Disabling NVidia Powermizer

[mrphd]

In intrepid I was able to disable the nvidia powermizer by adding:

options nvidia NVreg_RegistryDwords="PerfLevelSrc=0x2222"

to the file, /etc/modprobe.d/options

I did this because I was getting black screen flashes whenever powermizer changed performance levels.

In jaunty RC this options file does not exist. Does anyone know how i can impose this setting, as the black flashes are driving me crazy!...

thanks,

[SketchyClown]

If you are using a laptop you might find this thread useful:

http://ubuntuforums.org/showthread.php?t=828369

This little tutorial allows you to set the Power Mizer to always be at Level 3 430/400 Mhz when the computer is on AC power, but reverts back to auto when on battery.

Works flawlessly on my laptop with 9600M.

[pferraro]

If you are using a laptop you might find this thread useful:

http://ubuntuforums.org/showthread.php?t=828369

This little tutorial allows you to set the Power Mizer to always be at Level 3 430/400 Mhz when the computer is on AC power, but reverts back to auto when on battery.

Works flawlessly on my laptop with 9600M.

This is a bit hacky IMO. It works by leveraging a quirky nvidia-settings behavior that forces the gpu to full power for several seconds when nvidia-settings is loaded. Ideally you shouldn't have to burden your cpu with unnecessary load in this way. Here's what's worked for me (using the latest 185.19 beta):

Add the following option to your xorg.conf file under the device section:

Option "RegistryDwords" "PowerMizerEnable=0x1; PerfLevelSrc=0x3322; PowerMizerDefaultAC=0x1"

This places the gpu in max perf mode when on AC, and reverts to gpu scaling on battery.

[SketchyClown]

This is a bit hacky IMO. It works by leveraging a quirky nvidia-settings behavior that forces the gpu to full power for several seconds when nvidia-settings is loaded. Ideally you shouldn't have to burden your cpu with unnecessary load in this way. Here's what's worked for me (using the latest 185.19 beta):

Add the following option to your xorg.conf file under the device section:

Option "RegistryDwords" "PowerMizerEnable=0x1; PerfLevelSrc=0x3322; PowerMizerDefaultAC=0x1"

This places the gpu in max perf mode when on AC, and reverts to gpu scaling on battery.

Sounds like your offer does exactly the same thing. Except with a different approach.

The end result seems exactly the same.

EDIT: I've tested pferraro's option and confirm it works. The end result is exactly the same as the tutorial. GPU temps are fine. I have removed the hack from the tutorial and decided to leave the xorg hack in place.

[pelle.k]

I recommend you read this. the web page does a good job at explaning what the options actually do.
http://tutanhamon.com.ua/technovodst...A-UNIX-driver/
A couple of examples;

* on battery - max power saving, on AC - max performance

"PowerMizerEnable=0x1; PerfLevelSrc=0x2222; PowerMizerDefault=0x3; PowerMizerDefaultAC=0x1"

* on battery - max power saving, on AC - adaptive strategy (my favorite)

"PowerMizerEnable=0x1; PerfLevelSrc=0x2233; PowerMizerDefault=0x3"

* on battery - adaptive strategy, on AC - max performance

"PowerMizerEnable=0x1; PerfLevelSrc=0x3322; PowerMizerDefaultAC=0x1"

* adaptive strategy for any power source

"PowerMizerEnable=0x1; PerfLevelSrc=0x3333"

Every number apart from PerfLevelSrc= are specific to your GPU though, so dont copy the exmaples verbatim and expect it to work, but read the link i provided.