I have a iMac DV (G3) and ran into this problem using Kubuntu 6.06 desktop image. I am happy to report that the freq workaround mentioned above (https://launchpad.net/distros/ubuntu/+source/xorg/+bug/22976/comments/13) successfully corrected the problem for me.
I have attached my xorg.conf file which is unaltered from initial load except for the freq settings.
I have a iMac DV (G3) and ran into this problem using Kubuntu 6.06 desktop image. I am happy to report that the freq workaround mentioned above (https:/ /launchpad. net/distros/ ubuntu/ +source/ xorg/+bug/ 22976/comments/ 13) successfully corrected the problem for me.
I have attached my xorg.conf file which is unaltered from initial load except for the freq settings.