yashsingh1/xdaforums huggingface dataset:
[Atrix 4G Android Development] ChaosMinionX:
I would say that DVFS would be true when applying high levels of voltage to achieve clocks that would normally be ok with less voltage, hence why you would be gaining stability by undervolting.

So by undervolting you are overcoming the DVFS and allowing it to run up to 1600MHz; however the fact of the matter is you are still generating heat, and processors can generate huge amounts of heat in seconds that you would not be able to monitor without having real time monitoring right in front of you, and you simply do not have that on the Atrix while benchmarking. That is why you cannot see the throttling, but it is occuring.

EDIT: It is also something to note that it may be completely independent of DVFS as to why the reboots would happen without undervolting.. Reason being some parts just do not have the electrical characteristics to handle higher voltages (To a normal person, higher voltage should mean more power to run a higher frequency right?) well that is not the case.. some parts can run lower voltages and be stable, and higher voltage causes instability; some like high voltage and lower voltage causes instability; and some are the "cherry" chips of the bunch and they are going to respond to whatever you throw at them, its just luck of the draw with silicon.
[Atrix 4G Android Development] Notorious544d:
Which tweaks if you don't mind saying?

EDIT: Regarding this GPU - CPU thing, I'm interested in seeing the effects of 1.2Ghz with 400mhz GPU...
[Atrix 4G Android Development] :
Honestly I added pretty much all your neutrino build.prop tweaks in the darkside rom and everything seems to effectively work fine. It was that max windows events. It was set to 100 and it was kinda running choppy. So, I took it to 240 and it took care of it. However my battery life is pretty wretched at 240 but I like the added smootness. It makes a big difference on battery life though that's for sure.

@EDIT: Regarding this GPU - CPU thing, I'm interested in seeing the effects of 1.2Ghz with 400mhz GPU...

I'd like to know if that makes the game run stable for him. I had to do the same thing on my asus core i7 laptop before they updated to bios that cools a lot better. I had to downclock the cpu and make the game stable since all the heat from the cpu merges with the gpu and causes the GPU to overheat. So by running the cpu slower and with a nice undervolt. The phone stays cool and can game it up for hours at 1.2Ghz -25mv maybe -50mv.
[Atrix 4G Android Development] morrislee:
I asked Clemsyn to make a 1.5GHz version with 350GHz GPU, I can run games perfectly fine with it for as long as the battery will last? HAHA, but when I use the original 1.5GHz with 400MHz, I crash at almost the same amount of time from the 1.6GHz kernel as to the original 1.5GHz. I think I also tried downclocking to 1GHz with the 400MHz back in the days, but no cookies, still crashs
[Atrix 4G Android Development] jasonyump:
Same thing happens to me. Playing games with the gpu at 400mhz freezes my phone. Got a link to this 350mhz u could share?
[Atrix 4G Android Development] morrislee:
I dont think he will provide any support for this but http://www.tunerspotter.com/clemsyn/Morislee1.5.zip

it is based on 2.6.32.56 at 1.5GHz, 350MHz and cifs+utf-8 supported, rest are probably unchanged from the original
[Atrix 4G Android Development] Notorious544d:
Hmm...

The reason why I'm concerned about the GPU overclock is because in my ROM, the UI is FULLY GPU rendered. This means that overclocking the GPU is more likely to add smoothness than a CPU overclock.

But hmm... maybe we could try a 370mhz-380mhz if 400mhz crashes too much?
[Atrix 4G Android Development] turl1:
Hey clemsyn, I wanted to have a look at what did you do to run at 1.6Ghz, but your source link is broken, can you fix it? :)

BTW, I'd appreciate it a lot if you could post your source on a git repo instead of dropping a tarball, git makes looking at code changes way easier :) if you need a git service, both github and bitbucket will give you enough space to upload a kernel.
[Atrix 4G Android Development] crazililazn:
Can you make a kernel with the same steppings as your previous 1.4 ghz kernel? My matrix can't run the 1.5 kernel very well...
[Atrix 4G Android Development] dragunbayne:
I know for me the 1.6 overclocking bumped up my benchmark scores. I know that some people have achieved the same scores with slower speeds, although I don't understand how.
[Atrix 4G Android Development] sineokiq:
You told that 700mV is the minimum for 216hz so we can't undervolt more. What are the others minimum voltages?

216 - 700mV

(312 -?) for 1.0ghz

456 -?

608 -?

(712 -?) for 1.0ghz

912 -?

1000 -?

(1100 -?) for 1.3ghz

1200 -?

(1300 -?) for 1.3ghz

1400 -?

(1500 -?) for 1.5ghz

(1600 -?) for 1.6ghz

(312 -?) for 1.0ghz

456 -?

608 -?

(712 -?) for 1.0ghz

912 -?

1000 -?

(1100 -?) for 1.3ghz

1200 -?

(1300 -?) for 1.3ghz

1400 -?

(1500 -?) for 1.5ghz

(1600 -?) for 1.6ghz
[Atrix 4G Android Development] ghost_og:
If 700mV is the low end limit for his kernel at 216mhz, then that will be the lower limit for all frequencies. The cpcap regulator has a table of voltage values which are available for all frequencies. Stability testing will let you know how close to 700mV each frequency can get.

It's the max voltage that gets limited between frequencies.

(Btw, links are for faux's kernel, so the values might be a different, but you get the idea.)
[Atrix 4G Android Development] crazililazn:
CPU keeps scaling up past 1.2 ghz even tho that is the limit i set in system tuner. Anyone else noticing this?
[Atrix 4G Android Development] crossxn:
^^^yes the issue is already reported 2 pages back. Underclocking does not work properly.
[Atrix 4G Android Development] :
Yeah so I think there are only a few frequencies that'll lock down on the 1.5 ATT kernel. Like 608 will lock down, 912 will not, 1Ghz will lock down, and anything above 1Ghz will not lock. It will auto scale to 1.5Ghz which is pretty annoying but fine at the same time. I also seem to be getting great battery life while screen is off locked at 216Mhz with a -200mv rather than -250mv. According to nvidia specifications 100mv steps is ideal. I do have a -25mv across the board while running and it's totally stable. I mean I can barely keep 1.4-1.5Ghz stable while gaming. My otterbox defender makes the phone heat up so I take it out when gaming. I run a 1.2Ghz max stable while gaming for hours with a -25mv uv.
[Atrix 4G Android Development] ssmr2t:
It says cyano but doesnt say anything about which version. I assume this means we can flash on any CM build? CM9 more particularly? :D
[Atrix 4G Android Development] :
400Mhz is totally stable. What's unstable is the darn CPU. It runs up to 89C at 1.5Ghz with no undervolt. It can run stable with a -25mv and roll up to 85-86C. If I back the cpu down to 1Ghz it's completely stable for no joke I played for 8 hours on it and it ran stable. You never wanna game on a huge overclock since the phone isn't that well engineered for cooling. However I could see some nice gains for games at 425Mhz. I could guarantee the people having stability issues, is because they're over heating because of too much cpu clock for their application. Increasing the gpu clock has a huge effect on increased fps on 1080p hw decode with reduced cpu clock. Also most games don't benefit from the additional cpu clock. However they love gpu clock to pump out the frames a little quicker.

I'd totally give a 425Mhz gpu core clock a shot as well as dialing in the kernel to actually lock all frequencies in pimpmycpu. You know what I mean? Only a couple frequencies will lock.

THANKS cya buddy
[Atrix 4G Android Development] Obartuckc:
Any chance of a 350Hz version of the 1.6 kernel??

~ Sent from My Unlocked, Rooted, Neutrino's 2.2 GT+ CM7 ROM-ed Atrix 4G ~
[Atrix 4G Android Development] -JFK-:
Hi,

Does anyone have fix the underclocking problem with system tuner?

It doesn't lock the CPU speed at the selected frequency.

Thank you.

-JFK-
[Atrix 4G Android Development] :
Not yet, u can use 608Mhz or 1000Mhz, or 1500mhz and that's it.

later
[Atrix 4G Android Development] Alcapone263:
Cm7 kernels will most likely not work with CM9, when I tried I got a device that would boot, but nothing worked. Not even the touchscreen
[Atrix 4G Android Development] :
Actually no clocks lock. No matter what it'll roll up to 1500Mhz. I don't know if it's pimp my cpu issue or what but nothing affects it. Sometimes it won't go past 1000Mhz but any heavy load will auto over-ride.

later
[Atrix 4G Android Development] Punkrocknerd:
flashed the 1.6 ghz kernal and i have had nothing but issues for the past 5 min. it freezea and reboots consistantly. using neutrino ee, which is a cm7 based rom

edit:flashing the 1.5 ghz cm kernal to see if it works any better and nothing but issues, this was a waste of time
[Atrix 4G Android Development] dragunbayne:
Not all phones will work with these kernels as mentioned in the OP. You never know without trying though. It is certainly worth the time to try in my opinion, as these are great kernels.
[Atrix 4G Android Development] greenwitch:
My phone reboot even on antutu benchmark, could you tell me with what program I can adjust voltage level.

The fastest stable is Faux 1,45, but i would like to try something faster. I use wet dream rom.

Maybe it is the reason of two fast GPU, can any body prepare version with lower GPU clock?

Adam
[Atrix 4G Android Development] dragunbayne:
For adjusting voltage, use setcpu or system tuner. They are both great apps.
[Atrix 4G Android Development] Scoop3:
Any word on a clock lock fix? I'm stunning the 1.6kernel and love it.. would be nice to throttle it down a bit to prevent overheating :)

Sent from my spacefone
[Atrix 4G Android Development] njarun:
i think most atrix won't support this kernel. i think they will support if the GPU/AVP/RAM is UVed a little.

Im facing random reboot issue. Does anyone succeeded in UV this kernel? What are the possible stable values?

---------- Post added at 06:14 PM ---------- Previous post was at 06:12 PM ----------

did you try undervolting??
[Atrix 4G Android Development] :
So, I'm guessing your running the darkside or some blur based rom. So I'd guess your talking about the 1.5Ghz ATT kernel. Yeah that's pretty damn unstable because of heat. Make sure your phone is completely bare with no case when running 1.4-1.6Ghz continuously. The phone is engineered to dissipate when it's bare. I have been able to run stable at -25mv on the 1.4-1.5Ghz kernel's. I have not played with the 1.6 and cyano yet this I like webtop and hdmi audio.

Try -25mv and nothing less seriously. On a daily I'de run -25mv across the board for maximum stability. Then I'd roll with a -250mv on an off screen lock at 216 min 216 max frequency.

Later

---------- Post added at 10:03 AM ---------- Previous post was at 09:56 AM ----------

It's not because of the gpu. It's because the cortex a9 is over heating with your case on. You need the phone to be completely bare with no adhesive base screen blocker. The entire phones surface needs to be bare to ambient temperature. You can run stable at 1.5Ghz. Use a max -25mv and keep the phone bare and it'll roll through the benchmark time and time again. Hell removing the back battery cover can achieve a little more stability and a tiny amount of reduction in loaded temps.

Just to let you know. It's kind of cheating but not very many people know setting your minimum to 1.5Ghz and your maximum to 1.5Ghz. You can obtain a higher score. Same applies to computers.

later bro
[Atrix 4G Android Development] morrislee:
Every chip ain't created equal, he might have the possibility of a lower quality of GPU core. Mine ran 1.5GHz fine with GPU at 350MHz(custom kernel requested and built by clemsyn), even if I downclock to 1.0GHz for GPU at 400MHz, I crash after a few minutes in intensive 3D apps.

Making the phone "bare" is just to help heat dissipation, and it is never "engineered to dissipate when it's bare", that statement is not entirely true. it is engineered to be running at 1GHz, WITH the case on. Removing the case simply assists the heat dissipation.

Further more, even the tablet with first revision of tegra 2, they run at 333MHz, only until the AP25 and T25 was revised to be able to run at 400GHz GPU stable.

Moving on to CPU, not everyone can be sure to achieve 1.5GHz. Same rule applies like from GPU.

It is all about the quality of the chip you got, if you got lucky or not.
[Atrix 4G Android Development] njarun:
yea thats what i said. most device will support this kernel if the gpu/avp/ram oc is adjusted. can u upload the personalized kernel and share the link. i belive clemsyn will never mind, after all its his masterpiece.....

thanks...
[Atrix 4G Android Development] :
Yeah, We are at the pinnacle of performance right now on the tegra 2 chips. I like the 1.4Ghz-400mhz gpu kernel and it's super stable. I lock it at 1Ghz. It takes a couple tries but it works in the end. Plus it's way cooler in temps than the 1.5Ghz kernel. One thing I feel needs to be addressed. Is dialing in the free memory. We have 1,024MB of LPDDR2. What's the difference between lpddr2 and ddr2? Anyway I had a reported 10MB free after doing absolutely nothing. Phone idled for 30 minutes and I have 10MB free out of 800MB+ available. The phone actually lagged out a little. I know it's being cached but caching every last bit doesn't help performance. It kills it. I installed auto killer and forced all fields the maximum available of 390MB. So now my phone never goes under 300MB free. Let me tell you, the phone feels way faster. Especially in game.

What I want to know is how to dial in a little more available than 390MB. I'd say 500MB would be fine. What's this 390MB limit in Autokiller? Anyone know of an app that will allow you to go beyond 390MB?

Thanks
[Atrix 4G Android Development] morrislee:
http://www.tunerspotter.com/clemsyn/Morislee1.5.zip

I posted it a while back, but here
[Atrix 4G Android Development] Scoop3:
I'm running neutrino 2.2 I don't actually have any stability problems unless I'm playing gta haha or on occasion some rogue app will freak out and I don't notice my fone is on fire until I see it reboot...

This combo is pretty *****in. I just wouldn't mind scaling it down a bit... I like having the power at my disposal... don't wanna give that up, just want some control :)

Edit: I'm also -25 across the board

Sent from my spacefone
[Atrix 4G Android Development] SirFork:
Any chance of porting this kernel to CM9?
[Atrix 4G Android Development] Obartuckc:
Would it be possible to get a new GB version of this 1.5 kernel??

~ Sent from My Unlocked, Rooted, Faux 1.45 gHz, Neutrino's 2.2 GT+ CM7 ROM-ed Atrix 4G ~
[Atrix 4G Android Development] :
I have my min and max set to 1.6Ghz. Widgetsoid detects 1.6Ghz but setcpu sees 1.5Ghz. I'm running pretty cool at 78-82C or so. Seems to be stable with -25mv. On the 1.6Ghz kernel the governor doesn't work at all. Most other kernels don't have an active functioning governor. The clock choice has a mind of it's own. Nothing I do changes it. It seems to love being at maximum clock 99% of the time no matter what I do.

Actually antutu crashed so it's not even stable. It doesn't actually operate at 1.6Ghz, at least I don't think. I'm confident to say it's only pulling 1.5Ghz since I can't even compare a benchmark since it's so unstable.

later
[Atrix 4G Android Development] Scoop3:
Maybe try setting your min to 216 or whatever the min is... it seems (maybe it was a type-o) that you've got it fully pegged all the time, which could cause instability I would think.

Also try using system tuner pro as recommended by the OP. My fone is really stable, even when uv'd decently. Maybe setcpu doesn't like this kernel?

Sent from my spacefone
[Atrix 4G Android Development] morrislee:
It is actually based on the new faux 2.6.32.56, I dont think there is anything newer than that
[Atrix 4G Android Development] :
So I'm back to faux 1.45ghz on Morris's Neutrino Build. Governors work great. Excellent stability. Pretty horrible battery life. I might run the stock kernel honestly my battery life is terrible. Maybe I need to re-calibrate but I lose 10% in 10 minutes while in a call. I'm running the new 1.87.00R ATT USA radio which I like a lot. I just wanna get a new phone. I'm getting sick of the atrix. I might save up and buy a Samsung Galaxy Note. Doesn't that phone blow your mind? I wish they had a phone which had a tiny joystick on the left side of the phone and xbox 360 4 button style layout on the right. So we don't have to use the touch screen to play games.

I also wish there was a phone with dual micro sd mounts on the phone so I could run 2 32gb class 10's in a raid 0. LMAO! that might be far fetched but 20MB/s+ write continuous would kick ass. It would also be cool to have a microphone input and a stereo output jack for professional recording. Can you do that on the atrix? you know how the ear buds with the microphone has that extra nub on the 3.5mm jack? I've seen dongles with a microphone plug and stereo plug so u can plug in a microphone and speakers at the same time so u can playback the microphone over your speakers?

THANKS
[Atrix 4G Android Development] Maringer:
I think that hoping for decent battery life when overclocking your phone's CPU by almost 50% is perhaps a little too much to expect!

That said, in the past I've found that the radio used seems to influence battery life more than other factors. If you are using the new radio, you may get better reception/download speeds but with a corresponding hit to your battery life.

The best thing I did to improve my battery life was buy Autostarts to stop various rarely-used apps starting on boot. Some of these obviously cause bad battery drain - facebook app, I'm looking at you!

I've heard good things about the 1.77.37 radio but haven't tried it yet. I'm based in the UK so have stuck with the 01.100.00R radio for the moment.
[Atrix 4G Android Development] :
1.87.00R seems to be running cooler than all other radios for me. I ran 1.77.30, 1.100.00R, and 1.97.00R. I'm running the 1.6 kernel and system tuner. Seems to work a lot better than pimp my cpu. No way of know the clock though... Ok well looks like the limit doesn't work on system tuner either it's stuck with both cores on all the time and rolling up to 1.6Ghz. How do u see it in the notification bar?
[Atrix 4G Android Development] Scoop3:
System tuner pro has similar functionality built in as well.

After finally getting my ish tweaked properly , I'm at 16hrs of use w/ %60 battery remaining... granted it charged for about 30 Mins twice to and from work while using car home ultra, but I'm pretty satisfied :)

Sent from my spacefone
[Atrix 4G Android Development] greenwitch:
Hello Guys,

I am running Nottachtrix 1.2.2 and flashed clemsys kernal to benchmark and please look at my results:

I had to go down with Voltage to

216 700

608 700

912 875

1000 950

1100 1050

1300 1250

1500 1325

Results:

when minimum and maximum are configured for default value: 6978 and when minimum is 1500 - 6967, so worse:-)

Next I will try to use supercharge scripts and see what happens!

Supercharge is useless for me. Results are worse by 200 points...

After reinstalling rom I have finally reached over 7000 - exactly 7014 :D

Adam
[Atrix 4G Android Development] :
I found out how to get the governor to work and limit your max clock. By the way I don't think core #2 goes online when at 1.6Ghz. It can only activate 1 core since with System Tuner Pro when I force both cores online it overheats very quickly. I think at 1.4Ghz possibly 2 cores go online when under load and may be able to maintain stability. I also found out that Antutu doesn't benefit from an additional core. Since I forced both cores online, I actually got a lower score than when only 1 core is active. This is typical throttling of over heating.

Ok, So find your min and max clock, set interactive. Powersave cannot be manipulated so select interactive. If you have 1.4.5 pro you can actually set up your governor and thresholds for up clock and down clock. Anyway after you select your min and max clock go to boot settings. Then set to re apply cpu settings at boot. Then disable it. When you do that it activates your clock limit. I would disable it since we are not sure if it's stable in case of a lock up. It's cool and it actually will never go above the desired clock.

First go to boot settings and re apply cpu settings at boot on boot completed. Then go back to the cpu settings. Set your min/max then select interactive. Then go to boot settings and governor behavior. Go to interactive and set up threshold to 5. I've seen really great temps and results with those settings. I'm also running a -50mv across the board and passed antutu with 1 core active at 1.6Ghz.

Can someone explain what a lower and higher threshold does? From testing lower keeps it at a lower frequency more often. Higher keeps you higher more often.

1.6Ghz 1 core active

I hope you guy's enjoyed my above solution.
[Atrix 4G Android Development] manrock111:
Can I flash this on gingermod 9?
[Atrix 4G Android Development] Savant:
Read the op and as long as its blur or cyanogenmod you can. Just pick the appropriate one.
[Atrix 4G Android Development] Notorious544d:
Which kernel

I want to know people's opinions.

Latest Clemsyn kernel vs Latest Faux123's kernel.

Please explain why as well. This will be very important for me.

Thanks in advance.
[Atrix 4G Android Development] crazililazn:
Faux latest kernel. Clemsyn's latest kernel has issues with locking the max clock speed at lower speeds, and since his latest kernel only comes in variants of 1.5 and 1.6 ghz, there will be a lot of people with stability issues.