Laggy / Stuttering video - Nexus 7 (2013) Q&A

So i've had my nexus 7 (2013) for a few years now and i mostly use it for netflix and youtube and it was working find on complete stock firmware with no root or any mods then about a month ago my wife started to use it to play PubG mobile and after a few days the table started to lag alot during gameplay and even when i'm on youtube.
It would play smooth for a few seconds then the video would start to lag alot and the audio would be out of sync.
I did a factory reset, re-flash stock firmware and as of today and tried a custom rom. all with the same result. is this a sign of a hardware issue? it was working fine then all of a sudden it started to lag during video playback and gaming

Check if external cooling helps - position the back of N7 towards a fan.
If it helps, then install ElementalX kernel and adjust processor voltage and core frequency to decrease power consumption and heat production. Alternatively, you could try a hardware cooling mod.
Also check if it is internet/wifi connection related. Save a HD MP4 file on the tablet and play it directly.

Related

Graphics stuttering

After rooting and doing a hard reset my nitro is significantly faster, but I'm still experiencing stuttering on high quality YouTube videos. It doesn't occur for normal video payback, but does seem to happen using maps or graphics intensive games. The playback will slow down and then go very fast to catch up. Is this just the gpu having a hard time keeping up? Or is this a software problem that can be alleviated through either an update or a fix on my part?
Sent from my LG-P930 using xda premium
I'm experiencing this myself. I can watch vids on the desktop version of YouTube at 720p with out a problem anything but the app seems to stutter from time to time.
Sent from The Optimus LTE
What particular graphic intensive games are you having trouble running smoothly?
Dragon Fly! ran smoothly, although it gave an "Async" notice that I never saw on my Atrix 4g. Fruit Ninja had issues with lag and Minecraft would stick entirely for a few seconds, although I realize that game is in alpha.
Additionally, Google Maps will often stick when loading up traffic, satellite and other info when trying to move or zoom.
Just some thoughts, trying to see if anyone has similar experiences.

Stuttering during video playback

I often watch a movie or TV serie on my phone before sleeping, but I have noticed that the video payback is not always smooth and there are slight stutters as if the G3 doesn't have enough power to play back full HD high bitrate, particularly in Matroska formats. So whats up with this? I know the G3 is plenty powerful to be able to play without stutter, so could it be some kind of power saving feature holding the cpu performance back and causing stuttering? This is ridiculous to be happening with a flag ship phone! Any ideas on how to fix this?
I assume these are on your phone and not on your network or the web or something. Have you seen this thread?
http://forum.xda-developers.com/showthread.php?t=2796449
You could try turning off the throttling (at your own risk).
flaring afro said:
I assume these are on your phone and not on your network or the web or something. Have you seen this thread?
http://forum.xda-developers.com/showthread.php?t=2796449
You could try turning off the throttling (at your own risk).
Click to expand...
Click to collapse
I will try that and report back, the only strange thing is that my phone does not get warm at all when watching video, so I don't think its a problem with temperature, I usually watch at very low brightness.
I tried turning off the throttling features and it made no difference. I think maybe the stock video player is just not optimized well, so I am going to try VLC and see how that goes.
I'm not sure if this will be of any help, I hope VLC works for you. I use BS Player on my 2012 nexus 7 to play my 1080p bluray rips(at whatever bitrate the pirate scene rips at). I would suggest trying that one and to play with the hardware decoding options if things don't seem smooth with it.
T.R.A.N.C.E. said:
I tried turning off the throttling features and it made no difference. I think maybe the stock video player is just not optimized well, so I am going to try VLC and see how that goes.
Click to expand...
Click to collapse
You could try that. May work. The other option would be to turn off the power saving feature LG put in that limits the cpu. It likely turns down for easier frames and then has trouble with frames with more detail, since compressed video is variable like that. I'm not sure if anyone has completely disabled this though, and it may have a huge impact on battery life.

[solved] Kodi - high CPU usage and dropped frames on high quality files

EDIT: Solved by restarting the device.
When playing very large files (h264, 1.5h movie encoded into 7GB file, high profile, 1080p of course) I get high CPU usage in some scenes and dropped frames. Is that too much for Fire TV CPU? Why is CPU usage that high if Kodi uses hardware acceleration? (I tried both libstagefright and mediacodec, they seem to give the same result while software decoding is a bit worse).
Codec info shows no dropped frames, but it's visible that the video is choppy.
Cache is full (although sometimes has trouble filling up - but it doesn't seem connected and is not causing real problems).
Mb/s: usually about 10MBit/s when it happens (doesn't seem that much really).
Cpu usage: all 4 CPUs are over 90% when it happens.
Drop: close to zero, but the video is visibly choppy.
Is this normal?
From specs Fire TV should handle up to 20MBps...
PS. Anyone willing to test those files: http://jell.yfish.us/ - 20Mbps works fine for me with high CPU usage, 50Mbps is choppy like hell.
I have "dc:ff-h264" in the CodecInfo which from what I read means it's software decoding. In that case I am stunned how well it works, I thought it was surely hardware decoding since it had only slight problems.
If this is really software decoding only then the CPU in Fire TV is very powerful. My old PC wouldn't be able to handle that.
I will update this post when I find how to force hardware acceleration to work.
Magnesus said:
I have "dc:ff-h264" in the CodecInfo which from what I read means it's software decoding. In that case I am stunned how well it works, I thought it was surely hardware decoding since it had only slight problems.
If this is really software decoding only then the CPU in Fire TV is very powerful. My old PC wouldn't be able to handle that.
I will update this post when I find how to force hardware acceleration to work.
Click to expand...
Click to collapse
That is software, you need to enable hardware in the system config. It should be on by default, but I am not certain. Check under video->acceleration and be sure to enable expert settings. Decoding Method should be set to hardware. And you can play with Allow libstagefright, MediaCodec, or both.
Edit: With both enabled I just tried JellyFish @ 50mbit and it played flawlessly. I'm on Kodi and Amazon Firmware 51.1.4.0
Thanks for the JellyFish test. It sounds awesome that it works even at 50MBit.
I have hardware acceleration turned on (I tried all options there) but for some reason it doesn't work - maybe I'll switch to SPMC if I don't find a way to force it - right now I use Kodi nightlies.
PS. Restarting the device helped (at least for now). I will observe how it will behave in the future. (for now both amc-h264 and stf-h264 work) I had the device running for a few weeks before that, maybe something got locked.
Jugstah said:
Edit: With both enabled I just tried JellyFish @ 50mbit and it played flawlessly. I'm on Kodi and Amazon Firmware 51.1.4.0
Click to expand...
Click to collapse
I can confirm the same. Not rooted AFTV, Kodi official release, both hardware options enabled and latest firmware (in Germany)
Thanks. After restarting the device it works for me too. Turns out it might be good to restart it from time to time. Stupid me for not trying it right away.

Overheating when gaming

I am having a problem with the you overheating(?) and crashing the Marvel Strike Force game. It will loop the last few frames then finally return to home screen after about 20 seconds or so. The issue doesn't happen while outside of combat, and it occurs after about 10 minutes of play. It can be repeated in a shorter amount of time if already hot. How is it possible to overheat the GPU? Shouldn't there be sensors and a governor? I can confirm that this happens on multiple Pixel Cs. I don't think that this is the game's fault, but rather bad governor, sensor, or lack of cooling. I also have no problem running this game on the Nvidia Shield (aside from it not being on the Play Store for Android TV or some control issues when using a mouse), which has the same chipset.
I was having this same issue and I was searching for a solution. The one that seems to work is to enable Developer Options, then in Developer Options Turn on the option to Disable HW Overlays. This seems to have resolved that issue, however the tablet still gets super hot.
You can see the issue here:
https://productforums.google.com/forum/#!topic/nexus/uBU9ekhQASM;context-place=topicsearchin/nexus/category$3Amanaging-accounts-and-settings%7Csort:relevance%7Cspell:false

Lagging while playing garena free fire

Hello guys.
I had some issues with my Galaxy A70. It's lagging like hell while playing garena free fire, my device can handle the game without any issue but I Don't know why this happens.
The problem is when I play the game first 2-3 minutes game works fine but after 2-3 minutes game starts lagging phone slows down and touch sensitivity feels really heavy even game controls seems heavy I can't get fine movement because of this issue. And when I close the game phone seems so much slower it takes 10 seconds to open an app.
And while playing a game when I open the game control menu and close it, game works fine for 1-2 minutes and again it starts lagging. I hope someone here can help me with this issue. Any advice would be much appreciated
My device is not rooted and I'm on android 11 latest version.
Sorry for bad English
It called "thermal throttling".
Most smartphone will thermal throttle when the processor got too hot. Try lower your game setting. This can reduce the heat on the processor, and thus reduce the lag.
purpleish said:
It called "thermal throttling".
Most smartphone will thermal throttle when the processor got too hot. Try lower your game setting. This can reduce the heat on the processor, and thus reduce the lag.
Click to expand...
Click to collapse
I accept your solution. but I'm already playing on lower settings the game lagging also on lower settings. I've tried factory data reset and after that lag disappeared for 2 or 3 days and again after 3 days lag came back I only downloaded the game (downloaded game after factory reset)
I think it's not" thermal throttling " maybe some systems apps causing the issue? Cuz every system has high usage
I've noticed every system apps running at 100%high frequency everytime, I think that might be the issue how can I fix this issue?
GihanM.J said:
Hello guys.
I had some issues with my Galaxy A70. It's lagging like hell while playing garena free fire, my device can handle the game without any issue but I Don't know why this happens.
The problem is when I play the game first 2-3 minutes game works fine but after 2-3 minutes game starts lagging phone slows down and touch sensitivity feels really heavy even game controls seems heavy I can't get fine movement because of this issue. And when I close the game phone seems so much slower it takes 10 seconds to open an app.
And while playing a game when I open the game control menu and close it, game works fine for 1-2 minutes and again it starts lagging. I hope someone here can help me with this issue. Any advice would be much appreciated
My device is not rooted and I'm on android 11 latest version.
Sorry for bad English
Click to expand...
Click to collapse
Disable you game launcher because when your phone heats up ,it drop your screen frame rate(fps) and also decrease your volume that cause so much of lagging issue.
My suggestion was to use a custom rom to get best gaming experience
It could be anything but if it is related to hardware section u can do nothing. So first of all u need to tell us about the CPU. If it's low-end or entry level CPU u can't play anything on it.
If it's mid-range, I can help u.
I have a phone running on mediatek helio g85 powered by android 12
I face the same issue as you do because I did an update of my os. So don't update your os.
And you need to charge 100% everytime you play. You need to restart the phone or clear the cache of your game before you play. Don't use your mobile data because it will heat up your phone quickly and don't run apps in background like Avast, Facebook Messenger etc. Try to remove your back cover and hold the phone like near a fan and turn off your volume u will notice a big difference and take a break after 30 minutes to cool down and power off the phone and don't use your phone at night power it off.
Also lower your brightness I mean u can play at night time it will not heat up your phone

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