Forget compiz, beryl, etc. I have reproduced this with the login screen only running - using gdm.
I have a Thinkpad t60p, ATI "M56GL [Mobility FireGL V5200]". Fglrx 8.37.6. Ubuntu gutsy, kernel 2.6.22-14-rt. While at the gdmgreeter (login) screen, ssh in to the machine, run ps -afe | grep gdm --- and see: UID PID PPID C STIME TTY TIME CMD root 25173 1 0 23:28 ? 00:00:00 /usr/sbin/gdm --config=/etc/gdm/gdm-cdd.conf root 25174 25173 0 23:28 ? 00:00:00 /usr/sbin/gdm --config=/etc/gdm/gdm-cdd.conf root 25184 25174 3 23:28 tty9 00:00:03 /usr/bin/X :0 -br -audit 0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp root 25190 25184 0 23:28 tty9 00:00:00 /usr/bin/X :0 -br -audit 0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp gdm 25201 25174 1 23:28 ? 00:00:01 /usr/lib/gdm/gdmgreeter You can see it's running on tty9 (vt9). It was running gdm on vt11 (?!?!) earlier, I found the option in cdm-cdd.conf and disabled it (now set to "VTAllocation=false") but it's still not running on vt7. I've used UNIX and Linux for nearly 20 years now, and I'm telling you that VT7 is reflex action - but (and this is really bad) going to vt7 locks up the machine solid. All you can do is ssh in and run 'gdm restart'. This is, as far as I'm concerned, HIGH priority. Heck, it's critical. For those of us who naturally expect vt7 to be the X session, it's an absolutely critical defect that the machine locks up. If I could still flip around among the VT's, then I could recover......it would only be annoying, losing a second or two. But if I'm in a hotel room (one laptop) or in the airport, I'm going to be holding down the power button until the thing just shuts off...and then watching it reboot again, as I need to board a plane. This is unacceptable :-( I don't know if it's gdm or Xorg or fglrx, but if we could please please find the root cause for this one there would be MANY grateful (advanced) linux users out there.....and you can count me among them. Let me know what (else) I can do to help diagnose this one. Thanks for listening! /Bill -- Feisty freezes upon Logout or Switch user https://bugs.launchpad.net/bugs/118605 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
