[Bug 27591] New: xf86-video-ati 6.13.0 / HD3400 on Lenovo T400: lockup and color cycling

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=27591

           Summary: xf86-video-ati 6.13.0 / HD3400 on Lenovo T400: lockup
                    and color cycling
           Product: xorg
           Version: unspecified
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: satta at tetrinetsucht.de
         QAContact: xorg-team at lists.x.org


Created an attachment (id=34898)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=34898)
Dmesg for 2.6.32-19-generic-pae

Seems I have encountered another issue with my Radeon HD 3400 and
xf86-video-ati 6.13.0.

I copy&paste my machine info from an earlier, similar bug report
(http://bugs.freedesktop.org/show_bug.cgi?id=19544) if that's ok:
I have a Lenovo T400 with a "ATI Technologies Inc Mobility Radeon HD 3400
Series rev 0" graphics chip. Usually I boot up with the machine in the dock
(Lenovo Advanced Mini Dock), and use the DVI output there to drive a Samsung
24" display (multi-head via xrandr).

Using 6.13.0 (on Ubuntu lucid i686, KMS enabled), and when the laptop is in the
dock, my old problem with the cycling through uniformly colored full screens on
the internal display (white->red->green->blue->grey->vertical black/white
gradient->horizontal black/white gradient) has resurfaced. This time it does
not happen at X startup, but after a seemingly random period of time, even when
there is not much graphical load. The external screen just goes black (even
into powersave) and the internal display does the color cycling. This is
accompanied by the OS locking up, effectively a hard freeze.

Sorry I do cannot provide clear steps for reproducing the issue, but I could
not see any particular reason for this happening, as the occurrences look
random to me. If anyone has tips for locating the problem, I will be happy to
assist, of course.

I attach my dmesg info and X log for debugging.

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