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1b1ed1a
(Get the code!)
I've been having this same kind of hang ever since Kubuntu 9.04. Back then I used the 2.4 version of X to avoid the problem (and I can still do that). It meant I could not have accelerated graphics but that wasn't much of an issue for me. But since 9.10 it also means I cannot suspend and resume (either to ram or disk), which I really need to work to be productive.
So, I've been trying every tip I can find to work around this problem. I'm attaching the logs from the latest hang. Since upgrading to the 2.6.33 kernel at least I can VT switch to the console instead of having to SSH in. And I can even start a new X application (like xterm) which I could never do before. But existing X windows are all gone into never-never land, as is the window manager (though the processes are still there of course).
I'll be trying the various xorg.conf options mentioned here to narrow the subsystem it is in:
https:/
(The batch buffer dump won't be useful on my version but I have the i915_error_state file instead).