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Old 10-09-07, 06:28 PM   #1
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Join Date: May 2005
Posts: 39
Default Hotkey switching on T61

I am using a T61 with Quadro NVS 140M. I was going through my Xorg log file, and I noticed the following lines
(WW) NVIDIA(0): Error: Unable to find DOS (Enable/Disable output switching)
(WW) NVIDIA(0): file path under /proc/acpi/video. NVIDIA X driver will not
(WW) NVIDIA(0): be able to respond to display change hotkey events.
and sure enough I realized that the hotkey switching does not work on this machine.

Looking under /proc/acpi/video, I noticed that DOS is present in the directory, but the nvidia driver is unable to locate it:
~> cat /proc/acpi/video/VID/DOS                                           <root
DOS setting: <1>
However the driver is receiving the ACPI events as can be verified from the log file.

Is there some way to allow the driver to know where the file resides, so that it can enable hotkey switching?

I tried connecting another monitor and I was able to open nvidia-settings and dynamically enable Twinview from nvidia-settings. The corresponding bug report generated by nvidia-bug-report.sh is attached.
Attached Files
File Type: bz2 nvidia-bug-report.log.bz2 (22.7 KB, 83 views)
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