Public bug reported:
Binary package hint: gdm
When I attempt to switch users, the system hard locks (i.e. The only way
to free the system was to hit the reset button).
Specs of possible interest:
1. Ubuntu Dapper with all the latest patches (Upgraded from Breezy).
2. ATI Radeon 9800 pro with official drivers.
3. Athlon 1800 processor.
Steps leading to the issue:
1. I log into my default account (The one I created during installation).
2. Once the desktop is available, I Select: "Quit...", "Lock Screen".
3. I have the "Blank Screen" screensaver active, so I move my mouse to get the
password dialog.
4. I select the "Switch User" button.
5. I select the user account I wish to activate.
6. The screen switches to tty 8 and then the system locks.
Note 1:
I've tried the following in response to the system locking:
1. Ctrl-Alt-Backspace
2. Ctrl-Alt-Delete
3. Ctrl-Alt-Fn(N) - Where 'N' is all of the function keys.
None of the above produced any results. In fact the keyboard indicator lights
have all been disabled at this point.
Note 2:
I can reproduce the locking sequence by typing:
gdmflexiserver -s
Note 3:
If I attempt to switch users without locking the screen, I am successful
roughly 1/3 of the time (i.e. sometimes the system locks, and other it works as
desired).
Note 4:
Typing: "gdmflexiserver --debug --xnest" produces no errors and brings up a
nested login.
** Affects: gdm (Ubuntu)
Importance: Undecided
Status: Unconfirmed
--
Switch user crashes system.
https://launchpad.net/bugs/76902
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