[Bug 89815] DRI3 and EXA: scrambled output when switching monitors - bugzilla-daemon

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 89815] DRI3 and EXA: scrambled output when switching monitors
Date: Sun, 29 Mar 2015 20:48:19 +0000	[thread overview]
Message-ID: <bug-89815-502@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=89815

            Bug ID: 89815
           Summary: DRI3 and EXA: scrambled output when switching monitors
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: h.judt@gmx.at

I am using compiz-0.8. With DRI3 enabled in xorg.conf and AccelMethod EXA, the
output becomes scrambled when switching monitors.
This does not happen with DRI3 off and AccelMethod EXA,
 and does not happen with DRI3  on and AccelMethod glamour.

There seems no proper way to restore functionality except killing compiz
(leaving a black screen) and starting another window manager, like xfwm4. After
that, launching compiz again is not possible, I have to restart the X server.

Using xf86-video-ati git master (391900a670addec39515f924265bfa9f8bfa9ec0).

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Cayman PRO [Radeon HD 6950] (prog-if 00 [VGA controller])
        Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Cayman PRO [Radeon HD
6950]
        Flags: bus master, fast devsel, latency 0, IRQ 25
        Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Memory at f7e20000 (64-bit, non-prefetchable) [size=128K]
        I/O ports at e000 [size=256]
        Expansion ROM at f7e00000 [disabled] [size=128K]
        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

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