Intel driver missing shading language extension

[Mateusz Kaduk]

I can only provide more verbose info from Xorg.0.log and dmesg
According to log error is caused by

Error in I830WaitLpRing(), timeout for 2 seconds

I need another laptop to debug it with gdb, when I do attach <pid>
and switch to X can't go back and screen is black.

2008/7/24 Alan Hourihane <alanh at fairlite.co.uk>:

> Sounds like you are running in indirect GLX mode and there's a bug in
> the driver so the Xserver will crash.
>
> If you stop xdm (or equivalent) then Xorg will stop respawning and you
> should be able to get a backtrace in gdb, or via a core dump.
>
> But going back to the first point, it'd be easier to check why you are
> running in indirect mode first and fix that, it'd be easier to debug the
> driver then.
>
>
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