Comment 11 for bug 439594

I upgraded my primary system without seeing this particular issue, I don't rember if the screensaver started during the install or not. Anyway, the X server didn't crash during the installation. The fact that I didn't have any graphics after the reboot into Lucid is a different story (and unrelated to this bug).

I'm afraid I'm not willing to do any more testing since this would require me to make another physical installation (a VM doesn't cut it for obvious reasons) of Karmic and go through the trouble of upgrading again (and fixing the X configuration breakage, again).