XF86Config-4 problem with Resolution after hd install

[Shade]

Greetings all, this is my first post

I've had this problem with other distributions, but I really liked how Knoppix seemed to jive very well with all my hardware... Thus, the HD Install which went relatively flawlessly.

When I run off of the LiveCD, I get my desired resolution of 800x600. However, after the install, It will only run at 640x480, which makes everything huge as you know. Ctrl+Alt+ +/- only yield a garbled screen until I cycle back to 640 480...

So I changed my XF86Config-4 file to mention nothing but 800X600, yet I still only get 640x480 and the resolution cycling problem.

Here's the relevant info:

My box specs

Intel Celeron 300 mhz
ATI Radeon 9000 pro (R250)
Logitech USB Wheelmouse (works fine)
40 Gig Knoppix Partition on /dev/hda2
40 Gig Win98 Partition on hda1
192 megs of ram
Yamaha integrated sound

and the relevant parts of my config file:

 Section "ServerLayout"
        Identifier     "XFree86 Configured"
        Screen         "Screen0" 0 0
        InputDevice    "Keyboard0" "CoreKeyboard"
# PS/2 Mouse not detected
# Serial Mouse not detected
        InputDevice    "USB Mouse" "CorePointer"
EndSection

Section "Monitor"
        Identifier      "Monitor0"
        Option  "DPMS"  "true"
        VendorName      "GVC"
        ModelName       "GVC05ae"
        HorizSync 30-54# DDC-probed
        VertRefresh 50-90# DDC-probed
        # These are the DDC-probed settings reported by your monitor.
        # 1280x1024, 75.0Hz; hfreq=79.98, vfreq=75.03
        # ModeLine "1280x1024"  135.00 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync
        # 800x600, 85.0Hz; hfreq=53.67, vfreq=85.06
        ModeLine "800x600"       56.25  800  832  896 1048  600  601  604  631
 +hsync +vsync
        # 640x480, 75.0Hz; hfreq=37.50, vfreq=75.00
        # ModeLine "640x480"     31.50  640  656  720  840  480  481  484  500
 -hsync -vsync
EndSection

Section "Device"
        ### Available Driver options are:-
# sw_cursor is needed for some ati and radeon cards
        Option     "sw_cursor"
        #Option     "hw_cursor"
        #Option     "NoAccel"
        #Option     "ShowCache"
        #Option     "ShadowFB"
        #Option     "UseFBDev"
        #Option     "Rotate"
        Identifier  "Card0"
# The following line is auto-generated by KNOPPIX mkxf86config
        Driver      "vesa"
        VendorName  "Generic"
        BoardName   "vesa"
        BusID       "PCI:1:0:0"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Card0"
        Monitor    "Monitor0"
        DefaultColorDepth 16
        SubSection "Display"
                Depth     1
                Modes "800x600"
                Virtual 0 0
        EndSubSection
        SubSection "Display"
                Depth     4
                Modes "800x600"
                Virtual 0 0
        EndSubSection
        SubSection "Display"
                Depth     8
                Modes "800x600"
                Virtual 0 0
        EndSubSection
       SubSection "Display"
                Depth     15
                Modes "800x600"
                Virtual 0 0
        EndSubSection
        SubSection "Display"
                Depth     16
                Modes "800x600"
                Virtual 0 0
        EndSubSection
        SubSection "Display"
                Depth     24
                Modes "800x600"
                Virtual 0 0
        EndSubSection
        SubSection "Display"
                Depth     32
                Modes "800x600"
                Virtual 0 0
        EndSubSection
EndSection

And that's where I'm left... What's next to try?

-Thanks,
Shade

[garyng]

I don't know about other video card, but for me I can get nothing but 640x480 when vesa driver is used(mine is a cheapo i810). I would suggest may be using a device specific driver would help.

Why not just boot up the CD version and copy the configure file over ?

[Stephen]

Easy solution boot from the cd open a console window then sudo mount /dev/hd?? /mnt/hd?? replace ?? with your / install partition to mount the drive and partition you installed too. Then sudo cp /mnt/hd??/etc/X11/XF86Config-4 /mnt/hd??/etc/X11/XF86Config-4.original to back up your current HD config file. Then sudo cp /etc/X11/XF86Config-4 /mnt/hd??/etc/X11/XF86Config-4 to copy the working CD config to the HD. Reboot.