Bug#629418: nvidia-glx: PowerMizer doesn't detect change in power source

[Andreas Beckmann]

On 2011-06-06 16:16, Diggory Hardy wrote:
> Package: nvidia-glx
> Version: 270.41.19-1
> Severity: normal
> 
> I have set up nvidia's PowerMizer to use different profiles on mains
> and battery power as documented at
> http://tutanhamon.com.a/technovodstvo/NVIDIA-UNIX-driver/ , however
incorrect URL

> according to nvidia-settings the laptop is always on mains power, even
> when it's actually running off the battery:
> 
>> $ nvidia-settings -q GPUPowerSource -t
>> 0

I get the same result on my laptop using 270.41.06 driver and several
versions of nvidia-settings. But I never looked at this before, so I
can't say whether this was working with older releases.
Eventually a driver problem.

> I noticed that OpenSUSE running on the same laptop detects the power
> source correctly, so might this have something to do withpackaging?

I don't think so. But as the nvidia-settings package is built from free
source code, you might want to try the binary built by nvidia. Download
the driver *.run file from
ftp://download.nvidia.com/XFree86/Linux-x86_64/ to a temporary directory
and run it with the --extract-only command line option so that it does
not start the installer. The nvidia-settings binary can be found in the
root of the tree that is being extracted. Switch to that directory and run
    ./nvidia-settings -q GPUPowerSource -t

> Looks like I have 260.19.44 installed on openSUSE and 270.41.19 on
> this debian system.

Downgrading to 260.xx does not work due to missing support for Xorg
1.10, but eventually you could try the newer driver from experimental
(275.xx) and see if this was fixed.

A quick search in the NVIDIA forum found the following threads:
http://www.nvnews.net/vbulletin/showthread.php?t=133555
http://www.nvnews.net/vbulletin/showthread.php?t=136245


Andreas