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7020100
(Get the code!)
Good idea. I'm going to paste the two descriptions from 1027619 here too:
OP:
I am running xubuntu 12.04 on a Thinkpad X301. Since I first installed 12.04 a few months ago, everything worked fine for a couple of months. But a few weeks ago (i.e. early July 2012), I started getting xorg crashes.
The crashes happen when the computer is attempting to sleep (suspend, not hibernate), either because I closed the lid or because I left it on long enough for sleep to kick in automatically. It happens about 1 time in 5 that sleep is attempted. I get returned to the login screen. Sleep does not complete. The flashing moon light continues to blink. I can log in again and continue, but nothing works properly... no wireless, docky will not launch, everything is very slow, etc.
These frequent crashes make xubuntu 12.04 completely unusable. I hope that a solution can be found soon.
Follow-up from joeaguy:
I have a ThinkPad t420s and have the same issue.
I can suspend to ram successfully several times, but under normal usage, after the 3rd or 4th time Xorg crashes and I am sent back to the login screen. The moon icon flashes and then stops. Once on the login screen, logging in does not work, control-alt-F1 (etc) do not get me to a login terminal. If I select shutdown, the computer goes to sleep during shutdown, and I have to wake it order to finish shutdown. The computer is generally not usable until I reboot.
I have tried booting and then putting my computer to sleep and waking it up repeatedly, running different programs in between each cycle, to try and find some trigger that reproduces the problem. I could not reproduce the problem this way. The crash has only happened for me after continuous normal usage. I have not been able to artificially create the conditions for the crash.
Let me know if there are any logs or other data I can provide to help diagnose.