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

[Andreas Beckmann]

On 2011-06-07 21:20, Diggory Hardy wrote:
> The nvidia-packaged nvidia-settings has the exact same output, as you
> expected (also when querying GPUCurrentPerfLevel and GPUCurrentClockFreqs).

OK.

> I was surprised earlier to find "nvidia-settings -q GPUPowerSource -t" did
> list the computer as being on battery power. This was after resuming from
> standby on battery power. After plugging it back in to a power source, it
> didn't immediately say the laptop had changed to AC power, but coming back
> perhaps half an hour later it did, so it appears it *is* detecting changes
> in power source, but not for several minutes at least (when tested on
> openSUSE it was immediate).

I don't know what NVIDIA uses to get the power information ...
eventually some delayed ACPI reaction?

>> 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

I'm sorry but I have no idea how to help with this problem.
You might consider bugging NVIDIA about it, but don't expect a reaction:
http://www.nvnews.net/vbulletin/showthread.php?t=46678

Andreas