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Old 05-26-11, 07:10 AM   #1
Cyborg16
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Join Date: Jan 2006
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Default ACPI power state detection (PowerMizer)

I have a question: how does the nvidia driver detect power state changes?

The following always lists 0 (AC power); any ideas what might be wrong?
Code:
nvidia-settings -q GPUPowerSource -t
(I'm running debian wheezy on a lenovo T410.)
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Old 06-08-11, 05:15 AM   #2
Cyborg16
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Default GNUPowerSource

OK, so I've found out that the power source does get updated, but not for perhaps 10-30 minutes. I've attached an nvidia-bug-report, but it's too big when compressed with gzip or bzip2 to be accepted, so it's lzma compressed (rename, then unlzma should restore it to a text file).

More information on this problem: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629418

Someone else with the same symptoms, albeit a rather older driver version (185): http://www.nvnews.net/vbulletin/showthread.php?t=133555
Attached Files
File Type: log nvidia-bug-report.log.lzma.log (81.8 KB, 60 views)
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Old 06-08-11, 08:04 AM   #3
alexmurray
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Default Re: ACPI power state detection (PowerMizer)

Updates instantly for me (Ubuntu Natty 11.04, NVIDIA Driver version 270.41.06, on MacBook Pro 5,1 - 9600M GT)
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