yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab S Android Development] Zootopia:
I meant battery life has been improved with the kernel released by NVertigo.

Disregarding the new kernel, I believe you're right, recent builds provide slightly less good battery life, compared to some older ones.

However that has been adressed by NVertigo in stylish manner with the new kernel; battery life is now at least on par with the best battery friendly older builds, and still manage to deliver brilliantly performance wise.

It would take several hours to prove me right and test several builds,, but at least that is my honest impression.

What do you guys think?
[Galaxy Tab S Android Development] Bushcrafter:
I'm no expert on this subject and I agree it would take several hours and test builds too absolutely prove it. My tab just seems to use more battery power faster. Maybe its all in my head!:silly:
[Galaxy Tab S Android Development] :
This is so complex. It's about kernel, it's about cm commits and cm services, it's about gapps and play services and also use case - maybe even devices differ slighly... And only kernel is in my control range. Drives the control maniac, that I am, crazy... ;)
[Galaxy Tab S Android Development] heatfire:
Had problems with video playback on CM12 so went back to stock rom.. what a laggy mess..

anyone else having issues with videos sometimes seem to play to fast? and some codecs stutter.
[Galaxy Tab S Android Development] Bushcrafter:
Very true indeed! It is all about the kernel. Too many variables too truly narrow it down. In the past I have used different ROMs from different devs and also different kernel builds. Some kernels just use more battery than others. Don't get me wrong,I'm very happy with this build and kernel that nvertigo has managed to supply for us tab s users. And for that I'm grateful for sure! It makes the stock Samsung ROM look like child's play! Back to the regular scheduled programing!:good:
[Galaxy Tab S Android Development] :
Is that really your question? If so: no, with the videos I watch I haven't those problems.

If you ate asking for improvment, we need details and logs. Please refer to postings one through three of this thread.
[Galaxy Tab S Android Development] :
Before my inbox explodes I want to make a personal statement:

I will not abdomen this rom!

All I wanted to say with one of my last postings, is: my time will be very limited till November. To pu it in numbers: since starting development for cm12 I spended 30 to 60 h per week on development and support in this thread, and another 2 to 5 h per week in supporting other devs with their build. For the next 7 months I will spend 2 hours on this rom. My priorities in descending order:

Help [MENTION=1409248]lionheartk[/MENTION] to provide you with current builds

development: fixing issues

development: merging L blobs and kernel sources when availible

everything else

That's it. It's not dramatic, since we have a stable rom, with all main functikns working.

Relax - focus - flow (Brian Germain)
[Galaxy Tab S Android Development] eousphoros:
[MENTION=4405529]nvertigo67[/MENTION] Just wanted to say thank you for all your work. We wouldn't be where we are today if it wasn't for you.
[Galaxy Tab S Android Development] Zootopia:
That's quite a statement, coming from you.

But NVertigo certainly diserves it. ☺
[Galaxy Tab S Android Development] le_pere_noel:
Hi first thks for your work i have a small question i am using lionheart build is it possible to dirty flash your last build?
[Galaxy Tab S Android Development] DUHAsianSKILLZ:
I made a video long ago on how to install CM12. Forgot to post it here. Its not the best (ipad camera sucks!) but instructions are clear and is easy to follow. Hopefully Nvertigo can include it in the first post somewhere for new users... Incase people need to see it visually :p Heres the link: https://youtu.be/K96siaPKtrU
[Galaxy Tab S Android Development] Eliminater74:
Wifi 5ghz Channels Gone Missing.......

[MENTION=4405529]nvertigo67[/MENTION], I just wanted to say that with your new updated kernel, I lost the 5ghz wifi channel's.. Still got the 2.4 there.. At first I thought it might be my Router. but I checked all my 5ghz devices, and all still connected..

I just flashed a build that I compiled last night. that had your kernel, as you know.. Now I seen in your post that you made some changes to the kernel, If you made the changes just before or after I synced everything. Then Disregard this post. I prob just got the inbetween source. But I just wanted to let you know.

...
[Galaxy Tab S Android Development] barth2:
You need to set the Wi-Fi country code (ccode). Nvertigo set it to 00/EU by default. It's explained in the first post.

Edit: sorry, that's for end users. But I guess it applies to ROM builders too.
[Galaxy Tab S Android Development] Eliminater74:
Sorry, My Bad. I guess I should do alot more reading before posting.. Too much on my mind..

[MENTION=4405529]nvertigo67[/MENTION], Disregard that post.

Thank you [MENTION=5697750]barth2[/MENTION]
[Galaxy Tab S Android Development] Bushcrafter:
Well that's good news I must say. Even if you did no updating until November, this ROM and kernel still is the best thing out there for the tab s. IMO!:D:good:
[Galaxy Tab S Android Development] bynarie:
Thanks for this very informative guide. I am using it as a guide to help me in my building =]
[Galaxy Tab S Android Development] :
This change is to a config file - not to the kernel. It's noting more then the change you tested for me with your router set to channel 149 and ccode in a1 file to EU. You reported working 5GHz wifi after editing the config file. It's no kernel change. The config file is in vendor git, if you want to revert for your build.
[Galaxy Tab S Android Development] :
This is after one full uncharging/chatging cycle (remember it takes at least two of them to really tell). Browsing (mainly xda with the dark theme with Browser.apk), 2 h youtube and some ssh sessions (black bg).
[Galaxy Tab S Android Development] Eliminater74:
Understandable.. I was wrong anyhow. Its something to do with CM and RR. Looking on their forums I see that people are complaining about broken code from the last few days or so.

I took a copy of your kernel that compiled on new build and flashed it with my rom build #20150319 and it worked flawlessly. So yes I know its nothing to do with your kernel.

its broken code that I have. So as I said over there.. No more updates till I get a working rom again...
[Galaxy Tab S Android Development] FearlessSpiff:
So true! :D
[Galaxy Tab S Android Development] Eliminater74:
[MENTION=4405529]nvertigo67[/MENTION], Have you ever checked into this: http://xdaforums.com/showpost.php?p=54260287&postcount=1

Sounds pretty cool..
[Galaxy Tab S Android Development] :
I don't like automated updates in general - my oppinion for my device.

I'don't want automatic updates for this rom: It's beta, and the users should update hy hand, to be able to get a log, if something fails. And even if I decide to want OTAs for this rom, I woild hack the cm update innsettings. Or to put it arrogant and badassed: This is for devs beliving running a rom throughnkitchen is development... ;) (kidding, I know that they do good to sammy roms.)
[Galaxy Tab S Android Development] Eliminater74:
You have a good point, but I would have to say your rom building is far much better then most that I have come across. and if you call your rom beta, I cant even come to think what you call stable.. Because your Rom

is veryy good in my books. Yes I have used your rom in the past.. and yes, I can see you know your stuff better then most others. Also afte doing alot of searching on github, Almost every builder that I came across uses your source.

Anyhow, you do make a good point. I respect that. I still cant figure out what the t800 doesnt have an official CM build yet. They have the 10.1's ( I forgot the codename for them).

anyhow.. ...
[Galaxy Tab S Android Development] :
Oh, I think some points gets mixed up: As long as there is no M1 I don't even think about, that the rom could be anything other then beta. Let's wait for M2 and I delete the beta-statement from OP. Considering this rom beta doesn't mean it's unstable. I really think it's quite stable and most hardware is supported. It's useable as daily driver.

On the other hand the themeengine is at the moment not really stable. MHL is not working properly. And for sure some points I've forgotten to list... ;) All in all it's beta. (Hey, I'm nvertigo and not a pr-guy from ms or apple... When I usempeople for beta tests I tell them that I do that... ;)

Cm's policy is likewise: I'm pretty sure they will iron out the bugs and put back alot of cm features before they announce a milstone build...

So: beta does not mean unstable and permanently crashing.

(BTW: MHL not working is really annoing me - though I don't use it myself. Sadly I have not the slightest idea how to fix it.)
[Galaxy Tab S Android Development] Jacob_Bentzen:
Still nothing for the T805?? :(
[Galaxy Tab S Android Development] Hannibal226:
[MENTION=4405529]nvertigo67[/MENTION]

So rom is fine here, especially with newest version growing battery life.

But there are two things I recognized now:

* WLAN seems to be badder now. I read something about the GHz things but this should be a problem here, especially as I'm in Germany so the Europe setting is fine. Anyhow it feels slower and a bit unstable since update.

* The lollipop Screen Mirror doesn't find my chromecast. Seems to be broken generally then. On my phone with lollipop dream Rom working fine.

Rest fine for now but maybe u can look. work/fix on those two things ;)

CHEERS
[Galaxy Tab S Android Development] :
I have no problems or performance issues with wifi (at least not with 2.4GHz n and 5GHz ac). You can try setting the 5GHz also to EU or DE (nvram_net.txt*a0), or set both to DE.

For chromcast: I gave away my chromcast as christmas present. So I begged in the beginning of my cm12 development to test. I was told it was working with different devices (I don't remember exactly, but I think their was no one repprting for original chromecast). So it would be important for me to know, if that never worked, or if it stoped working with the new kernel patches or at some point before. Other questikn: does only screen casting does not work, or is casting from apps (i.e. youtube) not working?
[Galaxy Tab S Android Development] :
Yes there is a cm11 build for chagalllte - just search the forum. If you would have read this thread, you would have known I'm not building for chagalllte.
[Galaxy Tab S Android Development] Hannibal226:
Sorry where I find the nvram txt file to change?

Apps working well. For example streaming from YT works, but the general screen cast from system doesn't work.

Since when I can't tell u. I have the chromecast longer, but started using it really just a few days ago.

CHEERS
[Galaxy Tab S Android Development] :
/system/etc/wifi - see OP.

On cm11 a app was needed to enable general screen cast - can't search for it atm - no time.
[Galaxy Tab S Android Development] Hannibal226:
OK thank u. I'll look then.

Sorry because not viewing OP first, but that's anyhow the first place where I searched for.

Didn't find it this morning. Will look again ;)

CHEERS

Update:

So with 'DE' in both nvram_net settings it seems to be better and more stable. Thanks!

I especially recognized this while watching YT videos via chromecast.

But this bringing me to second thing. Chromecast at all working fine, but still not the main Android screen mirror.

And the app u mean is surly the standard Chromecast app, which I also found in a XDA thread with problems like this,but this I've always installed.

Maybe u have the possibility also to test the Bluetooth audio. Especially when u watching a video it's cutted and get a delay to video etc.

Via standard AUX working fine.

Thanks again and looking forward for more ideas xD

CHEERS
[Galaxy Tab S Android Development] leime68:
Anyone else not getting notifications from some apps?
[Galaxy Tab S Android Development] FacemanSmith:
No Recovery

I am a bit of a noob but have fashed quite a few devices before. I flashed my tab today and I can't get into recovery. ROM Manager wont reboot it, power and vol down just boots normally, TWRP app crashes every time and SuperSU can't update the binary.

Anyone any suggestions?
[Galaxy Tab S Android Development] :
Really not sure - very limited time - search for mirrorenabler.apk (or like that) here on xda.
[Galaxy Tab S Android Development] Hannibal226:
No stress, buddy.

Thanks for ur time and I'll have a look ;)
[Galaxy Tab S Android Development] :
supersu: enable dev options (tab 7 times on build number in settings -> abour tablet); then in dev options enable root.

Recovery: home, vol+ and power

Download mode: home, vol- and power

Only vol- and power: normal reboot.

Next time please use general or q&a forum: both questions does not relate to rhis rom. Thanx.
[Galaxy Tab S Android Development] FacemanSmith:
Thanks. Sorry for clogging your post it was only an issue after flashings so thought it was. I tried a factory reset and now stuck in a twrp boot loop :(
[Galaxy Tab S Android Development] Hannibal226:
Update:

It was exactly the name u mentioned (Mirror enabler).

After enabling mirror and quick settings mirror, then reboot - it's working now.

Thank u very much. Maybe a bit more invest in search could had help me, but maybe I was to lazy or searching in wrong direction.

Only problem is still the Bluetooth audio problem, which already exist in version before. But not such important atm, just recognized. Maybe u have an idea for fix in next days or so... ;)

Thanks & CHEERS
[Galaxy Tab S Android Development] FearlessSpiff:
What problems do you have with BT audio? I ask because I heard of problems before, but for me it is working perfectly. I use a Sony MDR-ZX750BN headphone.
[Galaxy Tab S Android Development] eousphoros:
http://www.sammobile.com/firmwares/download/44573/T800XXU1BOCC_T800XAR1BOC5_XAR/

No matching kernel source yet. :(
[Galaxy Tab S Android Development] Hannibal226:
For me it was working before 2-3 versions, too.

Maybe standard audio will work also.

I'm meaning the audio of videos. So watching a video with BT headset connected.

Video/audio getting stucking and/or delay.

CHEERS
[Galaxy Tab S Android Development] :
Unable to download. Just wasted 4GB of aborted downloads. 3G sucks... It's a pitty for the wasred money, but I have no time to deal with it the next weks anyway.
[Galaxy Tab S Android Development] :
So it stoped working before the kernel changes?
[Galaxy Tab S Android Development] Hannibal226:
U mean if problem also existed on release before the current one?

Then yes.

But I think the version before that or one more it was working (a bit time gone, sorry for unsure "infos")

CHEERS
[Galaxy Tab S Android Development] barth2:
I hate immobile. LOL. My keyboard just autocorrected Sammobile to immobile. Touche!!
[Galaxy Tab S Android Development] DUHAsianSKILLZ:
There is a mirror in this post http://xdaforums.com/showthread.php?p=58633854 sammobile caps your speeds. The mega links should download at full speed
[Galaxy Tab S Android Development] Eliminater74:
[MENTION=4405529]nvertigo67[/MENTION]. Do you have any plans to migrate to cm-12.1 AKA lp 5.1.0 ??

Just wondering.........
[Galaxy Tab S Android Development] eousphoros:
Unless something has changed I wouldnt recommend trying to compile 12.1 yet as they are still merging code.
[Galaxy Tab S Android Development] :
In gerrit I see no commit for branch cm-12.1 - only about 7 for staging/cm-12.1. So I would say, cm team has just started....

My priority is updating blobs and kernel. But don't expect to much to fast - rememner 2h a week...

As for the download: 3GB of broken downloads was on mega. On my 3g I will jave aborts - I would need a web serber supporting reget. Or a server I could fetch it with rsync.
[Galaxy Tab S Android Development] FearlessSpiff:
Not for me. I watched 50 min of a TV show over A2DP yesterday with all the latest stuff flashed. Without hiccup or anything...
[Galaxy Tab S Android Development] Jacob_Bentzen:
But I want the cm12 pleas ;)
[Galaxy Tab S Android Development] eousphoros:
Its good to want things. The code is posted for both t705 cm12 and t805 cm11. If you really want it get busy :)
[Galaxy Tab S Android Development] Bushcrafter:
[MENTION=3456089]nvertigo[/MENTION].Take your time,if you only have 2 hours a week to work on this project so be it. I'm perfectly happy with your build up to this point.Keep up the good work! P.S. Keep your stick on the ice.:good:
[Galaxy Tab S Android Development] Subsonic44:
F2FS?

From reading the thread, it sounds like this rom is F2FS compatible. I used Philz and formatted /data and /cache to f2fs. Flashed it but it would'nt boot. Only other issue I have is my Tab S seems to take a long time to charge. Any advice?
[Galaxy Tab S Android Development] lionheartk:
Today's build is live!

cm-12-20150324-UNOFFICIAL-lionheartk-chagallwifi.zip 238.1 MB

cm-12-20150324-UNOFFICIAL-lionheartk-chagallwifi.zip.md5sum 142 B

All CM12 commits since latest nvertigo's build. Dirty flashed and everything working!

Have fun!
[Galaxy Tab S Android Development] :
Yes and no: there is quite current f2fs source in kernel. You can use it for userdata or usb storage. system, data and cache is limited to ext4.

Charging: I havn't tried the latest build from yesterday, but my tab cahrges with the builds till 0319 build in 5 1/2 h from 0% to full. Strange.
[Galaxy Tab S Android Development] :
I have downloaded sammy's 5.0.2 rom and had a quick look at it. I tried just to exchanhe the blobs, but it won't boot - stayed on the samsung screen. I have to investigate - propably we need updated kernel source, but I Really don't know for sure. I can't even guess when I come to look on this in depth. I will do, but I don't know when. I just want to keep you informed.
[Galaxy Tab S Android Development] Eliminater74:
[MENTION=4405529]nvertigo67[/MENTION], I know this isnt any issue with any of your samsung sources, but I wanted to ask if you know what I can look into to fix this problem.

On RR,

My wifi 5ghz doesnt show up on any of my builds since build 22. But EU user tested it and it showed up. And I tried changing to every channel I could think of on my router and still nothing.

and I know its nothing to do with any of your samsung sources, but would you have any idea were I can look to figure out the problem. I guess what im asking is, where is the wifi nfo located at ?

Something has changed that makes US 5ghz not show up. but shows up for EU users.. I need to find out why. I thought you may have an idea that could point me in the correct direction..

Thanks..
[Galaxy Tab S Android Development] :
I have just changed, what YOU have tested for me. YOU told me iz's still working with channel 149 on 5GHz:

http://xdaforums.com/showpost.php?p=59537644&postcount=678

I answered this very same question from you a few days ago:

http://xdaforums.com/showpost.php?p=59587505&postcount=712

In OP I explain, whatmto do if you have problems with wifi...

Man, what have you tested? I relied on your information.

[MENTION=535343]all[/MENTION]: Can you see with the latest build without editing the wifi config file 5GHz channels >=149?
[Galaxy Tab S Android Development] Eliminater74:
I think you missunderstood me, but anyhow. Yes I tested it on my 18 build. and it worked no problem.

but ok. I just tried what your OP says and it worked. I guess I should read it a little better. Sorry, I was just to much in a hurry doing somany other things.......

Thank you.;
[Galaxy Tab S Android Development] FearlessSpiff:
Just experienced A2DP problems myself now. Only thing different is that I am connected to another AP in another room. I know this is a 2.4GHz AP only. The others have both bands, but when checking last time I was connected to 2.4 GHz also. So I will have to do some more testing if I can reproduce the problem.
[Galaxy Tab S Android Development] :
???

If manual reverting EU to 00 or US is fixing this, then it was the change in the nvram*a1 file, what break seeing 5GHz channel >= 149. I'm not missunderstanding - I don't understand at all.

???
[Galaxy Tab S Android Development] :
Propably it depends on which 2.4GHz channel is used? You can also try to set ccode to the contry code your router is operating in. Very unlikely, but perhaps a side effect from mismatch in ccode...:confused:
[Galaxy Tab S Android Development] FearlessSpiff:
I have a new problem with the newest version which I am not sure if I am the only one: When checking Battery usage I see sporadic reboots in the history. Just once a day or so. Also never happened when using the tablet.

I didn't check logs until now. Just wanted to check if I am the only one. Maybe it's just a bad flash? Or maybe I should try to do a clean flash?
[Galaxy Tab S Android Development] Bushcrafter:
My 5GHz was not working in the latest build either here in Canada. I reset the ccode in the a1 file to 00 and everything is working properly again.:D
[Galaxy Tab S Android Development] :
My fault. I beggged for testing my idea - nobody but one helpful dev tested - so I changed the setting relying on one single test. I will regertnthis commit. Thanx for reporting.
[Galaxy Tab S Android Development] barth2:
I changed ccode in a0 and a1 to US, since I didn't know what the numerical code is. It worked and I'm getting 5ghz. *¯\_(ツ)_/¯
[Galaxy Tab S Android Development] Eliminater74:
[MENTION=4405529]nvertigo67[/MENTION], Sorry I wasnt much help to you on the wifi deal.. As far as I know my Rom uses your samsung Sources as you already know. Anyhow I was on build 18 when I saw that post about the 5gz wifi channel

on channel 149.. my Router is on channel 149 and has always been there.. and since I was using your build, and it worked. Then I figure it worked. and thats all I know of. since I was on 5ghz at the time.

Sorry that a misunderstanding took place over this whole thing. I just know that when you asked about it. My Router was already on channel 149.. Why it didnt work after that, I dont know.

As I said, im new to all this, Im just trying to learn as I go. Im very greatful that you took the time to help new dev's learn the ropes. Not many people would even do that. And as I get out of your more recent posts,

you been putting alot of time into this project and that you will be taken some time away for a bit.

Anyhow, Hope we are still straight.. Hate to tick off the only dude that has helped me this far.....

l8rz.
[Galaxy Tab S Android Development] Bushcrafter:
Hi Nvertigo, we went through this same issue back on page 51 on this thread. Posts 502-506. I tested 5ghz for you after you explained how to do it for me. :D
[Galaxy Tab S Android Development] :
No, not exactly. That was about a change done in both files. And setting both to 00 is comfortable for North Amarican users. But cuts off channels 12 and 13 on 2.4GHZ for European users. My idea was to make it comfortable for European and Nort American users. So I asked TWO times for a test:

http://xdaforums.com/showpost.php?p=59481116&postcount=641

http://xdaforums.com/showpost.php?p=59481116&postcount=660

And only one single person answered the second posting.

I really think about setting ccode for bot files to EU - cause it's comfortable for me. All other users (the helpful mind, who tested, does not even use my rom) are willing to complain if they have to edit a file, but are not willing to do a simple test (which would take 5 minutes or less) when everything is fine for them.

[MENTION=5687366]Eliminater74[/MENTION]: Perhaps you have forgotten to save the edited file or to restart wifi. BUT THAT DOESN'T MATTER - such mistakes happen. No problem. It was my fault to ralay on a single test (ok, there were no other tests... :( ). I just found it a little bit annoying, that we had to discuss this change several times to make you realize that this change and the missing 5GHz channels relate. But anyway: MUCH MORE annoying for me is the fact, that you was the only one willing to test this questionable change. Thanx again.