yashsingh1/xdaforums huggingface dataset:
[Xperia Arc Android Development] Adam Hui:
both & all 2011 SE devices

*] front LED holographic keyboard >> another dream in android
[Xperia Arc Android Development] om91251:
ROM Review(Xperia pro mk16i)

1st of all thnk u developer and congrats for al ur hard work getting almost rit..

Reviews(Xperia pro mk16i)

Overall Good

Hardware keyboard working fully.

Free Ram-255MB(Without Gapps)(Best in class)

Everything Working except the device becomes bit laggy.
[Xperia Arc Android Development] rcreation33:
Unfortunately System UI has stopped working

I have updated CM ROM 12 to 12.1

But after optimization screen it is showing error "Unfortunately System UI has stopped working" with black screen.

What should I do?
[Xperia Arc Android Development] hanifbsk:
try to format data partition
[Xperia Arc Android Development] rcreation33:
Formatted Data/Factory Reset, Wiped out Cache still no luck
[Xperia Arc Android Development] snorlex:
maybe your sd is dead.... same problem to me and when i copy to sd some files, like music, they dont stay on sd....

P.S. is a SONY Class 10 sd..
[Xperia Arc Android Development] datumdatzgr:
I have also installed AOSP after seeing your responses. However, AOSP misses too many necessary things:

1. No status bar, notification drawer, lockscreen and quick access ribbon customizations

2. Keyboard backlight stays on forever (for mk16i)

3. U need a superuser app to grant su to apps

4. Missing dialer settings (Vibrate on hang up, answer)

5. Quick access ribbons dont support long press

6. Missing some developer options (kill on long press)

7. Many small things like battery percentage is not available or disabling button wakeups etc.

No offense.

In cm12, by disabling many unnecessary features and deleting some system apps I was able to achieve fluider interface.

Actually, I have no issue with UI speed or some other features. CM is the nirvana of android in terms of customizability and purity.

The only thing that enforces me to upgrade my phone is the browser performance. No matter which rom I install, we have poor browser performance in our 2011 device (Same for aosp). I generally use opera mini. But that is not the solution. I think we are at the hw bottleneck in that issue.
[Xperia Arc Android Development] vikusz:
Would you mind sharing which system apps you have deleted to get a smoother experience?
[Xperia Arc Android Development] datumdatzgr:
BasicDreams

Calendar (I dont use)

CalendarProvider

CalendarSync

CellBroadcastReceiver

CMAccount

CMFileManager

CyanogenSetupWizard (SetupWizard with CM icon)

Email

Exchange2

LegacyXperiaCenter

LiveWallpapersPicker

PicoTTS (In Turkey, no voice navigation is available for maps, so not a necessary apk for me)

PrintSpooler

ThemeChooser

ThemesProvider

UserDictionaryProvider

WallpaperCropper

WhisperPush

I also delete /system/tts folder.

I disable zram and android logging also (rm /dev/log/main). But they dont differ anything in real life (zram causes a bit lag for me i think).

I also set 1.3 Ghz and 1.4 Ghz to 1250 mv and set 1.4 as max freq.
[Xperia Arc Android Development] Se4fl0w3r:
hi

please anyone take me a screenshot from recovery menu of this rom

tnx alot
[Xperia Arc Android Development] rcreation33:
There is no music widget

Also sometimes on start up widgets don't come back by themselves

App view is list and there does not seem to be a grid view
[Xperia Arc Android Development] eldoctor94:
Use dukto.! I have the same issue.. Dukto is faster than BT...
[Xperia Arc Android Development] DemonicHawk:
None taken, everyone has their preferences and if you're really dependent on CM specific features then its not for you. If you only need a few features though I personally think it's easier to just start from AOSP and install the apps you need rather than start from CM and delete a ton of stuff.

With respect to browser though, I'm running Chrome beta though and besides the slow startup time, everything else is pretty fast (or at least on par with the default browser from kitkat).
[Xperia Arc Android Development] Se4fl0w3r:
There is no one?!
[Xperia Arc Android Development] L3RAT:
Unfortunately I don't have that power to make screenshots inside recovery, but its ordinary "Cyanogen SIMPLE recovery" and same screenies should be available somewhere ;)
[Xperia Arc Android Development] Kianush:
if anyone has tested both I need to know if this rom is faster than CM11.0 on xperia mini pro(mango) or not

Im on cm11 now and it's very smooth with no hangs or crashes so i wanna know if this cm12.1 can be a daily driver or not, thank u
[Xperia Arc Android Development] Neuen1:
Well, I have a Mango too and I switched from CM11 to CM12.1 and then to AOSP 5.1.1. I tested AOSP and CM12.1 several times before setteling down for the first one, which I think has more sense in a device like ours. AOSP has some missing features, but It's UI is really smoother compared to CM12.1 and almost the same on everything else performance wise.

Now, compared to CM11, AOSP and CM12.1 have one more missing feature. Overclock, due to the lack of custom kernels yet. But I keeped AOSP as my daily driver because it looks good and performs really well, it doesn't seem like it, but Material Design is really helpful to low resource devices.
[Xperia Arc Android Development] Kianush:
thanks for the complete info, but I thought they do have overclock feature as mentioned in working/not working list under working (up to 1.4ghz)
[Xperia Arc Android Development] DemonicHawk:
Overclock does work, you just have to install your app. I have my arc running at 1.3GHz using noFrills CPU Control: https://play.google.com/store/apps/details?id=it.sineo.android.noFrillsCPU
[Xperia Arc Android Development] Neuen1:
Sorry, my bad... You are right, overclock does indeed work, It's just that I had a 1.6 overclock in CM11 and that's not posible with CM12.1/AOSP
[Xperia Arc Android Development] rofl022:
I just installed the ROM, and I get the error "The process android.process.media stopped working" all the time. How can I fix that?
[Xperia Arc Android Development] dragongreen:
Hi [MENTION=3839575]mikeioannina[/MENTION]

when recording a video or audio in all CM based roms, the sound result from recording is quite low. I was searching and I found a solution. It cold be fixed by disabling noise reduction in audio part of the rom. Thanks for the hard work ;)
[Xperia Arc Android Development] yurasik_687:
Where exactly? Some screens or how can i get to this options.....?
[Xperia Arc Android Development] dragongreen:
In source code. You must rebuild the audio file with the disabled noise reduction part of it
[Xperia Arc Android Development] inksid:
Model : Haida

ROM : CM 12.1 June Release

The battery percentage suddenly drops to 1% even though the charge is at 41% or 30% and is revived only after charging. Any idea how to resolve this?
[Xperia Arc Android Development] DrEAmRBoY:
I've a haida and dont face any such issues . Recommend you wipe everything and reflash the kernel and rom .
[Xperia Arc Android Development] inksid:
Did that a lot many times :( the same sequence of the steps mentioned in the home page by Mike !! But no luck..
[Xperia Arc Android Development] Adam Hui:
I've faced same with my i9100 2 years ago, so i checked w/ my friend health new batt & problem gone.. :D

*] front LED holographic keyboard >> another dream in android
[Xperia Arc Android Development] GreatVegeta:
I want to use xposed installer. it is possible with cm12.1 on Arc S? IF yes please give an link, thank you all!
[Xperia Arc Android Development] MysteryIII:
No, lately Version of Xposed by Romracer causes bootloops. But you can use uninstaller to fix it, so you can give it a try for yourself, I tried it on Iyokan.

And you should ask this stuff in the Q&A thread! By the way the developer may say: CM does not support Xposed Framework in any way, so don't expect it.
[Xperia Arc Android Development] GreatVegeta:
As I know it works on CM11 very good at the time I used it
[Xperia Arc Android Development] MysteryIII:
Yes that's right. But CM Developers always say that they do not help with questions about Xposed, because even though it might be compatible it's not supported by Cyanogenmod itself.
[Xperia Arc Android Development] tinyXperia:
Your battery is dying, it's a hardware issue.
[Xperia Arc Android Development] Toni Suwanto:
Here you got some [emoji4] https://www.dropbox.com/sh/2xq9gybcqjr5x9j/AABXqyIpoP6VW2D7NeEG0Cn6a?dl=0
[Xperia Arc Android Development] FranckJZA:
really? I need more speed? I have a class 4 sd card. If I buy a new sd card like class 10 or UHS Class 3 my little trouble will fix?
[Xperia Arc Android Development] L3RAT:
First of all, guys, we have Q&A thread, so don't spam in [DEV]...

Secondly, it is not that easy as its not a matter of class or any UHS signature, but random rw speed with small (e.g. 4kb) packages -> some class 6 cards could give more perfomance, than class 10 ones. Just google it - there are plenty of benchmarks of different sd cards.
[Xperia Arc Android Development] trueno2k:
Amazing feat what [MENTION=3839575]mikeioannina[/MENTION] has done here, great stuff here!.. BUT, I have just one thing I like to ask, is the kernel and recovery packaged with this ROM the only available .img file that can be used to flash this ROM or there another one out here that I can use to flash this ROM such as one with CWM 6 instead of the default CyanogenRecovery?..

Thank...
[Xperia Arc Android Development] smashingeeks:
Recovery is attached with the ROM, just extract the ZIP and flash the boot.img first.

Thanks [MENTION=3839575]mikeioannina[/MENTION]
[Xperia Arc Android Development] trueno2k:
Yas, I know how to flashboot the boot.img file!.. I just wanna know if there is an alternative to this with CWM6 instead of the CyanogenRecovery version?..
[Xperia Arc Android Development] JukiCro:
It's great to see this awesome phone gets cm12 update these days...great job mikeioannina!:good:
[Xperia Arc Android Development] mikeioannina:
No, CWM is dead and no longer supported in newer android versions since November
[Xperia Arc Android Development] trueno2k:
So, it's CyanogenRecovery only for CM12 or go back to CM11 if I want to use cwm?..

Another question, is there are way to flash unsigned ROMs, such as if I uncompress this ROM, modify it, then re-zip and flash this modified zip?.. When I do this it seems that CyanogenRecovery doesn't allow me to flash this type of zip?..

Any ways great job on this so far, looks and feels awesome on this device albeit it being quite laggy and touch response is slow, however this is only in testing stages, right?..

Cheers!... ;)
[Xperia Arc Android Development] smashingeeks:
Though everything is working fine(on NEO L), I noticed two problems. The big one is Battery life, after I connected to Wi-Fi, battery percentage reduced to 10% from 60% in less than 30 minutes. The second one is, I tried the ROM before installing the mentioned Google Apps, and it was working smoothly without any significant lags. But after I installed the Gapps, it wasn't working as smooth as it was. I am experiencing lags too.
[Xperia Arc Android Development] Adam Hui:
Problem of 5.0.x on low-end device are ART app precompilation process (dex2oat) is too slow & the latest Google Play Services package (com.google.android.gms) is huge makes its compilation doesnt complete in the allowed time (6 minutes). Which it all make the low device lagging, 'android is upgrading' suck at boot & battery drainage cuz its looping check & progress.

A workaround, feel free to modify build.prop by adding this line :

dalvik.vm.dex2oat-flags=--no-watch-dog

dalvik.vm.image-dex2oat-filter=speed

dalvik.vm.dex2oat-filter=interpret-only

the dex2oat time for PrebuiltGmsCore.apk is finished 1 minute 12 seconds.

*] front LED holographic keyboard >> another dream in android
[Xperia Arc Android Development] metaljoker:
Preparing myself up to test this ROM for good!

---------- Post added at 03:38 PM ---------- Previous post was at 03:24 PM ----------

What would these do actually?!

dalvik.vm.dex2oat-flags=--no-watch-dog

dalvik.vm.image-dex2oat-filter=speed

dalvik.vm.dex2oat-filter=interpret-only
[Xperia Arc Android Development] HEMEN TALUKDAR:
For ext4 partition guide here !!

http://xdaforums.com/showthread.php?t=2126363
[Xperia Arc Android Development] metaljoker:
Google the exact name "Flashtool-drivers.exe" install it AND...... BOOOOOM!!!!! DONE!!!!
[Xperia Arc Android Development] trueno2k:
LOL... A bit behind the times are we?.. Ha Ha, I sorted this out several posts ago!.. Anyhow thanks dude for your input, but your suggestion isn't gonna work!.. The right way to get flashtool working is to install the latest flashtool, turn off driver signature requirement ( you need to do a search to figure how to do this though ), locate the flashtool drivers in the location where flashtool was installed and install the flashtool drivers!.. Then it's Booooooom!.. Done!..
[Xperia Arc Android Development] metaljoker:
Way to go! :D
[Xperia Arc Android Development] son_91:
Phone restart when flashlight is triggered.
[Xperia Arc Android Development] trueno2k:
Whoops, I meant to say your suggestion isn't gonna work!.. [emoji14]

Sorry... ;)
[Xperia Arc Android Development] metaljoker:
And I meant by "Way to go!" that your suggestion is good to be mentioned which I agreed. :laugh:

And guess what? My way worked miraculously! Try it in another PC.
[Xperia Arc Android Development] trueno2k:
[emoji14] = :p
[Xperia Arc Android Development] plb-dev:
Absolutely not. Use a battery calibrator to reset the batterystats file , and all will be fine.
[Xperia Arc Android Development] mikeioannina:
New builds

Hi guys, after long time some new builds are coming.

I have included some improvements for LPA, you should be able to use it now to get rid of music stuttering.

You can test it by adding lpa.decode=true in build.prop. It is known that LPA breaks a2dp streaming, we are trying to fix it.

You might also notice that the headset volume is louder than usual and audio effects might distort the sound.

## Nightly build 20150723 - cm-12.1

* Latest cm12.1 changes

* Use upstream gp2a proximity sensor kernel driver (zeus)

* Fixed CVE-2015-5366

* Decreased zRAM size to 128MB

* Added support for DM9601 based USB ethernet

* Fixed mounting of non-FAT formatted SD cards

* Set FIOPS as default IO scheduler instead of ROW

* Updates & fixes for LPA

* Testing lowmemorykiller changes to improve zRAM OOM issues

Builds will roll for all devices tomorrow, after the cm-11.0 builds are up.
[Xperia Arc Android Development] DemonicHawk:
Has anyone installed the new build yet? My mobile data doesn't work..and I've already double-checked my APN settings.

EDIT: NEVERMIND, I fixed it by deleting all the other APN entries. I guess just selecting the correct one wasn't enough.
[Xperia Arc Android Development] Kianush:
is it uploaded??!

no new update for mango yet

is smoothness any better??!
[Xperia Arc Android Development] saqibkhan:
like you really didnt read what Mike mentioned.. he said today on 23-july that the builds will be uploaded tomorrow on 24-july .. so how can you ask such questions just below his post.. lol.. Plz give him some time
[Xperia Arc Android Development] DemonicHawk:
I'm on anzu so it was uploaded a while ago, its been pretty smooth so far. I'll have to use it a while and see if it says that way though.

As a side note, I added "lpa.decode=true" to my build.prop, but I don't really see the difference. I tried playing music before and after adding that line (with reboot) and the CPU usage still hovers around 25% when playing music. Music doesn't skip though.
[Xperia Arc Android Development] Langes:
Mango build just completed, so give it about 40 min to upload.

Builds are going alphabetically, so if your device still has to build, calculate 1:50 per build and another 40 min for the upload and you will have yours :good:
[Xperia Arc Android Development] dragongreen:
Can you tell me if low volume (when recording video or audio...) is fixed?
[Xperia Arc Android Development] mathewgx:
On Urushi system formatting tool keeps creating ext3 partition.

Can anyone fix it ?
[Xperia Arc Android Development] Kianush:
I have an ext4 part on my sdcard but link2sd still gives error and how to know what partition system formating tool makes??
[Xperia Arc Android Development] mathewgx:
Installed on Urushi latest version :

second partition ext3 not ext4

apps take too long to install

when receiving call screen takes 1-2sec to turn on

Generally , this isn't a ROM to use in daily base. Needs optimization for our phones.
[Xperia Arc Android Development] effe12:
Hello gang, anyone having install abort on F2FS partition with new build? Or is it just me? (Urushi, F2FS 4Go ext...)

Any insight appreciated, Cheers!

Whatever... just did a clean install, and it's all good...
[Xperia Arc Android Development] DemonicHawk:
I don't really use video/audio recording, but i just tested the audio recorder out and it seems like i have to be really loud to get it to register on the device. If that's what you mean by low volume, then yeah its probably not fixed.

Why is your second partition ext3?

If you think its still too slow, either your SD is likely not good enough (with respect to random r/w - NOT advertised speed) or your expectations are simply too high. I think the level of performance we're getting is quite reasonable and most definitely usable as a daily driver.
[Xperia Arc Android Development] dragongreen:
Ok thanks.
[Xperia Arc Android Development] Kianush:
dont know if I agree with you, when I was on last build it was always laggy from the start(not with many apps just the gapps) and it took too much time to install apps and Im saying it in comparison to cm11, I have a class 10 philips sdcardwith ext4 2nd partition so dont know if it's because of that.

so I couldnt use it as daily driver!
[Xperia Arc Android Development] saqibkhan:
I have a ext4 partition already.. so I would have to change it to ext3 u mean to install this Build ??

has anyone installed it on Zeus ?? Xperia play
[Xperia Arc Android Development] DemonicHawk:
It's definitely due to your SD card, just class 10 is not good enough. Random read/write performance is what matters. Take a look at some benchmarks here:

http://www.tomshardware.com/charts/microsd-cards-2014/-7-Random-Read-4-KB-QD-32-MB-s,3486.html

http://www.tomshardware.com/charts/microsd-cards-2014/-8-Random-Write-4-KB-QD-32-MB-s,3487.html

Philips isn't on there, but you can benchmark your SD card using something like A1 bench to see what your performance is like. I had a Lexar Class 10 SD card previously and it was definitely slower than CM11. Since upgrading to a Samsung EVO though, performance is nearly on par with that of CM11.

Also, this information should seriously be in the first post since too many people think that class 10 is good enough.
[Xperia Arc Android Development] Kianush:
thanks but my question is if it's due to my microsd low speed so why is it different on cm11?

and also I had cm12 on another phone and that was ok too, just this phone shows issues

----

btw what r/w speed do I need??!
[Xperia Arc Android Development] mathewgx:
I create a second partition 2gb ex4 , but when I install cm12.1 it turns into ext3. This never happened with other ROMS.

My sdcard is http://www.amazon.co.uk/computers/d...ywords=SANDISK+EXTREME+SDSDQXN-016G-G46A+16GB , I think is fast enough
[Xperia Arc Android Development] DemonicHawk:
Since CM12, the /data and /cache partitions have been moved to the SD card. This is equivalent to using Link2SD and linking the app, data and cache. That means app performance will depend very heavily on the random IO performance of your SD card. I don't know what your other phone is, but it likely doesn't have this setup.

You need to understand that "advertised" speed = sequential speed. This is important for multimedia such as music videos, but not so important for things like application data and cache. Manufacturers do not advertise random IO speed. Again, please take a look at the micro SD card benchmarks:

http://www.tomshardware.com/charts/microsd-cards-2014/-8-Random-Write-4-KB-QD-32-MB-s,3487.html

http://www.tomshardware.com/charts/microsd-cards-2014/-7-Random-Read-4-KB-QD-32-MB-s,3486.html

TL;DR:

Sequential performance (advertised) = Good for music, videos, pictures, etc..

Random IO speed (unadvertised) = Good for app data, cache
[Xperia Arc Android Development] niks255:
Does turning off high quality effects still cause SystemUI crash?
[Xperia Arc Android Development] Kianush:
so why does it change second partition to ext3? any idea?
[Xperia Arc Android Development] BigBenlolz:
Try and make the partiiton again,sounds stupid,but when I changed my f2fs partition to ext4,I think it made the same thing like yours.

Had to redo everything and after that it worked.

Stupid question again,but you installed link2sd right?
[Xperia Arc Android Development] Kianush:
yes i did but it game me a fail error and double checked and saw that my second drive is ext3 not 4, so did everything againg and now I have ext4 but link2sd still give fail error when trying to link!!!!!
[Xperia Arc Android Development] Langes:
Why are you using Link2SD on this ROM??? If you read the instructions properly and did what it said, you should have realised that the /data partition is now on the SD already ... no need for link2sd anymore
[Xperia Arc Android Development] dwellexity:
Has there been any improvement in dialer and callui responsiveness? Does it still take around 5 seconds to show the incoming or outgoing call screen?
[Xperia Arc Android Development] datumdatzgr:
Still same.
[Xperia Arc Android Development] Kianush:
that is not the point! My question is why does this rom change ext4 to ext3??? rom becames very slow on ext3!!!
[Xperia Arc Android Development] Langes:
It is exactly the point. You said

So the ext4 issue was resolved, your only issue was with link2sd ... which is expected because you want to link apps that are on your SD to your SD ...
[Xperia Arc Android Development] Hydrony:
Great Rom. But i have some problems with greenify. I always get a warning message that some system settings do not allow greenify to automatically hibernate apps. Anyone else experienced this?
[Xperia Arc Android Development] Kianush:
Huh that is very funny u telling me what my problem is!yes I found that out and removed link2sd

why did it change to ext3 the first time, that is my question,
[Xperia Arc Android Development] Langes:
That I cannot answer. What I can say is this: the kernel in the ROM does not change the file system on the /data partition. If this was the case, we would not need you to make ext4 partitions beforehand.

If the /data partition was not recognised as ext4 the first time it was possibly not correctly formatted as ext4, especially in light of the fact that it was properly recognised as ext4 after formatting again.
[Xperia Arc Android Development] mathewgx:
The ext3 partition bug appears only on CM12.1 Rom. Ext4 partition (created the same way with minitool partition manager) works ok with overlay ROM)
[Xperia Arc Android Development] mikeioannina:
The 'ext3 bug' is impossible to be caused by the ROM. It simply cannot happen. If you followed the instructions from the beginning you shouldn't have any issue.
[Xperia Arc Android Development] mathewgx:
This is what happens :

I create a ext4 primary partition with minitool.

Flash the kernel , install system formatting tool ,wipe data,cache and then the ROM. Reboot into recovery , and check again with minitool. Partition. Partition is ext3. Reformat partition to ext4. Flash again rom , partition changes into ext3 again.

I'm not a nood and not the only one have this bug. So , need looking into this.
[Xperia Arc Android Development] Langes:
What happens if you follow the whole process without using the "system formatting tool"?
[Xperia Arc Android Development] mathewgx:
Can't say , didn't try that.
[Xperia Arc Android Development] mikeioannina:
I just tried on most devices I have and couldn't reproduce. The fstab entries only contain ext4 and f2fs entries, there is also no tool/script/etc included in the rom that formats the partitions automatically.