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pikachu01

Senior Member
Feb 2, 2011
7,314
4,482
Penang
Still getting the slow down. When you're encountering the slow down, you can't do an ADB.

The slowdown will stop occurring after a few minutes if you just leave your phone alone.

Logcat doesn't show anything unusual. kmsg also doesn't show anything unusual.
 
Last edited:

gokhanmoral

Retired Senior Recognized Developer
Mar 16, 2006
3,744
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Ankara
www.isyam.bilkent.edu.tr
I'll try Force GPU rendering and report back.

I'm using stock voltages and no overclocking (back to 267MHz).

actually the voltages are less than samsung stock when you leave them as default.
I was using 66MHz as the first step on beta4 and I raised it to 108MHz, but left the voltage at 900mV. most of the phones have [email protected] as samsung's default and some of them may not handle [email protected] I will increase the voltage of the first step in the next release and I'll leave it to users to undervolt by 50mV.
samsung stock values (2-step) are [email protected] and [email protected] for most of the phones (those may change depending on your asv value but then you'll see the respective voltage values after resetting stweaks settings).
 

pikachu01

Senior Member
Feb 2, 2011
7,314
4,482
Penang
actually the voltages are less than samsung stock when you leave them as default.
I was using 66MHz as the first step on beta4 and I raised it to 108MHz, but left the voltage at 900mV. most of the phones have [email protected] as samsung's default and some of them may not handle [email protected] I will increase the voltage of the first step in the next release and I'll leave it to users to undervolt by 50mV.
samsung stock values (2-step) are [email protected] and [email protected] for most of the phones (those may change depending on your asv value but then you'll see the respective voltage values after resetting stweaks settings).

Let me reset back to 160/267MHz and 950/1000mV and report back if there're any problems. Thanks GM.
 

SoLoR1

Senior Member
May 14, 2012
207
116
I can run GPU at 66/108/160/267/400 at 800/850/900/1000/1100 and it "seems" stable... and CPU at 1.4ghz with UV -50, however this might caused that system crawl i experienced once or twice... currently i only have -25 for test :) and yes i know i should probably UV each frequency on its own but before there where 16 steps and i couldnt be bothered... maybe now ill test every frequency to see how low i can get....

However setting GPU to 400mhz does not seems to improve FPS in 3d antutu benchmark... i have 15-19 FPS on 267 and on 400 which is weird... but i did notice that VPLL indeed needs more voltages to run stable, got crashes with VPLL on, on above frequencies/voltages during graphic tests...
 
Last edited:

Unexist6969

Senior Member
Sep 26, 2012
1,588
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>> 070 <<
www.youtube.com
I can run GPU at 66/108/160/267/400 at 800/850/900/1000/1100 and it "seems" stable... and CPU at 1.4ghz with UV -50, however this might caused that system crawl i experienced once or twice... currently i only have -25 for test :) and yes i know i should probably UV each frequency on its own but before there where 16 steps and i couldnt be bothered... maybe now ill test every frequency to see how low i can get....

However setting GPU to 400mhz does not seems to improve FPS in 3d antutu benchmark... i have 15-19 FPS on 267 and on 400 which is weird... but i did notice that VPLL indeed needs more voltages to run stable, got crashes with VPLL on, on above frequencies/voltages during graphic tests...

Was testing VPLL mode aswell, in "epic citadel" it was completely stable with 520mhz. Normally in nenamark2 or antutu it freeze's immediately, so these tests seems to be "buggy" with VPLL on.

Was testing on cm10.1(mcm)
108-200-330-440-520mhz,
950-1050-1150-1250-1300mv,
80/20 - 80/30 - 85/40 - 90/50.

Btw is the default sampling rate of ondemand 30k? That might be unstable if u uv, but it's smooth with default settings=p

Sent from my GT-I9100 using xda app-developers app
 
Last edited:

gevans35

Senior Member
Dec 23, 2006
164
23
Media Scanner observations.

I posted this in the NeatROM thread, but am copying it here as it may be of interest to GM.

Some observations on the media scanner problems that may help someone cleverer than I.

1. Using NeatROM XXMS1 Lite + PhilZ kernel with XWLSD Media scanner fix zip installed. No excessive scanning and Media works unless rebooting from CWM recovery when there is no media found until normal reboot.

2. Using NeatROM XXMS1 Lite + Siyah 6 beta 5 with XWLSD Media scanner fix zip installed. No media found unless Rescan Media Root is installed and manually opened and closed after every boot.

Odd, isn't it?
 

pilgrim011

Senior Member
May 3, 2008
1,639
456
Belgrade
www.tvojsajt.com
One thing I have noticed - if you change voltage for the 4rd (267 MHz) GPU step to 1000 mV (stock Samsung value), but leave the 5th step (which should be unused because VPLL mode is off) on Siyah default value 330 [email protected] mV, GPU will max @267 MHz, but it will be using 1100 mV. I have noticed this while using Mali status app and Nenamark2. Even performed a reboot to recovery, reseted Stweaks from there, then again adjusted Stweaks and performed second test. So, the only way to use the Samsung default 267 [email protected] mV is to change the value of the 5th (unused) step to 1000 MHz. Could someone confirm this? Or confirm that I am a dumbass who doesn't know what he is talking about (which is not far from the truth:D)?

P.S. Using LS8 based Alliance ROM.

One more thing: is anyone noticing that Stweaks aren't always reseting values if you reset it from app? I've had that today few times, solved by reseting from recovery.
 
Last edited:

THE RED BLUR

Senior Member
Mar 7, 2012
6,995
21,770
LONDON

Thanks that was fast I mean road runner fast :D;):thumbup:

SIGNATURE


PHONE : SGSII
Sent via: Tapatalk
Main ROM: AllianceROM LSD beta
KERNEL : Siyah 6.0b5
(DEFAULT PROFILE AND SETTINGS )
MODEM : LS8
BATTERY : Stock 1650mAh
EXTERNAL Sdcard : Samsung Class 10 32gb
LAUNCHER : Apex
Root Manager : SuperSU 1.04

THE CAVE = My Guides list to install NeatRom and other ROMS and kernels on LSJ and LS8 + tools to have a bug free rom and kernel + how to back up and RESTORE ROM OM FULLY = http://forum.xda-developers.com/showthread.php?p=35923600

1.Current list of kernels on LSJ and pros and cons

http://forum.xda-developers.com/showthread.php?p=36698607


2.Rom Nuke / Wipe scripts

http://forum.xda-developers.com/showthread.php?p=36742265

3. GS2KERNELWIPE script

http://forum.xda-developers.com/showthread.php?p=36742198

4.Fast Dormancy :

http://forum.xda-developers.com/showthread.php?p=36396636

5. How to install full wipe with rom nuke on LSJ

http://forum.xda-developers.com/showthread.php?p=36655790

 

Many40

Senior Member
Nov 25, 2009
5,598
17,881
Thanks that was fast I mean road runner fast :D;):thumbup:

SIGNATURE


PHONE : SGSII
Sent via: Tapatalk
Main ROM: AllianceROM LSD beta
KERNEL : Siyah 6.0b5
(DEFAULT PROFILE AND SETTINGS )
MODEM : LS8
BATTERY : Stock 1650mAh
EXTERNAL Sdcard : Samsung Class 10 32gb
LAUNCHER : Apex
Root Manager : SuperSU 1.04

THE CAVE = My Guides list to install NeatRom and other ROMS and kernels on LSJ and LS8 + tools to have a bug free rom and kernel + how to back up and RESTORE ROM OM FULLY = http://forum.xda-developers.com/showthread.php?p=35923600

1.Current list of kernels on LSJ and pros and cons

http://forum.xda-developers.com/showthread.php?p=36698607


2.Rom Nuke / Wipe scripts

http://forum.xda-developers.com/showthread.php?p=36742265

3. GS2KERNELWIPE script

http://forum.xda-developers.com/showthread.php?p=36742198

4.Fast Dormancy :

http://forum.xda-developers.com/showthread.php?p=36396636

5. How to install full wipe with rom nuke on LSJ

http://forum.xda-developers.com/showthread.php?p=36655790


The guy must have been on LSD (rom) ;)
 

Unexist6969

Senior Member
Sep 26, 2012
1,588
1,177
27
>> 070 <<
www.youtube.com
One thing I have noticed - if you change voltage for the 4rd (267 MHz) GPU step to 1000 mV (stock Samsung value), but leave the 5th step (which should be unused because VPLL mode is off) on Siyah default value 330 [email protected] mV, GPU will max @267 MHz, but it will be using 1100 mV. I have noticed this while using Mali status app and Nenamark2. Even performed a reboot to recovery, reseted Stweaks from there, then again adjusted Stweaks and performed second test. So, the only way to use the Samsung default 267 [email protected] mV is to change the value of the 5th (unused) step to 1000 MHz. Could someone confirm this? Or confirm that I am a dumbass who doesn't know what he is talking about (which is not far from the truth:D)?

P.S. Using LS8 based Alliance ROM.

One more thing: is anyone noticing that Stweaks aren't always reseting values if you reset it from app? I've had that today few times, solved by reseting from recovery.

Yes can confirm this too, even when u set last up thresh. to 100%. I haven't tested if VPLL mode stays on boot(it doesn't with dorimanx),

perhaps GM could make an option(if it's possible) to use siyah4's gpu interface with 4 gpu step-count, clocks and voltages, and VPLL permanently off, and an option to use 5 gpu step-count with VPLL always on. (or something like that, it's just an idea.) some users say that having 5 gpu steps gave worse gpu performance(wether vpll is on or off), then we can test it properly :p

Remember it's just an idea, it's great to have GM developing for the S2, and I don't demand anything from him, this just a suggestion and observation=p
 

Rawi666

Senior Member
Sep 11, 2011
241
214
Wifi

I've noticed that sometimes wifi connection becomes unusable.
I can see wifi/3g icons on status bar become gray and net from wifi doesn't work.

I suspect that Samsung released broken wifi drivers (nothing unusual) once again.

@Gokhan
How can I provide you logs for such situation?
When I notice that wifi icons are gray kmsg doesn't contain any useful information because it's usually too late and when I reenable wifi everything works and no signs of any errors/failures/suspicious entries in kmsg.

Is there any other place where I should check for such strange wifi behaviour?

I'm on CM10.1 but the same happens on XWLSD.
 
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Many40

Senior Member
Nov 25, 2009
5,598
17,881
I've noticed that sometimes wifi connection becomes unusable.
I can see wifi/3g icons on status bar become gray and net from wifi doesn't work.

I suspect that Samsung released broken wifi drivers (nothing unusual) once again.

@Gokhan
How can I provide you logs for such situation?
When I notice that wifi icons are gray kmsg doesn't contain any useful information because it's usually too late and when I reenable wifi everything works and no signs of any errors/failures/suspicious entries in kmsg.

Is there any other place where I should check for such strange wifi behaviour?

I'm on CM10.1 but the same happens on XWLSD.

You can try dmesg (if it's hardware related issue) and/or logcat (if system/app related issue). This link may help.
 

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    please leave non-dev related posts here: http://forum.xda-developers.com/showthread.php?t=1658647

    siyahkernel-ics-wide1.png

    Features:
    • based on JB sources
    • DISABLED CAP_ERASE (No superbrick bug)
    • All-in-1kernel because it supports CM9, CM10, Samsung, MIUI and Boot-to-Gecko (B2G) ROMs with a single kernel image. (no Sense4all support)
    • Dual booting support for all supported ROM types. See droidphile's post for Dual Booting FAQ
    • Custom CWM touch recovery with swipe gestures and double-tap selection
    • 6-steps CPU freq
    • 5-step GPU frequency levels. VPLL Mode to have additional frequency steps. defaults frequencies: 66-108-166-267-330.
    • Auto-root. You can also remove root via STweaks app and install it without rebooting your phone again. Auto-root can be disabled as well.
    • CPU Overclock/Undervolt support (we have two interfaces for that. both of them are defacto standard)
    • Tweakable vitalij's value (set to 5 as default)
    • Adjustable touchpad led brightness
    • Fixed fuelalert wakelocks
    • You can completely disable android logger using STweaks app
    • Faster charging for misc and USB modes. There are 3 modes (AC, Misc, USB) and normally last two of them support only slow charging. You can have charging speed of AC by increasing it (especially user while charging in car or using USB port)
    • Cpu governor optimizations
    • Gpu voltage, clock and stepcount interfaces (GPU Overclock/Undervolt)
    • Screen brightness curve settings with original panel gamma values. panel values unchanged, so you will get stock colors and will be able to use supercurio's voodoo display app when it is released. brightness modification will only change auto-brightness response.
    • BLN support both for Samsung and CM ROMs (you can use STweaks, Nstools or BLNControl app from the market to enable it)
    • Breathing or Blinking effect for BLN. (Make sure you don't enable blinking in any other BLN app) Use STweaks to select one of them.
    • Better touch sensitivity
    • Available CPU Governors: Pegasusq (default), Ondemand, Lulzactive, SmartassV2, Interactive and Conservative, Performance, Userspace, Powersave
    • CIFS as module
    • Available I/O schedulers: CFQ (default), noop, Deadline, SIO, V(R)
    • J4FS as module
    • ARM topology support (SCHED_MC)
    • Automatic EFS Backup
    • Lots of I/O tweaks and filesystem optimizations via some parts of thunderbolt scripts.
    • USB Mass Storage mode is working in CWM Touch Recovery and you can mount both internal and external sdcard as a disk drive
    • NTFS automounting for USB sticks. When you plug in an NTFS formatted USB flash it will be automatically mounted to /mnt/ntfs folder.
    • USB mouse and keyboard support
    • built-in profile support with default, battery and performance presets (you can change them in CWM Recovery). Even using everything default will save you a lot of battery juice.
    • Eargasm for headphone amplification (in STweaks) as free Voodoo Louder replacement
    • Almost everything is configurable such as scheduler features, hotplug thresholds, GPU frequencies, voltages, arm topology modes... and they are configurable via simple and free STweaks app which is embedded in the kernel and soon in Google Play & Opensource
    • Adjustable mDNIe settings
    • optional sharpness tweaks from hardcore
    • mDNIe negative effect toggle with home button (press it four times)
    • Touch gesture support by Tungstwenty. (http://forum.xda-developers.com/showthread.php?t=1831254)
    • BLNWW (BLN Without Wakelock)
    • Slide2Wake (originally by Fluxi)

    More to come...


    Known Problems:
    • no known problems yet

    Thanks To:

    • Chainfire, Codeworkx, Arighi, Tegrak, Vitalij, Entropy512, Netarchy, koush, Creams, sk8erwitskil, hardcore, Pikachu, myfluxi, Tungstwenty
    • This part will be expanded. most of the patches I applied are coded by someone else. please remind me if I forget to give credits to anybody..

    IRC support and chat:
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    Channel: #siyah-kernel
    web client: http://siyah.twosx.net/ (thanks to omniwolf)
    Changelog:

    See http://www.gokhanmoral.com/ for changelog.

    You can find the sources at http://github.com/gokhanmoral/siyahkernel3
    and initramfs at http://github.com/gokhanmoral/initramfs3

    Todo:
    these are my future plans and some of them are dreams only...
    • apply chargecurrent modifications even if the cable is connected on boot
    • add optional teamwin recovery
    • make dual-boot timeout configurable
    • implement BFN (BackFlashNotification)
    • scheduling for BLN
    • organize recovery menu items
    • higher polling rate for light sensor
    • remap mouse right button to back button
    • exfat support
    • fix blnww battery drain issue (may not be possible)
    • implement dual-booting with GB+ICS ROMs
    • faster switch between first and second ROMs without needing to reboot if possible.
    ...

    298
    troubleshooting

    siyahkernel-ics-wide1.png

    READ THESE FIRST

    • Never report any bugs to CM9/CM10 threads if you use it together with SiyahKernel
    • Do not ask questions to me directly. This is a common thread, not my personal inbox. Ask your questions in the thread and do not target them to anyone.
    • Do not expect answers to all your questions. There are some questions which nobody knows the answer of.
    • Do not forget that this is a development thread. There is another thread in general section for those who wants to discuss battery life and chats. If your post does not include a feature request, bug report or suggestion it should be posted to the other thread.
    • No ETA for new version. Even if I sometimes talk about release dates those may change and they change for some good reason or because of my real-life obligations.
    • Make use of "Search this Thread -> Advanced Search"
    • Never ever discuss anything deep-sleep related in this thread. I do not make modifications to prevent sleep and 99% of deep sleep problems are application/ROM related. discuss it in general section. I do not want any positive ("this kernel sleeps like a baby") or negative ("There is a big problem with deep sleep. Please fix it") messages in my development thread.
    • If you do not provide details about your configuration and settings nobody can help you or nobody will care about your problem/bug report. The problems without details (ROM, settings, preferably the version that the problem first happened or the one that you don't experience the problem) will be ignored.
    • Never ever report any SOD issues if you are undervolting/overclocking and make sure you attach last_kmsg log. If you don't know what it is report the problem to the other thread because one more post without any useful information on dev thread will help noone including yourself.


    FAQ:

    Q: I am having some random lockups with some apps
    A: try removing root by using STweaks app and restart.

    Q: What is the difference between STweaks and ExTweaks?
    A: Both have similar functionality. ExTweak is Xan's implementation of the UCI interface (which is designed by Xan and me with the helps of AndreiLux and implemented in the kernel as open scripts by me) and STweaks is mine. I was hoping Xan would release the sources of ExTweaks (without profile support) but he changed his mind and I decided to open STweaks. Soon they will have almost identical functionality, so you can use whichever you like.

    Q: Does this kernel work on XXXXXX-ROM?
    A: If the ROM is based on Samsung Stock ICS Rom LPQ or newer, it should. Otherwise, search the thread... If you cannot find any reference to that ROM, try the kernel. You won't lose anything by trying this kernel. Worst case scenario is to reflash your previous kernel or ROM. You can backup your previous kernel with Hellcat's k-tool from the market.

    Q: Where is CM9, MIUI or Samsung ROM versions?
    A: There is only one version. Both ROMs are supported with a single kernel image.

    Q: What is the best settings?
    A: It is the one you try yourself and like.

    Q: I have just lost 20-30% battery by just rebooting/flashing the kernel. Is it a bug?
    A: No. It happens because of our fuel gauge chip which doesn't require calibration goes crazy sometimes. It is not related with kernel or ROM. Just reset fuel gauge chip using STweaks app (or remove the battery and wait 3 minutes) and then charge your phone.

    Q: BLN doesn't work.
    A: you need to enable it in stweaks or BLN app. if you have more than one app to configure bln make sure all of them use the same settings.

    Q: BLN works in test mode but it doesn't work otherwise.
    A: if test mode works you should blame the apps. Stock messaging and email apps may not support BLN and in some other applications you may need to enable notifications. Either find another application or change your ROM.

    Q: Can I use breathing effect without using BLN?
    A: for now, breathing effect only works in BLN. There is no way of using it otherwise.

    Q: I need to disable and re-enable BLN in stweaks to get it working again. What is the problem?
    A: You may have another BLN related application (BLNapp, nstools, or a script) which disables BLN after stweaks apply the setting at early boot stage. you have to either uninstall that app or enable BLN in that app as well.

    150
    closing the thread once again...

    I don't want to piss the mods again because this thread attracts too many people.
    most of them misinterpret the "this is a development thread" statement and use the thread for their self-development purposes.

    There are very few people who give useful feedback and suggestions and I talk to them over gtalk, email or PMs anyway.

    greetings :)
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