[Bug 44800] New: Radeon HD 6450 CAICOS screen corruption and kernel crashes

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=44800

             Bug #: 44800
           Summary: Radeon HD 6450 CAICOS screen corruption and kernel
                    crashes
    Classification: Unclassified
           Product: DRI
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: marko.kohtala at gmail.com


Created attachment 55597
  --> https://bugs.freedesktop.org/attachment.cgi?id=55597
Artefacts in X

I got Radeon HD 6450 1GB DDR3 last fall and have been unable to use it.

I currently run fairly recent 32-bit Debian versions on top of 64-bit vanilla
kernel 3.2.1 (currently with minor patch to makefile and a debug output patch
https://bugs.freedesktop.org/attachment.cgi?id=53428). I've tried with 32-bit
kernel and some older kernels without noticing any difference.

I've tried installing Windows and ran some OpenCL tests. All worked fine so I'd
expect the hardware is working correctly.

I tried if kernel options iomem=off mem=2G would help. They did not help.
mem=2G was needed because jmicron driver for ATA failed without iomem.

I attach some more files I collected while trying if it has gotten fixed.
Now I'm back to running a loaned nVidia card to be able to report this.

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