[Bug 28116] New: [Xpress 200M] Random crashes on X11 start

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=28116

           Summary: [Xpress 200M] Random crashes on X11 start
           Product: xorg
           Version: git
          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: gentoo at mgorny.alt.pl
         QAContact: xorg-team at lists.x.org


I'm running Gentoo Linux with git xorg version for some time (tried few stable
ones earlier) and kernel 2.6.33 (I've tried .30 and .31 earlier too) on an Asus
F5RL laptop with the following video card:

01:05.0 VGA compatible controller: ATI Technologies Inc RC410 [Radeon Xpress
200M] (prog-if 00 [VGA controller])

With modesetting disabled, the Xorg server tends to crash semi-randomly on
video card initialization. The crashes might be partially hardware-related as
when starting the laptop cold the Xorg tends to start successfully more often
while after warm reboot it crashes even up to 10 times in a row.

And by 'crashing' there I mean that the screen goes blank, backlight goes off
and nothing more happens. The screen is probably still blank (checked with
strong external light), there's no disk activity (there's always some when xdm
starts) and the system doesn't respond to SysRq.

With modesetting enabled, the video card seems to be initialized successfully
every boot (as it is initalized earlier then?) and Xorg starts fine then. It
tends to crash with larger graphics I/O then though, but it's rather a material
for another bugreport.

I'll attach the logfiles later today (after the system is updated and I
reproduce the issue). Should I attach anything else?

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