Unrestricted hdmi out - EVO 4G Q&A, Help & Troubleshooting

Has anyone made any progress on getting the hdmi out to just just display whats on the screen and bypass the drm limitations?

Either that or Composite out...for mobile use...(car audio)...but unrestricted HDMI would be SICK....

hopefully this happens...definitely donation-worthy!

Composite out from the HDMI? I guess, but the hardware is there fro HDMI. Sprint wrote their own API for it So I am guessing that Tweeking it a bit will allow for full screen display.
The Desire already does Composite output and it is full display. I don't get the DRM issue, because who cares if the home screen displays on the HDMI and the videos are pushed out the HDMI so where is the issue?

It seems like it would be relatively trivial to write an app that takes a screen shot 30 times per second and broadcasts it over the HDMI cable. I don't know if its the most elegant way to do it, but it should be worth a shot.

that would be one way to skin a cat, but damn it would make the phone slooooooowwwww

Need a thread with wishes for hardware/software tweaks.
Like higher fps and bitrate in video recording.
Better algorithm to focus camera for taking photos.
Etc.

theillustratedlife said:
It seems like it would be relatively trivial to write an app that takes a screen shot 30 times per second and broadcasts it over the HDMI cable. I don't know if its the most elegant way to do it, but it should be worth a shot.
Click to expand...
Click to collapse
I already tried that, by directly copying the framebuffer for the LCD to the HDMI framebuffer. It didn't work. It steals the frames from the display, but it refuses to output it over HDMI, probably because the HDCP (right term for HDMI DRM?) handshake hasn't been completed.

acrh2 said:
Need a thread with wishes for hardware/software tweaks.
Like higher fps and bitrate in video recording.
Better algorithm to focus camera for taking photos.
Etc.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=716547
Here's a thread dedicated to that

Geniusdog254 said:
I already tried that, by directly copying the framebuffer for the LCD to the HDMI framebuffer. It didn't work. It steals the frames from the display, but it refuses to output it over HDMI, probably because the HDCP (right term for HDMI DRM?) handshake hasn't been completed.
Click to expand...
Click to collapse
Mind sharing the code for exactly what you did? I've been looking through the code on this as well and might just provide a starting point for someone else or atleast let us see what hasn't worked so we can try a different approach. thanks

Geniusdog254 said:
I already tried that, by directly copying the framebuffer for the LCD to the HDMI framebuffer. It didn't work. It steals the frames from the display, but it refuses to output it over HDMI, probably because the HDCP (right term for HDMI DRM?) handshake hasn't been completed.
Click to expand...
Click to collapse
From what I found, the HDMI is already sharing a framebuffer with the LCD...

Cicatrize said:
From what I found, the HDMI is already sharing a framebuffer with the LCD...
Click to expand...
Click to collapse
I admit I am still learning linux but isn't the FB_BASE the base address for the memory allocated for the frame buffer? If so, they don't appear to be the same...
#define MSM_HDMI_FB_BASE 0x02B00000
#define MSM_HDMI_FB_SIZE 0x00400000
http://github.com/toastcfh/HTC-Supe...ster/arch/arm/mach-msm/board-supersonic.h#L23
#define MSM_FB_BASE 0x03B00000
#define MSM_FB_SIZE 0x00465000
http://github.com/toastcfh/HTC-Supe...ster/arch/arm/mach-msm/board-supersonic.h#L46

Cicatrize said:
From what I found, the HDMI is already sharing a framebuffer with the LCD...
Click to expand...
Click to collapse
Nope it doesn't. Look either the memory init code in board-supersonic.h to see both memory banks initiated separately or run "adb shell ls /dev/graphics" and you'll see fb0 & fb1.

u guys are nerds and i love u for it... i really hope u guys figure this out, i don't program or anything like that, but if there's a way i can help, pls don't hesitate to ask. i'm sure alot more people feel the same way. cheers n ty for ur hard work.

Sorry, what I meant was it's probably sharing the same display RAM. Too busy thinking about old school hardware framebuffers. lol

Related

[Q] MHL/HDMI screen overscan?

Just wondering how the output configures itself to display on the screen?
I have a 1080p sony LCD that its feeding to and I get the display cut off a bit on either side. The television however will not allow me to choose a pixel-to-pixel true picture display (greyed out).
thx
bpm2000 said:
Just wondering how the output configures itself to display on the screen?
I have a 1080p sony LCD that its feeding to and I get the display cut off a bit on either side. The television however will not allow me to choose a pixel-to-pixel true picture display (greyed out).
thx
Click to expand...
Click to collapse
Does your TV have compatibility for 1280x720 over HDMI?
Keep looking in the settings on your TV. Only the super cheap low end TVs do not have this setting. I have a 1080p Sony Bravia and on my TV the setting was under the Picture menu and it was not labeled overscan it was labeled picture adjustment. When you get it set right the picture will fit like a glove.
yea its a 1080p bravia, a little older but still.
Will keep looking.
Mine is a little older too but I guarantee the setting is there somewhere.
bpm2000 said:
yea its a 1080p bravia, a little older but still.
Will keep looking.
Click to expand...
Click to collapse
It's not under the picture settings, it's under the more generic settings and there'll be a section about HDMI. The option will either be labelled "Zoom", "Overscan", or something about pixel display. Set it to full and you're done.

Get slimport to output 1080p instead of 1200p?

I have a nice 1080p projector I'd love to drive with the Nexus 7 over Slimport. Performance is great, but the picture has letterboxing on the left and right due to the 16:10 aspect ratio of the tablet. Is there any way to get the Nexus 7 to output only the top 1920x1080 (ignoring the permanent soft button bar)?
beandog said:
I have a nice 1080p projector I'd love to drive with the Nexus 7 over Slimport. Performance is great, but the picture has letterboxing on the left and right due to the 16:10 aspect ratio of the tablet. Is there any way to get the Nexus 7 to output only the top 1920x1080 (ignoring the permanent soft button bar)?
Click to expand...
Click to collapse
Yes, there are ways. Unfortunately none of them's easy. One way is to change the screen resolution but that requires root. The other way is to add support for external display in a video player app. As of 4.2 app developers are able to detect and handle mutliple displays at once. So it's for instance possible to detect that external display is attached, discover what resolution it supports and output video to the external display at a native resolution. I am quite surprised that the native video player does not support that. It shoud work by default that way.
beandog said:
I have a nice 1080p projector I'd love to drive with the Nexus 7 over Slimport. Performance is great, but the picture has letterboxing on the left and right due to the 16:10 aspect ratio of the tablet. Is there any way to get the Nexus 7 to output only the top 1920x1080 (ignoring the permanent soft button bar)?
Click to expand...
Click to collapse
Could you please tell me which slimport cabel you are using? is it SP10002? I am struggling to get a perfect one

MHL Cable Help (M7SPR)

2016/2/21-
I am pleased to say that I was able to get my phone and TV out at a 1:1 while using a Bluetooth controller (PS3 Six Axis). I changed my Rom with Candy5 and had the phone set to performance on the CPU and GPU. With this change I was able to get a better input rate and the TV out rate with little to no lag. This lag is most noticeable in Minecraft at max graphics, but on low graphics, the game has minimal lag. Playing online games such as RR3, Nova 3, Modern Combat 5, etc. are playable but are not recommended due to small display lag. Single player games such as BOZ, Dead Trigger, Minecraft, Shovel Knight, etc. are very playable but have slight display lag.
To put in short:
Less graphically intense = better Display output/ FPS
Also check your TV for gaming modes/ options
Thanks to Saf98 for the tip :good:
Saf98 said:
Yh it shows there's a latency option and game mode so idk if you have that.
Click to expand...
Click to collapse
2015/10/29-
I bought a MHL cable for my phone to game on my tv but there is a noticeable amount of display lag (lag from when I push a button and it takes a while to mirror the input to the tv display but not the phone display).
I've been wondering if anyone else has had this problem before with a MHL cable of any sort and if you did, were you able to fix it and how?
This is the MHL cable I have but I didn't buy it online, this is just for reference:
http://www.cellularoutfitter.com/ht...CA&utm_medium=CSE&CA_6C15C=120153940001509368
People might ask me this so I'll answer myself:
Q: Did you see if the cable was compatible with your phone model?
A: Yeah I did, it outputs video and audio fine with no lag on the tv display. I also looked into this cable prior to buying it to see if it fully worked.
Q: What resolution is your tv and what resolution does your tv recognize from your phone?
A: 1080p both ways.
Q: Are you on a stock rom?
A: No, I'm on PAC-Rom 5.1.1. Stock also had the same issue.
Q: Have you tried changing your device's resolution to see if that eliminated the lag?
A: Funny you ask, I have but it instantly reboots and loops when I do, both on stock and custom roms. Don't know why, does this happen to you?
Q: Does the charger connected to the MHL cable supply enough juice to it?
A: Yesh it does, it's a standard 5V samsung charger (Not a quick charge one nor a usb-to-powerbrick one).
Q: Do you have a lot of apps installed on your phone?
A: No, I debloat a rom to a safe max (Removing/Disabling unnecessary apps like Live wallpapers, FM radio, stock browser, calendars, stock email, all G-Bloatware).
Q: What is you phone's average free ram amount?
A: About 1.3 Gigabytes.
Q: What are your kernel settings?
A: CPU: Smartmax with stock cpu clock
CPU Voltage: Global off-set of -50
GPU: Stock 400 mhz with Simple Gov
Wake Gestures: Full screen DTW and STW/S
Z-Ram: 1000MB
I/O Schedulers: Fiops Read-ahead at 4096kb ~4mb
Any help would be appreciated :silly:
thowersome said:
I bought a MHL cable for my phone to game on my tv but there is a noticeable amount of display lag (lag from when I push a button and it takes a while to mirror the input to the tv display but not the phone display).
I've been wondering if anyone else has had this problem before with a MHL cable of any sort and if you did, were you able to fix it and how?
This is the MHL cable I have but I didn't buy it online, this is just for reference:
http://www.cellularoutfitter.com/ht...CA&utm_medium=CSE&CA_6C15C=120153940001509368
People might ask me this so I'll answer myself:
Q: Did you see if the cable was compatible with your phone model?
A: Yeah I did, it outputs video and audio fine with no lag on the tv display. I also looked into this cable prior to buying it to see if it fully worked.
Q: What resolution is your tv and what resolution does your tv recognize from your phone?
A: 1080p both ways.
Q: Are you on a stock rom?
A: No, I'm on PAC-Rom 5.1.1. Stock also had the same issue.
Q: Have you tried changing your device's resolution to see if that eliminated the lag?
A: Funny you ask, I have but it instantly reboots and loops when I do, both on stock and custom roms. Don't know why, does this happen to you?
Q: Does the charger connected to the MHL cable supply enough juice to it?
A: Yesh it does, it's a standard 5V samsung charger (Not a quick charge one nor a usb-to-powerbrick one).
Q: Do you have a lot of apps installed on your phone?
A: No, I debloat a rom to a safe max (Removing/Disabling unnecessary apps like Live wallpapers, FM radio, stock browser, calendars, stock email, all G-Bloatware).
Q: What is you phone's average free ram amount?
A: About 1.3 Gigabytes.
Q: What are your kernel settings?
A: CPU: Smartmax with stock cpu clock
CPU Voltage: Global off-set of -50
GPU: Stock 400 mhz with Simple Gov
Wake Gestures: Full screen DTW and STW/S
Z-Ram: 1000MB
I/O Schedulers: Fiops Read-ahead at 4096kb ~4mb
Any help would be appreciated :silly:
Click to expand...
Click to collapse
Never used these before but have you got a PC monitor with Hdmi?
Saf98 said:
Never used these before but have you got a PC monitor with Hdmi?
Click to expand...
Click to collapse
Unfortunately I do not, it's a standard RGB/ VGA monitor. To my understanding, you can change the refresh rate on HDMI monitors to eliminate display lag right?
I've also tried to see if I could try to change the refresh rate on my tv but it doesn't seem that I can.
thowersome said:
Unfortunately I do not, it's a standard RGB/ VGA monitor. To my understanding, you can change the refresh rate on HDMI monitors to eliminate display lag right?
I've also tried to see if I could try to change the refresh rate on my tv but it doesn't seem that I can.
Click to expand...
Click to collapse
I'm not sure then.
Edit : it doesn't show HTC one so it may not be supported, I've seen some on yt and it works but it might just depend on the quality of the product. Isn't there any mode on the tv that you can change.
Saf98 said:
I'm not sure then.
Edit : it doesn't show HTC one so it may not be supported, I've seen some on yt and it works but it might just depend on the quality of the product. Isn't there any mode on the tv that you can change.
Click to expand...
Click to collapse
It does support it, I've had no problems with it. Video playback is 1:1 with no audio lag at all. Music playback is also 1:1 with the rare audio warble from the ROM itself but other than that it's perfect. There is a slight UI lag though but that's because the phone is outputting 1080p on two displays.
No there isn't unfortunately, I've been allover the tv menu from picture and display yet nothing was found on refresh rate or other things on quality. It's ~2-3 years old, pre-smart tv era; basic 32" Vizio led tv.
thowersome said:
It does support it, I've had no problems with it. Video playback is 1:1 with no audio lag at all. Music playback is also 1:1 with the rare audio warble from the ROM itself but other than that it's perfect. There is a slight UI lag though but that's because the phone is outputting 1080p on two displays.
No there isn't unfortunately, I've been allover the tv menu from picture and display yet nothing was found on refresh rate or other things on quality. It's ~2-3 years old, pre-smart tv era; basic 32" Vizio led tv.
Click to expand...
Click to collapse
https://youtu.be/3wUvT6tkbv8 does this help?
Saf98 said:
https://youtu.be/3wUvT6tkbv8 does this help?
Click to expand...
Click to collapse
A bit but it's more of a tutorial of how and what settings do. Also this is for a 4k Ultra HD Vizio with a different/ newer firmware than my tv and higher resolution, thanks for the suggestion though. :good:
thowersome said:
A bit but it's more of a tutorial of how and what settings do. Also this is for a 4k Ultra HD Vizio with a different/ newer firmware than my tv and higher resolution, thanks for the suggestion though. :good:
Click to expand...
Click to collapse
Yh it shows there's a latency option and game mode so idk if you have that.

Dashcam -- Joying Intel

Ok, so people have found that standard USB cameras don't work on these units. The only known working camera is actually a fully self-contained recording device, that really only uses the USB wire for power and a few pointless controls.
https://www.carjoying.com/car-acces...-for-joying-new-android-system-head-unit.html
Really, if you're going to make the camera self contained, then what the heck is the point of bothering with the hookup with the head unit to begin with? Makes no sense.
Now the reason they did this is quite obvious... in their OLDER head units, they used the complete piece of trash ROCKCHIP 3188 SoC. I'm referring, of course, to MTC units. Those units would be *completely crippled* if you tried to record video on them, since they had neither video encoder nor even video decoder hardware blocks, which means that the video processing would be done entirely on the CPU! So they sold a camera that would mask this problem by recording the video itself!
The Intel SoC's have a video CODEC, so obviously the right way to do this now is to actually record the video on the head unit, using standard file formats.
I initially theorized that they had crippled either the kernel or the camera HAL.
So last night I watched the kernel log while plugging a PROPER USB camera in, and found something very interesting;
1) The kernel detected the camera, and properly associated it with the UVC video driver!
2) It was assigned a devfs entry of /dev/video5 --- 5? FIVE?
That's interesting. Why 5? Because there are already entries of /dev/video0 through /dev/video4.
Wonder what those extra inputs correspond to? Typically, when you plug in a device like a camera, the devfs entry is created dynamically. Yes, in this case, it was! But it was created at 5 (the 6th video device). Very likely, the HAL is hardcoded to use specific inputs from 0-4. I'm not aware of any Android mechanism for manually selecting the device. So blank screen on "DVR"? Because its trying to pull video from a video device that has no video INPUT.
It is certainly worth some investigation. I wonder what those inputs correspond to. Don't suppose that they could actually have video feeds from things like BACKUP camera and VIDEO IN, that feed Android, could they? Note that some video devices can create multiple devfs entries that correspond to different modes of operation, which could explain why there are so many.
It is also possible that the FYT5009 SoM has video input option that may not even be hooked up. Depends on how the MCU board is wired up.
I also note that in the configuration options for backup camera, there is an option for it to use a USB camera.
EDIT:
Checked into the camera HAL, it has hardcoded values for /dev/video0 through /dev/video3. What this means, is that there is currently no way in hell that Android can access /dev/video5, which is where an external USB camera is attached.
THIS IS SOMETHING WE CAN WORK WITH!!!!
AOSP USB Camera HAL:
https://android.googlesource.com/platform/hardware/libhardware/+/master/modules/usbcamera
Found something more...
There is an executable at /sbin/camcap
What it is, is a butchered build of ffmpeg
Which, of course, is licensed as GPL/LGPL.
So... intentionally and knowingly violating GPL, else why would they be hiding the identity of the program!
Great findings!
I have a USB camera I'd like to use as a DVR on one of the intel headunits. I really hope this can be done/
Good news, everyone!
I have successfully captured a video from a generic uvcvideo USB camera! And even better, over a test with a duration of about 2 minutes of HD MJPEG at whatever maximum frame rate it was able to deliver, the CPU utilization never exceeded 2% of *one* core.
Now truth is that I completely bypassed Android for this test, and ran ffmpeg directly with /dev/video5. Now this actually is a great option for running dashcam, since it is low overhead, greater running stability (no worry about Android coming around and killing the process!), and very effective.
I will begin working on a utility for managing it.
I would like to be able to capture the camera's audio stream as well, mux multiple cameras into a single video file, time based auto splitting, and a subtitle track containing a coordinate / speed readout from GPS. Ffmpeg should be able to handle all of it, except interfacing with the GPS, I will need something else to come up with the data stream for that.
doitright said:
Good news, everyone!
I have successfully captured a video from a generic uvcvideo USB camera! And even better, over a test with a duration of about 2 minutes of HD MJPEG at whatever maximum frame rate it was able to deliver, the CPU utilization never exceeded 2% of *one* core.
Now truth is that I completely bypassed Android for this test, and ran ffmpeg directly with /dev/video5. Now this actually is a great option for running dashcam, since it is low overhead, greater running stability (no worry about Android coming around and killing the process!), and very effective.
I will begin working on a utility for managing it.
I would like to be able to capture the camera's audio stream as well, mux multiple cameras into a single video file, time based auto splitting, and a subtitle track containing a coordinate / speed readout from GPS. Ffmpeg should be able to handle all of it, except interfacing with the GPS, I will need something else to come up with the data stream for that.
Click to expand...
Click to collapse
Well, that's worth being an app on Play store. Keep up the gr8 work!
KamaL said:
Well, that's worth being an app on Play store. Keep up the gr8 work!
Click to expand...
Click to collapse
I have no interest or intention of touching play store.
doitright said:
I have no interest or intention of touching play store.
Click to expand...
Click to collapse
Well, that was a sort of a compliment, but I'm not surprised of your reply...
KamaL said:
Well, that was a sort of a compliment, but I'm not surprised of your reply...
Click to expand...
Click to collapse
One of the great strengths of Android is that you don't need to mess around with the "manufacturer's only authorized software source" -- as in apple. Reality is that play store is only there for people who don't have the faintest idea about how powerful their devices actually are. Apple's store is there to restrict their users' freedom.
So I've been playing with ffmpeg, and have figured out how to use it to capture any number of v4l2 video streams into a single mkv file, with unequal video configurations, and automatic time-based file splitting.
Its pretty cool what you can do.
For instance, BETTER camera does mjpeg at high resolution (say 800x600, or even higher), 30 fps. Crappy camera only does raw 320x240 at 5 fps. I can simultaneously shove BOTH of their streams into a single mkv file **WITHOUT TRANSCODING THE STREAMS***.
This makes sense because (1) you might have a bunch of leftover cameras that you want to use, (2) you probably want to go with a higher quality on the front than the back -- backwards cameras are a lot less interesting (though still useful enough to make sense to record).
In any case, this is going to be pretty nice.
I wonder if our head units have one USB port with a hub chip? Or if they have two genuine USB ports? Easy enough to find out, I just haven't bothered to look yet.
One "issue" I'm having with the CHEAP USB cameras I'm playing around with, is that I can't select framerate or quality. It would be nice to be able to tell the camera to increase the compression ratio and drop the framerate down to, say 5 fps.... since it would make the storage requirements significantly lower. Of course, I could turn on transcoding, but couldn't use the hardware codec with ffmpeg, which means it would be on the CPU. I wonder if the cameras support it? Or if its a limitation of uvcvideo (the driver)?
Great job!
What USB camera are you currently using?
This is the one I bought, thinking it was a rear view camera! Oh well....
http://www.ebay.com/itm/351843416292?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT
Claims resolution to be 728 * 582 , not sure if it's true. It would be great if I could use it for basic DVR functionality on the Intel 2GB units.
Now that @doitright is banned, is there anyone capable of continuing his work with this issue?
I'd love to use my USB camera for DVR.
I contacted Joying with this regard, and they weren't helpful at all. They keep claiming on their USB camera is supported. True nonsense.
why was he banned????
gtxaspec said:
why was he banned????
Click to expand...
Click to collapse
Read some of his posts on the forum and you'll understand.
Is anyone here capable of doing the same changes for adding support to USB DVR ??
KamaL said:
Read some of his posts on the forum and you'll understand.
Is anyone here capable of doing the same changes for adding support to USB DVR ??
Click to expand...
Click to collapse
I ve read his last 25 posts and I cant see anything that would get his account temporally disabled (XDA doesnt ban people).
typos1 said:
I ve read his last 25 posts and I cant see anything that would get him banned.
Click to expand...
Click to collapse
AFAIK Some were deleted , but it doesn't matter. Let's get back to topic
Weird, he was a helpful user, giving us full bluetooth and all. Seems counterproductive to ban a good resource, oh well....
Hilari0 said:
Weird, he was a helpful user, giving us full bluetooth and all. Seems counterproductive to ban a good resource, oh well....
Click to expand...
Click to collapse
Yep, I know. I'm trying to contact him through the official Joying forums, he was active there too, but no traces of him yet. I'm sure he could have found a solution for this issue.
I have my USB dvr cam installed in the car, waiting for a fix.
Hilari0 said:
Weird, he was a helpful user, giving us full bluetooth and all. Seems counterproductive to ban a good resource, oh well....
Click to expand...
Click to collapse
KamaL said:
Yep, I know. I'm trying to contact him through the official Joying forums, he was active there too, but no traces of him yet. I'm sure he could have found a solution for this issue.
I have my USB dvr cam installed in the car, waiting for a fix.
Click to expand...
Click to collapse
Not weird at all if he broke forum rules (which he must have to be suspended).
Unless you think that if someone is helpful then theyre allowed to break the rules ?
Great news everyone, we have a working solution for running any USB cam on the joying intel units!
I'll let you guess who is working on it. check the progress on github:
https://github.com/lbdroid/FFMpeg-DashCam
It's working pretty well for me!!
KamaL said:
I'll let you guess who is working on it.
Click to expand...
Click to collapse
Thanks to the wonderful worker(@doitright), everyone can talk, only some can and will work!!Kudos
KamaL said:
Great news everyone, we have a working solution for running any USB cam on the joying intel units!
I'll let you guess who is working on it. check the progress on github:
https://github.com/lbdroid/FFMpeg-DashCam
It's working pretty well for me!!
Click to expand...
Click to collapse
Kudo's to him! Hopefully he still read this forum.

Enable Galaxy TAB S7/S7+ 4K resolution (Using ADB)

I am unsure if this thread belongs here. Kindly let me know if it doesn't or please move it.
I was wondering if the TAB S7/S7+ would let me play YouTube videos on 4K using the native app but unfortunately it doesn't for obvious reasons using stock settings.
So I figured a way to enable this using ADB. I am unsure how much this affects the battery life since I am still testing app compatibility and power usage.
ADB Commands
1. To set 4K resolution -
adb shell wm size 2400x3840
adb shell wm density 1024 (or whatever suits your eyes, mine is 1200)
2. To reset to default -
adb shell wm size reset
adb shell wm density reset
So if anyone's interested all you have to do is -
1. Download minimal ADB and install it if you do not have ADB installed.
2. Open Command Prompt in the ADB folder by pressing Shift Key and selecting the Right Click option "Open command prompt here".
3. Run "ADB devices" without quotes and accept the prompt on your device (Your device must have USB debugging enabled, if you don't know how or have it enabled you probably shouldn't be doing this).
4. Run the above "To set 4K" commands to set the display resolution to 4k.
5. Clear the app data of Youtube and restart the device.
6. (Optional/Reset) To reset the display resolution to default, just run the 2nd set of commands.
Not sure this is actually making the screen dislay 4k.
It doesn't actually MAKE your screen 4k as the display only supports 2k. The device renders everything in 4k and then outputs it on the display just like what Retina Displays or Nvidia DSR (Dynamic Super Resolution) does.
Just in case you want to actually make sure everything is running in 4k, you can simply try running a 4k video on Youtube which otherwise you cant!
Stryker_Echo9er said:
It doesn't actually MAKE your screen 4k as the display only supports 2k. The device renders everything in 4k and then outputs it on the display just like what Retina Displays or Nvidia DSR (Dynamic Super Resolution) does.
Just in case you want to actually make sure everything is running in 4k, you can simply try running a 4k video on Youtube which otherwise you cant!
Click to expand...
Click to collapse
Right, so what's the point? The 4k video doesn't look better on a 2k screen.
Since DSR and Retina Displays already exist, I believe there are some advantages. You have to try it to believe it. The displays feel a lot sharper, edges feel smoother, fonts look amazing, overall it just looks good on the huge display of my Tab s7+.
Coming back to that I need to ask you, did you try this before asking me the POINT. Coz I feel if you would have, you wouldn't be asking me this!
Stryker_Echo9er said:
Since DSR and Retina Displays already exist, I believe there are some advantages. You have to try it to believe it. The displays feel a lot sharper, edges feel smoother, fonts look amazing, overall it just looks good on the huge display of my Tab s7+.
Coming back to that I need to ask you, did you try this before asking me the POINT. Coz I feel if you would have, you wouldn't be asking me this!
Click to expand...
Click to collapse
Yes, I did, and it looks no different. It's a 2k screen, enabling something to load a 2k screen with 4k will make no difference. Not trying to argue, just saying, it's pointless.
I accept it doesn't make any greatly significant difference but then its subjective. It was just an experiment and I wanted to try it. There are many people out there who always want to run youtube at 4k, this was simply my answer to that problem, although it has its own downside and implications.
Thanks for figuring this out! Often 4k will look better on a 2k screen than 2k on a 2k screen.
This is because pixels from youtube don't always line up perfectly to the tablet pixels and you end up with a resolution less than 2k when you have it set to 2k. When you stream at 4k from youtube, the content is delivered with smaller pixels and ends up looking better on a 2k display.
Thanks for this going to give it a try on my 7 plus.
it worked now i get the option to 2160 resolution, it does look sharper.
good work thanks very simple
Hey
When i use the command "densiti" my screen become wery BIG otherwise the "size" resolution is great
is that normal ??
There's also Newpipe to get 4K Youtube without hacking. As a bonus, it also gets rid of the ads.
Does this work on Netflix? Will the maximum resolution on netflix and prime video change to uhd?
What the Implications and Downsides to this?
bs3pro said:
Right, so what's the point? The 4k video doesn't look better on a 2k screen.
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Click to collapse
The point is higher bitrate. Youtube compresses videos so much so 4k will have a much higher bitrate than 1440p and look better.
Btw, use youtube vanced for 4k but use sparingly as it blocks ads. I wouldn't suggest using it very often because it doesn't support creators
What about on Samsung Dex or any kindof screen mirroring on external monitors? Any way to get the S7+ to send more than 1440p to an external monitor through any means?
For instance if you set the resolution to 4k with ADB, and then you mirror your display via a [email protected] usb-c / hdmi cable to your 4k screen, will the screen receive a 4k signal?
Can anyone (Stryker_Echo9er) try that?
jdoggawesomex900 said:
Btw, use youtube vanced for 4k but use sparingly as it blocks ads. I wouldn't suggest using it very often because it doesn't support creators
Click to expand...
Click to collapse
If you have unlimited data and an old device lying around (all it has to be able to do is run the official Youtube app), you can leave the video playing on that device with ads while you watch on your S7 or whatever without ads. Best of both worlds, the only extra you pay is that little bit of electricity to run the other device.
YouTube now natively supports 4K HDR.
Now you can watch high quality 4K YouTube videos on Android phones
Support for 4K HDR playback was only there for iPhone users while Android smartphone users were only able to play YouTube videos at a maximum resolution of 1440 pixels.
www.gadgetsnow.com
Twodordan said:
What about on Samsung Dex or any kindof screen mirroring on external monitors? Any way to get the S7+ to send more than 1440p to an external monitor through any means?
For instance if you set the resolution to 4k with ADB, and then you mirror your display via a [email protected] usb-c / hdmi cable to your 4k screen, will the screen receive a 4k signal?
Can anyone (Stryker_Echo9er) try that?
Click to expand...
Click to collapse
I tried doing that on my 8-series Samsung TV, unfortunately, it doesn't work on my TV via USB-C (using an HDMI Dongle) or screen mirroring. I am not sure if it would work on displays with a type-c port.
Stryker_Echo9er said:
I tried doing that on my 8-series Samsung TV, unfortunately, it doesn't work on my TV via USB-C (using an HDMI Dongle) or screen mirroring. I am not sure if it would work on displays with a type-c port.
Click to expand...
Click to collapse
Thanks for trying. But do you mean that it doesn't work at all, as in you can't use dex on your TV? Or does it mean it just doesn't do 4k?

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