So I purchased the Franco Kernel Updater and am setting the max cpu frequency to 1000 Mhz (and setting it to save on boot) but it just won't stick, always reverting back to 1300 Mhz once stressed. Tried switching governor from interactive to ondemand, and deadline to noop but to no avail.
I've also tried Trickster mod but it's still not saving the max frequency either Strangely, setting minimum frequencies (other than 100 Mhz) seem to stick...anyone know why?
I'm running a N7 3G 4.2.1, with Franco kernel r38 and Paranoid 2.99 beta 9.5 rom
Grab the powerhal fix from here, that will sort your CPU issues
http://imoseyon.host4droid.com/grouper/powerhal42-lk-nofreq.zip
Sent from my Nexus 7 using Tapatalk HD
Thanks, I'll give it a shot
EDIT: After flashing, rebooted but did not seem to work. Still reverts to 1300 mhz. Tried rebooting a few more times, tried a different powerhal fix (by motley), updated busybox and superSU, reinstalled Franco Kernel Updater even. Any other options?
Just tried it here and restarted. Franco's app and tricksterMOD are both showing 1000 max. (Trickster showed the cpu cycled to 1200 for a sec when it opened but then it went back to 1000).
You said you tried reinstalling the apps but did you try reflashing the kernel? IDK.
ETA: in Franco's app it shows max CPU @ 1300 but when you click on it to set it 1000 is still selected.
I had that problem with changing GPU speed.
Try cleaning data of that app or reflashing kernel, it seems to be r38 bug
I tried what you guys suggested, clearing the data off the app, and also reflashing the kernel but it's still not sticking.
I rolled back to franco's kernel r37, to see if it was just an issue with the latest version but same story. I'm completely stumped
Could it be the Paranoid rom interfering with the kernel? Or is the kernel's latest version r38 not compatible with the Powerhal fix (since it was originally meant for lean kernel?)
The powerhal fix is not kernel based, rather it is os based so you shouldn't have any issues there with compatibility as such.
I have not used Franco kernel or the updater for a bit, so all I can suggest is setting the frequencies in trickster then going to settings and enabling 'set on boot' option to see if that works.
Sent from my Nexus 7 using Tapatalk HD
Yea I did try Trickster mod but it's the same. So I guess Ive thrown in the towel and will just have to stick to the full frequency range and undervolt across the board. Thanks anyway for the help guys.
Related
Hi everyone,
I just have a little question.
It seems that when installing Fugumod kernel, users (including me) start to experience some lags on some (unknown to me) circumstances. These lags are easily solved by setting the min frequency to 166 MHz (I do that with pimp my cpu). My question is : Is that behaviour different than with the stock kernel ? I mean what is the min frequency on the stock kernel ? 83 MHz like the fugumod kernel ? Setting 166MHz as min frequency is a patch or is it just putting back the same value as the stock kernel ?
I known that I could easily test it by myself just by putting back a stock kernel over my fugumod kernel, but I already converted all three FS to ext2/ext4.
And btw, i like my Fugumod kernel so thanks to Sebastien and the others for their work.
Fred.
fred.lefranc said:
Hi everyone,
I just have a little question.
It seems that when installing Fugumod kernel, users (including me) start to experience some lags on some (unknown to me) circumstances. These lags are easily solved by setting the min frequency to 166 MHz (I do that with pimp my cpu). My question is : Is that behaviour different than with the stock kernel ? I mean what is the min frequency on the stock kernel ? 83 MHz like the fugumod kernel ? Setting 166MHz as min frequency is a patch or is it just putting back the same value as the stock kernel ?
I known that I could easily test it by myself just by putting back a stock kernel over my fugumod kernel, but I already converted all three FS to ext2/ext4.
And btw, i like my Fugumod kernel so thanks to Sebastien and the others for their work.
Fred.
Click to expand...
Click to collapse
yes the default freq for the CPU are 667-83 and if want to use THE DEFAULT freq than flash a non OC version of FUGUMOD
pator5 said:
yes the default freq for the CPU are 667-83 and if want to use THE DEFAULT freq than flash a non OC version of FUGUMOD
Click to expand...
Click to collapse
Thanks, but that was not my question ;-)
I simply want to known what is the behavior of a stock kernel regarding cpu freq. Is the min frequency on a stock kernel also 83 MHz or something else ?
Fred.
I think the main problem is the governor, or wrongly chosen governor that keeps the cpu stuck too low
fred.lefranc said:
Thanks, but that was not my question ;-)
I simply want to known what is the behavior of a stock kernel regarding cpu freq. Is the min frequency on a stock kernel also 83 MHz or something else ?
Fred.
Click to expand...
Click to collapse
yes i think i've answer that 83 is the min freqflash a stock kernel and check with Set Cpu
pator5 said:
yes i think i've answer that 83 is the min freqflash a stock kernel and check with Set Cpu
Click to expand...
Click to collapse
My mistake, as you talked about fugumod OC, I though you were referring default freq range for FuguMod instead of the stock one.
I think the main problem is the governor, or wrongly chosen governor that keeps the cpu stuck too low
Click to expand...
Click to collapse
Thanks, but it lead to other questions ;-)
What is the default governor of a stock kernel ?
As I am using FuguMod 2.4 800, and PimpMyCpu tells me that there's no governor, is it safe to assume that it's the same governor on my FuguMod version and on the stock kernel. If so, why lags on Fugumod?
And finally, on Fugumod kernel what would be the best governor. My aim is more battery conservation than pure performance, yet these lags @83MHz are extremely annoying.
Thanks,
Fred.
well on my i phone i also prefer to use the conservative governor but when it comes to play heavy games i change the governor to performance.
for saving battery make a screen off profile with max frequency 166 or just a bit more that that...
it saved a lot of my battery...
Hi All
Ive noticed that my N7 cpu setting keep resetting when it sleeps on Antutu CPU master ??
I know this is the Kernel issue but is there a way to resolve this as im running at 1.8 and its smooth and fast but keeps resetting.
Paul
vphotographic said:
Hi All
Ive noticed that my N7 cpu setting keep resetting when it sleeps on Antutu CPU master ??
I know this is the Kernel issue but is there a way to resolve this as im running at 1.8 and its smooth and fast but keeps resetting.
Paul
Click to expand...
Click to collapse
its a rom issue. your rom is "broken" and is missing the powerhal fix. there is a flashable floating around the n7 forums for it. there are also a few cpu control apps that include the fix, including the trinity kernel toolbox app.
edit.. heres the flashable powerHal fix from motley here
As the title says, I'm looking to overclock after I just flashed to CM 10 after having CM7. CM7 had this built into the CyanogenMod settings, however, it doesn't seem to be there in CM10. After looking around I guess it was disabled due to the kernel that CM uses. Does anyone have a kernel that they can recommend for CM 10 or other ways to overclock? (And yes, I heard SetCPU doesn't have any affect)
Thanks in advance.
Texas Spectre said:
Does anyone have a kernel that they can recommend for CM 10 or other ways to overclock?
Click to expand...
Click to collapse
The stock CM 10 kernel for the Nook Color can overclock up to 1100 MHz. You need to enable developer settings by going to Settings ยป About tablet and tap 7 times on the Build number label. The the Performance section will appear in the settings. You can configure the CPU speed from there. There is a test kernel that was posted to the CM10.2 development thread that can overclock to 1200 MHz, that you can flash from recovery; note that some people reported the Nook to be a bit unstable, and others reported it to work fine. YMMV.
Thanks for the tip. I did not know about the tap 7 times thing but that would make it easier to do than installing a new kernel. I may try it later on, though. I know the Nook hardware isn't very capable but anything helps.
Hi guys,
I have old Nexus 7 32 GB WIFI, with Tegra 3 CPU.
Here are the condition :
- JB 4.2.2
- rooted
- Stock ROM
- Franco Kernel 3.1
- Stock Recovery
There are two strange thing, I found :
1) It seems that my Nexus 7 don't have all CPU freq, for example, there is no 1200MHz freq
2) How low can it be under volt? take a look at the attachment, I UV -400mV, it is stable, but can it UV really low?
Flash latest kernel and cehck the kernel thread for possible problems/solutions.
Franco kernel have different cpu frequencies then other kernels.
It doesn't make sense to have every frequency increment. UV has been broken in Franco kernel for some time now.
Also, you didn't specify which version you are on.
Sent from my Nexus 4 using XDA Premium 4 mobile app
Thanks for all your reply guys,
I think it is a kernel problem that doesn't work with UV, forgot the version, cause now hase changed to MKernel, seem UV working correctly.
I'm on stock but rooted, wanna underclock to try to save battery... thanks!
Why not just lower the max frequency? Can be done with any of a bunch of kernel apps.
carlz28 said:
Why not just lower the max frequency? Can be done with any of a bunch of kernel apps.
Click to expand...
Click to collapse
That's what I am trying to do, I thought it needs kernel support, no? I used to use Trickster Mod on N5...
Not sure how it works on Lollipop, but previously all you needed was root. Then use a kernel app that allows you to set min and max frequencies. Undervolting 'may' require a kernel that supports it.
Under clocking below stock kernel min. frequency would require a different kernel of course.