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Bug#464793: xserver-xorg-video-intel: VT switching after using OpenGL and second display produces system freeze

Hello again,

over the last few days, I have done more testing. Bad news is that actually all driver versions
crash, including the git-master branch. Sometimes it just takes longer, so it was not
immediately noticeable.
The crash doesn't even seem to depend on using OpenGL apps, as I first thought.
The system freezes when switching outputs several times and than switching to VT. Sometimes it
just crashes without VT-switch (output switching only), leaving the screen strangely distorted.

I did an strace for both the intel driver from debian as well as the git-master
version crashing, I hope that helps somehow. As these are quite long, I have packed them up.
Both traces were copied from an SSH terminal, so its only the last thousand-something lines.

If there is more I can do, just tell me. It might take a few days, though.



Brice Goglin wrote:
> Soenke wrote:
>> 2.2-branch crashes, Xorg.log is attached.
>> Still no crashes with master branch.
>> As I am somewhat new to git, I hope I got it right.
>> Here's what I did:
>> git-checkout -b xf86-video-intel-2.2-branch 		
>> origin/xf86-video-intel-2.2-branch
>> git pull (was already at newest version)
>> make clean && ./autogen.sh && make
>> and it seemed to produce a different driver version (md5sums were
>> different). I hope that was the correct way to switch to the other branch.
> It looks good.
> Do you know if the 2.2.0 driver had the problem?
> The package is available in
> http://snapshot.debian.net/archive/2007/11/17/debian/pool/main/x/xserver-xorg-video-intel/
> If it works, we'll need to git-bisect between 2.2.0 and the current 2.2
> branch to find where the problem appeared. If it doesn't work, we'll
> need to git-bisect between 2.2.0 and the current master branch to find
> where the problem was fixed. I'll help you do the git-bisect if needed.
> Brice

Attachment: xorg-intel-straces.tar.bz2
Description: application/bzip

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