Public bug reported:
I have a Thinkpad T42 with Radeon Mobility M6. S3 sleep works fine,
usually.
Today I've started compiz instead of metacity. It works reasonably
well. However, if I suspend my laptop with compiz, it becomes unusable
after resuming. The screen shows a text console (radeonfb) with some
kernel messages (something about overcharge on USB ports; I usually see
those every time on suspend/resume). The keyboard is nearly dead:
CapsLock does nothing, Ctrl+Alt+F1 does nothing, Ctrl+Alt+Backspace does
nothing. Alt+SysRq works, although no kernel messages are shown on
screen.
I can ssh into my laptop at this state. dmesg shows no error messages
or oopses of any kind. I can see all my desktop processes running (gdm,
X, compiz.real, firefox, NetworkManager, etc). sudo chvt 1 hangs until
I press ^C. sudo /etc/init.d/gdm restart takes a long time stopping
gdm, claims success for both stopping and starting, but nothing changes
on screen and I still see all my desktop processes running, not killed.
I can attach strace to X, but it shows no activity. I cannot attach gdb
to the X process -- I get "permission denied" even though I run gdb as
root.
sudo reboot reboots the computer in an orderly way. I can see the
usplash progress bar while the machine is shutting down -- that's the
first thing that's updated on screen.
** Affects: Ubuntu
Importance: Undecided
Status: Unconfirmed
--
3D desktop breaks S3 sleep
https://launchpad.net/bugs/80318
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