[Bug 79231] New: Corrupted display on HD 7730

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79231

          Priority: medium
            Bug ID: 79231
          Assignee: xorg-driver-ati at lists.x.org
           Summary: Corrupted display on HD 7730
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: madcatx at atlas.cz
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: Driver/Radeon
           Product: xorg

Created attachment 99804
  --> https://bugs.freedesktop.org/attachment.cgi?id=99804&action=edit
xorg log

Ever since I got this card several months ago I've been having an issue where
the sceen is completely messed up. The problem I'm having seems to be identical
to that discussed here (https://bbs.archlinux.org/viewtopic.php?id=180541),
except that I'm on up to date Fedora 20.

kernel 3.14.4
xorg 1.14.4
xorg-x11-drv-ati
   Version     : 7.2.0
   Release     : 3.20131101git3b38701.fc2
xorg-x11-glamor
   Version     : 0.5.1
   Release     : 3.20140115gitfb4d046c.fc20
mesa 10.1.3

The only way to get rid of these artifacts is to use "RenderAccel" "EXA" or
"NoAccel" "yes" in xorg config.

I've tried various kernel parameters to debug this but I haven't found a way
how to get the card working properly expect for disabling acceleration
altogether.

03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cape
Verde LE [Radeon HD 7730/8730] (prog-if 00 [VGA controller])
    Subsystem: PC Partner Limited / Sapphire Technology Device e228
    Flags: bus master, fast devsel, latency 0, IRQ 24
    Memory at d0000000 (64-bit, prefetchable) [size=256M]
    Memory at fbc80000 (64-bit, non-prefetchable) [size=256K]
    I/O ports at c000 [size=256]
    Expansion ROM at fbcc0000 [disabled] [size=128K]
    Capabilities: [48] Vendor Specific Information: Len=08 <?>
    Capabilities: [50] Power Management version 3
    Capabilities: [58] Express Legacy Endpoint, MSI 00
    Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
    Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
    Capabilities: [150] Advanced Error Reporting
    Capabilities: [270] #19
    Kernel driver in use: radeon
    Kernel modules: radeon

Is there anything I can do to help fix this?

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