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SubjectRe: [REGRESSION] i915 VT switch with AIGLX causes X lock up
Date
On Monday, February 23, 2009 2:32:26 pm Sitsofe Wheeler wrote:
> On Sat, Feb 21, 2009 at 03:38:22PM +0000, Sitsofe Wheeler wrote:
> > With 2.6.29rc5 and xorg-server 2:1.4.1~git20080131-1ubuntu9.2 switching
> > to a VT after starting compiz causes X to nearly lock up.
> >
> > Steps to reproduce:
> > 1. Start X
> > 2. Run compiz
> > 3. Switch to VT1 via ctrl-alt-f1
> > 4. Switch back to X via ctrl-alt-f7
> >
> > The result is that X will remain displaying a black screen from then on
> > (the mouse cursor is visible and still moves). Switching to a VT after
> > this locks up the keyboard. When compiz is not running this bug does not
> > occur. I am not using kernel mode setting and booting with nomodesetting
> > made no difference. This problem was not present in 2.6.28. The problem
> > is reproducible every time.
> >
> > Graphics card is an i915 in an EeePC 900:
> >
> > 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile
> > 915GM/GMS/910GML Express Graphics Controller [8086:2592] (rev 04)
> >
> > This might be http://bugzilla.kernel.org/show_bug.cgi?id=12264 but I
> > can't reopen that bug and this bug might turn out to be different. Might
> > also be related to
> > http://marc.info/?l=linux-kernel&m=123499984611624&w=2 .
>
> Still here in 2.6.29-rc6.

Can you get a backtrace of the hung process, maybe by logging in from another
machine and using gdb on the Xorg process?
--
Jesse Barnes, Intel Open Source Technology Center


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