yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab S Original Android Development] UpInTheAir:
Just did a first Antutu test (for stability), and did observe (cool tool app) that TW DVFS does still indeed cripple CPU & GPU freq scaling. I did reach CPU max OC 2100 MHz without issue. Can't wait until xposed is working for odexed ROMs. The CPU was scaled down at times without exceeding temp throttle steps and GPU was scaled down to 350 MHz (well under thermal throttle) towards the end of graphics test. This is typical TW DVFS behaviour.
[Galaxy Tab S Original Android Development] maxq1:
well whadoyouknow, wanam released a version of xposed based off arter's work (& of course rovo) primarily for his wanam xposed module. installed it (flashed over arter's v2) then disabled DVFS via the xposed module (v1.0.5). seems to work...

prior to running antutu:

after:

now if only i could get those cpu freqs to survive a reboot i'd be a happier camper. and yes, UITA, i've removed all apps that i think can interfere :o
[Galaxy Tab S Original Android Development] UpInTheAir:
Now, with all crap gone,.........

force close Synapse and wipe data

re-flash kernel.

Wait 2 mins after boot

open synapse

make any change (try the CPU freq) > apply

re-boot

wait 2 mins (should have "synapse boot completed") before opening Synapse again

This is basically in the install instructions
[Galaxy Tab S Original Android Development] freaksamael:
please be aware - T805 desn't boot with the new kernel

EDIT: SM-T805 firmware T805XXUBOCC (Build date Tue, 17 Mar 2015) on IronROM v2.1
[Galaxy Tab S Original Android Development] UpInTheAir:
Had a feeling, but only way to be sure is for someone to actually test.

Please post your ROM build number
[Galaxy Tab S Original Android Development] freaksamael:
SM-T805 firmware T805XXUBOCC (Build date Tue, 17 Mar 2015) on IronROM v2.1
[Galaxy Tab S Original Android Development] UpInTheAir:
Damm. I just deleted it from download section. User needs to test on the latest available T805XXU1BOD1. Not one of the older builds. If this doesn't work, then have to wait for Samsung release.

I'll re-upload in a few hours or so.

Unless you wish to flash and test first by updating with Odin?
[Galaxy Tab S Original Android Development] freaksamael:
Take the leap of faith and flashed my uploaded stock kernel (Extracted from UK T805XXU1BOD1/T805BTU1BOC1/T805XXU1BOD3/T805XXU1BOD1) onto T805XXUBOCC IronRom v2.1. All working, wifi, mobile data, etc. Hope it helps!
[Galaxy Tab S Original Android Development] UpInTheAir:
Not really. Was actually looking to have SkyHigh flashed on top of full D1 firmware base. We would then know for sure if T805 users have to wait for a Samsung update.
[Galaxy Tab S Original Android Development] freaksamael:
I'll do it! Upgrading now to stock UK T805XXU1BOD1, installing custom recovery. Please send me the download link for t805 v1.1 kernel :D
[Galaxy Tab S Original Android Development] UpInTheAir:
Hey thanks, I'll PM it now because I deleted it from XDA. Please have your boot.img backed up in recovery, because it still may not work. But at least things will be conclusive either way ;)
[Galaxy Tab S Original Android Development] freaksamael:
Bootloop. The new T805 v1.1 kernel isn't compatible with the latest T805XXU1BOD1 due the old Samsung base.

Thanks UITA for your support!

Well, the good part - I'm now on the new radio & bootloader. But still no kernel magic :)
[Galaxy Tab S Original Android Development] UpInTheAir:
Yep. Think positive.

We are thankful for your time to test :)

Just have to wait afraid until Sammy pulls their finger out.

T805 users will have to keep an eye out for any pending Samsung update and post the boot.img here when able. If I'm home, I'll then try to build a working SkyHigh kernel for you. ;)
[Galaxy Tab S Original Android Development] ninspector:
Using LZMA manually decompressed the ramdisk, thanks for your answer. Another Issue: If the min GPU frequency is set under 200, let's say, 177MHZ, the screen normally blinks several times when switching from an app to the lock screen and vice versa. But setting min GPU frequency on or above 266MHZ will not trigger this "blink" phenomenon.
[Galaxy Tab S Original Android Development] UpInTheAir:
I don't get that exact bug, but occasionally get a similar thing after exit at back to home or app drawer. It seems random, and I've never caught it with log. I don't have time to go chasing it right now, other priority, but maybe you could slightly increase GPU QoS for 100/177 MHz MIF/INT and see if that helps.
[Galaxy Tab S Original Android Development] maxq1:
update: completely wiped my device instead and started all over from a clean install of detox. at first, all settings could be set but won't survive a reboot. converted synapse as a system app and all settings are good after re-/boot EXCEPT

max

cpu freq.

min

cpu freq, voltages, gpu freqs/voltages are fine. i've tried instructions above, changing busybox versions & even deleting shyhigh folder in /0.

gave up experimenting already since i could underclock min freqs & lower voltages anyway while enjoying a smoother, batt-friendly device (& consistently hitting 42k on antutu at that!) . again, big thanks, UITA :good:
[Galaxy Tab S Original Android Development] UpInTheAir:
Please read Post #3 Rules #11.

I don't build to support specific custom ROMs (except my own), just try for latest stock ROM for each variant. I'm not interested in debugging others work or older bases, where more than likely the issue originates. ;)

Glad you're starting to enjoy the experience :)
[Galaxy Tab S Original Android Development] andrea0807:
Thank you for bringing the kernel SkyHigh on lollipop, I run these settings to increase battery life:

CPU GOV: = ondemand governor (tweaked for power efficient workqueues)

CPU FREQ: 200-1900 MHz (-25 mV) (step 4)

GPU: 100-480 MHz (-50 mV) (100 MHz may induce some sluggishness GUI) (step 8)

GPU: Midgard Power policy control = coarse_demand

GPU: Midgard Power policy threshold control = Battery

PowerSuspend Driver = Enable

MEMORY: Dynamic FSync = Enable

MEMORY: Dirty Page Writeback = Enable

Multicore CPU Power Saving = (2) Agressive

Power efficient work queue (PEWQ) = enabled

You can set something 'more to improve or that's it?

(Already it has improved quite a bit):)
[Galaxy Tab S Original Android Development] UpInTheAir:
I will add back the generic battery/performance settings (from KK kernel threads) to Post #3 later on.

There's always more, such as playing with governor tunables etc, but really prefer to keep things simple ;) I just expose a lot of sysfs entries and User themselves can research and test with those themselves.

Things like GPU QoS and DEVFRQ can be quite touchy, so I just leave things how they are. User can fine tune things, but be careful of instability !

I am actually testing Hot plugging right now, we'll see how that is on LL. :)
[Galaxy Tab S Original Android Development] UpInTheAir:
Hotplugging
[Galaxy Tab S Original Android Development] j1gga84:
Would a BOD5 Ramdisk help you in this case? It is the newest base from Samsung for T-805

I could upload it when I am at home - but it must test somebody else because I am still on KK, got no time yet to upgrade to LP

regards
[Galaxy Tab S Original Android Development] UpInTheAir:
If you mean the Chinese T805ZHU1BOD5 ????

You can't really compare the change-list of this firmware variant with International releases, they seem to be on a different "branch".

But it's worth a try though. It may work.

When-ever you have time to upload is fine :)
[Galaxy Tab S Original Android Development] freaksamael:
T805ZHU1BOD5 TGY (HK) - Changelist 4639156, 21 Apr 2015 (newest)

T805XXU1BOD1 BTU (UK) - Changelist 4620222, 03 Apr 2015

As far as I know (but maybe wrong) HK firmware doesn't have 5Ghz WiFi; a module could be needed to be inserted. But I may be wrong.

Anyhow, please find attached the kernel from T805ZHU1BOD5. THANK YOU!

EDIT: Kernel removed, new version upped, keep storage clean :).

View attachment 3368317
[Galaxy Tab S Original Android Development] UpInTheAir:
Thanks for the post.

Doesn't necessarily mean "newest". They are build and released along different branches, so change-list isn't a guide. The dates aren't either, because of that.

WIFI module is built into kernel, but permissions etc are in ramdisk (edit: and ROM).

But as I said, it's worth a try and test. It's not too much hassle for me to build it. You or other will just have to test it.

Will try tomorrow night, I've really had enough for today :)
[Galaxy Tab S Original Android Development] jpearn:
OK, so I am back at work now so I have time to flash the new kernel ! My model is an SM-T700 wifi, I am using the same T700XXU1BOE5_T700BTU1BOD1 image same as the boot that I left you with, however I am getting a bootloop after flashing. It goes to the Samsung logo, and then I get the jingle, then the jingle again every couple of seconds.

Flashed with the above image with 1 full boot, CF_Autoroot / TWRP, then flash the kernel. I tried an older image T700XXU1BOD5 and get the same.

I ran through everything in posts 1 through 3, tried flashify with just boot from the zip file, same result. I made a backup of the kernel with Flashify and use that to get back onto a working system. Someone else also had this problem, but I did not see how they fixed it, do you have any ideas ?
[Galaxy Tab S Original Android Development] UpInTheAir:
Are you using xposed ?
[Galaxy Tab S Original Android Development] jpearn:
No xposed
[Galaxy Tab S Original Android Development] UpInTheAir:
Out of the x125 T700 downloads, you would think at least ONE user could confirm.

To all users, when replying what works and what doesn't, please also post, ROM name/version (if custom), ROM build number and boot-loader version. All found in Synapse INFO section

As this is not really development, if users could please continue with this in the thread Q&A section.

http://xdaforums.com/galaxy-tab-s/help/qa-skyhigh-tw-ll-kernels-t3134266

Thanks
[Galaxy Tab S Original Android Development] UpInTheAir:
v1.2 T705 LTE update

v1.2 update release for SM-T705 LTE device

Don't forget to force stop & wipe Synapse data before flashing !!

I will look at others devices

possibly

later tonight. I will be busy this afternoon with family commitments

Cheers :)

UITA
[Galaxy Tab S Original Android Development] maris__:
Great, thank you very much! All works very well. Got the impression that the boot process is now faster than before.

Best, maris
[Galaxy Tab S Original Android Development] freaksamael:
New Sammy base: T805XXU1BOE3 - for Nordic Countries. Downloading. Will provide kernel in a moment.

EDIT 1:

Model	SM-T805

Model name	GALAXY Tab S 10.5 LTE

Country	Nordic countries

Version	Android 5.0.2

Changelist	4993066

Build date	Wed, 27 May 2015 06:16:11 +0000

Product code	NEE

PDA	T805XXU1BOE3

CSC	T805NEE1BOE1

EDIT 2: Kernel attached; should work, BOE edition :)

THANK YOU [MENTION=3511708]UpInTheAir[/MENTION] !
[Galaxy Tab S Original Android Development] triplex76:
it doesn't work.it remains fixed on the start screen and you can hear the booting sound going in bootloop over and over again.

flashed using cwr over the stock one and wiped cache
[Galaxy Tab S Original Android Development] UpInTheAir:
I DOES work. Did i photoshop my screenshot attached ? .....

Please read Post #3 like you were supposed to.
[Galaxy Tab S Original Android Development] UpInTheAir:
Maybe, but probably slower boot than

stock due to extra modules and slower compression / decompression method needed to reduce size for partition

I'm on it right now. When done I'll PM for test.

EDIT: PM sent with link :fingers-crossed:
[Galaxy Tab S Original Android Development] triplex76:
yea... I didn´t want to be rude at all ... I´m just posting my experience to find out why it doesn´t .

Maybe it´s something related to cwr ... I have to try with touch recovery and see if it boots .

I gave one more try but nothing ... I hear it booting but the screen remain fixed on the boot screen (samsung logo ... powerde by android)

really don´t know why.the older one works perfectly
[Galaxy Tab S Original Android Development] UpInTheAir:
Please RE-READ POST #3 BEFORE POSTING ANYTHING. I couldn't care less what your experience is

if you have not followed the thread RULES

............... This thread is supposed to be development and certain protocols are a requirement.
[Galaxy Tab S Original Android Development] freaksamael:
Victory! :good:

New SkyHigh v1.2 for T805 kernel boots and is working fine for

Model SM-T805

Model name GALAXY Tab S 10.5 LTE

Country Nordic countries

Version Android 5.0.2

Changelist 4993066

Build date Wed, 27 May 2015 06:16:11 +0000

Product code NEE

PDA T805XXU1BOE3

CSC T805NEE1BOE1

Now waiting for a re-based ROM :D

Thank you, UITA!
[Galaxy Tab S Original Android Development] UpInTheAir:
v1.2 T700 WIFI - T800 WIFI - T805 LTE released

v1.2 update release for SM-T700 WIFI & SM-T800 WIFI devices

v1.2 initial working release for SM-T805 LTE device. Thanks to [MENTION=938118]freaksamael[/MENTION] for the test :highfive:

READ Posts #1-3 and especially Post #3 for confirmed supported firmware base !!

Don't forget to force stop & wipe Synapse data before flashing !!

Have fun ;)

Cheers :)

UITA
[Galaxy Tab S Original Android Development] DUHAsianSKILLZ:
Update for T800 working great and with no issues. Thanks!
[Galaxy Tab S Original Android Development] UpInTheAir:
Something to try if you are a SM-T700 WIFI user and having issues with SkyHigh kernel booting.

To help yourself, you can do as requested in Post #3 and flash T700XXU1BOE4 firmware base, and then send me the E4 boot.img. I will re-build the kernel with the E4 ramdisk for YOU to test ;)

Please post it in thread here if you wish to test. The offer is there, I won't go chasing it ;)

Cheers :)

UITA
[Galaxy Tab S Original Android Development] UpInTheAir:
Great :) Thanks for the report !
[Galaxy Tab S Original Android Development] gsw5700:
Thanks for that, should the kernel then run on BOD5 firmware as used in Cloudy Rom 2.3?
[Galaxy Tab S Original Android Development] ieldra:
I just installed this on my t805 LTE (Exynos 5420) .

After flashing it started optimizing android apps, then after that it told me System has stopped responding : wait/kill

Choosing either of both options prompted a black screen. I kept trying to reboot into recovery from the System has stopped responding screen (pwr+home+volup) but it just kept restarting and bringing me back to the system not responding screen.

Then I tried holding down power+home+voldown from the System has stopped responding prompt, device rebooted normally :S
[Galaxy Tab S Original Android Development] UpInTheAir:
How would i know ?

As ROM is older firmware, unlikely.

Nice story......

Read Post #3 ? You'll then know what's required of you and device before posting. Thanks
[Galaxy Tab S Original Android Development] dknk99:
SM-T700

T700XXU1B0E3

Build: Tue May 5 2015

Country: Canada

Android 5.0.2

3.4.39-SkyHigh_TW_LL_v1.2

Installed using TWRP 2.8.6.2

No issues detected so far, all seems well.

Thank you..
[Galaxy Tab S Original Android Development] UpInTheAir:
Thanks for reporting working on your firmware base, I'll add it to Post #3
[Galaxy Tab S Original Android Development] gsw5700:
Works fine on TWdetox V3.0 ROM on SM-T700 using TWRP 2.8.6.2
[Galaxy Tab S Original Android Development] rookie12:
TWDETOX V3.2 OR 3.0 or am I missing a update??
[Galaxy Tab S Original Android Development] gsw5700:
Sorry, Its TWdetox V3
[Galaxy Tab S Original Android Development] jpearn:
OK, flashed TW Detox 3.0 and kernel 1.2 for T700 and it works ! Lucky I downloaded that version before I left home ;) So E4 base for T700 looks good, E5 has issues.
[Galaxy Tab S Original Android Development] UpInTheAir:
At last you both got something going. Great :)
[Galaxy Tab S Original Android Development] powermax91:
Also works here like a charm on my deodexed BOE3 rom on T805 with no issues so far.

Thanks [MENTION=3511708]UpInTheAir[/MENTION] for this awesome kernel, really was waiting for it.

BTW, I have xposed and wanam xposed installed.
[Galaxy Tab S Original Android Development] UpInTheAir:
[Re: STORAGE CONTROLS] Good news !!

Have finally got UMS (USB Mass Storage) Mode working !!

Switching between MTP and UMS in Synapse with no issues :D This took ages to work out...... Still got some work to do yet on some other USB controls still giving grief ;)
[Galaxy Tab S Original Android Development] rookie12:
Are you planning to do double tap to wake and sweep to wake features?
[Galaxy Tab S Original Android Development] UpInTheAir:
No. I don't have a working patch to suit our device drivers and haven't managed to port anything successfully either.

This UMS (although appearing simple) has taken a long long time (from KitKat days) to get working right. These things don't happen overnight ;)
[Galaxy Tab S Original Android Development] MohamedN:
[MENTION=3511708]UpInTheAir[/MENTION] my prayers for you to come back have been answered [emoji106] [emoji106]

Sent from my GT-I9505G
[Galaxy Tab S Original Android Development] UpInTheAir:
Dammit. Got up this morning and had a go at add some more controls. Power cut and lost my original work.. . Forget exactly what I'd done the night before, and can't get switch back from UMS - MTP :banghead: back to square one ahhh

Edit: think I've found the answer, but got to go out. This thing is just so funky!
[Galaxy Tab S Original Android Development] nutley:
Hey UITA thanks for this Kernel, it's working very nicely so far. Is it possible to build controls for the touch key lights into it? Such as reducing the brightness. I'm sure I'm not the only one with the bug where it stays on, which wouldn't bother me so much if it wasn't so bright!

Cheers
[Galaxy Tab S Original Android Development] UpInTheAir:
I don't have any bug using a clean official rooted T705XXU1BOE6 (no Xposed, nothing). In stock ROM, this can be changed in settings > device > advanced > touch key light duration > ...................

Otherwise, you'll have to please post your full details including exact method to reproduce your bug. Please refer to Post #3 for guidance
[Galaxy Tab S Original Android Development] maxq1:
wanam xposed update now officially supports DVFS en-/dis-abling. great times!
[Galaxy Tab S Original Android Development] UpInTheAir:
I have not checked yet to see if wanams xposed and module both work on odex firmware. I only test things close to 100% stock as I can get to stability and trouble-shooting purposes.
[Galaxy Tab S Original Android Development] maxq1:
the f2fs discussion got lost on me but here's hoping you'd consider adding f2fs support in future releases, UITA. regardless, thank you once again for sharing your kernel!
[Galaxy Tab S Original Android Development] UpInTheAir:
GAME : spot the difference
[Galaxy Tab S Original Android Development] UpInTheAir:
Actually there was very little discussion on the subject.... As I said, I use same source to compile all kernel variants. That's it !

I actually uploaded the "clean" T805 kernel source to my github for him, but not a word of thanks anywhere......

Already built a kernel(s) for T705 ... will be updated tonight :)
[Galaxy Tab S Original Android Development] maxq1:
^ mega thanks, man! can't wait for t700
[Galaxy Tab S Original Android Development] UpInTheAir:
v1.3 released

v1.3 update release for all supported devices

READ Posts #1-3 and especially Post #3 for confirmed supported firmware base !!

Updated Installation Instructions & Requirements Sections (F2FS support - data & cache partition)

Don't forget to force stop & wipe Synapse data before flashing and backup your data to extSdCard

before

converting data partition !!

There are two kernel choices in AROMA because I never managed (so far) to get the device to boot properly with a single modified ramdisk to support both ext4 and F2FS. It somehow kept converting the cache back to ext4 ............

The UMS is absent because I just can't get it to switch back to MTP consistently. I event got the MTP application corrupted a few times..........

Have fun ;)

Cheers :)

UITA
[Galaxy Tab S Original Android Development] dknk99:
V 1.3 confirmed working on:

SM-T700

T700XXU1B0E3

ext4 fs
[Galaxy Tab S Original Android Development] freaksamael:
V1.3 is a good one (dot three :) ) ! Flawless on

SM-T805 (T805XXU1BOE3)

ext4 fs

THANK YOU!
[Galaxy Tab S Original Android Development] madweegie:
Thanks for this will test at work overnight
[Galaxy Tab S Original Android Development] maris__:
I can confirm, v1.3 ext4 is running flawlessly, quick, and smooth on my SM-T705 (T705XXU1BOE6). Thank you very much!

Best, maris
[Galaxy Tab S Original Android Development] MohamedN:
Had random freezes with v1.2 when waking up the device. Default settings. Stock rooted T705XXU1BOE6.

No issues with v1.3 so far. Thanks for the update

Sent from my SM-T705
[Galaxy Tab S Original Android Development] Motawa88:
is there a version for KK?
[Galaxy Tab S Original Android Development] UpInTheAir:
Not concerned with random anything if you (anyone) has changed any of your voltages or frequencies from their defaults.

I have also have E6 (clean - no xposed or anything) and tested the last 2-3 weeks with no issues on wake. Without following proper procedure stated in Post #3, any post of a bug is treated as spam.....

Don't forget you need to reboot if you have manually disabled the hotplugging.

What does the thread title and requirements section state?

Cheers. Not really many changes between 1.2 and 1.3 for ext4 in its default state.

Interesting since this is XDA development that no one has reported on f2fs ..... ( edit: obviously F2FS works for me on T705XXU1BOE6 )
[Galaxy Tab S Original Android Development] dknk99:
V 1.3 using F2FS confirmed working on:

SM-T700

T700XXU1B0E3

F2FS on data and cache partitions
[Galaxy Tab S Original Android Development] MohamedN:
What part of (default settings) you didn't get.

I even cleared data for synapse and flashed the kernel again..

Sent from my GT-I9505G
[Galaxy Tab S Original Android Development] UpInTheAir:
Many users don't clear synapse data and just flash over top >>> wrong "defaults" applied. ... Restoring backup settings of older kernel release is a big no no too.

As far as flashing v1.3 over v1.2 would have done absolutely nothing for your stability issues. You say it has, but no, there is nothing changed in SkyHigh-ext4 source or ramdisk that affect

default values

.

What i don't "get" is why you didn't bother to follow the thread rules in post #3 ? There are no exceptions ;) How would anyone know what exactly you have done and how your device it set up? Answer = we don't know, but must get better readings minds, because I sUc* at it ;) I'm sure you get my point ?

Anyway, glad you're enjoying the latest release .Best of luck with v1.3+ :)
[Galaxy Tab S Original Android Development] UpInTheAir:
universal ext4/f2fs kernel

Next kernel release (whenever that is) will be a single "universal" kernel (ext4 & F2FS support in one boot.img )

Found a simple way, did actually think of it, but didn't bother to test before releasing v1.3 ........ :cyclops: Ha, :laugh: Never mind. Anyway, makes any future release much easier having to deal with less.
[Galaxy Tab S Original Android Development] :
You better follow instructions of upintheair of install.. I didn't and rom didn't boot to launcher.. No really a problem just lost some time to reinstall rom and xposed (without loose anything), then follow the instructions (wipe data of Synapse) install the new kernel

and everything is ok.

Will we see any improvement if we install f2fs version?
[Galaxy Tab S Original Android Development] UpInTheAir:
I haven't really "quantified" any improvement because playing around with other things. Various tests of f2fs vs ext4 say there is. Old sources may say f2fs is potentially unstable and potential data loss (being experimental - arse covering), but those are from a couple years back. Samsung have undoubtedly improved it a great deal since.
[Galaxy Tab S Original Android Development] citytrader:
On my T800 tried to install v1.3 and my TAB does not boot, it does not appear the central small SAMSUNG Logo, I'm on Ironrom v2.2, with Ironkernel and yTab kernel works fine, partition is EXT4