Develop Bugs

Note 2 stuttering on nes/snes/genesis emulation

Hi guys, bit of a strange problem here - using any emulator (any of robert brogalias, as well as supergnes or animaonline), I'm getting sound and framerate stuttering at consistent intervals. It seems like something is hitting the cpu when this happens, but I don't know what might be doing it - I have "betterbatterystats" and it shows that "audioOut_2" is causing 12.8 percent of partial wakelocks, don't know if this could be related.
Power saving features are all off, to my knowledge.
I've only installed very few apps, like PowerAmp, CPU Spy, titanium backup and a couple others. Rebooting the phone makes no difference, removing the SD card after copying roms to the internal memory made no difference, stopping the media scan service did nothing, I even flashed roms to Clean Rom 3.5 and it didn't change. I wiped dalvik and the other cache beforehand.
Any ideas? My tegra 2 tablet can run these emulators flawlessly at 60 fps all day!

f3tf said:
Hi guys, bit of a strange problem here - using any emulator (any of robert brogalias, as well as supergnes or animaonline), I'm getting sound and framerate stuttering at consistent intervals. It seems like something is hitting the cpu when this happens, but I don't know what might be doing it - I have "betterbatterystats" and it shows that "audioOut_2" is causing 12.8 percent of partial wakelocks, don't know if this could be related.
Power saving features are all off, to my knowledge.
I've only installed very few apps, like PowerAmp, CPU Spy, titanium backup and a couple others. Rebooting the phone makes no difference, removing the SD card after copying roms to the internal memory made no difference, stopping the media scan service did nothing, I even flashed roms to Clean Rom 3.5 and it didn't change. I wiped dalvik and the other cache beforehand.
Any ideas? My tegra 2 tablet can run these emulators flawlessly at 60 fps all day!
Click to expand...
Click to collapse
You didn't make any under clock profiles did you? And is there a setting to change emulator settings back to default? Perhaps you changed something that made it go whack.
Sent from my GT-N7100

no problem here with fpse
i love to play Crash Bandicoot :laugh:

@rbiter said:
You didn't make any under clock profiles did you? And is there a setting to change emulator settings back to default? Perhaps you changed something that made it go whack.
Sent from my GT-N7100
Click to expand...
Click to collapse
Haven't changed any clocks, nope. Emulator settings are default - changing frameskip to 0 makes the sound lag even worse, and allowing frameskip creates big jumps every 3/4 of a second or so. Happens regardless of the emulator used.

Forcing CPU to 1600mhz constant also has no effect.

Governor default or performance? Can't think of much else besides power saving mode but it should run fine on that too.
Sent from my GT-N7100

Doesn't seem to matter on performance or default. I'm still running the stock kernel, think I should overclock? I really shouldn't need to though when a stock tegra 2 can handle it with 0 frameskip, sound quality on max... even NES is stuttering.
I did a complete restore, no change.

f3tf said:
Doesn't seem to matter on performance or default. I'm still running the stock kernel, think I should overclock? I really shouldn't need to though when a stock tegra 2 can handle it with 0 frameskip, sound quality on max... even NES is stuttering.
I did a complete restore, no change.
Click to expand...
Click to collapse
No need to over clock. The emulators have run fine on my older hardware under clocked just fine. The only thing it could be is a setting jacked up inside the emulator. Nintendo and super Nintendo run easily on ARM chip sets. Fpse and n64 would give it a run for it's money though. You sure you don't have something in the background hogging up horsepower?
Sent from my GT-N7100

No problem with epsxe here smooth as butter stock 4.1.2. It's most likely the rom you're using.

Stock or Clean Rom has the same issue.
epsxe is a different story, I can run that just fine. My benchmarks are pretty standard for quadrant, I'm really out of ideas - maybe the refresh rate of the phone is slightly higher or lower than the emulator is trying to run at, causing either frame skipping or sound jumps? Any other users with an eye for framerate here noticed minor frame jumping in, say, sonic 1, 2, or 3 on MD.emu? I bet it's there, but then if you turn frameskip to 0 (like I would on my tf101) the sound goes to hell instead.

I'm using Snes9x EX and AndroGens (as well as Fpse) and don't have any of the problems you describe. Maybe you should give those a shot, and if you get the problem with those too, you might have a hardware issue?
Sent from my GT-N7105 using xda app-developers app

Snes9x EX gives me the issue as well. Play mario world and run as fast as you can on level ground left and right a few times, see if the image has some slight jumps in it. Lots of people wouldn't even notice this.
Otherwise, turn frameskipping to 0. Does the sound start having issues? If it does, you have the same problem as me.
Reading around, I've found that the Note 2 apparently runs at a 58 hz refresh rate, where most everything else (including the emus) expect 60, causing the video or audio to have issues (you can have one or the other, but not both). I'm running the stock kernel, if you're running perseus it might be ok... which kernel are you running?

f3tf said:
Snes9x EX gives me the issue as well. Play mario world and run as fast as you can on level ground left and right a few times, see if the image has some slight jumps in it. Lots of people wouldn't even notice this.
Otherwise, turn frameskipping to 0. Does the sound start having issues? If it does, you have the same problem as me.
Reading around, I've found that the Note 2 apparently runs at a 58 hz refresh rate, where most everything else (including the emus) expect 60, causing the video or audio to have issues (you can have one or the other, but not both). I'm running the stock kernel, if you're running perseus it might be ok... which kernel are you running?
Click to expand...
Click to collapse
Oh, youre right, it does this for me too. It's really barely noticeable though, I hadn't noticed before now. I'm also on the stock kernel.
What did you mean by sound issues? Turning frameskip off maybe makes the sound a tiny biy faster at some points than it should be, but that too is barely noticeable and could just be my imagination.
But you're right, theres definitely an issue there, and I do wonder if you're right about the refresh rate.
Sent from my GT-N7105

Yeah I tried the perseus kernel, no change, sadly.
For sound issues, I get skips and stutters every couple of seconds in MD.emu, NES.emu, snes9x ex, SuperGNES, Animaonline SNES, and presumably all the others which require a tight synchronization of audio and video. Doesn't seem to be overly noticeable on epsxe, but then I haven't played any games which run at a tight 60 FPS on that one, either. Official games have no problems.

Running 1800 mhz makes no difference, either.
I've emailed Robert Broglia about the issue, I'll update if he replies - anyone else, let me know if you find a fix!

Received a reply from Robert (damn that guy is a machine), pasta'd below
***************
Hi, thanks for the heads up on the Galaxy Note 2, not sure why all these manufacturers are using screens with such odd refresh rates. For example, the Kindle Fire is 53Hz and the Xperia Play is 62Hz. Luckily the Nexus 7 I just picked up has a perfect 60Hz refresh rate so 0 frameskip works well on it.
In the next update I'm switching over to a more precise method for getting the device's clock so I wonder if it might help space the frames out a bit more evenly on your device. The best solution will probably be to use frameskip 0 but adjust the input audio frequency to speed-up/slow-down the audio to match the refresh rate, so I'll look into adding this for a future update.

f3tf said:
Received a reply from Robert (damn that guy is a machine), pasta'd below
***************
Hi, thanks for the heads up on the Galaxy Note 2, not sure why all these manufacturers are using screens with such odd refresh rates. For example, the Kindle Fire is 53Hz and the Xperia Play is 62Hz. Luckily the Nexus 7 I just picked up has a perfect 60Hz refresh rate so 0 frameskip works well on it.
In the next update I'm switching over to a more precise method for getting the device's clock so I wonder if it might help space the frames out a bit more evenly on your device. The best solution will probably be to use frameskip 0 but adjust the input audio frequency to speed-up/slow-down the audio to match the refresh rate, so I'll look into adding this for a future update.
Click to expand...
Click to collapse
Interesting. I wonder if it's worth me emailing the devs of the emulators I use.
Sent from my GT-N7105

That's very interesting that our quad-core 1,6Ghz with 2 GB ram struggles to emulate the SNES
CPU: Custom 65C816 at 3.58 MHz
RAM: 128 Kb
Max Colors on Screen: 256
Max Sprites: 128, 32 per scanline
Sound Channels: 8 ADPCM
Sound Memory: 64 Kb
That's a challenge

victorator said:
That's very interesting that our quad-core 1,6Ghz with 2 GB ram struggles to emulate the SNES
CPU: Custom 65C816 at 3.58 MHz
RAM: 128 Kb
Max Colors on Screen: 256
Max Sprites: 128, 32 per scanline
Sound Channels: 8 ADPCM
Sound Memory: 64 Kb
That's a challenge
Click to expand...
Click to collapse
It's actually not hardware power that we're lacking - we could probably emulate snes at fullspeed with 400 mhz on a single core if the emu was very well coded, and obviously we have tons more power than that. It's a function of how the emulator draws the screen and plays the sound - almost every device runs at 60hz, so every application expects the maximum speed to be 60 FPS, but the note 2 is actually 58 hz. This creates a (much larger than you'd expect) jump in the fluidity of the emulator when running with frameskip set to auto, and it creates an annoying audio jump/skip if frameskip is turned off.
In this situation, you can have perfect video or audio, but not both. One workaround is to slow down the audio to match the 58 frames instead of the 60.
If you use supergnes, you may as well email him because it happens in that emu too. Snex9x EX is way better than supergnes, though.

I can confirm the same thing is happening for my Galaxy Note II, although mine is the US Sprint CDMA/LTE variant. It also has a refresh rate of 58.002 Mhz and I use nearly all of Robert Broglia's emulators. On this device, it's either sound regularly skips with frameskip set to 0, or (nearly) perfect audio with stuttering video when frameskip is set to Auto.
This device is a beast, so this shouldn't be happening at all. :-/

How to play Half life on the Samsung Galaxy Note 2

Half Life 1 can now be fully played on Android with the use of the DosBox Turbo App. Here you will learn how to run the game and watch some in-depth, low fps gameplay(1-10) with my Galaxy Note 2. To see the step by step creation guide head over to the LSGameChannel and Learn how to make this fun PC game an Android port. Big thank you to the LSGameChannel for making the video guide.
[Video] How to play Half life on the Samsung Galaxy Note 2
Click Here to watch the LSGameChannle Video "How to run Half-Life on Android (DosBox Turbo)"
DosBox Turbo By:Fishstix
https://play.google....ix.dosbox&hl=en
Recommended System Requirements:
CPU Quad-Core 1.6+ or Dual-core 1.5+GHz, equivalent or better.
GPU Adreno 220, Nvidia Tegra2/3, equivalent or better.
1GB, 512. My Config asks for a min or 256MB & shouldn't be run on a device with less than this.
8GB disk space
1)Install DosBox Turbo. Go into Config/DosBoxSettings/ and make sure Manual mode is selected. You will need to restart the app for it to take effect.
2)Download and extrat the Half Life for Android folder.
3)Copy and paste the two files (HL.img & dosbox.conf) into the internal memory or sdcard on your device.
4)Start DosBox Turbo and enjoy Half Life.
Notes:
-You can enable GPU Rendering by go to settings/Screen and Rotation Settings/GPU Rendering(Check)
-You can improve the scale quality by going to settings/Screen and Rotation wettings/Scale Quality/HQ Scale(Slower)
-Galaxy Notes users may want to disable "Power Saving" mode to improve performance.
How to run Fallout 1 & 2 on Android with Sound, Patches & Mods Video+Guide:
[media]http://youtu.be/hYTTrHbQcBo[/media]
How to run Fallout 1 & 2 on Android with Sound, Patches & Mods Video+Guide Thread @ XDA:
CPU Master (free) Overclocking App:
https://play.google....asterFree&hl=en

Sweeeeet! Using your guide, I got it working on my Nexus 7. I did make one change, I set cycles = max and that seems to have make the audio much much better, the tradeoff being that the framerate is a bit slower.

GPU Rendering
gururise said:
Sweeeeet! Using your guide, I got it working on my Nexus 7. I did make one change, I set cycles = max and that seems to have make the audio much much better, the tradeoff being that the framerate is a bit slower.
Click to expand...
Click to collapse
Hey, glad you got it working! The auto setting will give you the best sound quality but will cost you some performance.
Try doing this
-You can enable GPU Rendering by go to settings/Screen and Rotation Settings/GPU Rendering(Check)

RolandDeschain79 said:
Hey, glad you got it working! The auto setting will give you the best sound quality but will cost you some performance.
Try doing this
-You can enable GPU Rendering by go to settings/Screen and Rotation Settings/GPU Rendering(Check)
Click to expand...
Click to collapse
+1:good:

+1 thanks

Half-Life on Samsung Galaxy Note 2 N7100 with Stock Rooted 4.1.2 Firmware
Good work, but this barely passes for even mildly playable. Why? 1-10 fps is nothing but a big pile of steaming bs. I mean, why waste time on this crap when you can play better native games.
Also, I think we should all be thankful to the id software, because if they had not released their game engine as free-source, the guy called n0n3m or something like that could have never developed the DIII4A app. Its fantastic, I got a rock steady 25-30 fps without fail. Also, I played Quake 1,2,and 3 along with RTCW(Return to Castle Wolfenstien) with HD enabled 1080p screen size without problems.
As far as HL is concerned, this game cannot be enjoyed at the framerate the DOSbox turbo is giving. Quite frankly,its pathetic and one should not even try to waste time as I did, because the game is a classic and can be only be enjoyed with full audio. Oh, and did I forget to mention the fact that there is no audio in the gameplay?
My Verdict: This project has a rock solid future as just being able to even get to the in-game screen was like drinking the sweet morning dew from the leaf blades of lemon grass, but quite frankly, it has a long way to go to even come under the category of playable.
: TECHNICAL CONCLUSION :
1) PLAYABLE : Yes, goes in game and is playable as long as you dont mind the bs framerate.
2) FRAME RATE : 1 -10 on a QUAD-CORE PROCESSOR WITH QUAD-CORE GPU
3) AUDIO : No
4) GLITCHES : Yes, Multiple, with wierd graphics here and there.
5) WORTH TRYING : Hell yeah, if you are a dev and wanna contribute to make it better, or just a casual tester or a user. Definitely worth a shot.

Wow...this community is great. I swear...people are blowing me away with these kind of mods. Good stuff sir!

HELP!!!!
This worked for the first time but after i tried to load it again it said has performed an illegal operation and must be shutdown!
I tried everything but it wont boot
HELP

Button press input lag for a few hours a day

Does anyone else get input lag (that lasts for a few minutes to hours) each day?
Every day (most of the time at around the same time) I'll get horrible input lag that will last from a few minutes to hours that will make the button presses on the remote take 3+ seconds just to register and execute on the Fire TV.
I sideloaded an app to check the CPU usage and it doesn't seem like there is any major CPU usage when I'm experiencing input lag.
This is a very annoying problem with my Fire TV and I'm not sure if other people experience the same problem.

If you have root access,you can use Trickster Mod after installing busybox to increase GPU performance by setting the Govern to performance.
This will partially overclock it to always run 400Mhz instead of going down to lower values which causes inconvenient lags.
I managed to get extremely fast performance after enough consecutive hours of on-time.
You could also get Kernel Tuner to make sure all four CPU cores are enabled and at the proper .384-1.7 settings.
My CPU0 was strangely disabled with the maximum clock on zero but I enabled the core by sliding it to 1.7 where it should actually be.
There is some hidden buttons on the main screen for turning CPU1,2,and 3 on/off you can find with the arrow keys.
You can also set your color bit depth to 32bit or 16bit while 24bit is the default for some reason.
Mine runs perfectly fine on 32bit and it appears to look much sharper.
Why is the default set to 24bit when 32bit works fine and looks better?

retroben said:
If you have root access,you can use Trickster Mod after installing busybox to increase GPU performance by setting the Govern to performance.
This will partially overclock it to always run 400Mhz instead of going down to lower values which causes inconvenient lags.
I managed to get extremely fast performance after enough consecutive hours of on-time.
You could also get Kernel Tuner to make sure all four CPU cores are enabled and at the proper .384-1.7 settings.
My CPU0 was strangely disabled with the maximum clock on zero but I enabled the core by sliding it to 1.7 where it should actually be.
There is some hidden buttons on the main screen for turning CPU1,2,and 3 on/off you can find with the arrow keys.
You can also set your color bit depth to 32bit or 16bit while 24bit is the default for some reason.
Mine runs perfectly fine on 32bit and it appears to look much sharper.
Why is the default set to 24bit when 32bit works fine and looks better?
Click to expand...
Click to collapse
Won't this cause the FTV to overheat? I'm thinking about doing this myself, but wouldn't want to cause any premature damage for a slight increase in performance.

The GPU is not far from max when set to normal mode.
It would usually stick around 320Mhz while occasionally going up to 400Mhz.
The heat has not been much different with performance mode keeping the GPU at 400Mhz.
Don't mess with the Quad-Core CPU modification,because that is the main thing that might overheat you.
I keep mine completely on default apart from enabling that one strangely disabled CPU core.
Out of 212F possible degrees,Trickster Mod's Temperature Info reads out 120F right now after quite a few hours of usage while the "battery" says 86F.

retroben said:
The GPU is not far from max when set to normal mode.
It would usually stick around 320Mhz while occasionally going up to 400Mhz.
The heat has not been much different with performance mode keeping the GPU at 400Mhz.
Don't mess with the Quad-Core CPU modification,because that is the main thing that might overheat you.
I keep mine completely on default apart from enabling that one strangely disabled CPU core.
Out of 212F possible degrees,Trickster Mod's Temperature Info reads out 120F right now after quite a few hours of usage while the "battery" says 86F.
Click to expand...
Click to collapse
Ok thanks I'll give it a try.

I also recently acquired two nice apps that use root to customize settings for a major performance boost in general and with "touch" related performance as well.
I have noticed a smoother touch scroll in browsers,faster menus,and app loading speeds.
The two apps are called Performance Booster and Digitizer Booster.
Performance:
https://play.google.com/store/apps/details?id=com.gejos.android.performancebooster
Digitizer Booster (responsive touch):
https://play.google.com/store/apps/details?id=com.gejos.android.digitizerbooster
There is also some donate and pro versions of Performance Booster that allow double boost and triple boost.

retroben said:
If you have root access,you can use Trickster Mod after installing busybox to increase GPU performance by setting the Govern to performance.
This will partially overclock it to always run 400Mhz instead of going down to lower values which causes inconvenient lags.
I managed to get extremely fast performance after enough consecutive hours of on-time.
You could also get Kernel Tuner to make sure all four CPU cores are enabled and at the proper .384-1.7 settings.
My CPU0 was strangely disabled with the maximum clock on zero but I enabled the core by sliding it to 1.7 where it should actually be.
There is some hidden buttons on the main screen for turning CPU1,2,and 3 on/off you can find with the arrow keys.
You can also set your color bit depth to 32bit or 16bit while 24bit is the default for some reason.
Mine runs perfectly fine on 32bit and it appears to look much sharper.
Why is the default set to 24bit when 32bit works fine and looks better?
Click to expand...
Click to collapse
Hey Retroben,
Can you do a posting with all your tips in the forum? your tips have greatly helped me out. Im sure many will greatly appreciate the performance boosts you helped us get.

I got to gather my findings before I can,but I'll see what I can do.
The major speed increase with GPU Govern set to "performance" while 400Mhz is my biggest accomplishment of findings.
I will need to devise a series of steps for each of my findings,so it might take a long while.
The 32bit Color Depth does seem a lot more vibrant and crisper than 24bit.

If anyone is curious, I found out that having a controller plugged in can cause the random input lag.
Someone had mentioned that on another website so I unplugged my xbox controller from the Fire TV and I haven't had any input lag since then.

retroben said:
Performance:
https://play.google.com/store/apps/details?id=com.gejos.android.performancebooster
Digitizer Booster (responsive touch):
https://play.google.com/store/apps/details?id=com.gejos.android.digitizerbooster
There is also some donate and pro versions of Performance Booster that allow double boost and triple boost.
Click to expand...
Click to collapse
I'm curious about what these apps actually do. The dev won't say; it looks like a lot of it build.prop style tweaks but I'm not sure if it's directly editing the file or adding a loadable script someplace.
On the 24 vs 32 bit color: it's not clear to me that for a TV screen, there's an advantage to 32 bit color. There will be a performance improvement in graphics, as the GPU is calculating many fewer bits per pixel.
The 8 bit and 24 bit images in the Wikipedia article are pretty interesting to look at on a display. I'm surpised by how similar they are on my computer display at its normal 32 bit resolution:
8 bit
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
versus 24 bit
An excellent interactive comparison of bit depths is at
http://www.cambridgeincolour.com/tutorials/bit-depth.htm
IF I can extract the tv from the teenager anytime soon, like tomorrow, I'll look at that cambridge image on the set as well. On the computer, at 16 or 32 bit, the difference in appearance of the last two images in it is very subtle.

retroben said:
I got to gather my findings before I can,but I'll see what I can do.
The major speed increase with GPU Govern set to "performance" while 400Mhz is my biggest accomplishment of findings.
I will need to devise a series of steps for each of my findings,so it might take a long while.
The 32bit Color Depth does seem a lot more vibrant and crisper than 24bit.
Click to expand...
Click to collapse
I have all for cores running on Performance max thanks to Kernel Tuner and the GPU on Performance at 400 with Tweak mod and i switched to 32 bit and im running a bit slower now with FF Type Zero in PPSSPP compared to before. I think im going to switch back to 24 bit and hopefully get a bit more speed back.

THAT IS WHAT I SAID NOT TO DO!
The CPU cores all set to that height will majorly overheat your device,and might kill it.
The most you should do is use Kernel Tuner to set the minimal speeds up to something around 50% full.
I reccommend either leaving it at the default or setting it around the 500 range.
Leave the CPU Govern alone,but GPU on performance mode with Trickster Mod is fine.
The Kernel Tuner's 32bit option does not negatively effect the performance enough (if at all),so you can keep it on with no problems.
The framerate of PPSSPP is dependant on what settings are used.
I have almost everything enabled and I get fluid 60fps with DBZ Budokai Shin.
I also get a nearly stutterless fps with SRB2PSP which normally runs abysmal on the actual system.
My PPSSPP settings...
Graphics:Non buffered,frame limit unchecked with 50% alternative speed,all of performance enabled, and the two speedup hacks enabled.
System:Multithreading and I/O disabled with native 330Mhz PSP clock speed on 2000/3000 mode.
A majority of games will have visual issues (Simpsons Game 3D graphics broken [I blame Qualcomm]) while the two I have tested (DBZ Shin and the SRB2PSP homebrew/port) work nearly flawlessly at full rates.
The 50% alternative rate is really helpful for better performance,since the game still goes up to full speed.

retroben said:
THAT IS WHAT I SAID NOT TO DO!
The CPU cores all set to that height will majorly overheat your device,and might kill it.
The most you should do is use Kernel Tuner to set the minimal speeds up to something around 50% full.
I reccommend either leaving it at the default or setting it around the 500 range.
Leave the CPU Govern alone,but GPU on performance mode with Trickster Mod is fine.
The Kernel Tuner's 32bit option does not negatively effect the performance enough (if at all),so you can keep it on with no problems.
The framerate of PPSSPP is dependant on what settings are used.
I have almost everything enabled and I get fluid 60fps with DBZ Budokai Shin.
I also get a nearly stutterless fps with SRB2PSP which normally runs abysmal on the actual system.
My PPSSPP settings...
Graphics:Non buffered,frame limit unchecked with 50% alternative speed,all of performance enabled, and the two speedup hacks enabled.
System:Multithreading and I/O disabled with native 330Mhz PSP clock speed on 2000/3000 mode.
A majority of games will have visual issues (Simpsons Game 3D graphics broken [I blame Qualcomm]) while the two I have tested (DBZ Shin and the SRB2PSP homebrew/port) work nearly flawlessly at full rates.
The 50% alternative rate is really helpful for better performance,since the game still goes up to full speed.
Click to expand...
Click to collapse
Yeah i just did performance govern for a temp performance test, i get the same speeds on ondemand just fine. but i'll try turning off multithreading and I/O and test it again with the other tweaks you said for PPSSPP.

For what its worth, I noticed the lag immediately following updating to the latest fw. On the original fw the ftv felt so fast and snappy and now is feelz slow and laggy.

It must be related to new bloatware like the kiddy mode and music management.
If you press alt+tab on a keyboard to view recent apps,the media options like apps games videos and photos will be listed,which means they run every time you pass the related options.
Root users need not worry,because rbox will have the homescreen options mod for removing the options soon.
I want to wittle it down to search,home,and settings so I can access things much faster.

[Q] CM12 Framerate - kernel or rom?

I know that LG implemented a dynamic framerate to help save battery. I was wondering how is the global framerate of cm12 decided? is it baked into the kernel or the system? if so is there any boot script that determines this sort of thing?
If possible id want to experiment with different framerates (above 30 and below 60) and see the effect on battery. - ive already dropped my phone down to simulate 1080p and take some stress off the GPU/CPU (reduces a lot of lag)
If i could drop framerate to 45 or so it should help save some more battery.
Maybe in the future if any of this works we can create our own dynamic framerate (or maybe can be integrated into xposed framework) for saving battery etc. 30fps may be choppy at times but something like 45fps should only be noticable on really fast animations that cover a large portion of the screen.

LOGMD said:
I know that LG implemented a dynamic framerate to help save battery. I was wondering how is the global framerate of cm12 decided? is it baked into the kernel or the system? if so is there any boot script that determines this sort of thing?
If possible id want to experiment with different framerates (above 30 and below 60) and see the effect on battery. - ive already dropped my phone down to simulate 1080p and take some stress off the GPU/CPU (reduces a lot of lag)
If i could drop framerate to 45 or so it should help save some more battery.
Maybe in the future if any of this works we can create our own dynamic framerate (or maybe can be integrated into xposed framework) for saving battery etc. 30fps may be choppy at times but something like 45fps should only be noticable on really fast animations that cover a large portion of the screen.
Click to expand...
Click to collapse
This would be best posted in the Cyanogenmod 12 Official Forum Thread for LG G3 where CM12 developers frequent, since most of us here are rookies or have little to no experience at android programming

ZUK supports 4KHDR @ 60fps?

Why is it that despite of having same configuration as OnePlus3, ZUK can't play 4KHDR @60fps as smooth as OP3? Though it can, after some tweaks, but not as efficiently & smooth as OP3(unrooted). I used same Version of MXPlayer and same file for comparison.
I tried all custom kernels available (Heliox,Jaguar,Darkmoon) and Latest versions of major ROMs(RR,AEX,ViperOS). And still didn't match the playback quality of OP3.
Please tell me if there are more kernels or ROMs yet to be tried, which can bring substantial step-up in performance, or which will just Play 4KHDR @ 60fps.
Overall, the User Experience is super-smooth but
this small thing is eating my brain :crying:

d3vyarth said:
Why is it that despite of having same configuration as OnePlus3, ZUK can't play 4KHDR @60fps as smooth as OP3? Though it can, after some tweaks, but not as efficiently & smooth as OP3(unrooted). I used same Version of MXPlayer and same file for comparison.
I tried all custom kernels available (Heliox,Jaguar,Darkmoon) and Latest versions of major ROMs(RR,AEX,ViperOS). And still didn't match the playback quality of OP3.
Please tell me if there are more kernels or ROMs yet to be tried, which can bring substantial step-up in performance, or which will just Play 4KHDR @ 60fps.
Overall, the User Experience is super-smooth but
this small thing is eating my brain :crying:
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First of all, You are comparing "THE BEST" SD820 phone with probably the 3rd or 4th best SD820 phone (antutu wise). Secondly, even on the OP3, why would you choose to play 60fps 4K videos that too HDR ones?! That's ridiculous for anyone. I'm hoping the logical explanation to why you're doing this is to kinda benchmark the phone. But even then a lot of SD653 and SD810 phones can breeze through this benchmark easily. It's even more ridiculous that you've tried almost all roms and kernel combos just for a luxury video playback.
Anyways coming to the point, I tried the Sony 4K 60fps HDR Swordsmith video on my Z2+ (AEX4.6 Official with HelioX 3.18.80) via MX with HW (not plus) decocer and the video was running smooth AF. Infact, compared to playback my friend's OP3 running OxyOS 5.0, my Z2+ had zero hiccups throughout the video while the OP3 had 2 or 3 towards the middle. The interesting thing is that I achieved these results while running CPU underclocked to 1996 & 1401. But technically speaking that shouldn't be a problem in the video playback coz HW decoder runs exclusively on the GPU. Concluding my point, don't watch ridiculously high quality videos on phone and don't change roms and kernels to achieve desired playback, just adjust and optimize them.

Incrovantilist said:
First of all, You are comparing "THE BEST" SD820 phone with probably the 3rd or 4th best SD820 phone (antutu wise). Secondly, even on the OP3, why would you choose to play 60fps 4K videos that too HDR ones?! That's ridiculous for anyone. I'm hoping the logical explanation to why you're doing this is to kinda benchmark the phone. But even then a lot of SD653 and SD810 phones can breeze through this benchmark easily. It's even more ridiculous that you've tried almost all roms and kernel combos just for a luxury video playback.
Anyways coming to the point, I tried the Sony 4K 60fps HDR Swordsmith video on my Z2+ (AEX4.6 Official with HelioX 3.18.80) via MX with HW (not plus) decocer and the video was running smooth AF. Infact, compared to playback my friend's OP3 running OxyOS 5.0, my Z2+ had zero hiccups throughout the video while the OP3 had 2 or 3 towards the middle. The interesting thing is that I achieved these results while running CPU underclocked to 1996 & 1401. But technically speaking that shouldn't be a problem in the video playback coz HW decoder runs exclusively on the GPU. Concluding my point, don't watch ridiculously high quality videos on phone and don't change roms and kernels to achieve desired playback, just adjust and optimize them.
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My point on playing the best video quality I have, bcz ZUK can, why not. I tried LG Cymatic Jazz HDR to test the playback(details attached).
Back when I had ZUI, it could not play the video at 60 fps. But when I flashed first RR, I was surprised by the result. In MX Player Pro with HW+, it could play super smooth with absolute 0 lag.
Then came updates and further more I flashed many ROMs but never got that playback. Changing kernels didn't help. And now I've same ROM and kernel as you do, because you know.
The fact that you can play 4KHDR @ 60fps, may be bcz ur video isn't having 10 bit color depth. Please attach your video details, I wanna see. If our videos are of same quality, then I may be having some other issue.
Its strange however, you're playing 4KHDR on HW.
Also, do you have Substratum theme or Xposed modules installed? Just curious if these affect performance in any way.

d3vyarth said:
The fact that you can play 4KHDR @ 60fps, may be bcz ur video isn't having 10 bit color depth. Please attach your video details, I wanna see. If our videos are of same quality, then I may be having some other issue.
Its strange however, you're playing 4KHDR on HW.
Also, do you have Substratum theme or Xposed modules installed? Just curious if these affect performance in any way.
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No Substratum No Xposed. And the video I tried has same video specs as yours (attached).

Incrovantilist said:
No Substratum No Xposed. And the video I tried has same video specs as yours (attached).
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Is it possible that Xposed and Substratum are somewhere causing pain to the system?
Also, I once changed some screen values through Kernel auditor and tried to undo that. I don't know if they're default now, I'm attaching SS just tell me if they're same. I'll try uninstalling Substratum and Xposed and keep system as Lite as possible and then check.
Thanks for your attention and help

d3vyarth said:
Is it possible that Xposed and Substratum are somewhere causing pain to the system?
Also, I once changed some screen values through Kernel auditor and tried to undo that. I don't know if they're default now, I'm attaching SS just tell me if they're same. I'll try uninstalling Substratum and Xposed and keep system as Lite as possible and then check.
Thanks for your attention and help
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Substratum can have some slowing effect on GPU due to its theme engine but that'll be possibly unnoticeable in a SD820. Xposed should be harmless (afaik with my previous phones) unless you are running GPU affecting modules. I don't use substratum because I was perfectly happy with CM theme engine and now that it's gone, I'm not so keen for a replacement. Xposed went meaningless after Lollipop & the birth of Magisk (for me atleast). And lastly about Screen values in KA, they don't have any effect on GPU unless ofcourse you're running grayscale which might actually save you some power (but might be unstable). If you want to reset the values, just uncheck apply on boot under screen settings and reboot. FYI, I ran almost all KCAL profiles I found online and "Perfection" (that's the name of the KCAL profile) for OP2 is giving the best visuals in my perspective. Try it if you want. Happy to have helped you ?✌?

Imo the zuk z2 is not as good at playback than I expected. Even 1080p60 video drop frames constantly at 2x playback speed
Also the phone dont have a hdr screen so why even try to play hdr content anyway

pipyakas said:
Imo the zuk z2 is not as good at playback than I expected. Even 1080p60 video drop frames constantly at 2x playback speed
Also the phone dont have a hdr screen so why even try to play hdr content anyway
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Playing a 60fps video at 2x speed would mean 120fps, that's out of our screen limit. For that purpose display needs 120Hz refresh rate as in New Razer phone, or some frames will get skipped(frame drops) as you noticed.
And the reason why I wanna play that, I search of playing that thing smoothly, I've learned many things. It simply gives me satisfaction.

Incrovantilist said:
Substratum can have some slowing effect on GPU due to its theme engine but that'll be possibly unnoticeable in a SD820. Xposed should be harmless (afaik with my previous phones) unless you are running GPU affecting modules. I don't use substratum because I was perfectly happy with CM theme engine and now that it's gone, I'm not so keen for a replacement. Xposed went meaningless after Lollipop & the birth of Magisk (for me atleast). And lastly about Screen values in KA, they don't have any effect on GPU unless ofcourse you're running grayscale which might actually save you some power (but might be unstable). If you want to reset the values, just uncheck apply on boot under screen settings and reboot. FYI, I ran almost all KCAL profiles I found online and "Perfection" (that's the name of the KCAL profile) for OP2 is giving the best visuals in my perspective. Try it if you want. Happy to have helped you ?✌?
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I removed Substratum and Xposed, even Shox audio mod, but result was same.
Though Performance as CPU Governor gives 100% results, but you said you've Under-Clocked ur CPU to 1996MHz, that did surprise me.
Which CPU & GPU governor do you use? Also which I/O Scheduler? I'm curious.

d3vyarth said:
I removed Substratum and Xposed, even Shox audio mod, but result was same.
Though Performance as CPU Governor gives 100% results, but you said you've Under-Clocked ur CPU to 1996MHz, that did surprise me.
Which CPU & GPU governor do you use? Also which I/O Scheduler? I'm curious.
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Fiops scheduler.
CPU Governor is Interactive. (default on HelioX)
GPU Governor is Msm-adreno-tz. (default on HelioX)

Incrovantilist said:
Fiops scheduler.
CPU Governor is Interactive. (default on HelioX)
GPU Governor is Msm-adreno-tz. (default on HelioX)
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I use same settings
I think I need to do more research on this.

Updating to Oreo smoothed everything out :fingers-crossed: