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Old 08-29-06, 07:46 PM   #1
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Join Date: Aug 2006
Posts: 2
Default No valid modes for "1024x768_100" - how to fix ?

I have installed driver from here http://www.nvnews.net/vbulletin/showthread.php?t=75601
I have also tried this one which can be chosen from the main site (nvidia.com)

I cannot set refresh rate to 100Hz - it is always 85Hz
If I try I have this error in Xorg.0.log:

(II) Setting vga for screen 0.
(**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
(==) NVIDIA(0): RGB weight 888
(==) NVIDIA(0): Default visual is TrueColor
(==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
(**) NVIDIA(0): Enabling RENDER acceleration
(II) NVIDIA(0): NVIDIA GPU GeForce3 Ti 200 at PCI:2:0:0
(--) NVIDIA(0): VideoRAM: 65536 kBytes
(--) NVIDIA(0): VideoBIOS:
(II) NVIDIA(0): Detected AGP rate: 4X
(--) NVIDIA(0): Interlaced video modes are not supported on this GPU
(--) NVIDIA(0): Connected display device(s) on GeForce3 Ti 200 at PCI:2:0:0:
(--) NVIDIA(0): NEC FE791SB (CRT-0)
(--) NVIDIA(0): Philips 7102 TV Encoder (TV-0)
(--) NVIDIA(0): NEC FE791SB (CRT-0): 350.0 MHz maximum pixel clock
(--) NVIDIA(0): Philips 7102 TV Encoder (TV-0): 165.0 MHz maximum pixel clock
(--) NVIDIA(0): TV encoder: Philips 7102
(II) NVIDIA(0): Assigned Display Device: CRT-0
(WW) NVIDIA(0): No valid modes for "1024x768_100"; removing.
(II) NVIDIA(0): Validated modes:
(II) NVIDIA(0): "1024x768_85"
(II) NVIDIA(0): "800x600"
(II) NVIDIA(0): "640x480"
(II) NVIDIA(0): Virtual screen size determined to be 1024 x 768
(--) NVIDIA(0): DPI set to (98, 108); computed from "UseEdidDpi" X config option
(--) Depth 24 pixmap format is 32 bpp
(II) do I need RAC? No, I don't.

Configuration in xorg.conf:

Section "Monitor"

Identifier "My Monitor"
HorizSync 81.5
VertRefresh 100.3

Section "Device"

#VideoRam 4096
# Insert Clocks lines here if appropriate
Identifier "VESA Framebuffer"
Driver "nvidia"

Section "Screen"
Identifier "Screen 1"
Device "VESA Framebuffer"
Monitor "My Monitor"
DefaultDepth 24
SubSection "Display"
Depth 8
Modes "1024x768" "800x600" "640x480"
SubSection "Display"
Depth 16
Modes "1024x768" "800x600" "640x480"
SubSection "Display"
Depth 24
Modes "1024x768_100" "1024x768_85" "800x600" "640x480"
SubSection "Display"
Depth 32
Modes "1024x768" "800x600" "640x480"

I tried this: startx -- -logverbose 5 and this is a log file:
Attached Files
File Type: zip nvidia-bug-report.log.zip (22.9 KB, 148 views)
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Old 08-29-06, 08:28 PM   #2
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Join Date: Apr 2006
Location: Poland, Warsaw
Posts: 203
Default Re: No valid modes for "1024x768_100" - how to fix ?

You need to add corresponding modeline into Monitor Section.

It looks like this:

ModeLine "1024x768_120" 162.7 1024 1088 1376 1488 768 771 785 816

There are lot of modeline generators on google.com
mandriva > all
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Old 08-30-06, 05:25 AM   #3
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Default Re: No valid modes for "1024x768_100" - how to fix ?

Thank you a lot it helps
I typed this in command line:
gtf 1024 768 100

And it returned me this:

# 1024x768 @ 100.00 Hz (GTF) hsync: 81.40 kHz; pclk: 113.31 MHz
Modeline "1024x768_100.00" 113.31 1024 1096 1208 1392 768 769 772 814 -HSync +Vsync

And I put this to xorg.conf in Section "Monitor"
Modeline "1024x768_100" 113.31 1024 1096 1208 1392 768 769 772 814 -HSync +Vsync

and I have 100 Hz

Thanks a lot again !
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