(I figured to post this in Android Development as it wasn't really a fit for any other forum; and made its own thread since multiple ROMs and threads use non-stock kernels.)
I ran into an issue running JAC's OC/UV kernel, as detailed at http://forum.xda-developers.com/showthread.php?t=806116 . Essentially, whenever any kind of audio was playing, whether through headphones or the speaker, local media (i.e. mp3 player) or remote (i.e., Pandora), at some point the phone would just.. die. Capacitive buttons wouldn't light up, no unlock; music would die; and basically a battery pull was required to turn the phone back on. adb logcat reports nothing - you can see the audio streaming, then the logcat shut off with the phone.
Based on the thread above (and searching the Bionix thread), it seems that a non-stock kernel does this. (There are only a couple of posts out of the thousands on Bionix's thread.) I have not tested KingKlick's kernel, only JAC's; perhaps KK doesn't suffer from this. This issue is independent of overclocking/underclocking the phone (verified by setting JAC kernel to 1000/200, then uninstalling setcpu); Voodoo lagfix (verified by disabling lagfix and running audio for about an hour); and ROM (tested using multiple versions of Franken-Twiz and Hybrid - maybe there's an inherent issue with eugene's mods, but I haven't seen any other posts.)
I suppose this thread serves as a warning/bug report for anyone that might encounter this issue if running a non-stock kernel. The best way to resolve AFAIK is to revert to a stock kernel.
Thank you for posting this! My phone had suffered from this at random times since I started using JAC's kernel. I asked about it in a couple of threads but never got a single reply. Glad to know it's not only me
I'm running the same kernal and about 20 minutes ago running pandora my phone just turned off too and had to pull the battery to restart
Sent from bionix 1.9.1 jacs oc/uv kernel
Had that issue at the Gym the other day, not even on Bionix.
I had similar issues, also with the KK Kernel, its not just JAC's kernel. You don't have to pull the battery either to get out of the freeze, you can hold the power button for several seconds and it does a hard reset.
I have found though that the KK Kernel is less likely to do it if you set your setcpu to 400 min and 1000 max before using pandora. Those settings seems to have worked for me every time..also after setting up pandora make sure to fix permissions with rom manager.
Just a little work around, try it to see if it works for you.
Sent from my SGH-T959 using XDA App
Actually this is a known problem since even the G1.
If you have anything like setCPU, which I do, and you set the idle or lowest speed lower then 400 Mhz the phone will more then likely freeze up when playing music or when going to idle.
I don't remember off the top of my head what causes it to do this when it goes below that certain Mhz, but Im sure I or someone here can dig the old thread up.
Man without this thread I could never get pandora to work with a custom kernal. I setcpu at 400 min and 1000 max and not a single freeze. Thanks so much for posting that tip, you made my day.
Sent from my SGH-T959 using XDA App
Ive had this problem to.... but it was ONLY with Jacs 1.1, I revert every ROM back to his 1.0 and have no problems. Everytime I dont, I get a phone freeze.
I was having this problem with jac's newest kernel so I went back to his first OC/UV, it is a known problem and he's working on it according to his twitter. how I got around this is I used his OC script and got rid of setcpu, from what Quadrant says I'm still running 100/1200. Hope that helps you guys
jmercil said:
I have found though that the KK Kernel is less likely to do it if you set your setcpu to 400 min and 1000 max before using pandora. Those settings seems to have worked for me every time..also after setting up pandora make sure to fix permissions with rom manager.
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Click to collapse
Interesting. I'll try installing JAC OC/UV/Voodoo again and see if this observation is consistent.
r6kid said:
I was having this problem with jac's newest kernel so I went back to his first OC/UV, it is a known problem and he's working on it according to his twitter. how I got around this is I used his OC script and got rid of setcpu, from what Quadrant says I'm still running 100/1200. Hope that helps you guys
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Click to collapse
Yeah, I think the problem only exists when you use the OC kernel with setCPU, and setup setCPU under 400Mhz, other wise the kernel with out setCPU works just fine when it goes below 400Mhz.
Once again I don't remember why it does that but it has something to do with setCPU not being able to initialize properly after the phone goes idle and falls below 400Mhz.
Would have to agree. There's a bug somewhere. Not sure if its limited to jacs though.
Currently on masters rom kk. Only problem is pandora.
i had this problem too. kinda disappointed cause the kernels make everything run so much better. so i had to go back to using stock cause i listen to music a lot :/
There's definitely some hardware variability, because I can't recreate this bug. I listen to music all day long (MixZing, Slacker, Pandora) running 1.8 w/ JAC's OC/UV Voodoo. Never seen this.
Likewise with Jacs 1.1, had a couple other weird issues running that specific kernel too, not a single problem when I flashed back to 1.0
Sent from my T959 running Bionix1.9 with Jacs OC/UV and Voodoo
i get this same thing. ive had it happen with SetCPU both installed and not. right in the middle of a good song bam phone just shuts up. walk over to my toolbox and sure enough the phone is in a state of being divided by zero and only a battery pull lets it return to the world of the living. not greally a good thing when i have sevearl iphone dorks in the shop and they pop on over to my speakers and they say out of the way lets plug in a REAL phone. makes me want to scream LOL. ****ing iphone >_<
i retort with soooo when you get it out of the box....thats it right? nothing can be changed right? oh look that program sucks....what you cant make your own? ...yea...i thought so. hey look im making a call in the scrap room surrounded by 4ft thick concrete walls.... i got full bars lol. they got nothing in the empty parking lot cuz there holding it wrong LOL
Blkegk said:
Man without this thread I could never get pandora to work with a custom kernal. I setcpu at 400 min and 1000 max and not a single freeze. Thanks so much for posting that tip, you made my day.
Sent from my SGH-T959 using XDA App
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Click to collapse
Glad it worked for ya!
Sent from SGSV Bionix 1.9.1 KK OC/UV with the quickness!
sxfx said:
Yeah, I think the problem only exists when you use the OC kernel with setCPU, and setup setCPU under 400Mhz, other wise the kernel with out setCPU works just fine when it goes below 400Mhz.
Once again I don't remember why it does that but it has something to do with setCPU not being able to initialize properly after the phone goes idle and falls below 400Mhz.
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Click to collapse
I tried that though, as you can see in the thread I linked to above. Uninstalling SetCPU didn't help..
I think it's hardware.... One of the unlucky ones....
Try with a stock kernel. Jac and kk kernels do uv by default, which is like overclocking in reverse. It has the same possible stability issues.
Related
I've been experimenting with several new ROMs and have found in every case that when I install SetCPU (either choosing automatic/HTC Hero profiles) it causes dramatic slowdown on my device to the point where I just can't bear to use it. On some screens it takes 5-10 seconds to load and when I am typing a message it is often an entire WORD behind my pace and constantly trying to catch up - for the record I am no champion speed texter!
With SetCPU uninstalled my device goes back to normal.
I purchased SetCPU last year and have always enjoyed it, but it seems with the new 2.1 ROMs, it causes more bad than good. I was in the sprint store the other day looking at the EVO and I happened to use one of their stock Hero's and the difference in speed between that and mine was STAGGERING.
So is it SetCPU by itself or both it and 2.1 ROMs?
Are you using it on an oc'd rom? id not reccomend using a oc tool, manually throttle ot to where you want
this doesnt belong in dev
From what I understand is that you don't even have to use an OC tools such as OC Widget and SetCPU with Toast's kernel. I may have read this wrong so I'd ask someone else. It is built with the On Demand throttling, I believe. Therefore, if you use a 710Mhz one it will scale from it's lowest freq to it's highest when needed. But again I am not sure. Ask someone else.
Yeah Ive been using the 710 dam ker and I was fine for a week then all of a sudden lock ups and crashes when answering the phone etc I wiped and started over and its good I do want to clock it a bit though so any good recomendations would be great
Alright so over the past few months with my Captivate Ive come across a few things that i havnt really been able to find a definitive answer to.
Lets start off with my biggest question, Ive noticed with this phone vs other phones (especially the evo and the iphone even) that the volume coming out of the headphone jack for music is pretty darn quiet. Are there any programs that can change volume output or dialer numbers I can enter to bring up a debug menu to change this?
Next question is which is the best overclock kernel(s) out there for the captivate? And if im using a rom like Cognition can I flash it through CWM? Also if there is one that exists...is there an overclock kernel that doesnt cause Charge of Death?
While im on the subject of Overclocking and Kernels, I havnt really found a great explanation on how to use Voltage control and what exactly what it is youre doing when you are changing the sliders around. And vs. other android phones with custom kernels, what makes ours different to where setcpu is advised NOT to be used?
Audio boost is an app that is supposed to improve volume, it is not free but not expensive.
You can use oc kernel with cog. Glitterballs appears to have fixed charging death on his kernel, should work with cog, sentiro kernel works with cog but I think there is a chance for charging death. Either way do not use ak kernel that hours over 1200ghz
Use sgs kernel flasher app free on market to flash kernel
Voltage control app is easy but unless you are looking at it , it is hard to explain
Sent from me
mcord11758 said:
Audio boost is an app that is supposed to improve volume, it is not free but not expensive.
You can use oc kernel with cog. Glitterballs appears to have fixed charging death on his kernel, should work with cog, sentiro kernel works with cog but I think there is a chance for charging death. Either way do not use ak kernel that hours over 1200ghz
Use sgs kernel flasher app free on market to flash kernel
Voltage control app is easy but unless you are looking at it , it is hard to explain
Sent from me
Click to expand...
Click to collapse
Thanks! i got Audioboost and that works pretty well. As far as glitterballs kernel...in the thread he said he removed it for now for some reason?
and what did you mean when u said "Either way do not use ak kernel that hours over 1200ghz". Also can you atleast tell me what the sliders are doing when you are changing them from 100-75-50 and so on?
Man I suck at swype.
Ok glitterballs had removed later versions of his kernel because of some bug reports. I am on version released on 12/23 #7 and it is very stable. It is linked in the op but if you were going to use it I would suggest posting in the thread and making sure you get the right version
I meant to say either way I would not use a kernel that oc past 1200ghz
The sliders in voltage app is to under volt. So at the different frequencies you can reduce the juice the phone uses. Can save battery life, but depending on your settings could freeze up phone. I personally do not play with under volt
Sent from me
It always restarts automatically, when i make a call, the call just freezes and when i turn the phone on from standby to see what happen, well you guessed it, it restarts! its pretty annoying i went through 2 batteries today in 8 hours, because of the restarts. please help!
If your using the stock kernel I think its overclocked to 768 not sure though. Try one of dec's 691 kernel the #589 is my recommendation. Hope it helps good luck.
Root-Hack-Mod-Always™
jlopez512 said:
It always restarts automatically, when i make a call, the call just freezes and when i turn the phone on from standby to see what happen, well you guessed it, it restarts! its pretty annoying i went through 2 batteries today in 8 hours, because of the restarts. please help!
Click to expand...
Click to collapse
There could be a lot of things happening. The most common is that your running a clock speed higher than that which your phone can handle. Not all heros are created equal, mine for instance starts rebooting at anything higher than 691. Try a different kernel or if using setcpu or over clocking widget to lower your upper end clock speed. Your phone freezing when coming out of standby can mean your lower clock speed is too low. ASOPGB has JIT enabled by default as well. Go into the settings and turn it off, then reboot. You will just have to play until you find out what works for you. Good luck!
runngwlf said:
There could be a lot of things happening. The most common is that your running a clock speed higher than that which your phone can handle. Not all heros are created equal, mine for instance starts rebooting at anything higher than 691. Try a different kernel or if using setcpu or over clocking widget to lower your upper end clock speed. Your phone freezing when coming out of standby can mean your lower clock speed is too low. ASOPGB has JIT enabled by default as well. Go into the settings and turn it off, then reboot. You will just have to play until you find out what works for you. Good luck!
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Click to collapse
Set cpu or similar will not fix the issue, laie was right a capped 691 kernel is needed and probably a capped recovery as well. Btw jit is no longer default in gb, and jit would not cause reboots anyway.
sent from my hero, which no longer sucks ass
il Duce said:
Set cpu or similar will not fix the issue, laie was right a capped 691 kernel is needed and probably a capped recovery as well. Btw jit is no longer default in gb, and jit would not cause reboots anyway.
sent from my hero, which no longer sucks ass
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Click to collapse
Ahh thanks for the info, I had not gotten through all the new posts on the other ASOP GB threads. Good to know though. I have no tried out the rom, I plan to this weekend and my phone does NOT like kernels that clock above 691.
Ok, so here's the deal - I'm not sure how best to explain this so bare with me... basically I've been running various oc/uv kernels for a while now on my Captivate and have had minimal problems with them. I've had the occasional freeze due to too low uv settings but never anything as weird as the freeze issue I'm having now.
I d/led several kernels to play with and ended up with GB's Steam kernel via Serendipity 4.3 (which is the ROM I'm using now), moved onto Suckerpunch's Suckerpunch-SmR-#27-1280-500hz-CWM to Speedmod-Kernel-i897-k12s-cold-500hz-CWM I think, then to GB's rGB-v.4-011811-voodoo-cwm and now I'm on Suckerpunch-SmR-500mz-#32-CWM (or w/e the full name is...) The issue is that my phone is randomly freezing w/o Voltage Control/SetCPU/Galaxy Tuner running or even installed (as is normally the reason for freezing with me and oc/uv kernels). Now I had VC and GT installed but realized GT wasn't going to be much use so I uninstalled and VC was never set to keep settings at boot so I don't think that VC would be the culprit but I'm not sure...but anyways, I noticed that the freezes started the other night after I tried to add a task widget to my ADW EX launcher via SpringPad with the current screen full. When that happened, my phone lost it's mind...it caused the launcher to repeatedly FC and when you would reopen the launcher w/ the home key it would load to a point where the widgets started to load then it was like it hit what was supposed to be that SP widget but then it would realize the screen was full and would FC again. Well, I FINALLY managed to clear the launcher data, retried, no success, uninstalled SpringPad, launcher still FC'd, uninstalled launcher, no FC (as it wasn't there anymore...) but the phone would now randomly freeze up with little to no provocation. I finally broke down and flashed a different kernel to see if it would help and oddly enough it did. It was only when I flashed a non-oc/uv kernel that it would stop freezing. Now I can't see any correlation between the freaking out launcher and the kernel but who knows, right? I tested my theory by leaving the launcher and app uninstalled and reflashed a ov/uc kernel. About a minute after loading the phone would freeze. The few times it would actually run longer than a minute it would die when I was listening to Slacker Radio and I would get a text. The phone would cooperate until I actually SENT the message and then it'd die. I think I rotated the phone at this point, too, and it did the same freezing deal when I was typing up a comment on Facebook and rotated the phone.
So...in the end, I'm stuck. I'm not sure what it could be. I really don't feel like backing up and reflashing so I may just stay w/ a non-oc/uv kernel until I decided to flash again but if anyone has an idea on what to check then I'll be happy to do it. I saw somewhere that if you had an oc/uv kernel w/ boot settings set that you had to clear those out prior to flashing certain kernels or risk conflicts. Don't see how that would apply here since I didn't have boot settings set but figured I'd throw that out there before someone asked.
I'm running Serendipity 4.3 w/ SuckerPunch SmR 500hz #32 kernel w/ lag-fix enabled and I9088ZNKP1 modem on Android 2.2.1 for reference. VC is installed but obviously won't function on this non-oc/uv kernel. Voodoo v4 is installed for whatever that's worth.
Anyone have any ideas on wtf is going on??
And I apologize for the horribly long, terribly worded post. I've been at work since 8 this morning and I'll be here til midnight...I'm running on fumes at this point. Woo...lol Thanks in advance, guys.
HTCOmega said:
Ok, so here's the deal - I'm not sure how best to explain this so bare with me... basically I've been running various oc/uv kernels for a while now on my Captivate and have had minimal problems with them. I've had the occasional freeze due to too low uv settings but never anything as weird as the freeze issue I'm having now.
I d/led several kernels to play with and ended up with GB's Steam kernel via Serendipity 4.3 (which is the ROM I'm using now), moved onto Suckerpunch's Suckerpunch-SmR-#27-1280-500hz-CWM to Speedmod-Kernel-i897-k12s-cold-500hz-CWM I think, then to GB's rGB-v.4-011811-voodoo-cwm and now I'm on Suckerpunch-SmR-500mz-#32-CWM (or w/e the full name is...) The issue is that my phone is randomly freezing w/o Voltage Control/SetCPU/Galaxy Tuner running or even installed (as is normally the reason for freezing with me and oc/uv kernels). Now I had VC and GT installed but realized GT wasn't going to be much use so I uninstalled and VC was never set to keep settings at boot so I don't think that VC would be the culprit but I'm not sure...but anyways, I noticed that the freezes started the other night after I tried to add a task widget to my ADW EX launcher via SpringPad with the current screen full. When that happened, my phone lost it's mind...it caused the launcher to repeatedly FC and when you would reopen the launcher w/ the home key it would load to a point where the widgets started to load then it was like it hit what was supposed to be that SP widget but then it would realize the screen was full and would FC again. Well, I FINALLY managed to clear the launcher data, retried, no success, uninstalled SpringPad, launcher still FC'd, uninstalled launcher, no FC (as it wasn't there anymore...) but the phone would now randomly freeze up with little to no provocation. I finally broke down and flashed a different kernel to see if it would help and oddly enough it did. It was only when I flashed a non-oc/uv kernel that it would stop freezing. Now I can't see any correlation between the freaking out launcher and the kernel but who knows, right? I tested my theory by leaving the launcher and app uninstalled and reflashed a ov/uc kernel. About a minute after loading the phone would freeze. The few times it would actually run longer than a minute it would die when I was listening to Slacker Radio and I would get a text. The phone would cooperate until I actually SENT the message and then it'd die. I think I rotated the phone at this point, too, and it did the same freezing deal when I was typing up a comment on Facebook and rotated the phone.
So...in the end, I'm stuck. I'm not sure what it could be. I really don't feel like backing up and reflashing so I may just stay w/ a non-oc/uv kernel until I decided to flash again but if anyone has an idea on what to check then I'll be happy to do it. I saw somewhere that if you had an oc/uv kernel w/ boot settings set that you had to clear those out prior to flashing certain kernels or risk conflicts. Don't see how that would apply here since I didn't have boot settings set but figured I'd throw that out there before someone asked.
I'm running Serendipity 4.3 w/ SuckerPunch SmR 500hz #32 kernel w/ lag-fix enabled and I9088ZNKP1 modem on Android 2.2.1 for reference. VC is installed but obviously won't function on this non-oc/uv kernel. Voodoo v4 is installed for whatever that's worth.
Anyone have any ideas on wtf is going on??
And I apologize for the horribly long, terribly worded post. I've been at work since 8 this morning and I'll be here til midnight...I'm running on fumes at this point. Woo...lol Thanks in advance, guys.
Click to expand...
Click to collapse
Kernel flashing doesn't always go smoothly. Repeated kernel flashing without complete system wipes in between can cause some things to start going horribly wrong.
Don't use SetCPU to set clockspeeds. Just stick with voltage control.
If you forgot to disable any lagfixes at any point along the way, that could explain alot of the problem.
Suckerpunch kernel is a great concept and is showing alot of promise, but I personally have had alot of stability issues while using it, including random freezes (YMMV, of couse).
Just my opinion, but I would just back up all your data, flash back to stock, master clear, wipe all your cache data, reflash your rom, pick a kernel and stick with it for a while. If you want pure stability and battery life, use the most recent version of either DG's Firebird kernel 2 or Hardcore's speedmod kernel. If you want stability and oc/uv enabled, stick with Glitterball's kernel. Those 3 have been the best for me personally (again, YMMV).
http://www.tabbal.net/files/Dragon-Kernel-Voodoo-OC-v3.3-T1.zip
Dragon 3.2 w/ a fix that seems to work for setCPU screen off profiles setting the CPU to low values. Please note: The max freq in setCPU for that profile is what will be used, no scaling. I set it to 200Mhz and it's working fine every time I fire it back up.
The original patch is from here: https://review.source.android.com//#change,20804
Created by coolbho3k for the Nexus S, I backported it to Froyo. If we get good test reports from others, I'll push the changes to github tomorrow so other devs can use it.
When testing, please either use known good OC/UV settings, or don't OC/UV at all. Phantom OC/UV crashes won't help us know if this is working well for others. I've tested it with and without, turning my phone on/off like a madman... working fine so far.
Hmmm... early reports aren't looking good. Perhaps something isn't quite right. lol... Be warned if you try it, read all the comments. Might have to declare this one a fail. Too bad the NS cpu-freq driver is so different.. maybe I'll try pulling the whole thing over..
Downloading now report back tomorrow! This sounds promising.
Sent from my SGH-T959 using XDA App
Will test as soon as i get mine back to stock! Its just what I felt like doing today.
I did have a question..
Do we need to adjust it to say.. performance,on demand powersave? or will it just default?
just flashed it on my phone its been running warm hot even then after about 10 15mins of running it reboots
coolkid893 said:
just flashed it on my phone its been running warm hot even then after about 10 15mins of running it reboots
Click to expand...
Click to collapse
wow that can't be good. Sounds like the phone is overheating..
PaiPiePia said:
wow that can't be good. Sounds like the phone is overheating..
Click to expand...
Click to collapse
ya i know an its not even o/c its set to only max at 800mhz lol i think im gonna reflash to 3.2 to be safe but its a step in the right direction good try
Ok Im gunna have to try and install setcpu first.. otherwise my phone loads and restarts a few minutes into being on the desktop.
Testing now, Just UV'ed my clocks, and now setting profiles.
Observation so far:
SetCPU, and Uvolting seems to lock up my phone, and cause a reboot, and phone is pretty warm/hot.
Confirmed I can not run this either.
Couldn't use it. Phone would shut off as soon as scanning started. Kept happening everytime I tried to start phone :¬( going back to 3.2 has been stable at 1.4 ghz.
Sent from my SGH-T959 using XDA App
junxracr said:
Couldn't use it. Phone would shut off as soon as scanning started. Kept happening everytime I tried to start phone :¬( going back to 3.2 has been stable at 1.4 ghz.
Sent from my SGH-T959 using XDA App
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Click to collapse
Im having better luck using profiles with 3.2 than with this one. I've been using set cpu since 3.2 came out with no problems @1.4 and on powersave when screen is off. I have made no changes to the UV settings.
yikes ! i smell quadrant score in few min lemme install it
Has anyone got a "kernel panic" on this before? I'm not sure what I could have done wrong.. had to Odin back to stock. Forgot to back up before I flashed, shame on me. lol.
kernel panic wipes your data ? everytime kernel panicked on me i just restarted =D
bartek25 said:
kernel panic wipes your data ? everytime kernel panicked on me i just restarted =D
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Nah, it didn't wipe my data. I had to Odin back to stock because I couldn't go into Clockwork Mod Recovery Mode. It would go into Kernel Panic and it reset all my launcher settings....
Was running hot for me also. Back to stock and then to bionix .
I think that when you get things fine tuned you will have a great Kernal.