Tiamat OC Question - Xoom Q&A, Help & Troubleshooting

Hey, I've had my wifi xoom since launch and also was rooted w/ tiamat kernel from the start. However I'm posting this question again since the kernel thread moves way to fast.
Anyways, for overclocking I set my min to 216 and my max to 1200 on interactive.
Now for the issue (unless I'm missing something), randomly it will go up to the max allowed frequency which is 1700 on 1.4.4, I have it set to 1200 max so I don't understand why it decides to go to 1700 for a while and not cap out at 1200. The problem is 1700 makes my xoom get hot esp w/ heavy use.
Currently I am using droid overclock but I have the same issue with setcpu.
What's going on? Why does it go past the 1200 max mark, am I missing something? I don't like the extra heat it generates.
Any help would be greatly appreciated, thanks!

Related

Best Underclock/Overclock Settings?

Just downloaded SetCPU and I'm ready to Under/Overclock! Would you guys mind posting your most successful settings? I've also got Voltage Control if you would like to use that.
I'm mostly interested in Underclocking to save battery life(with Voodoo enabled this phone runs fast as hell anyway!) but I would also appreciate your overclock settings just in case I decide to OC in the future. Thanks!
Haven't overclocked but I just under'd to 800mhz and it's working fine, I'll probably stay at this voltage for best performance and battery life hybrid Only made this thread because I didn't really want to crash my phone or cause any problems as I've seen happen to some people.
100-1400 mhz, -50mv across the board
With voltage control:
1000 -75 (1200mv)
800 -100 (1100mv)
400 -125 (925mv)
200 -125 (825mv)
100 -150 (800mv) maybe a lil unstable???
On pbj-oc kernel
dalvik cache=64mb
max events=95
wifiscan=180
Seems to work fine for me...
{SDCharge Humb£e 1.25}
Just a side note, 800mhz seems like a great processor speed. My phone never gets hot or even warm anymore, in fact it feels like it's air conditioned! Not only that the battery life is great now and it doesn't even seem any slower. **** overclocking!

[Q] SetCPU vs. Voltage Control, and what are some recommended settings?

My understanding is most people prefer Voltage Control, but SetCPU allows for specific under/overclocking profiles that can increase performance without killing battery life.
If someone could direct me to popular, trusted settings, I'd appreciate it. I'm not a heavy user or power user, so I'm looking for something that just works well. I don't care about benchmarks and things of that nature.
I'm sure this has been discussed, but I was unable to find posts that didn't concern user-specific issues.
Thanks,
Wyatt
EDIT: 53 views and no replies. I guess I'll experiment for myself. Wish me luck!
gnarlynewport said:
EDIT: 53 views and no replies. I guess I'll experiment for myself. Wish me luck!
Click to expand...
Click to collapse
That's really all it comes down too...experimenting and finding out what works best on YOUR phone with YOUR configuration...
GOOD LUCK!
ps... have been very stable with OC'd to 1.4
-25 down too 200
-100 on 100
bfq and conservative
I use VControl myself...i like the UI.
For Performance: 100-1.4GHZ (1.5 works too, but is WAY overvolted, and 1.6 is extremely unstable), -100mV from 100-1000 MHZ, -75 for 1.1-1.4GHZ.
For "Battery Life": (i really don't see a difference...) 100-800 MHZ (anything below 800 is painfully slow), -100mV across the board.
I leave schedulers and governors at their stock settings, the only time I change anything is to set the gov. to Performance on Performance for max Quadrant scores.
kvswim said:
I use VControl myself...i like the UI.
For Performance: 100-1.4GHZ (1.5 works too, but is WAY overvolted, and 1.6 is extremely unstable), -100mV from 100-1000 MHZ, -75 for 1.1-1.4GHZ.
For "Battery Life": (i really don't see a difference...) 100-800 MHZ (anything below 800 is painfully slow), -100mV across the board.
I leave schedulers and governors at their stock settings, the only time I change anything is to set the gov. to Performance on Performance for max Quadrant scores.
Click to expand...
Click to collapse
How many Mhz levels are you selecting? In my experience anything above 5 and it WILL NOT clock up to the higher settings. Maybe thats why you notice no difference in battery life?
For instance if you had say 100, 200, 400, 800, 1000 and 1400 you will reace 1000mhz only
if you had 100, 200, 400, 800, 1400 you would reach the 1400mhz. ive tried many combos and 5 or less was the max it would use (voltage control app, im sure setcpu would most likely be the same)
How many slots does the imnuts kernel support?
Sent from my SCH-I510 using Tapatalk
I started using SetCPU, and I think I prefer it.
Quick question, it seems like rebooting is unnecessary for the changes to take effect, is that true?
Overclocking definitely worked. I got 1853 @ 1200mhz in Quadrant, up from 1600.
Edit: now 2025 @ 1300mhz / 1300mhv
2nd Edit: Late last night, I was using a stability test in one of the apps, but I can't for the life of me remember which app or how I found it. Now I'm using StabilityTest from the market. What's a safe cpu temp for these phones? I'm getting 32 degrees under full load in an air conditioned environment.
gnarlynewport said:
I started using SetCPU, and I think I prefer it.
Quick question, it seems like rebooting is unnecessary for the changes to take effect, is that true?
Overclocking definitely worked. I got 1853 @ 1200mhz in Quadrant, up from 1600.
Edit: now 2025 @ 1300mhz / 1300mhv
2nd Edit: Late last night, I was using a stability test in one of the apps, but I can't for the life of me remember which app or how I found it. Now I'm using StabilityTest from the market. What's a safe cpu temp for these phones? I'm getting 32 degrees under full load in an air conditioned environment.
Click to expand...
Click to collapse
I just switched over to Setcpu as well. It seems to work better for me also. I can now select 6 levels instead of the 5 before in voltage control and I also noticed that the set on boot on voltage control did NOT work but it DOES work in setcpu!! Im happy!
Haven't tried Setcpu yet, but I preferred Pimp my CPU over VC when I was using Miui on the Fascinate.
Sent from my SCH-I510 using XDA App

[Q] Recommended undervolt settings (Clemsyn-blades)

I tried to search but was unsuccessful to find the information that I wanted.
Can someone tell me what are the recommended safe undervolt settings for the transformer?
I'm running prime 1.9 with clemsyn-blades 1.6a.
Thx
Sent from my Transformer TF101 using Tapatalk
steve.garon said:
I tried to search but was unsuccessful to find the information that I wanted.
Can someone tell me what are the recommended safe undervolt settings for the transformer?
I'm running prime 1.9 with clemsyn-blades 1.6a.
Thx
Sent from my Transformer TF101 using Tapatalk
Click to expand...
Click to collapse
I don't know what the stock settings are but I can tell you the process I followed when I OCed my tablet. Install the custom kernel and rom you want. Then install an app to modify frequency and voltages. I use setCPU but pimpmycpu works also.
1. Find the highest clock you can attain with the provided overvolt from the kernel. To do this just start at the highest frequency and see if the tablet reboots or locks during a stress test. Some people play games to stress. I use the built in stress tester in SetCPU. Make sure to apply the higher frequency for testing but not to apply settings on reboot or you could get stuck in a reboot loop (or so I am assuming the kernel might reset to 1 GHz when a hard lock occurs).
2. Once you have the maximum Frequency (for me it was 1.644 MHz) then start lowering the voltage for that frequency only until you loose stability. I can undervolt 1.644 by -75 mV. If I go upto -100 then I get random reboots. I go in -25 mV increments but you could narrow it down even more by going with -10 or even -5 intervals.
3. Take the offset you got (in my case -75 mV)on the highest frequency and apply it to every frequency above 1 GHz and see if this is stable. If not then slowely increase voltage until you gain stability again.
4. (Optional) Then start undervolting stock frequencies from 216 MHz to 1 GHz. Every tablet is different but (I have heard) this could cause sleep issues. I undervolted all frequencies from above 216 to 1000 GHz by -25 Mv without any issues. I may bring it down slowely by increments of-5 or -10 until I run into some issues.
5. (Optional) Undervolt 216 MHz as low as possible to save standby battery power. I undervolted my 216 MHz to 725 mV (even though SetCPu goes lower the kernel is locked at this). Which helps keep my battery levels up when the tablet screen is off and not in use.
Hints: To test that a voltage is okay at a certain frequency then make sure to set your max to the frequency level you want to test. If you set the max at 1544 and undervolt 1 GHz you will never know if it is okay because when you stress it it will blow right past 1 GHz upto 1544 and the voltage for that will take over.
If you have any questions please let me know.
Bjd223 said:
I don't know what the stock settings are but I can tell you the process I followed when I OCed my tablet. Install the custom kernel and rom you want. Then install an app to modify frequency and voltages. I use setCPU but pimpmycpu works also.
1. Find the highest clock you can attain with the provided overvolt from the kernel. To do this just start at the highest frequency and see if the tablet reboots or locks during a stress test. Some people play games to stress. I use the built in stress tester in SetCPU. Make sure to apply the higher frequency for testing but not to apply settings on reboot or you could get stuck in a reboot loop (or so I am assuming the kernel might reset to 1 GHz when a hard lock occurs).
2. Once you have the maximum Frequency (for me it was 1.644 MHz) then start lowering the voltage for that frequency only until you loose stability. I can undervolt 1.644 by -75 mV. If I go upto -100 then I get random reboots. I go in -25 mV increments but you could narrow it down even more by going with -10 or even -5 intervals.
3. Take the offset you got (in my case -75 mV)on the highest frequency and apply it to every frequency above 1 GHz and see if this is stable. If not then slowely increase voltage until you gain stability again.
4. (Optional) Then start undervolting stock frequencies from 216 MHz to 1 GHz. Every tablet is different but (I have heard) this could cause sleep issues. I undervolted all frequencies from above 216 to 1000 GHz by -25 Mv without any issues. I may bring it down slowely by increments of-5 or -10 until I run into some issues.
5. (Optional) Undervolt 216 MHz as low as possible to save standby battery power. I undervolted my 216 MHz to 725 mV (even though SetCPu goes lower the kernel is locked at this). Which helps keep my battery levels up when the tablet screen is off and not in use.
Hints: To test that a voltage is okay at a certain frequency then make sure to set your max to the frequency level you want to test. If you set the max at 1544 and undervolt 1 GHz you will never know if it is okay because when you stress it it will blow right past 1 GHz upto 1544 and the voltage for that will take over.
If you have any questions please let me know.
Click to expand...
Click to collapse
Cool. I'll give this a try.
Sent from my Nexus S using Tapatalk
I get a stable undervolt at -50 on all cpu steps which is pretty good. This should save loads of battery.
Sent from my Nexus S using Tapatalk
steve.garon said:
I get a stable undervolt at -50 on all cpu steps which is pretty good. This should save loads of battery.
Sent from my Nexus S using Tapatalk
Click to expand...
Click to collapse
I started at the top and went down every stepping from 1624 to 1000 and found out the lowest stable frequency and then added 10 to be safe to each one. I am currently at
1624 (-70)
1592 (-80)
1544 (-180)
1472 (-80)
1424 (-160)
1336 (-185)
1232 (-185)
1000 (- 110) which is 990 mV
I then set every stepping under 1 GHz frequency that was above 990 mV to 990 mV as if it can run at 1 GHz at that voltage then any speed under that will run fine at that voltage also. I have some more stability testing to do but I think I got it pretty much nailed down for my device. I may go through all the sub 1 GHz frequencies but it does take some time to run a stress test under each stepping.
Also I have never had any sleep issues but that is something to look out for. I also wonder how temperature affects stability as I have never gotten it above 40c. The pad might benefit from a 1 or 2mm thermal pad squeezed between the CPU and the back bezel (if it will fit).
Does anyone know that tjunction max for a Tegra2? I have a profile set up in SetCPU that sets the CPU frequency at 1 GHz if the CPU gets above 42 because I saw something similar in the Clemsyn rom but don't really know when the CPU will start to throttle itself at or shut off.
I am trying to find stock voltages for different devices because it seems like some mfgs are undervolting to save battery on some tablets.
Bjd223 said:
I started at the top and went down every stepping from 1624 to 1000 and found out the lowest stable frequency and then added 10 to be safe to each one. I am currently at
1624 (-70)
1592 (-80)
1544 (-180)
1472 (-80)
1424 (-160)
1336 (-185)
1232 (-185)
1000 (- 110) which is 990 mV
I then set every stepping under 1 GHz frequency that was above 990 mV to 990 mV as if it can run at 1 GHz at that voltage then any speed under that will run fine at that voltage also. I have some more stability testing to do but I think I got it pretty much nailed down for my device. I may go through all the sub 1 GHz frequencies but it does take some time to run a stress test under each stepping.
Also I have never had any sleep issues but that is something to look out for. I also wonder how temperature affects stability as I have never gotten it above 40c. The pad might benefit from a 1 or 2mm thermal pad squeezed between the CPU and the back bezel (if it will fit).
Does anyone know that tjunction max for a Tegra2? I have a profile set up in SetCPU that sets the CPU frequency at 1 GHz if the CPU gets above 42 because I saw something similar in the Clemsyn rom but don't really know when the CPU will start to throttle itself at or shut off.
I am trying to find stock voltages for different devices because it seems like some mfgs are undervolting to save battery on some tablets.
Click to expand...
Click to collapse
-180 in some frequencies!! Thats just insane. I've got to try this.
FYI, you don't have to lower voltage for all upper 1ghz frequencies. If your running at 1544 for exemple. The cpu will never touch the frequencies between 1000 and 1544. After the 1000 its a direct step to whatever frequency your overclocking too. You can monitor this in setcpu.
I cannot undervolt as precise as you can. For some reason setcpu only let me do 25mv increment...
Sent from my Nexus S using Tapatalk
I have undervolted by -175 on all frequencies, obviously 216Mhz is locked but all seems pretty stable after some testing. No sleep death either so I'm going to carry on testing.
steve.garon said:
-180 in some frequencies!! Thats just insane. I've got to try this.
FYI, you don't have to lower voltage for all upper 1ghz frequencies. If your running at 1544 for exemple. The cpu will never touch the frequencies between 1000 and 1544. After the 1000 its a direct step to whatever frequency your overclocking too. You can monitor this in setcpu.
I cannot undervolt as precise as you can. For some reason setcpu only let me do 25mv increment...
Sent from my Nexus S using Tapatalk
Click to expand...
Click to collapse
In SetCPU do not use the slider use the keyboard and type in the exact number you want.
I wanted to figure out every stepping in case I wanted to switch to a lower frequency but yeah most poeple don't have to do this.
The lowest stable I have gotten is -190 but feel like adding 10 padding will ensure stability.
I will probably do the sub 1 GHz frequencies today or tomorrow.
Bjd223 said:
In SetCPU do not use the slider use the keyboard and type in the exact number you want.
I wanted to figure out every stepping in case I wanted to switch to a lower frequency but yeah most poeple don't have to do this.
The lowest stable I have gotten is -190 but feel like adding 10 padding will ensure stability.
I will probably do the sub 1 GHz frequencies today or tomorrow.
Click to expand...
Click to collapse
I didnt even noticed I could use the keyboard...
I finally settled to -25 @216, -50 under 612 and -100 over 612. And everything is stable
Sent from my Nexus S using Tapatalk
I have tested each voltage. I am under the impression that 725 mV is the kernel minimum in the Clemsyn kernel so once I hit that I just set every frequency under that too 725. I will eventually go through and stress test every frequency @ 725 to make sure everything is a-okay but I am sure it is.
Here is my list incase anyone wants a place to start.
1680 MHz (-000) I can not overclock to this freuqency.
1624 MHz (-070) 1380 mV
1592 MHz (-080) 1345 mV
1544 MHz (-180) 1220 mV
1472 MHz (-080) 1220 mV
1424 MHz (-160) 1115 mV
1336 MHz (-185) 1065 mV
1232 MHz (-185) 990 mV
1000 MHz (-215) 885 mV
0912 MHz (-215) 835 mV
0816 MHz (-235) 790 mV
0760 MHz (-215) 760 mV
0608 MHz (-225) 725 mV
0456 MHz (-100) 725 mV
0312 MHz (-075) 725 mV
0216 MHz (-025) 725 mV
Clemsyn said the minimum mV in his kernel but I can't seem to find the thread, but I think it was 725. If I find out it is something lower I will go through the lower ones until I hit the minimum.
Also please note that everything above 1 GHz has +10 mV padding added to it above the lowest stable I could find. Everything below 1 GHz only has a +5 mV padding on it. So for example I actually hit a -240 w/o any issues @ 816 MHz.
I tested in +/-5 mV increments but if you wanted you could narrow it down even further.
EDIT: Also after some testing it looks like it does use frequencies between 1 GHz and your max. I have it set to 1644 and it does hit 1232 MHz occasionally.
Bjd223 said:
I don't know what the stock settings are but I can tell you the process I followed when I OCed my tablet. Install the custom kernel and rom you want. Then install an app to modify frequency and voltages. I use setCPU but pimpmycpu works also.
1. Find the highest clock you can attain with the provided overvolt from the kernel. To do this just start at the highest frequency and see if the tablet reboots or locks during a stress test. Some people play games to stress. I use the built in stress tester in SetCPU. Make sure to apply the higher frequency for testing but not to apply settings on reboot or you could get stuck in a reboot loop (or so I am assuming the kernel might reset to 1 GHz when a hard lock occurs).
2. Once you have the maximum Frequency (for me it was 1.644 MHz) then start lowering the voltage for that frequency only until you loose stability. I can undervolt 1.644 by -75 mV. If I go upto -100 then I get random reboots. I go in -25 mV increments but you could narrow it down even more by going with -10 or even -5 intervals.
3. Take the offset you got (in my case -75 mV)on the highest frequency and apply it to every frequency above 1 GHz and see if this is stable. If not then slowely increase voltage until you gain stability again.
4. (Optional) Then start undervolting stock frequencies from 216 MHz to 1 GHz. Every tablet is different but (I have heard) this could cause sleep issues. I undervolted all frequencies from above 216 to 1000 GHz by -25 Mv without any issues. I may bring it down slowely by increments of-5 or -10 until I run into some issues.
5. (Optional) Undervolt 216 MHz as low as possible to save standby battery power. I undervolted my 216 MHz to 725 mV (even though SetCPu goes lower the kernel is locked at this). Which helps keep my battery levels up when the tablet screen is off and not in use.
Hints: To test that a voltage is okay at a certain frequency then make sure to set your max to the frequency level you want to test. If you set the max at 1544 and undervolt 1 GHz you will never know if it is okay because when you stress it it will blow right past 1 GHz upto 1544 and the voltage for that will take over.
If you have any questions please let me know.
Click to expand...
Click to collapse
Thanks for this mate. I followed your guide exactly and I'm using clems 16? Kernel completely stable at all frequencies including the undervolting!
Based on my testing you need ~ a +15 to +25 mV over stable CPU voltage to get stable 3D GPU.
I found that I could run hours of "Stress CPU" without any issues at a voltage but during stressful 3D games that are using CPU + GPU cores, at that same frequency, the machine would FC the app, reboot or lock. I have also noticed that the closer you are to the stable voltage different things will happen.
Far off - machine will usually reboot
Closer - machine will usually hard lock
Even closer - Apps will FC, widgets will act strange (like invert colors, black blocks for backgrounds, etc.)
So what I do now is I test with Dungeon Defenders at the main menu. Its seems that if you can last 1 hr at the Dungeon Defenders menu you are GTG. If you actually play the game then 1 stage is what I use to test.
Bjd223 said:
I don't know what the stock settings are but I can tell you the process I followed when I OCed my tablet. Install the custom kernel and rom you want. Then install an app to modify frequency and voltages. I use setCPU but pimpmycpu works also.
1. Find the highest clock you can attain with the provided overvolt from the kernel. To do this just start at the highest frequency and see if the tablet reboots or locks during a stress test. Some people play games to stress. I use the built in stress tester in SetCPU. Make sure to apply the higher frequency for testing but not to apply settings on reboot or you could get stuck in a reboot loop (or so I am assuming the kernel might reset to 1 GHz when a hard lock occurs).
2. Once you have the maximum Frequency (for me it was 1.644 MHz) then start lowering the voltage for that frequency only until you loose stability. I can undervolt 1.644 by -75 mV. If I go upto -100 then I get random reboots. I go in -25 mV increments but you could narrow it down even more by going with -10 or even -5 intervals.
3. Take the offset you got (in my case -75 mV)on the highest frequency and apply it to every frequency above 1 GHz and see if this is stable. If not then slowely increase voltage until you gain stability again.
4. (Optional) Then start undervolting stock frequencies from 216 MHz to 1 GHz. Every tablet is different but (I have heard) this could cause sleep issues. I undervolted all frequencies from above 216 to 1000 GHz by -25 Mv without any issues. I may bring it down slowely by increments of-5 or -10 until I run into some issues.
5. (Optional) Undervolt 216 MHz as low as possible to save standby battery power. I undervolted my 216 MHz to 725 mV (even though SetCPu goes lower the kernel is locked at this). Which helps keep my battery levels up when the tablet screen is off and not in use.
Hints: To test that a voltage is okay at a certain frequency then make sure to set your max to the frequency level you want to test. If you set the max at 1544 and undervolt 1 GHz you will never know if it is okay because when you stress it it will blow right past 1 GHz upto 1544 and the voltage for that will take over.
If you have any questions please let me know.
Click to expand...
Click to collapse
I always wanted to learn more about the mV and CPU speed stuff. I always install rom, install kernel of the one I heard the better is and that's it. Never had touched the voltage measure in any of my android device. Yeah i know, so noob.
Thanks for this how to info, I think I will play around a bit later. Right now I'm struggling with my self on wish of the 3 roms available install and stay.
Had to remove undervolt this weekend since my camera wouldnt start anymore. I'll have to redo all the tests I was doing but test for camera too. The tablet would just freeze as soon as I opened the camera app
Sent from my Nexus S using Tapatalk
steve.garon said:
Had to remove undervolt this weekend since my camera wouldnt start anymore. I'll have to redo all the tests I was doing but test for camera too. The tablet would just freeze as soon as I opened the camera app
Sent from my Nexus S using Tapatalk
Click to expand...
Click to collapse
My camera does not work either. I just figured it was Clemsyns kernel not the OC. I don't know anything about cameras but maybe they use a lot of voltage so the voltage to the CPU dips.
I never used the camera personally, but I will test it some and see what additional mV you need over stable to get the camera working.
Also I noticed the more you undervolt (it seems to me) the harder it is to undock with an app open. usually instead of reloading they FC or lock the device so i just make sure to hit the home key before I undock then alt tab right back into the app.
Bjd223 said:
My camera does not work either. I just figured it was Clemsyns kernel not the OC. I don't know anything about cameras but maybe they use a lot of voltage so the voltage to the CPU dips.
I never used the camera personally, but I will test it some and see what additional mV you need over stable to get the camera working.
Also I noticed the more you undervolt (it seems to me) the harder it is to undock with an app open. usually instead of reloading they FC or lock the device so i just make sure to hit the home key before I undock then alt tab right back into the app.
Click to expand...
Click to collapse
My camera did not work at 912 MHz at stock voltage on 17b but now on 18 I can do my normal undervolt settings and the camera works fine.

2nd core clock speed

Is there any particular reason the second core always drops down to 216mhz? This happens with any custom kernel I run, currently running moray with electra kernel at 1.5Ghz using pimp my cpy to OC.
ggrammer said:
Is there any particular reason the second core always drops down to 216mhz? This happens with any custom kernel I run, currently running moray with electra kernel at 1.5Ghz using pimp my cpy to OC.
Click to expand...
Click to collapse
when it's needed, it goes to the required frequency...
sounds reasonable but I will notice some lag and stuttering while I am using the xoom, i will open os monitor and the second core is sitting at 216, i move it manually to 1.5Ghz and the tablet is more responsive...
Edit
Sorry I should have been more specific about the situation. When I say the 2nd core drops to 216 I mean the max frequency drops to 216 so the 2nd core does not clock up any higher unless I manually intervene.
same on my xoom with tiamat 2.2.2 and setcpu. i have two profles , screen off with 216-456mhz and other with 216-1200mhz. only the first score is over clocked after switched on, the second stucks at 216-456mhz. i contacted the developer of setcpu someting around 2 weeks a go, but no solution till now.
okay i see wat u mean...i just checked and i'm getting the same results... it sits on the min freq, all laggy, then when i manually set the frequency, it's super responsive like it shud.... i'm over-clocking to 1.6 btw
burgi400 said:
same on my xoom with tiamat 2.2.2 and setcpu. i have two profles , screen off with 216-456mhz and other with 216-1200mhz. only the first score is over clocked after switched on, the second stucks at 216-456mhz. i contacted the developer of setcpu someting around 2 weeks a go, but no solution till now.
Click to expand...
Click to collapse
I don't think that it strictly a SetCPU problem. I also have an Advent Vega and have used SetCPU to overclock it. Had almost the same problem, except both cores were stuck at 216Mhz.
Tried multiple overclocking apps and have had the same problem with all of them. Device fine until it goes into sleep mode, CPU stuck at 216Mhz when brought out of sleep. Even setting the minimum setting to 456Mhz still resulted in the CPU being stuck at 216Mhz on wakeup.
so i guess the big question is whether it is the kernels (I've tried a few) or in the way these apps OC a dualcore processor...It makes me wonder about the OC apps though, they were all built for single core originally and in each of them you only set 1 max and 1 min speed. OS monitor is the only app that displays both cores, at least that I have used, but it doesn't set an OC value at boot. Maybe if one of the smart devs on here could comment maybe even just to shed some light on this
Is there no solution to this issue yet?
Is it a tegra fault/problem?
Is it a Kernel issue?
Would flashing back to a stock kernel fix it? (if that is even possible...)

[What] Hey guys. So I tried undervolting once more and it goes really low.

So my procedure was setting same frequency as min and max and then going -5mv until it reboots. So far no reboots, trying to play it safe, but my voltages are getting really low and I don't know if it's normal or am I just lucky. Here's my table https://docs.google.com/spreadsheets/d/1STY-qMY_pne1cBPNFoQrUPZUamwHSL-T8zqMLVN5lsE/edit?usp=sharing (700 v means it didn't reboot while I played youtube and launched apps, 700 x would mean that it did reboot at 700mv)
Still testing!
EDIT: It crashes if my phone goes a big step in voltage, in example +140 mv (from 770mv at 1497 MHz to 910mv at 1574 MHz)
EDIT: Woah guys! Went to 620mv at 300 MHz, still stable!
EDIT: 600mv at 300MHz. I think I'm going to break a world record with my N5 or something
Fixing the sheet now, some voltages stable when running on mono frequency are stable and while on multi freq, is not. Going to fix that.

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