graphics troubles with sarge 2.6.7 install

zensufi · 08-09-2004, 03:36 PM

I just finished installing (I'm writing this from a different computer) sarge from a netinstall CD. The installation itself went without a hitch. However, when the system boots and starts gdm (or when I type "startx -- :1" in another terminal), the graphics display is all screwed up. I have the upper-left of what should be on the screen repeated twice and then the bottom third or so of the monitor is just noise.

During the install, I selected "desktop evironment" and just hit enter through the x configuration screens except when I changed the driver from default vesa to vga because of the following line from lspci:

01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 65x/M650/740 PCI/AGP VGA Display Adapter

How can I configure my display to work properly now that debian is installed?

Thanks,

Brian

macondo · 08-09-2004, 03:49 PM

#dpkg-reconfigure xserver-xfree86

zensufi · 08-09-2004, 04:36 PM

I did this. I chose the advanced configuration option and entered 28-96 for the horizontal, 50-75 for the vertical, and 1024x768, 800x600, and 640x480 for the allowable resolutions (I got all these numbers from the knoppix boot screen - knoppix works with my monitor). However, my problem has not disappeared. What's going on?

Thanks,

Brian

m_yates · 08-09-2004, 09:46 PM

Try booting your computer with the Knoppix CD and copying the Knoppix configuration over onto the hard drive. You will need to mount the root partition. For example if it is installed in hda1:

Code:

mount /dev/hda1 /mnt/hda1
mv /mnt/hda1/etc/X11/XF86Config-4 /mnt/hda1/etc/X11/XF86Config-4.old
cp /etc/X11/XF86Config-4 /mnt/hda1/etc/X11/XF86Config-4
reboot

It is a quick fix if the display configuration is wrong.

HappyTux · 08-09-2004, 10:32 PM

Make sure you remove the extra FontPaths in the Knoppix file that will not be present on your system though and you may want to get rid of the custom Modlines as well in addition you will want to put the correct values for the vertical and horizontal refresh rates of the monitor, Knoppix uses very conservative values for these.

zensufi · 08-10-2004, 06:07 PM

Well, the bad news was that the knoppix settings caused my system to crash. The good news is that my video card works now! It only took 45 minutes of experimentation in the xserver config program. I tried setting after setting after setting and then poof, it worked.

Brian