panels look like crap...err...ahem...receive so much criticism. (See: motorola displays)
EDIT: Also, more sub-pixels per pixel means better 'sub-pixel hinting'...which is an effect used to enhance text on LCD panels. The fact that we have so many sub-pixels is probably the only reason why we can pull this off. Of course I'm assuming that android takes advantage of subpixels.

Just a reminder to everyone to nandroid before doing anything like this;
My phone won't boot after doing this. I can get into CWM, but anytime I try to reboot it gets stuck in a loop at the Sprint / 4g animation. I suspect it has something to do with busybox installation but who knows.
I did NOT have the "Set on Boot" selected in the LCD density app. I think I already had busybox support... maybe trying to install the market busybox app borked something.
Anyhoo... always do a nandroid, kids!

As Dan mentioned, it does not actually change the resolution in the true sense but for the purpose of this thread I didn't get into that detail.
I think our screens look 10x better then the Evo 3d and the photon screens when our screens are set to WVGA compared to their qhd display. This only makes it better. With a screen this large it only makes sense to shrink things down to get more on the screen.
Now the Galaxy Nexus screen, I am expecting that to be a killer screen.

Ok thanks, it was leaving like choke real estate under the page number on the screens, I actually like Touchwiz but thanks for the heads up
daneurysm said:
you can't use Touchwiz. Need another launcher, and dialer. On some roms the camera and music apps break too if you go too low (like 720p), likely others.
Click to expand...
Click to collapse

xlGmanlx said:
Ok thanks, it was leaving like choke real estate under the page number on the screens, I actually like Touchwiz but thanks for the heads up
Click to expand...
Click to collapse
I think if we could yank touchwiz off of a Galaxy Note it would do 720p (160) and if not whatever the density setting is on the Galaxy Note would make it fit perfectly.
As far as I've seen, touchwiz isn't ingrained in Android at all. I could be wrong, but, it seems like just a launcher. It's nothing like Sense which has it's big fat tentacles way up Android's ass.
...though I'm not a fan of Touchwiz, so, it really doesn't bother me at all. It's not that I hate touchwiz--I was actually astonished to find how nice it was after all of the Sense-o-philes bashed the crap out of it--I just love me some Launcher Pro and/or ADWex, depending on the time of day....though every now and then I throw on Launcher7 for giggles.

I think you are right on all accounts. I actually like its styling (well with ICS + ICS Twist) but the fact that the launcher is hardware accelerated is too much to give up
daneurysm said:
I think if we could yank touchwiz off of a Galaxy Note it would do 720p (160) and if not whatever the density setting is on the Galaxy Note would make it fit perfectly.
As far as I've seen, touchwiz isn't ingrained in Android at all. I could be wrong, but, it seems like just a launcher. It's nothing like Sense which has it's big fat tentacles way up Android's ass.
...though I'm not a fan of Touchwiz, so, it really doesn't bother me at all. It's not that I hate touchwiz--I was actually astonished to find how nice it was after all of the Sense-o-philes bashed the crap out of it--I just love me some Launcher Pro and/or ADWex, depending on the time of day....though every now and then I throw on Launcher7 for giggles.
Click to expand...
Click to collapse

xlGmanlx said:
I think you are right on all accounts. I actually like its styling (well with ICS + ICS Twist) but the fact that the launcher is hardware accelerated is too much to give up
Click to expand...
Click to collapse
Has this been verified? I stopped caring about it once I got LP/ADW up and running and it seems supernaturally smooth. Though I have to admit that the transition to the app drawer in TW is phenomenally smooth...aside from that, though, I don't really see it.
...and if only TW is hardware accelerated that must be via an API. Samsung proprietary? Considering the popularity of the SGS2 worldwide I'd imagine there would have to be another launcher that would take advantage of these hooks.
Honestly if we do, in fact, have hardware acceleration (and I believe we do) why wouldn't that be system wide? Once you go into settings you are out of the launcher and if anyone remembers Cupcake or Donut holy crap was that a painful experience for what was at the time super fast 528-800mhz phones (g1/hero and moment).

this is a great find I think, I really like the tight resolution, not too keen on having to change the type of launcher either
Has anyone noticed the jacked up notification on the notification bar?
And too bad there's not a way to make the dialer and home screens fit the screen now!
Thanks for the hint

Tried this at 160 using go launcher on starburst 1.9.8r with the beta ICS theme and it looked great except the status bar was screwed up. Do you think it might be the theme or rom?

psych2l said:
Tried this at 160 using go launcher on starburst 1.9.8r with the beta ICS theme and it looked great except the status bar was screwed up. Do you think it might be the theme or rom?
Click to expand...
Click to collapse
Was it a theme you added on to the Rom? If so, you can try it without the theme.
I am running Calk's 1.5a Rom and it works at 160 by itself, with the honey theme and the ICS mixup theme as well...

Tried it at 200 but didn't like how it screwed the dialer up and went back to 240.

tenaciousj said:
Tried it at 200 but didn't like how it screwed the dialer up and went back to 240.
Click to expand...
Click to collapse
Download GoContacts, it comes with GoDialer. Both better than stock apps and free and work at any density.
Sent from my SPH-D710 using XDA App

Anyone figure out a way to replicate a true qHD resolution? Being that it is a little off you get the apps not compatible message in the market. If you were able to replicate the exact res like 720p does you would not get that message.

[INFO][HOWTO] Official Galaxy Nexus LCD Density Modding Thread

***REQUIRES ROOT***
This thread will serve as a discussion for modifying the LCD Density of the Samsung Glaxy Nexus. Stock density is 320 dpi, and the preferred modded density is 240 dpi. Please feel free to discuss lcd density, and notify me of anything you want added to the list.
Why modify the lcd density of your phone? Simple answer: more screen real estate.
1. How to modify you lcd density
Note: You can always go back to 320 dpi at any time by following these same steps and putting 320 back in for 240!
240 dpi is the recommended modded dpi for the Galaxy Nexus. You can however set it to whatever you want. Just know that many dpi's will cause the on screen buttons to disappear, and even possibly cause the launcher to crash. In both cases you can use the adb method to restore to 240 or 320.
241 dpi is also a good number to try. It fixes the problems some apps have when running at 240 dpi. Credit goes to g33k3r. However it will cause market incompatibilities. Read #6 to fix this.
246 will fix the contact widget, and quick contact, but it will use the old style contact info which shows a large contact image above their info, not small and to the side. Credit goes to maddler.
250 dpi OR 260 dpi OR 280 dpi are also good values if you would like a smaller than stock value, but 240 is too small for you.
Method 1 (Using an app):
Download LCD Density Modder (Free) / LCD Density Modder Pro from market. Set density to 240 or 241, apply, then reboot. There are multiple different apps that can change your dpi, but this app is guaranteed to work on the Galaxy Nexus.
Method 2 (Modify a file):
Using Root File Explorer or a similar program, modify /system/build.prop file (must mount /system as r/w).
Replace:
ro.sf.lcd_density=320
With:
ro.sf.lcd_density=240
Save and reboot.
Method 3 (Using adb):
adb pull /system/build.prop C:/build.prop
In build.prop, replace:
ro.sf.lcd_density=320
With:
ro.sf.lcd_density=240
adb remount
adb push C:/build.prop /system/build.prop
Reboot phone.
2. Apps where UI is different on 240 dpi (for better or worse, ui elements have been rearranged, but none are broken)
Launcher: Home screen icons are still 4x4 and squished into the center of the screen. App drawer and Widget drawer do not fill. There is a mod that fixes this in this thread: FIX HERE
Market: Now has 2 columns instead of one when listing apps.
Gmail: Quick access icons have been romved from the bottom and placed on the top. Only first two icons are visible, other are collapsed into the drop down menu.
People: Contact info now has a two column layout: a small icon of contact on left (static) with all of the contact info as a scrolling pane on the right (no visible divider). Favorite contact icons are much smaller.
3. Apps where UI is broken, but still useable
Sports Tracker: Some interface items dont stretch to fill the screen.
ADW /ADW Ex Launcher: There is a blue line and a menu icon above the homescreen at all times.
Speedtest.net: App shows up centered on screen, not filling whole screen.
Kindle: It still works but the text is now centered in the middle and there is a large amount of paddling around it.
4. Apps where UI is completely broken
Music: App displays incorrectly at 240 dpi. Run at 241 to fix this
5. Android UI glitches
Sometimes when selecting text the menu bar on the top of the screen will have a weird blue streak across it.
Stock ICS keyboard the popup when you press a key seems like it gets clipped off a little on the bottom.
Clicking the picture of a contact either from the people app, or from a 1x1 contact widget you no longer get the quick access popup, instead it is now the person's contact picture blown up to full screen and half cut off on the right side.
6. Market apps incompatable with device (according to market)
None that I know of. Since 240 dpi is a standard dpi for most android phones, I don't envision very many apps being incompabile. If you find an app that the market say is incompatible, you can try setting your density back to 320 temporarily in order to download it.
For those with market issues on a non-standard dpi (241, 250, 260, 280 etc.), try this:
1. Boot your phone into 320 or 240 dpi mode (depending on which kind of compatibility you want).
2. Find the Market app under manage apps. Click uninstall updates, clear data, clear cache.
3. Find Market Updater under manage apps and click Disable.
4. Open Market and accept terms of service.
5. Change dpi back to 241 and reboot.
Alternatively, LCD Density Modder Pro has the ability to download and install a modded market apk to fix market compatibility issues.
Click to expand...
Click to collapse
7. Apps that crash (with possible workarounds)
Youtube: Will crash on start. Open from landscape mode! Youtube will not crash if openened in landscape mode. You can also open youtube links from the browser and other apps just fine.
8. Before and After Photos (320 dpi on left, 240 dpi on right):
***CLICK ANY SCREENSHOT TO VIEW FULL SIZE!***
Settings:
People:
Contact Info (note that the bottom bar has merged into the top bar):
Android Market:

***RESERVED***

can you provide a screenshot?
like a before/after pic.

I think this is crazy.
The stock DPI is amazing.
Get an SGSII if you want an old-school resolution or have bad eyes.
My stock DPI is absolutely beautiful...

ericshmerick said:
I think this is crazy.
The stock DPI is amazing.
Get an SGSII if you want an old-school resolution or have bad eyes.
My stock DPI is absolutely beautiful...
Click to expand...
Click to collapse
You are completely missing the point. On Android when you change the DPI, you are essentially telling android the size at which to "scale" all objects on the screen. Notice how the Galaxy Nexus has a 720p screen yet you can only fit 4x4 icons on the desktop like the Galaxy S2? Well that is because the 320 dpi is telling android to scale those things bigger. Setting it to 240 dpi will make everything smaller and give you more screen "real estate". The resolution is still 720p.
You mention having bad eyes, but when you lower the dpi you actually need GOOD eyes because everything is smaller and harder to read if you have bad eyes.
paOol said:
can you provide a screenshot?
like a before/after pic.
Click to expand...
Click to collapse
I am going to post some screenshots later today.

YouTube crashes on launch for me when set to 240 DPI. I have not performed a wipe, though I have tried wiping the settings and cache for the app.

LadFromWales85 said:
YouTube crashes on launch for me when set to 240 DPI. I have not performed a wipe, though I have tried wiping the settings and cache for the app.
Click to expand...
Click to collapse
Ah yes, thanks for reminding me. YT crashes for me as well, however if you have the widget you can click one of the videos and it will open that video. You can search for videos from there, but you cant access the home page for some reason.
EDIT: It turns out if you open youtube in landscape mode it will work!

Well thx for the Tip with the density. But however...When I start DPI Changer I get an error "Unable to read configuration file"
Any ideas?
Sent from my Galaxy Nexus using My Thumb...

Kizura said:
Well thx for the Tip with the density. But however...When I start DPI Changer I get an error "Unable to read configuration file"
Any ideas?
Sent from my Galaxy Nexus using My Thumb...
Click to expand...
Click to collapse
Are you rooted? This requires root.

for sure iam rooted...it was the first thing i have done... and i have ARHD Custom rom installed.
Sent from my Galaxy Nexus using xda premium

Kizura said:
for sure iam rooted...it was the first thing i have done... and i have ARHD Custom rom installed.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Do you have Root File Explorer? You can use the second method i listed to change the build.prop file. You can also use adb to pull the file locally, edit it, and push it back to the phone.

Oh ok then I will do it manually
I will report back soon ...I hope xD
Sent from my Galaxy Nexus
Edit: Ok this is more awesome as it was on my DHD !!!
Really thank you for that great Tip and the Help

Kizura said:
Oh ok then I will do it manually
I will report back soon ...I hope xD
Sent from my Galaxy Nexus
Edit: Ok this is more awesome as it was on my DHD !!!
Really thank you for that great Tip and the Help
Click to expand...
Click to collapse
Awesome. Make sure to check out my modified home screen launcher to get the full effect:
http://forum.xda-developers.com/showthread.php?t=1390935
Also, if you find any apps that don't display properly or something else is wrong with them (when running in 240 dpi), please post back in this thread to help inform others.

Mhh I use adb launcher... but on top of the screen is now a blue horizontal line with the three dots for options on the right side....
Will your mod take care of this? I hope you know what I mean...
Sent from my Galaxy Nexus

Kizura said:
Mhh I use adb launcher... but on top of the screen is now a blue horizontal line with the three dots for options on the right side....
Will your mod take care of this? I hope you know what I mean...
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
I have ADW Ex launcher and i see that as well. It is the default titlebar and menu system for apps in ICS. Did you experience this when in 320 dpi as well or only in 240? I haven't tested it in 320.
And no, my mod only affects the stock launcher so it will not fix your problem.

No with 320 dpi that line doesn't appear its there since I have 240 Dpi...
Tested your Launcher replacement...
Great Work
But as you said it will not fix this "line affect" in adw
Maybe in a future update in adw launcher it will be fixed.
Sent from my Galaxy Nexus

I added photos to the main post now. Click on any photo to view the original size image!

Awesome, really cool. Trying it out today to see if I like it.
Another noticed bug - if you have a contact on your home screen (single icon version), which normally pops up the quick box for the contact, this now just seems to pop up their display picture and nothing else.

I see what you mean about the contact. It also happens when in the people app and you click their picture. I added it to the first post. thanks.

I thought changing the DPI would enable the ICS for tablets UI?

LCD Density Changer?

Has anyone been able to get any density changer apps working on their Nitro HD? I've tried all of the following, and none seem to work. It's possible there is a problem with my su access, so if anyone HAS gotten any of these to work, please let me know. That at least tells me I definitely have an su problem...
DPI Changer
LCD Resolution
LCDDensity
Root Tools

Never mind; my build.prop file was set to read only.

Excuse my ignorance, but what exactly are they for? Does the density changes only the size of text or everything including graphic become bigger/smaller?

[email protected] said:
Excuse my ignorance, but what exactly are they for? Does the density changes only the size of text or everything including graphic become bigger/smaller?
Click to expand...
Click to collapse
wondering the same thing as well.

aquariuz23 said:
wondering the same thing as well.
Click to expand...
Click to collapse
For the most part, yes. Decreasing the LCD Density is like increasing your desktop's resolution. Icons and text become smaller, though apps that are written to scale to any resolution will usually appear the same.

Hmmm...I do see some issues with current density, for instance the avatars in Talk don't stretch to fit the square.
So witch tool would you suggest?

I tried DPI Changer the other and couldn't get it to work, thanks for the heads-up about the build.prop!
The Nitro also already has the "Screen Optimization" util (Settings > Display > Screen Optimization) that resizes checked apps to the Nitro's display. It helped with a few games, but some games just won't work (like Asphalt 5)...But now with the Density changer, maybe I'll give it another try.

[email protected] said:
Hmmm...I do see some issues with current density, for instance the avatars in Talk don't stretch to fit the square.
So witch tool would you suggest?
Click to expand...
Click to collapse
Actually, I'm not sure any of the tools above would work; part of the problem I am sure is that the build.prop file was not only read only, but there wasn't an entry for the LCD Density - so if the apps work by simply retrieving and editing the property, they aren't going to work. I just edited the file directly with a text editor, saved, and restarted the phone. Some of the apps would then at least report the new value, but still didn't seem to successfully update it. I quit looking because I got the density I wanted (about 270, down from the native 320).
As for compatibility with other apps, if they don't quite look correct it is because they aren't written well, and a different density changing app isn't going to do you any good. Again, it's like changing the resolution on your computer - it doesn't matter how you change your resolution - once it's set it is what it is, and apps that don't accommodate it just aren't going to look good.
Namuna said:
I tried DPI Changer the other and couldn't get it to work, thanks for the heads-up about the build.prop!
The Nitro also already has the "Screen Optimization" util (Settings > Display > Screen Optimization) that resizes checked apps to the Nitro's display. It helped with a few games, but some games just won't work (like Asphalt 5)...But now with the Density changer, maybe I'll give it another try.
Click to expand...
Click to collapse
The Screen Optimization utility only seems to address apps that are written to a specific resolution - not pixel density. In this sense, the LCD Density is actually more like changing your computer's DPI - I didn't use that analogy first because more people are more familiar with changing a desktop's resolution. The fact is that LCD screens have a set resolution, and you cannot increase or decrease that resolution through software. The Nitro's extremely high resolution (1280x720) just isn't common enough in phones (most software would see it as a tablet) to be accounted for in all apps - particularly older ones. So, the screen optimization app that is built-in will automatically stretch apps to take up the entire 1280x720 pixels, even if the app only renders (for instance) 800x480 pixels .

[Q] ROM 4.10.12 ODJDub HD Express 2.0 - Widgets and icons small

I install this rom and is really good, the only bad things is: when i put a widget, this is too small, example, the tunein radio the buttons when i press play open the app and when i press stop is like a press play. i wanna put images to explain better but i don't now how. how i can make perfect this rom with out this issue?

realmotaro said:
I install this rom and is really good, the only bad things is: when i put a widget, this is too small, example, the tunein radio the buttons when i press play open the app and when i press stop is like a press play. i wanna put images to explain better but i don't now how. how i can make perfect this rom with out this issue?
Click to expand...
Click to collapse
the ROM may have the LCD density set too low, try downloading LCD density from the market and set it at 240 which is usually the default for most phones, including the evo... play with the density set it to different levels to see if any of them change the look of things..

evol4g said:
the ROM may have the LCD density set too low, try downloading LCD density from the market and set it at 240 which is usually the default for most phones, including the evo... play with the density set it to different levels to see if any of them change the look of things..
Click to expand...
Click to collapse
Don't do that. The LCD density is already set at 240. Any widgets you use from the market are gonna be too small. This rosie was modded to fit our phones. Normally the rosie for the tablet is 160 dpi, but that will screw up the dialer and make resizing impossible. This is a known issue for the Express and widgets. My old thread was closed due to stupid red tape, it was discussed in it, but that thread was reopened, so you can search it again for info and tips. Hopefully, when I get some time, I will ask for people to post what widgets they need resized and I can fix them for you.
Hope this was helpful.

Changing your DPI Settings (No-Root)

Hi all, please see the below thread. Only sharing the info as this was posted on the Verizon N4 forum.
http://forum.xda-developers.com/note-4-verizon/general/root-want-to-modify-dpi-t2960644
Hope this helps...
As indicated below some touchwiz native apps are affected.
List of known affected applications by changing DPI settings:
S-View (for S-View covers -- slightly misaligned but functional)
Touchwiz Stock Dialer (slightly misaligned but functional -- other non-stock options exist such as Hangouts or ExDialer)
Fingerprint lockscreen (arrow pointing to finger print scanner off center)
Exchange email (stock Samsung Email)
Stock Camera App

Just FYI to get some easy download links:
http://forum.xda-developers.com/note-4-verizon/general/root-want-to-modify-dpi-t2960644
Enable USB debugging on yer phone
-> http://www.mediafire.com/download/a4hd8y0c1iakysk/Samsung-Usb-Driver-v1.5.49.0.exe
Samsung USB drivers you'll need installed
-> http://forum.xda-developers.com/showthread.php?p=48915118#post48915118
ADB / Fastboot installer
navigate to C:\adb\ and then run the command they give in the thread
adb shell wm density 540
(not confirmation will be sent but your phone should prompt you to 'allow' your computer to send adb commands to it.).
Restart phone
DPI settings are now at 540. original DPI settings are 640 BTW

imnoob55 said:
Hi all, please see the below thread. Only sharing the info as this was posted on the Verizon N4 forum.
http://forum.xda-developers.com/note-4-verizon/general/root-want-to-modify-dpi-t2960644
Hope this helps...
Click to expand...
Click to collapse
I came across that thread a few hours ago. It's pretty neat to be able to drop the density and make more use of display space (could even drop it down to 384 and make it look more like a tablet), but it has its problems. Samsung apps (Dialer, camera, S Note, S-View, etc) will lose their screen alignment and/or only cover a portion of the screen when altering the density. Finding an alternate dialer was easy enough, but I'm having trouble finding a camera app similar to stock in quality, and was unsuccessful at replacing the S-View...

redphazon said:
I came across that thread a few hours ago. It's pretty neat to be able to drop the density and make more use of display space (could even drop it down to 384 and make it look more like a tablet), but it has its problems. Samsung apps (Dialer, camera, S Note, S-View, etc) will lose their screen alignment and/or only cover a portion of the screen when altering the density. Finding an alternate dialer was easy enough, but I'm having trouble finding a camera app similar to stock in quality, and was unsuccessful at replacing the S-View...
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Yup unfortunately that is a side-effect of doing this. Only way to do it that I am aware of conventionally would be via xposed or loading in custom TW apps, both not possible. Hangout dialer works well, for this. TW stock browser is not affected. My S-Note is not affected either, too. Dialer and S-View are (not unusable, they just are not center-aligned any longer as their height/width are set on static widths rather than proportional % when Samsung set up the layout.) Maybe they'll change that in L.
BTW I use Nova for launcher and Hangouts as my dialer. I do use an s-view case, though, which is of course impacted.

imnoob55 said:
Yup unfortunately that is a side-effect of doing this. Only way to do it that I am aware of conventionally would be via xposed or loading in custom TW apps, both not possible. Hangout dialer works well, for this. TW stock browser is not affected. My S-Note is not affected either, too. Dialer and S-View are (not unusable, they just are not center-aligned any longer as their height/width are set on static widths rather than proportional % when Samsung set up the layout.) Maybe they'll change that in L.
BTW I use Nova for launcher and Hangouts as my dialer. I do use an s-view case, though, which is of course impacted.
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I'm also using Nova Launcher. I did download ExDialer at first, but I went to Hangouts Dialer instead since ExDialer has a trial period and costs money.
S Note is largely unaffected yes, but when you open the camera for copying documents, the square used for aligning the camera with the document is off-center. It doesn't seem to hurt functionality in any way, though. Oddly enough, the camera when used in S Note is fullscreen...
As far as S-View goes, I'm thinking about removing the flip cover. S-View is nice, but I'm always trying to not get smudges on the cover screen on top of the phone display, so the cover is a little bit cumbersome to me when holding it. Seeing how much better the phone looks at a lower density makes me lean even closer to just getting rid of it. That leaves me with just the camera replacement...

Exchange email is also broken... when you reply to an email, the screen font is set to eleventybillion.
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Sent with my Galaxy Note 4

Can anyone confirm if this impacts the play store? Typically changing the dpi on the whole device would prevent the play store from downloading some apps.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app

jfenton78 said:
Can anyone confirm if this impacts the play store? Typically changing the dpi on the whole device would prevent the play store from downloading some apps.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
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I haven't seen any problems with the Play Store yet, though I haven't been installing much of anything, either. The few apps I've installed so far gave me no trouble.
Also, just found out that the stock camera has no problems with accurate button detection when the phone is turned sideways for landscape rotation, though it's still not fullscreen. You have to guess where the buttons are on the screen in portrait when the density is changed.

Couple of tips:
if you get an error about the device being offline make sure you've got the current ADB installed. The link provided for the adb and fastboot didn't work for me because the file didn't install. The program is just an auto run zip file. you can open with 7-zip and just extract the adb files.
also if you get an error about the device being unauthorized you must select no action on the windows pop up and always perform this action. the phone should then get a pop up with the RSA key number and ask you to authorize. hope this helps.
540 DPI is pretty nice.

I was okay with the dialer and lockscreen, but the camera made me go back to 640. In vertical shooting mode, the touch points for all the icons, including the shutter button, is misaligned and is very annoying. What a shame as 540 looked AWESOME.

cj00ta said:
Exchange email is also broken... when you reply to an email, the screen font is set to eleventybillion.
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Sent with my Galaxy Note 4
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Thanks! Just added to the top thread under impacted apps

Does this effectively change the resolution? I'm curious if lowering the DPI would give positive improvement to high-end game performance. Can anyone shed some light here?

Conkrete said:
Does this effectively change the resolution? I'm curious if lowering the DPI would give positive improvement to high-end game performance. Can anyone shed some light here?
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It doesn't change the resolution. What it changes is the drawing size of on-screen content which is directly from the 'dpi setting' of the phone.
It's a little complicated to explain but this is how it works;
The phone's default screen density (DPI) setting 640, this is done because that's how many dots per inch of the physical screen there is (a phone of similar screen size would have a similar dpi). This value is stored in your phone's build.prop and is read by numerous applications, it might not match exactly the 'real' dpi of the screen but its normally very close to it.
By changing it lower in dpi you're instructing to applications you actually have a smaller screen size, thus to fit content (i.e words not being HUGE on a small screen) content is drawn to that dpi setting you're providing in build.prop.
Now to go into why we have certain issues when changing the dpi.
This is basically due to how the app did its layout sizing (do I base content on "actual size" of the screen-size or do I base it on "actual density" of the screen density in build.prop? Most apps, since they're targeting to be used with dozens of devices of all sorts of different sizes, will be designed where the layout of content is dependent upon dpi. A layout would be I want a rectangular box on the bottom that has height 10px and width 100%, so that effectively means the width is based on the proportion of the screen size (the OS controls this, its just a matter of scaling). This is why you once had 5 items to show now has 8 items to show in a listbox. The size of the listbox in this case would be based on actual density while the content (text etc.) inside would be based on actual size (scaling I would think is limited to a min/max actual size for text).
Samsung can get away with this on their stock apps because in their mind when they build their roms they are only going to be used on that specific device. They're starting to go away from this, however, and are starting to make their layouts more typical that of a normal application. You have somewhat less control of the layout going from actual size to actual density.
*keep in mind you can actually set parameters for both. Such as if I wanted something to be 10% in width but only up to 2.5 inches in actual size this effectively means that it will scale until it reaches 2.5" and then scale no longer.
I hope that makes sense. Resolution really doesn't have a role at all in this, you're always at the same resolution (4K) and this is handled by the lower-level kernel and GPU firmware. I don't think there's a way to change this at the app layer but than again I have really no background in android development.
*please if anything comes off as inaccurate please point out, I am from a XAML/.NET development background and linux/unix embedded systems and really I focused on back-end/databases/services and not really front-endy stuff. This is how it is handled in XAML though and I have seen android uses the same principals.

imnoob55 said:
It doesn't change the resolution. What it changes is the drawing size of on-screen content which is directly from the 'dpi setting' of the phone.
It's a little complicated to explain but this is how it works;
The phone's default screen density (DPI) setting 640, this is done because that's how many dots per inch of the physical screen there is (a phone of similar screen size would have a similar dpi). This value is stored in your phone's build.prop and is read by numerous applications, it might not match exactly the 'real' dpi of the screen but its normally very close to it.
By changing it lower in dpi you're instructing to applications you actually have a smaller screen size, thus to fit content (i.e words not being HUGE on a small screen) content is drawn to that dpi setting you're providing in build.prop.
Now to go into why we have certain issues when changing the dpi.
This is basically due to how the app did its layout sizing (do I base content on "actual size" of the screen-size or do I base it on "actual density" of the screen density in build.prop? Most apps, since they're targeting to be used with dozens of devices of all sorts of different sizes, will be designed where the layout of content is dependent upon dpi. A layout would be I want a rectangular box on the bottom that has height 10px and width 100%, so that effectively means the width is based on the proportion of the screen size (the OS controls this, its just a matter of scaling). This is why you once had 5 items to show now has 8 items to show in a listbox. The size of the listbox in this case would be based on actual density while the content (text etc.) inside would be based on actual size (scaling I would think is limited to a min/max actual size for text).
Samsung can get away with this on their stock apps because in their mind when they build their roms they are only going to be used on that specific device. They're starting to go away from this, however, and are starting to make their layouts more typical that of a normal application. You have somewhat less control of the layout going from actual size to actual density.
*keep in mind you can actually set parameters for both. Such as if I wanted something to be 10% in width but only up to 2.5 inches in actual size this effectively means that it will scale until it reaches 2.5" and then scale no longer.
I hope that makes sense. Resolution really doesn't have a role at all in this, you're always at the same resolution (4K) and this is handled by the lower-level kernel and GPU firmware. I don't think there's a way to change this at the app layer but than again I have really no background in android development.
*please if anything comes off as inaccurate please point out, I am from a XAML/.NET development background and linux/unix embedded systems and really I focused on back-end/databases/services and not really front-endy stuff. This is how it is handled in XAML though and I have seen android uses the same principals.
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Extremely helpful and great info. Possibly the best response I've received from XDA. Thank you for the info. I have found a couple root apps that claim to change resolution but I've been hoping to find a non-root alternative.