On Wed, 2006-09-06 at 23:07 -0500, Barry Brimer wrote: > Dell Inspiron 600M w/ Radeon 9000 card. This worked with CentOS 4.3, also > works with Knoppix 4.0.2. Graphical installation succeeds, but upon > reboot, and all subsequent rebbots, graphical mode does not work, the > screen becomes black. In addition to the 2.6.9-42 kernel, we have also > tried the 2.6.9-42.0.2 kernel. Same problem exists on both kernel. > Running system-config-display --reconfig exits with the error "fatal IO > error 104" Connection reset by peer. > > Any ideas would be greatly appreciated. If you <Ctl-Alt-F1> can you get a login prompt? If so, look at /var/log/dmesg, /var/log/messages and /var/Xorg.0.log (IIRC). There may be some clues in there. Comparing the Xorg log to a previous version might yield a clue. An lsmod to see if a radeon module has been loaded? Keep an eye out for radeonfb as well. DRI is supposed to be unstable with radeons (although I run it NP). Keep an eye out for that and make sure the Xorg log shows it is disables. Go to /etc/X11 and see if an Xorg.conf exists. If so, look at it and sett any resolutions to lowest/plain vanilla to start with. > > Thanks, > Barry > <snip sig stuff> I'm a novice at this stuff, but I have the time to reply. HTH -- Bill