[mjkelly]

On my dual boot OS windows XP, i can get perfect resolutions way higher than 1600x1200 regardless of what these monitor specs say. Id like to do 1600x1200 on my FC4 system. When i try to set it past 1280x1024 i get a black screen with an error from the monitor saying it cant support the rates 74.9 and 60. Can anyone help me here?


I have a proview 766b monitor.
Its specs are: "VGA up to 1280x1024 @ 75hz."
Horizontal Freq: 30-80kHz Vert Freq: 50-75Hz
http://www.proview.net/pdfs/pl766s.pdf

My Video card is an ATI Radeon 9250, that was detected as a 9200 Radeon Pro Series.

My xorg.conf is:

Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Proview 770"
HorizSync 30.0 - 80.0
VertRefresh 50.0 - 75.0
Option "dpms"
EndSection

Section "Device"
Identifier "Videocard0"
Driver "radeon"
VendorName "Videocard vendor"
BoardName "ATI Radeon 9200PRO"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 16
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024" "1152x864" "1152x768" "1024x768" "800x600" "640x480"
EndSubSection
EndSection

[dylunio]

Originally Posted by mjkelly

Section "Display"
Viewport 0 0
Depth 24
Modes "1280x1024" "1152x864" "1152x768" "1024x768" "800x600" "640x480"
EndSubSection

You should try and add "1600x1200" to that line and try to change the resolution again.

[mjkelly]

When i try to set it past 1280x1024 i get a black screen with an error from the monitor saying it cant support the rates 74.9 and 60. Can anyone help me here?

I tried that. I tried setting it to 1600x1200 from the gnome display settings GUI box and that wrote it to xorg.conf. But in case that didnt work i added it there myself. I get a black screen from my monitor with a red box that says mode not supported 74.9 X 59.6. First those rates are fine with my monitor. 2nd Ive had the res up over 2000 on windows and it works fine, so i know its NOT a hardware problem.

[Tux42]

Maybe try updating your AIT drivers
https://support.ati.com/ics/support/...ge&folderID=27

The ATI linux drivers are as nice as the NVidia ones, but they should work.

Hope it works for you.

later

Tux42