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Old 05-09-06, 10:34 PM   #1
djsherly
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Join Date: May 2006
Posts: 2
Default FC5 - 8756 - Ae-700 Projector

Coming from a PAL country, and running mythtv, I'd very much like to run my FX-5200 via DVI at 50Hz @ 1280x720.

If I use EDID information in the driver and specify 1280*720, then I get that resolution, but at 60Hz. This is not an ideal situation.

In the xorg.conf file, I set up a custom modeline in in the monitor section, ignored EDIDs and told the screen to use my modeline, but I end up with 800x600. It's really annoying. Can any of you provide insight? Have I missed something exceedingly obvious here?

Code:
(**) NVIDIA(0): Ignoring EDIDs
(II) NVIDIA(0): Not probing EDID on CRT-0.
(II) NVIDIA(0): Not probing EDID on DFP-0.
(II) NVIDIA(0): NVIDIA GPU GeForce FX 5200 at PCI:1:0:0
(--) NVIDIA(0): VideoRAM: 131072 kBytes
(--) NVIDIA(0): VideoBIOS: 04.34.20.87.00
(II) NVIDIA(0): Detected AGP rate: 4X
(--) NVIDIA(0): Interlaced video modes are supported on this GPU
(--) NVIDIA(0): Connected display device(s) on GeForce FX 5200 at PCI:1:0:0:
(--) NVIDIA(0): CRT-0
(--) NVIDIA(0): DFP-0
(--) NVIDIA(0): CRT-0: 350 MHz maximum pixel clock
(--) NVIDIA(0): DFP-0: 135 MHz maximum pixel clock
(--) NVIDIA(0): DFP-0: Internal Single Link TMDS
(II) NVIDIA(0): Option "UseDisplayDevice" "DFP" converted to "DFP-0".
(II) NVIDIA(0): Assigned Display Device: DFP-0
(WW) NVIDIA(0): No valid modes for "1280x720_test"; 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 800 x 600
(WW) NVIDIA(0): Unable to get display device DFP-0's EDID; cannot compute DPI
(WW) NVIDIA(0): from EDID.
(==) NVIDIA(0): DPI set to (75, 75); computed from built-in default
(--) Depth 24 pixmap format is 32 bpp
Here's the definition of 1280x720_test from my xorg.conf:
Code:
Section "Monitor"

### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
Identifier "Monitor0"
VendorName "Panasonic Projector"
ModelName "COMPAQ S710"
### Comment all HorizSync and VertSync values to use DDC:
HorizSync 45
VertRefresh 50.0
Option "dpms"
ModeLine "1280x720_test" 74.300 1280 1728 1768 1984 720 725 730 750
EndSection
.
.
.
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
# SubSection "Display"
# Viewport 0 0
# Depth 16
# Modes "800x600" "640x480"
# EndSubSection
SubSection "Display"
Depth 24
#Modes "1280x800"
 Modes "1280x720_test"
EndSubSection
EndSection
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Old 05-09-06, 10:55 PM   #2
netllama
NVIDIA Corporation
 
Join Date: Dec 2004
Posts: 8,763
Default Re: FC5 - 8756 - Ae-700 Projector

Please start X with the following command:
startx -- -logverbose 5

and then generate and post an nvidia-bug-report.log.

Thanks,
Lonni
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Old 05-10-06, 04:42 PM   #3
djsherly
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Join Date: May 2006
Posts: 2
Default Re: FC5 - 8756 - Ae-700 Projector

After running it with the verbose logging I discovered what the problem was - the horizsync setting was far too restrictive. I've fixed it now. Also used UseExactDVItimings (or similar) option.

I now have 50Hz @ 1280*720.
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