I haven't done further testing, but here goes. Xscreensaver seems to lock up the machine when it blanks the screen. The machine has to be reset. I couldn't test to see if I could get into it remotely since I don't have any networked machines at home at the moment. Removing xscreensaver & kdebase-3d-screensavers fixes the problem (machine doesn't have a blank screen and won't lock up).
*** Bug 13318 has been marked as a duplicate of this bug. ***
*** Bug 12256 has been marked as a duplicate of this bug. ***
This should be fixed in XFree86-4.0-0.32. (FWIW, the XFree86-Servers packages also needs to be rebuilt.)
I saw this on beta3. Was the fix supposed to be in beta3? It hung on a moire pattern and I totally lost control of the mouse and keyboard. Ctrl-Alt-Backspace and Ctrl-Alt-Delete did nothing. I had a couple of rlogin sessions going to it and they were fine. I tried to kill the X-server. It died but the screen didn't change and I didn't get control of my keyboard or mouse back. I had to issue a shutdown and reboot.
No, it was fixed shortly after beta3.
So, the latest xscreensaver package should fix this?
No, you need a newer XFree86 or XFree86-Servers package. The compiler was miscompiling part of the X server.
Are these in rawhide? I looked in ftp://beta.redhat.com/pub/rawhide/i386/RedHat/RPMS/ and I seem to already have the latest version of everything: XFree86-4.0.1-0.30 XFree86-devel-4.0.1-0.30 XFree86-libs-4.0.1-0.30 XFree86-tools-4.0.1-0.30 XFree86-Mach64-3.3.6-30 These version numbers seem to match what is in rawhide.
No response to above comment so re-opening...
They will be fixed in beta4/ the next rawhide release.
This problem may still exist. When I upgraded from 7.0 to 7.1 it appeared. A work-around seems to be to rename your old .xscreensaver file out of the way, let it create a new one, and re-do your preferences.