Serious screen resolution problems

mloc

basically, when the GUI starts up, it runs in a 1280x1024 window, but like zoomed, so that my monitor is actually running at 650x480 and you can pan around the screen with the mouse. This has happened with both Fedora Core 4 and Ubuntu 5.10 (breezy). Can't seem to figure out whats going on. Screen resolution control panel only lists 0hz as available refresh rates as well.

I'm using a Radeon 9700 pro and a dell p991 monitor. Under windows the monitor runs 1280x1024x85hz fine.

Anyone have any idea?

deimos

look in your xorg.conf file

/etc/X11/xorg.conf
or it could be (if using Xfree86)
/etc/X11/XF86Config-4


Near the end of the page you will see data relating to screen resolution etc etc

mloc

I looked through the file earlier, and it did show under the monitor settings that it was capable of displaying a range of vsync and hsync values.

Unfortunately I'm a linux beginner, and the rest of the file didnt mean a whole lot to me. Just various resolutions, but no refresh rates.

djmarkus

Post up your configuration file

mloc

Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor 1280x1024"
DisplaySize 370 270
HorizSync 31.5 - 79.0
VertRefresh 50.0 - 90.0
Option "dpms"
EndSection

Section "Device"
Identifier "Videocard0"
Driver "radeon"
VendorName "Videocard vendor"
BoardName "ATI Radeon 9700 Pro"
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

Section "DRI"
Group 0
Mode 0666
EndSection

There tis the relevent bits

djmarkus

and your monitor runs @ 650x480? very odd, u using 16 bit or 24bit color depth do you know?

mloc

ah, typo there. its 640x480. not really sure to be honest, far as i know its 24bit. using linux at all at the moment is a pain in the ass due to the scrolling.

it's like the whole 1280x1024 screen is magnified and i have to scroll around it. so far, ive had the problem with Ubuntu 5.10 (both installed and running from the live cd), and Fedora Core 4.

djmarkus

SubSection "Display"
Depth 15
Modes "1280x1024" "1280x960" "1280x800" "1152x864" "1280x768" "1024x768" "800x600" "768x576" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1280x1024" "1280x960" "1280x800" "1152x864" "1280x768" "1024x768" "800x600" "768x576" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "1280x1024" "1280x960" "1280x800" "1152x864" "1280x768" "1024x768" "800x600" "768x576" "640x480"
EndSubSection
SubSection "Display"
Depth 32
Modes "1280x1024" "1280x960" "1280x800" "1152x864" "1280x768" "1024x768" "800x600" "768x576" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1280x1024" "1280x960" "1280x800" "1152x864" "1280x768" "1024x768" "800x600" "768x576" "640x480"
EndSubSection


Heres mine, try using these settings, back up first tho!

mloc

nope didnt work. I just tried using a different monitor, and now it works fine. I think it may be because the P911 is not DCC compatible and doesn't auto-detect even under windows.

nadir

ctrl alt +(keypad)
ctrl alt -(keypad)

cycles resolutions supported in xorg.conf

although it looks like you may have set a virtual in there, thats usually what causes that problem, watchout for that ' Viewport 0 0' could be messing things up.