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Old 04-24-10, 04:08 PM   #5
zander
NVIDIA Corporation
 
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Join Date: Aug 2002
Posts: 3,740
Default Re: Cannot set correct resolution on GeForce FX5600 in Ubuntu 10.04 on CRT monitor

From the log file:
(...)
(--) NVIDIA(0): Connected display device(s) on GeForce FX 5600 at PCI:1:0:0:
(--) NVIDIA(0): CRT-0
(--) NVIDIA(0): CRT-1
(--) NVIDIA(0): CRT-0: 400.0 MHz maximum pixel clock
(--) NVIDIA(0): CRT-1: 400.0 MHz maximum pixel clock
(II) NVIDIA(0): Assigned Display Device: CRT-0
(WW) NVIDIA(0): No valid modes for "1280x1024_75.00"; removing.
(WW) NVIDIA(0):
(WW) NVIDIA(0): Unable to validate any modes; falling back to the default mode
(WW) NVIDIA(0): "nvidia-auto-select".
(WW) NVIDIA(0):
(II) NVIDIA(0): Validated modes:
(II) NVIDIA(0): "nvidia-auto-select"
(II) NVIDIA(0): Virtual screen size determined to be 640 x 480
(WW) NVIDIA(0): Unable to get display device CRT-0's EDID; cannot compute DPI
(WW) NVIDIA(0): from CRT-0's EDID.
(==) NVIDIA(0): DPI set to (75, 75); computed from built-in default
(...)
Your CRT does not appear to provide an EDID, which forces the driver to fall back to a very conservative mode. You can get around this by specifying the monitor's refresh ranges in the associated Monitor section of your X configuration file.
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