[Bug 58634] New: garbled output and system freeze with ColorTiling2D and version 7.0.0 on R

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=58634

          Priority: medium
            Bug ID: 58634
          Assignee: xorg-driver-ati at lists.x.org
           Summary: garbled output and system freeze with ColorTiling2D
                    and version 7.0.0 on R
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: adamreichold at myopera.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: 7.0.0
         Component: Driver/Radeon
           Product: xorg

Since updating from version 6.4.16 to 7.0.0, I have to explicitly disable
ColorTiling2D in xorg.conf, otherwise the output is completely garbled
(everything seems to be compressed into a small rectangle in the lower right
corner of the screen) and the system freezes (the screen is refreshing
periodically as it does when the GPU stalls). Operation seems to be normal
using the older driver or disabling ColorTiling2D.

The hardware is "00:01.0 VGA compatible controller: Advanced Micro Devices
[AMD] nee ATI BeaverCreek [Radeon HD 6530D] (prog-if 00 [VGA controller])"
being part of an AMD A6-3500 APU.

The X server reports this as "Chipset: "SUMO" (ChipID = 0x964a)". The X server
version is 1.13.1, libdrm version is 2.4.40. The X server's log file does not
contain any warnings or errors from the driver.

The kernel version is "3.6.10-1-ARCH #1 SMP PREEMPT x86_64 GNU/Linux".

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