Cannot change resolution in XFree86-4 to >640x480; See only a part of screen

catsoup · 10-18-2006, 05:33 AM

Thing is, I installed Debian and it seemingly got my both my nvidia graphics card and my lcd monitor completely wrong. As of now, the resultion is 640x480 (in X window envoirment) and I can only see the central part of the screen(!!! *tears hair from head*). During install I told to use nv, not vga and I manually added the horizontal and vertical refresh rates. When I try to change the resolution manually through xrandr, it doesn't give me a choice of something higher than 640x480.
In my XF86Config-4
a "Generic video Card" as "Device identifier"
"nv" as driver
"Generic Monitor" as "Monitor identifier"
HSync 60-70
VRefr 43-75
"DPMS" as "option" below
Then I have several "display" subsections, apparently for each colour depth; each has "800x600" and "640x480" in "Modes"
What can I change

I'm stuck

Please help!

EDIT: Update
the screen resolution preferences tool also offers only 640x480 res. in drop down menue and 60Hz refresh rate

Dutch Master · 10-19-2006, 08:33 AM

Try the trusted "dpkg-reconfigure xserver-xfree86" and use the VESA driver for now. Add, during the reconfig-process, the required display sizes by selecting the resolution and pressing the spacebar

farslayer · 10-19-2006, 02:08 PM

nv is the correct Open Source driver for nVidia Graphics cards.

You can edit your /etc/X11/XF86config-4 file and add in the reolutions you need in the screen section.

Check the manual or manufacturers website for your LCD to ensure those settings are correct. If the LCD settings aren't correct then you wil not be able to get the resolutions you desire..

nVidia controller
19" LCD monitor
1280x1024 Default resolution.

Code:

Section "Device"
        Identifier      "Generic Video Card"
        Driver          "nv"
EndSection

Section "Monitor"
        Identifier      "Visual SensatKDS"
        HorizSync       30-64
        VertRefresh     50-60
        Option          "DPMS"
EndSection

Section "Screen"
        Identifier      "Default Screen"
        Device          "Generic Video Card"
        Monitor         "Visual SensatKDS"
        DefaultDepth    16
        SubSection "Display"
                Depth           1
                Modes           "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth           4
                Modes           "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth           8
                Modes           "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth           15
                Modes           "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