Develop Bugs

[Q] App causes scrolling stutter

I have the Sprint HTC Arrive. Got it and the phone worked perfectly. Then after installing some apps, the home screen and apps menus would stutter when scrolling. So I hard reset the phone and it didn't go away. I went to Sprint and they agreed it was an issue so they replaced the phone.
With the new phone (which worked perfectly), I checked every menu after installing any new app. Everything was great until I installed POCKET RECORDER. As soon as I did that, the stutter came back. This time it's in my PEOPLE menu, pictures and web. Of course, I immediately uninstalled and hard reset. Well, the stutter is still there after that.
Anyone have any ideas on how to resolve or what it could be. It's a very annoying stutter. I am hoping I can resolve without an exchange again. Any help/comments would be appreciated.
Thanks.

I have the same problem,I own two HTC 7 PRO and one of them has the same problem - stutter when scrolling.
Either HR or Reflash do not help.

stuttering? how bad is it? and how are you scrolling?

i have an HTC HD7 and i do experience slight stutters when scrolling up and down the tiles(only noticed stutters when scrolling up and down the tiles). sometimes its scrolls smoothly and most of the time it stutters. i suspected as well that some apps make scrolling stutter yet im not that sure if there are apps that make scrolling a little laggy.
if compared with the page that shows all the apps, scrolling is much smoother than that of the start screen.
btw, i only have 24 tiles pinned on my start screen (just a run down of tiles. maybe somebody will be able to pinpoint which one is the culprit. i have settings, people, phone, messaging,xbox,zune,bible7, fs calculator, the weather channel, camera, me tile and 4 fave contacts tile, 2 email tiles, htc notes and notepad free, ie, marketplace, pictures and HTC hub)

Don't have any stutter and have pocket recorder installed. Never actually used the program though so just uninstalled as a precaution.
Sent from my Dell Streak 7 using XDA Premium App

My guess is that this is due to the use of SD memory rather than NAND. The more you write to the SD the more you will notice "lag" when the OS has to re-read certain information.
Of course, this does not explain why it still lag's after a hard-reset, so I could be all wrong. I haven't come across it on my Omnia7 though, but did notice it on an early HD7 (this was part of why it went back to the store).

it's pretty noticeable. in some areas, it almost skips.

moonshines said:
i have an HTC HD7 and i do experience slight stutters when scrolling up and down the tiles(only noticed stutters when scrolling up and down the tiles). sometimes its scrolls smoothly and most of the time it stutters. i suspected as well that some apps make scrolling stutter yet im not that sure if there are apps that make scrolling a little laggy.
if compared with the page that shows all the apps, scrolling is much smoother than that of the start screen.
btw, i only have 24 tiles pinned on my start screen (just a run down of tiles. maybe somebody will be able to pinpoint which one is the culprit. i have settings, people, phone, messaging,xbox,zune,bible7, fs calculator, the weather channel, camera, me tile and 4 fave contacts tile, 2 email tiles, htc notes and notepad free, ie, marketplace, pictures and HTC hub)
Click to expand...
Click to collapse
I dont have any of these programs installed. You may have to get it exchanged - that seems like the only fix.

emigrating said:
My guess is that this is due to the use of SD memory rather than NAND. The more you write to the SD the more you will notice "lag" when the OS has to re-read certain information.
Of course, this does not explain why it still lag's after a hard-reset, so I could be all wrong. I haven't come across it on my Omnia7 though, but did notice it on an early HD7 (this was part of why it went back to the store).
Click to expand...
Click to collapse
I thought this too, however, when I got the second phone, I had the following loaded with NO Lag:
Attentive Phone
Birdsong
Compass
Directv
Facebook
Favorites Hub
Flashlight
Flixster
Forward Contacts
Homes
HTC Youtube
Last FM
Light Sword
Netflix
Notesly free
Seymour
Shazam
Shop Savvy
Star Comm
TA Maps
Yelp
GAMES
Avatar Gadgets
Fruit Ninja
Parachute Panic
Revolution
Rise of Glory
Extras
Chicks n Vixens
Moonlander
Simon Says
Spybot
Unite
Max and the Magic
ilomilo
BUT as soon as I loaded POCKET RECORDER, it started the stutter. My guess is the Pocket Recorder writes the the SD card in such a way that it causes some read issues. So even after an uninstall, the problem is still there.

nrfitchett4 said:
Don't have any stutter and have pocket recorder installed. Never actually used the program though so just uninstalled as a precaution.
Sent from my Dell Streak 7 using XDA Premium App
Click to expand...
Click to collapse
Good plan. I would highly recommend not using that app! The stutter didn't happen until after I used the program once.

I have that problem on my HTC htd7. Makes sense if you have lotsof you sd card, but doesn't after a hard reset. I dunno do sd cards needs to be defrgmented? Could it be a hardware or software issue? Its starting to feel lke ms released wp7 way before it was ready.
Sent from my HD7 using XDA Windows Phone 7 App

Yes experienced it too. Stuttering is unbearable

nrfitchett4 said:
Don't have any stutter and have pocket recorder installed. Never actually used the program though so just uninstalled as a precaution.
Sent from my Dell Streak 7 using XDA Premium App
Click to expand...
Click to collapse
peacekeeper05 said:
Yes experienced it too. Stuttering is unbearable
Click to expand...
Click to collapse
Which phone do you have?

I have pocket recorder on my Omnia 7.
I'm pretty sure at some point in the past I have used the program.. I don't notice stuttering.
Any one else opened this program and not received lag / stuttering?

Let me address the stutter and NAND/SD Card issue.
The Lag in List Scrolling likely has absolutely nothing to do with the SD Card.
Lots of apps do not cache their data on the phone, so the issue is rarely from loading since the phone is downloading and loading that data into RAM, not to the storage. In some cases it may cache the data, but keep in mind that there are applications that actually store lots of data on the disk which do not lag when scrolling (horizontally or vertically). Stock apps do not display this, and most of them scroll (Calendar, for example, and I have a lot of stuff in mine) without any issues.
The issue I think is with the list control and how it functions.
Some people's phone may stutter, but the stuttering may be within their own personal "tolerance" limit so they don't think about it or notice. Some applications stutter a lot more than others, which leads me to believe it's a code issue.
NAND and SD Card are non-factor when an app downloads data from the internet to RAM and puts it in a list control to display on the screen. In many instances, the data those apps are loading into those lists aren't even touching the storage, nor is it even cached to storage.
Also, Windows Mobile Applications could be installed to SD Card, and even witih large lists most of those apps did not display this low level of performance... And that's running from a Class 2 SD Card on an HD2 (WM 6.5 Latest Stock ROM) with the entire application and all of its data cache installed to the SD Card.
If you can play Videos and Music off an SD Card, do you really think loading some data to display in a list control will make the phone lag? Really... Get serious about this, people...
The Storage Type is not the issue. The entire OS runs pretty good off of that SD card. There is something wrong with the list control, IMO... The Silverlight control, specifically (because I am starting to think Microsoft used more than enough Native Code in its stock applications).
A Web Browser with a large cache and caching almost every page you view scrolls flawlessly but a list in a twitter app that doesn't even cache data stutters? Seriously? It's the Storage Type's problem? Lol... No, it's not. And I've never seen any conclusive test to prove that (nor am I willing to perform my own, so take it with a grain of salt... it just makes absolutely no sense.. it's almost laughable...).
I've never experience any system-wide stuttering (I wonder if some of the SD cards are rubbish, in that case), but the list scrolling in WP7 is just unbearable. It causes ghosting and all kinds of effects on the screen that are neither bearable or ergonomic (leads to eye strain, headaches after prolonged use, etc. among other things).

I have to say I'm confused as to how an app could cause permanent problems to the phone. On a hard reset I think I am right in saying the internal storage will be completely wiped and re-written with the core OS data from the ROM?
And being ROM there is no way this can be affected without a flashing process... Unless you have some dodgy hardware/SD card and it is just a coincidence that this particular program was run when the problem appeared?

[Q] Video glitch

Hopefully the powers that be don't do a DMCA takedown on my youtube video, but I've uploaded an example of a video playback glitch that regularly occurs on my device. Does anyone else see this on their Note 10.1 2014 edition? Very annoying... SM-P600, 32GB, USA version, MK1 firmware. Not rooted.
http://youtu.be/gU6x1CLGa8E

So far, I must be in the less than 1% that have experienced this problem...

you didn't include any info on the clip. audio codec, video codec, bitrate, profile, etc. what videomplayer are you using. is the glitch repeatable at that exact frame each time?

You can be sure that when somebody else had such problems, you will already find it here in the forum. So, no, never have such an issue. Also not over the network.
And, as mad squabbles already wrote: For more we need much more information.

madsquabbles said:
you didn't include any info on the clip. audio codec, video codec, bitrate, profile, etc. what videomplayer are you using. is the glitch repeatable at that exact frame each time?
Click to expand...
Click to collapse
The movie was downloaded from Samsung Hub to the device. HD quality. The videoplayer was the only one that plays these movies (to my knowledge): The stock Samsung video player. The glitch is not repeatable at exact locations. I can go back and rewatch the same clip and it will not appear, which says to me that there is not a data corruption problem. It seems like an I/O or "interrupt" problem to me. I've run Androbench on the device and I get as good as or better than the Anandtech benchmarks for the device.
This type of glitch occurs on any kind of move I play, including those I put on the device (mp4, etc). For the ones I have put on the device manually (not through Google Play or the Hub), I've tried the following players: Dice, MX, Archos, and the stock player.
In all other respects, the device works flawlessly: no lag to speak of (except for the occasional stutter on the notifications pull-down, which seems to be the norm). It doesn't crash randomly and battery life seems normal (no less than 7-10 hours of screen on time, ~4% drain overnight. The only thing that I have that probably isn't too common is that I do have MDM software installed (MaaS360) so that I can sync with my employers Exchange servers using TouchDown.

sperho said:
The movie was downloaded from Samsung Hub to the device. HD quality. The videoplayer was the only one that plays these movies (to my knowledge): The stock Samsung video player. The glitch is not repeatable at exact locations. I can go back and rewatch the same clip and it will not appear, which says to me that there is not a data corruption problem. It seems like an I/O or "interrupt" problem to me. I've run Androbench on the device and I get as good as or better than the Anandtech benchmarks for the device.
Click to expand...
Click to collapse
Normally I would expect that you have an background process which got more attention from Android then your video player. This can be anything. Did you have this issue also after a directly after a restart?

Elim said:
Normally I would expect that you have an background process which got more attention from Android then your video player. This can be anything. Did you have this issue also after a directly after a restart?
Click to expand...
Click to collapse
Yes, I have the issue immediately after a restart.

sperho said:
The only thing that I have that probably isn't too common is that I do have MDM software installed (MaaS360) so that I can sync with my employers Exchange servers using TouchDown.
Click to expand...
Click to collapse
I just removed MaaS360 and rebooted. The glitch remains...

Factory resetting now. Will report back when I get it back online. I'll test video before installing any third party apps...

And.....it's still glitching after a factory reset.

First thing I noticed was that this scene is similar to super Mario live action movie
Second, this glitch can happen when you read from a slow SD card or can be reading and writing at same time, for example downloading from torrent or installing apps and playback movies from same location.

fantasmanegro said:
Second, this glitch can happen when you read from a slow SD card or can be reading and writing at same time, for example downloading from torrent or installing apps and playback movies from same location.
Click to expand...
Click to collapse
Indeed. However, movies are playing from the internal memory without any other significant activity going on. (no D/Ls, etc. just normal device behavior that is native to the OS) going on in the background. I also have played video in airplane mode...

fantasmanegro said:
Second, this glitch can happen when you read from a slow SD card or can be reading and writing at same time...
Click to expand...
Click to collapse
and the media scan which have issues with scanning some files. Maybe you check which processes are running in the background?

Elim said:
and the media scan which have issues with scanning some files. Maybe you check which processes are running in the background?
Click to expand...
Click to collapse
There is always *some* process running in the background... I have cleared all other applications while playing a movie, but really, should this be necessary? (Problem still remains) I've tried playing movies without any non-stock apps installed. Problem occurs. I've tried freezing as much bloatware as possible without rooting before installing third part apps. Problem occurs.
What I would like to explicitly know is this: has anyone rented a movie from Google Play, played at least 30 minutes straight while doing nothing but watching the movie, and saw any stuttering whatsoever during that 30 minutes. I can live with it if it is a suboptimal experience due to firmware (I'm on MK1, btw) if this is "normal" for this device. I could only hope that it would be fixed in a future firmware update if that was the case. However, I have a strong feeling that if I sent this in to Samsung, they'll fiddle with it for 10 minutes, see that it "seems" to be fine (except for this glitch, the device performs completely as-expected for an Android device), then it be returned to me with no action taken. I can live without this thing for a few weeks, but it will be extremely annoying if nothing is actually done about it. Given that this glitch is not reproducible on command, I fear it will be an ongoing thorn in my proverbial behind. Unfortunately, my return window has expired or else it would go back in an instant.

Used Kies to download and reinstall the MK1 firmware in case one of the OTA updates were corrupted. No joy. Still stutters. Samsung Live Chat help of no use. I expect a call or email from them telling me to send it in in the next 3-5 business days unless someone else states that they have the same tablet and sees this problem too, possibly confirming that it is a firmware/device combination issue.

Mmm this is weird, I have no problem with video playback (any supported format by this device)
I have no MK1 but MJ2 and maybe media scanner is working hard in background
Are you using external SD card and / or have many pictures?

sperho said:
And.....it's still glitching after a factory reset.
Click to expand...
Click to collapse
Try MX player if you just want to play it somehow
Sent from my GT-I9082

as far as i can remember with pc's.... if video card gets warm or hot, the screen starts to show glitches...

asifcheer said:
Try MX player if you just want to play it somehow
Sent from my GT-I9082
Click to expand...
Click to collapse
MX player shows glitches as well on movies that it can actually play. i.e., MX player doesn't play nicely with rented (digitally rights managed) movies from Google, which is the primary problem. Perhaps Android tablet users just don't rent movies all that much?

media scanner is working hard in background
Are you using external SD card and / or have many pictures?
Click to expand...
Click to collapse
Media scanner isn't working hard in the background as far as I can tell. No to the two questions.

Play store/Youtube issues

I'm having this really weird issue with these two apps for a while. Basically I would keep getting connection error in the Play store or on Youtube every few minutes or so, then I would retry and everything would be back to normal. Odd thing is that I can have a browser open in a side window and go to google or any other website just fine while this issue happens. I'm not sure if there's more google apps affected. Hell one time it was so bad that Youtube refused to load for a good minute or so, I opened a pen window for the browser, loaded up the same youtube video in there and it started playing before the app even loaded it (kept giving me connection error).
I have Adblock Plus running in the background so I wonder if that's what's doing this..but it seems odd for it to affect these apps.
Any ideas to fix this?

C2Q said:
I'm having this really weird issue with these two apps for a while. Basically I would keep getting connection error in the Play store or on Youtube every few minutes or so, then I would retry and everything would be back to normal. Odd thing is that I can have a browser open in a side window and go to google or any other website just fine while this issue happens. I'm not sure if there's more google apps affected. Hell one time it was so bad that Youtube refused to load for a good minute or so, I opened a pen window for the browser, loaded up the same youtube video in there and it started playing before the app even loaded it (kept giving me connection error).
I have Adblock Plus running in the background so I wonder if that's what's doing this..but it seems odd for it to affect these apps.
Any ideas to fix this?
Click to expand...
Click to collapse
I don't have Adblock but I have issues with YouTube App aswell. It works most of the time flawlessly but sometimes like you it seems to take to long to load so what I do is close the app fully then launch it again and it works fine, I also had another weird issue of whenever I played a video in full screen and changed the tablets orientation it would dim the brightness to 0% (even changing the screens brightness to 100% wouldn't cause the app to brighten up) and hoy a "small weird box with what looked like signal bars next to it", this hasn't happened the last few times I used the tablet but its just bizarre so deffo something is up with the App that's for sure.

[Q] Music Player issues since lollipop...

Hi all,
First time poster so please go easy on me..
Basically since the lollipop update (stock unbranded HTC M8) my stock HTC music player app has developed a rather annoying bug which involves the music song displaying its length completely wrong (please see attached pics). This causes the track to skip and jump to another track completely. It is very annoying!
It is not just with the HTC Music app either, I use a podcast app and the problem is also persists on that app too.
I have cleared caches, deleted and re-installed the podcast app. I don't know what to do apart from factory resetting the device hoping that will fix it.
Any advice would be very much appreciated.
Thanks for reading
Andy

Digital_Enemy said:
Basically since the lollipop update (stock unbranded HTC M8) my stock HTC music player app has developed a rather annoying bug which involves the music song displaying its length completely wrong (please see attached pics). This causes the track to skip and jump to another track completely. It is very annoying!
It is not just with the HTC Music app either, I use a podcast app and the problem is also persists on that app too.
I have cleared caches, deleted and re-installed the podcast app. I don't know what to do apart from factory resetting the device hoping that will fix it.
Click to expand...
Click to collapse
Another one here with exactly the same problem. Unrooted, stock UK M8. Only happened since OTA update to Lollipop. Also noticed this (or very similar) issue appears to sometimes affect my Pocket Casts podcast app as well. The only time I've ever seen anything like this in the past was an old MP3 player I had that displayed incorrect times if music was encoded with variable bit rate. However all the music I have on my M8 is fixed bit rate so it's not that...
Does no one have any idea yet why this is happening or any suggestions for a fix? I've found that clearing the cache under Settings > Apps > All > Music can sometimes fix the issue temporarily. Soon comes back again though.

Ok this seems to have resolved it on my phone for now:
- Eject SD card (all my music is stored on SD)
- Go to Settings > Apps > All > Music > Clear Cache
- Go to Settings > Apps > All > Music Enhancer > Clear Cache
- Reinsert SD card
- Fully reboot phone by holding Power + Vol Up for 10 seconds
I'm still seeing a few isolated little glitches with some song times but they seem to be resolving themselves after a few goes, and the majority are currently displaying correctly.
Regarding the podcast side (using Pocket Casts app), I think I may have fixed this incidentally a few days ago when I moved my podcasts from using phone storage to SD. Taking this into account, it looks to be some kind of database corruption after the Lollipop upgrade, hopefully all ok after letting the phone rebuild its relevant media databases from scratch (I suspect a full factory reset would also fix it.) I wonder if the update included some kind of change to the MP3 decoding codec used which somehow misinterpreted the cached time info?

Same issue .. and lot of issues since lollipop
I did exactly like you said .. but I still get the same annoying bug .. and also there are many bugs after lollipop . like if you cleared recent apps and soundcloud was one , you see soundcloud's notification in the top left , when you slide it down , you see the latest song you have been playing , and it is frozen you can not clear it . and when you touch it , it opens again soundcloud .. you cannot fully close the app .. only if you did that in running Apps and force stop it .. EVEYTIME .. is that normal ? please help . and is it also possible to get back to Android kitkat ?!

I too have a similar issue... When playing, if I pause the song or audio book and exit the app, when reopening it forces the song or book to reset back to the beginning. Before it would resume from the place it was paused at.
Any ideas?

Audio messed up by lollipop
Hi
I am having the same issue. Any info on a solution?
Ivan

Digital_Enemy said:
Hi all,
First time poster so please go easy on me..
Basically since the lollipop update (stock unbranded HTC M8) my stock HTC music player app has developed a rather annoying bug which involves the music song displaying its length completely wrong (please see attached pics). This causes the track to skip and jump to another track completely. It is very annoying!
It is not just with the HTC Music app either, I use a podcast app and the problem is also persists on that app too.
I have cleared caches, deleted and re-installed the podcast app. I don't know what to do apart from factory resetting the device hoping that will fix it.
Any advice would be very much appreciated.
Thanks for reading
Andy
Click to expand...
Click to collapse
Does it play the full song inspite of showing the wrong length, or even the song's messed up ? A hard reset helps sometimes

Same problem here. Audios received by whatsapp have the same problem sometimes. I reverted to kitkat and the problem is gone, upgraded again to lollipop and problem is back. My music is on internal storage. Poweramp do not have this problem.

Hi,
I had same issue, it turned out that it appeared after turning off Nuplayer option in dev settings. When I turn it on again, as for now (2 days), works as expected.

MajkelKas said:
Hi,
I had same issue, it turned out that it appeared after turning off Nuplayer option in dev settings. When I turn it on again, as for now (2 days), works as expected.
Click to expand...
Click to collapse
i will try turning it back on to see if problem persists here.
EDIT:Turning nuplayer back on solved the problem. thanks.

I'll give that a try too. I can't remember why we turned off NuPlayer in the first place, but isn't there some other issue?

Guys the problem is caused by enabling dev options then turning it off
Just head into bev options and enable Nuplayer.it worked for me

Turning nuplayer on helps but than Messenger lags very often. Any solutions about that?

Thanks, turning on NuPlayer worked for me too !

Apps take ages to refresh

I've been having an issue pretty much since I first started using my phone, whenever I open an app that is already in the memory it takes it quite a while to refresh its data and it kind of just hangs there until it refreshes.
So for example I have a stock trading app which whenever I open it up none of the data/prices update for a few seconds.
My Reddit app Reddit Is Fun does a similar thing when press on a post it takes ages for the comments to load up.
I have the adguard DNS in the background that I've tried turning off thinking that might be the cause but it makes no difference.
I've tried changing the performance settings from optimised to high performance etc nothing changed
The only other thing I can think of is maybe because I used smart switch to copy over my previous phone s8+ to this one it may have created this strange issue.
Is anyone else noticing anything similar to my issue?
TIA

No, I have not experienced anything of the sort, apps open at 1 to 2 seconds max, bit I have read some posts that describe some troubles when restoring data from another device, I have never done it, I prefer fresh starts

shorty_blitz said:
I've been having an issue pretty much since I first started using my phone, whenever I open an app that is already in the memory it takes it quite a while to refresh its data and it kind of just hangs there until it refreshes.
So for example I have a stock trading app which whenever I open it up none of the data/prices update for a few seconds.
My Reddit app Reddit Is Fun does a similar thing when press on a post it takes ages for the comments to load up.
I have the adguard DNS in the background that I've tried turning off thinking that might be the cause but it makes no difference.
I've tried changing the performance settings from optimised to high performance etc nothing changed
The only other thing I can think of is maybe because I used smart switch to copy over my previous phone s8+ to this one it may have created this strange issue.
Is anyone else noticing anything similar to my issue?
TIA
Click to expand...
Click to collapse
I agree with you that Smart Switch could be the culprit .....reason is , that on my
Note 9 ,i had this very similar issues , with apps taking ages to refresh etc ..
I also used Smart switch ,to copy my backup from my Note 8 to Note 9 .
I eventually did a factory reset and issue was solved .!!
Since then i do not use Smart Switch anymore .!
If i now transfer my apps ,data etc , re Samsung Cloud and Google combined .
Samsung cloud for my Samsung apps and settings
and Google for my Play store apps, emails ,contacts etc ...
So it's possible that apps ,data from Smart Switch was corrupted either , with the initial backup or re install .
So you have to decided ,if it's worth doing a factory reset ?
Keep in mind there could be another reason/culprit .... also .!
In my case Swatch Switch was the culprit..!
Further ,i have High Performance ,enabled on my Note 10 + ,
and similar to @ winol
I have no issues with apps opening .!!
I have in past , tested "recent apps " feature over and over.
Apps open 9 out of 10 times instantly ...no lag or refreshing etc ..!
Good luck .
Note....
i also , have Adguard install and yes ,it could be AdGuard ,
but for example ...... i had issues with Firefox, not
connecting to a link ...trying to connect etc etc ...
I turned Adguard setting , " off" for Firefox .
( Adguard /Apps Management/ FireFox )
Issue was solved re Firefox .

Thanks for the replies.
Apps open instantly but take a second or two to refresh.
Seems like the only culprit could be having used smart switch to port over from my s8+
Annoying thing is now doing a factory reset and setting up my phone from scratch feels like a complete nightmare lol