Open up your /etc/X11/xorg.conf file, and find the section labeled "Screen".
You will find one or more subsections labeled "Display" each of which specifies available modes for a given color depth (you may only need the subsection corresponding the the "DefaultDepth" you're using.)
Under each "Display" subsection you wish to keep/have, add the "1280x1024" desired resolution to the beginning of the "Modes" line. I would also include "1024x768" so that you have that available.
Here's a sample of how the "Screen" section of your xorg.conf file should look when you're done:
- Code: Select all
Section "Screen"
Identifier "Default Screen"
Device "ATI Technologies, Inc. RV370 5B60 [Radeon X300 (PCIE)]"
Monitor "DELL E773s"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "1280x1024" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 4
Modes "1280x1024" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1280x1024" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "1280x1024" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1280x1024" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "1280x1024" "1024x768" "800x600" "640x480"
EndSubSection
EndSection
Good luck, and welcome to Debian!