Database Users

CM7 Kernel Recommendations?

Hello all!
Just upgraded my wife from the MyTouch 3G Slide to the G2 as she has to have a keyboard and we were on our 5th replacement Slide. So, as she is not the geek that I am, she will not be constantly flashing new ROMs and such. However, I am going to at least install the latest CM and I am looking for kernel suggestions. I already have root, s-off, new hboot, and all that, I'm just waiting for CM7 to finish downloading.
I started using Android with the G1 and constantly updating Radios, as well as ROMs and I currently use a Samsung Vibrant running a TeamWhiskey ROM. It's stable as anything, I like the theme, and CM7 still has some broken stuff on the Vibrant. I'm glad to see that Eugene recently picked up a G2 as he made some bad ass kernels and ROMs for the Vibrant.
So, let's here those kernel recommendations and why you recommend them.
Thanks!

Well am currently using mexdroidmod and their kernel is pretty awesome because its fast and stable. My best advice is to test the diffrent kernel and read through the tread, see what people say about it. All the kernels I have tried are all awesome so you should try them
Sent from my HTC Vision using XDA Premium App

pershoot's kernel. great batt life and OCing

Umaro's kernel has been rock solid for me and has tons of features as well. You can OC all the way to 1.9 Ghz if you so please and it has smartass.

well considering your wife isn't much of a techie.. i say you should go with pershoots kernel because he's always releasing updates and i've never had a problem with any of them. the battery life is excellent if you use the right radio (.17 and .30 have been good to me), but you need to experiment with this though. the phone runs beautifully, just make sure you use superwipe+ to format/wipe so you don't end up with gps issues like many people have had, good luck!

I've run umaro, eugene, pershoot, flippy, pyro, etc etc... aaand I've decided that the provided kernel is pretty much good to go. yeah, there are some little trinkety things with a few of the above kernels that the standard CM7 kernel doesn't support... but honestly, they're worthless to a user who just wants to turn the phone on and have it work.
set her up with the stock kernel @ 245-1017 (I haven't found a reason yet to ditch the ondemand governor, it seems to work best with CM7) and a vanilla gingerbread launcher and she'll be blown away.. that's my $.02

Like said above, CM kernel is great. I've tried most or even all available kernels for CM and finaly decided to stick with original one. It's stable and supports OC (up to 1.5GHz) "out of box", so really, I see no single reason to use the other ones.
Sent from my HTC Vision using XDA App

AllWin said:
Like said above, CM kernel is great. I've tried most or even all available kernels for CM and finaly decided to stick with original one. It's stable and supports OC (up to 1.5GHz) "out of box", so really, I see no single reason to use the other ones.
Sent from my HTC Vision using XDA App
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I'm also thinking about changing the kernal, but only for smartass. Does smartass offer that much of an increase on battery life or anything else? Also, when you OC, do you use SetCPU or just CyanogenMod Settings?

slapshot30 said:
I'm also thinking about changing the kernal, but only for smartass. Does smartass offer that much of an increase on battery life or anything else? Also, when you OC, do you use SetCPU or just CyanogenMod Settings?
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not at all pooping on any of the guys who swear by smartass/other governors, but the change in battery life is almost unnoticable for me.. the change in performance however can be pretty apparent.
here's my problem with "battery saving" governors:
in order to save battery, these governors are supposed to be more intelligent about which frequencies they select once a task is called... well, that's all well and dandy, but the problem is that the majority of battery-hogging apps (ie streaming music/video, gaming, browsing for a long time, being on the phone, etc) are still going to be battery hogs with or without a fancy governor. the governor isn't capable of making an app that needs a lot of processing power run well at a lower frequency, it can only try to be more selective about which frequencies it uses in order to attempt to save battery life.
additionally, most people use their phones like this: phone is idle (ie screen off), and a call arrives. call ends, phone is back to idle. texting a few people, back to idle. playing a game for 15 minutes, back to idle.
is it really logical to assume that these short bursts of activity are going to benefit at all from a fancy shmancy governor? I doubt it.
I still swear by ondemand or interactive (both work well for me) thru built-in settings if possible (ie cyanogen performance settings). second choice would be setcpu with no profiles (unless you're overclocking heavily, then you should at least have a temp warning profile). at this point, screen-off profiles don't do a damn bit of good, because pretty much every kernel we have for the vision is going to scale down during inactivity.

[Q] Demonspeedmod

How does the demon kernel compare to cyanogens? pros and cons

personally i haven't really a preference for either
both are good and improve battery a fair bit
i tend to use demonspeed for sense ROMS and miui and cyanogen's or faux's for AOSP

DS kernel is slightly under-volted and is set to SMARTASS governor clocked at 900ish Max and 150ish min.
Stock cm is ONDEMAMD governor clocked at 1ghz Max and 200ish min.
I just stick with stock CM kernel because for one, it's one less thing to flash, and I honestly see no difference in batery life nor speed. Plus, I don't wanna mess with under-volting my CPU.
Hope this helped.
Sent from my HTC Glacier using xda premium

DS has a larger selection of governors and allows to overclock higher than the "stock" CM kernel. I had a number of problems though with DS v9 and 10 under CM 7.0.3:
camera no longer worked
video playback no longer worked (for YouTube as well as for locally stored video files)
so I am now using CM 7.1 and the kernel that comes with it.

I am running Royal Ginger 3.0 with demonspeed and I didnt know cm7stable was compatible with dmspd? Isnt it a 2.3.7 kernel?
http://Zanderthezillionaire.biz

xandermpls said:
I didnt know cm7stable was compatible with dmspd? Isnt it a 2.3.7 kernel?
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According to this post, the two should work together. I haven't tried it, though ...

Im running the hydrogenmod rom based off of 206 and its 2.3.7. Tdj's demonspeed v10 kernel works flawless.
Sent from my Hydrogen Powered Glacier using XDA App

i'm currently running demonspeed v10 on nightly build 213 and so far no problems
haven't noticed a major change in battery life though, either way before and after flashing it, my battery lasts long enough that when i unplug and leave for school at 7am (ish), my battery is at like 50% when i get home like 15 hours later, good stuff

SetCPU no longer underclocking at low usage?

I have moved from CM7 to Hombase 5.4, and found that setcpu no longer seems to do anything. on CM7 it worked as i had hoped, underclocking the phone when i was doing low intensity stuff like texting, and pushing it up to full power for videos etc. now it does nothing but tell me core temps, which are always high as its always running at 1Ghz.
Can anyone explain how to get it back to underclocking?
Many Thanks

Try a different kernel.
Sent from my CM860

ishamm said:
I have moved from CM7 to Hombase 5.4, and found that setcpu no longer seems to do anything. on CM7 it worked as i had hoped, underclocking the phone when i was doing low intensity stuff like texting, and pushing it up to full power for videos etc. now it does nothing but tell me core temps, which are always high as its always running at 1Ghz.
Can anyone explain how to get it back to underclocking?
Many Thanks
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This is a known issue with the OC faux kernel. I was running into the same problem with his enhanced stock kernel after using webtop. After reflashing the enhanced stock 0.2.0 it would still get stuck at max 1Ghz after using webtop, but a reboot would get the underclocking working again.
I only tried the webtop hack to see if I could get it working. I haven't gone back into it at all so I don't know if this is something that will reoccur. Although I will say that with my day to day use I have not run into any clocking issues since.

Thanks, is there a page somewhere which details which kernels do what and which would work with my rom?
Sent from my MB860 using xda premium

ishamm said:
Thanks, is there a page somewhere which details which kernels do what and which would work with my rom?
Sent from my MB860 using xda premium
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This is the page for faux's kernels. As far as details, start reading and searching through that thread as well as the threads for any ROMS you are using. 99% of the time people will either have the same problem (and possible fix), the other 1% of the time they will identify a bug (i.e. maxed out CPU).
Keep in mind faux does have different kernels for Froyo, GB, and CM7.

For some reason even if I move the slider from 1300my to 1000, when I touch the screen with at least 3 fingers for a few seconds it pegs out at 1300. I read our cpu's are daisy chained so to speak
so the 2nd core kicks in when needed. I tried cpu tuner and it gives the option to powersave and only use one core or if you choose performance it will allow Both cores. Just might be setcpu isn't designed fully for our dual core setup.

thanks for the link to kernels, but i cant find one for HomBase, or a Kernel only download on the homebase thread. i have the Version2, which has some blur, but only the 1.0Ghz clock kernel. where could i get the 1.3GHz download by itself, to see if that might help, as its the one CM7 had iirc
Thanks

ishamm said:
thanks for the link to kernels, but i cant find one for HomBase, or a Kernel only download on the homebase thread. i have the Version2, which has some blur, but only the 1.0Ghz clock kernel. where could i get the 1.3GHz download by itself, to see if that might help, as its the one CM7 had iirc
Thanks
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Get the 1.3 from the faux thread that I linked to. They're in the very first post...
CM7 is the only ROM that has its own custom faux kernel. For all other ROMS just match the kernel to the build the ROM is based off of (Froyo or GB). If you're using V.2 of Homebase then use the GB one.
Update: Also, there are other kernels out there. I was only using faux's as an example since you were using CM7 and Homebase.

thanks, ive now got the 1.3Ghz kernel installed successfuly, but it still seems like setcpu will not underclock. i dont know if its normal, but the "Scaling" option is greyed out, and i cant get access to the Advanced tab. is there something im doing wrong in setcpu itself?
thanks again

ishamm said:
thanks, ive now got the 1.3Ghz kernel installed successfuly, but it still seems like setcpu will not underclock. i dont know if its normal, but the "Scaling" option is greyed out, and i cant get access to the Advanced tab. is there something im doing wrong in setcpu itself?
thanks again
Click to expand...
Click to collapse
Lack of underclocking is a known issue with the latest OC kernel. I'm unclear whether it's actually a bug with the kernel or with setCPU not supporting dual core devices. But yeah, there's a problem with it right now. I'm on the stock enhanced, and other than the webtop issue I mentioned above, it works fine.
Scaling/advanced are not available, this is something that is determined by the kernel you are using not the app.

ok so if i understand you right i would be best off using the stock enhanced kernel (for now), as it will underclock fine?

ishamm said:
ok so if i understand you right i would be best off using the stock enhanced kernel (for now), as it will underclock fine?
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Click to collapse
It's working perfectly for me, except after webtop use (which I don't normally use).

I'm still having the same issues regardless of weather I choose power save or performance it will not underclock, and those are the only governors I get the option of :s
Sent from my MB860 using xda premium

Why do YOU Overclock (or refuse to) on the Atrix?

After the release of Clemsyn's 1.6 GHz Kernel for CM7 based ROMs last night, I immediately switched to it just to see.
But before that I was running Faux123 1.3 GHz.
I'm keeping the Clemsyn kernel for now, simply because I can. My phone can run it with little difficulty thus far and I have a profile to lower the max freq when the CPU gets to a certain temperature. I think I went with about 65 Celsisus.
Before I switched back to CM7 (or rather Neutrino) I was using Wet Dream. I OCed to 1.45 then in attempt to compensate for only half decent webtop performance.
But now I really only do it because I can. Whenever possible, my phone is on the lapdock since I like to HDMI mirror. Battery is not a concern since the lapdock charges the phone and I pretty much always keep the lapdock charger on hand in my bag.
I just thought it would be an interesting subject for the community to discuss as I'm sure it's something that a number of us haven't even thought of and I bet a good number of us fall into the because I can or bragging rights category.
Specific instances of problems OCing helped with in x app or y app might make someone else want to OC whereas someone who doesn't OC might persuade a user like myself to drop it for amazing battery ETC.
Sent from my MB860 using Tapatalk

Why I DO OC.
Right now I have my Atrix OC'ed at 1.45. I'm currently running Alien ROM Build #4.
The CPU has never gotten past ~55º C.
I also have 2 profiles set
1 for Screen off - 800 MHz max.
1 for Battery< 10% -216 MHz max.
This paired with Alien ROM and LP has left me with a buttery smooth experience.
Is the 1.6 OC kernel worth giving a shot? Or does it make the CPU run excessively hot?
EDIT: I didn't really address battery life. I don't notice a huge decrease in battery life, I'm a pretty heavy user- SMS, Web, Video streaming, Facebook, Twitter. Over all OC'ing is definitely worth it to me.

I like to keep mine overclocked because it seems snapier. I use faux 1.45 and its great. Ive noticed clem's likes to make my phone very hot when running video or games and has actually shut my phone down due to heat. If I run clems I like to drop the overclock with setcpu to around 1.3 so it doesnt shut down but seems to get way hotter than faux's. Anything over 1.5 is just going to cause damage to peoples phones and IMO it should not be used so lightly.

I'm OC'd to 1.45ghz I do it for performance and those random times I need to benchmark I want to try 1.5-6 but I can't seem to get them to boot with the ICS mod2 cm7 so till cm9 or neutrino ill just float about with what I have
Sent from my Atrix-4G, stock 2.3.4 (rooted)

No need for 1.6 IMO.
1.3 is plenty for the Atrix. Even Faux 1.0 is fine. Its a phone, not a PC.
Sent from my HTC Inspire 4G using XDA App

I dunno...my webtop configuration may want to take exception to that statement

troycarpenter said:
I dunno...my webtop configuration may want to take exception to that statement
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+ 1
Sent from my Atrix 4G using Tapatalk

i honestly haven't been able to really tell a difference between 1.0 and 1.3GHz in most of my applications. it definitely doesn't help with system slowdown due to live wallpapers, which is a disappointment.

troycarpenter said:
I dunno...my webtop configuration may want to take exception to that statement
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Click to collapse
Haha, I was in that boat before I switched to HDMI mirroring coupled with VNC or Splashtop (when applicable) from experience, I can tell why Webtop users want OC. You can turn your phone into such a useful computer, and then it falls flat on its face because the inner-workings aren't streamlined. The extra power DOES help in that situation.
But in my actual experience, I haven't seen many realworld benefits past 1.2.
Especially since 1.6 kept eventually shutting down on me after about an hour (assuming there is the same issue as in Clemsyn 1.5, setting your max to a lower frequency than 1.6 won't stick so my temperature profile wouldn't actually work)
My "because I can" mindset is going to leave me stuck on 1.45 though most likely. I keep it maxed at 1.2(or is it 1.1? I'm not using the kernel right now) and then have a profile to ramp it up to 1.45 when it's on the charger (aka my lapdock)
I don't think it is quite the same for Blur based ROMs, but on CM7 1.0 seems perfectly adequate for the Atrix. Even at it's stock speed, it is snappy.
Sent from my MB860 using Tapatalk

I dont overclock. I used to be at 1.3ghz, but I didnt see a big enough difference to keep it. At least on CM7, the Atrix is plenty fast on stock speed.

I overclock, but I wait for thoroughly tested kernels before doing so. Right now I'm with faux's v023r @ 1.3 Ghz. I'll try Clemsyn's after its second or third "redesign" or bugfix.

I stick to optimal battery life kernels rather than performance (faux 123 0.2.3 being the one I'm currently on and most likely will be for the foreseeable future)
Also I can't imagine performance possibly getting any quicker or running programs any faster than they already are on the atrix.

Honestly, I never understood why people oc their phone, especially the Atrix. I mean the phone is already fast being that it is 1Ghz dual core. Plus from what I have seen, the Atrix overheats like crazy with the stock frequency so why would you want to increase that even more, so it explodes? I use my phone to mostly play 3D games and I have never encountered any lag or low fps whenever I play games.

Atrix_Owner said:
Honestly, I never understood why people oc their phone, especially the Atrix. I mean the phone is already fast being that it is 1Ghz dual core. Plus from what I have seen, the Atrix overheats like crazy with the stock frequency so why would you want to increase that even more, so it explodes? I use my phone to mostly play 3D games and I have never encountered any lag or low fps whenever I play games.
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Quote for truth
The Atrix is plenty fast already. I can understand if you OC a HTC Magic, or a Hero; but there's no real need to do so on the Atrix.

Idk I see a difference on any launcher when I flip through pages and through apps. 1.3 or 1.45. But I def notice the difference in snappyness.
Sent from my MB860 using xda premium

95% of the time I overclock I do it for getting awesome benchmark scores that I can admire. 5% of the time I do it when playing 3D games like Fruit Ninja, It seems a lot smoother to me. But I hardly ever do it because it sucks the battery down so fast, so usually I'm at 1ghz. Also it's just kind of cool to see the the potential the phone has when overclocking.

i used faux's kernel to overclock to 1.3 for a few months but i didnt really see any difference except when i run quadrant or how my phone got hotter than stock when under load. another thing that annoyed me with faux's kernel was constantly losing widgets on reboot. i use two batteries so i reboot pretty often.

I used faux 23r 1.4GHz with setCPU profiles.
Profiles clamped speed to 1ghz at cpu temp of 50degc and 800mhz at 60degc.
Most noticeable difference was in k9 mail, indexing and searching were slightly improved.
I ran it so I would get a short boost if the cpu was cold.
Matthew
Sent from my MB860 using XDA App

Hey
On my old and feeble Hero I had to OC, if I wanted it to run fine, however I never felt the need to OC my Atrix. it has so much juice in it without OC, making it useless to squeeze the battery for the extra 0.2-0.5 GHz. Moreover, since we have no real ICS, our CPU runs freely and waste energy for nothing, so OC it will just make it run ever faster for nothing (In Hebrew there is a saying- running full throttle on neutral ).
I used to run Faux123 1.0Ghz kernel just to UV the device, but since I flashed weekly 6 I use the stock kernel, and it runs great, no overheating, and extremely stable (What cannot be said on UV kernels...)

The only time i oc is when using webtop, that extra speed makes a difference. The rest of the its running at 1ghz and seems plenty
Sent from my MB860 using xda premium

[Q] Creamed Glacier 7.1 overclock apps?

I ran the virtuous affinity rom for a few days and liked it. It allowed me to overclock my mt4g up to about 1.8ghz without any heat or crashing issues. the ondemand scaling worked quite well and kept my phone cool and my battery life high but all my apps were able to access the power made available by overclocking. I just recently flashed creamed glacier 7.1 because i really like some of the features that ics has to offer. I am torn though because i cant seemed to get any of my overclock applications to scale properly. I have tried no frills, and antutu both of which worked fine on virtuous affinity. when i try to run either of these on creamed glacier 7.1 they overclock my processor but it constantly runs at the max speed limit. the only scale that doesnt do this is the power saver which automatically runs at .122 ghz no matter the circumstances. I really like this rom but a big advantage the root gave me was the ability to overclock. Tmobile has the phone governed at 1ghz when it can easily run 1.5 as a daily speed and if scaled right 1.7 or 1.8 ran well. If anyone knows of any better apps that match with the creamed glacier kernel please let me know. I have tried fixing permissions, turning off logging, reinstalling the apps, and none of these things seem to help in the least. Thanks to all who take the time to read this. (ps please excuse my lack of formal grammar)

I really like ROM toolbox, or voltage control. However I have seen in several ICS roms that you can overclock from the settings without the need for an app. Dig around in your settings, maybe yours has that as well? I run mine normally about 1.3 which is more than sufficient for my usage.