[Bug 30297] New: GPU lockup / radeon_fence.c:235 / RV620 : xorg freezes (or not!)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=30297

           Summary: GPU lockup / radeon_fence.c:235 / RV620 : xorg freezes
                    (or not!)
           Product: xorg
           Version: 7.5
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: kaouete at crazydwarves.org
         QAContact: xorg-team at lists.x.org


Hi,

I had this problem for some times but today it was worst and I needed to reboot
to overcome it.

I have a laptop connected to an external screen through DVI on a station.
Both screen are on (see xorg.conf attached next).

I am using mesa 7.8.2, xf86-video-ati 6.13.1, xorg 7.5 (xorg-server 1.8.1.902),
kernel 2.6.35 with KMS enabled.

The thing is that from time to time both screens turns all black, then come
back and continues working.
Today when the image came back, it stays frozen and I had to do an hard reboot.
When I rebooted, the laptop screens was blank/white, it happened some times in
the past, and I need to turn it off, then turn it on again for that to
disappear.

Hopefully I have a kernel log (attached next) that shows the radeon driver
(radeon_fence.c) crashing or something like that.
We can see on Sep 20 11:13:05 the screen turning black then coming back and
working. Then on Sep 21 07:58:10 again except that this time it stayed frozen
after coming back.

More information can be given if needed.

Thanks

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