Issues related to screen resolution, video driver

· Linux
Authors

One often encounters problems related to choice of video driver when installing Debian. You often find that you cannot set the screen resolutions to your taste.

To correct these problems, you need to edit the XF86Config-4 file. On my system this file resides in /etc/X11.

For most recent intel motherboards (including 865 and 915), the video driver should be i810.

See the following from my XF86Config-4 file.

************************
Section “Device”
Identifier “Generic Video Card”
Driver “i810”
EndSection
************************

The second thing you need to set is the specification of your monitor. In particular, set the Horizontal and Vertical refresh rates correctly.

Here is the relevant section from my file.

*************************
Section “Monitor”
Identifier “PHILIPS 107T5PHL”
HorizSync 28-70
VertRefresh 43-160
Option “DPMS”
EndSection
*************************

Finally, you need to specify the resolutions that should be available. The relevant section of my file is as follows.

*************************
Section “Screen”
Identifier “Default Screen”
Device “Generic Video Card”
Monitor “PHILIPS 107T5PHL”
DefaultDepth 24
SubSection “Display”
Depth 1
Modes “1024×768” “800×600” “640×480”
EndSubSection
SubSection “Display”
Depth 4
Modes “1024×768” “800×600” “640×480”
EndSubSection
SubSection “Display”
Depth 8
Modes “1024×768” “800×600” “640×480”
EndSubSection
SubSection “Display”
Depth 15
Modes “1024×768” “800×600” “640×480”
EndSubSection
SubSection “Display”
Depth 16
Modes “1024×768” “800×600” “640×480”
EndSubSection
SubSection “Display”
Depth 24
Modes “1024×768” “800×600” “640×480”
EndSubSection
EndSection
************************

This is it. With this my video driver settings started working perfectly well.

V.

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