[Bug 24379] New: Random system freezes with RV350

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=24379

           Summary: Random system freezes with RV350
           Product: xorg
           Version: git
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: alga777 at gmail.com
         QAContact: xorg-team at lists.x.org


Hello, I get random system freezes using:

Ubuntu 9.10 Karmic (Beta)
xserver-xorg-video-radeon from Tormod Volden: 6.12.99+git20091002.cc45856a

Toshiba M30X with an ATI Radeon 9700 (M10) - RV350 - 64 MB VRAM

The freezes seem GPU hardlocks, mouse pointer is frozen too and keyboard stops
responding (no Caps Lock, no SysReq magic keys); ATM I cannot if system is
accessible via ssh (I suspect yes, though). As said, system hardlocks randomly;
anyway, more often the freeze is triggered by:

  * window maximize/minimize (more often with compiz enabled)
  * evince pdf reading (compiz enabled and disabled)

Increasing virtual size makes crashes more frequent, using multiple monitors
with xrandr is a guaranteed crash. This makes me think that the issue can be
related to VRAM amount and/or GART transfers (I don't know the matter so well,
actually...).

The only way I found to stop freezes is setting RenderAccel to false, but then
I get screen corruption increasing virtual size beyond the default (greater the
virtual is, greater is the corruption). And obviously the system becomes
noticeably slower...

Options like AccelDFS, AGPMode=[PCI|auto|1] (set via xorg.conf and via
modprobe), ClockGating, DynamicPM, dynclks  seem to not make difference.


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