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[Thomas Schweikle <tps@xxxxxxxxx>]

Had time testing the mainline Linux kernel (Feb. 20th and 21st). Same. I
tried switching to vesa drivers --- same! It is impossible to start X11
even if I start the rescue system, then using startx. The whole thing
freezes immediately.

Switched back to ubuntu kernel. Freezes too. No difference.

I had the chance to try the same on a different hardware with i915
graphics. Tested first with no xorg.conf at all: graphics start, but
mouse is movable, but keyboard and mouse keys are not seen by X11. Tried
the same with axorg.conf. Tested various parameters. No change.

Same with vesa drivers. Desktop shown, but no mouse keys and keyboard.

At some point I noticed the keyboard really working, but if X11 started
from startx the underlying shell received the keypresses. Mouse keys
seem to go to nirvana.

If I start X11 from xdm (or [gk]dm) it hangs as soon as there is one mouse movement or keypress. Sometimes it is possible to press more than one key. Sometimes it is possible to move the mouse a bit further, but then all hangs. It may be possible to login remotely using ssh, but not always.
If you do not touch the mouse the system does hang after a while too, but it takes far longer until

I could not find any of these using VMware or VirtualBox. Everything is
fine using these emulators. But installing ubuntu on real hardware ...

-- 
[K8M800] Xorg freeze / Kernel 2.6.32-10-generic freeze
https://bugs.launchpad.net/bugs/508699
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