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Message #111754
[Bug 1440606] Re: Screen garbled after changing display settings
I booted up into the latest Kubuntu 15.04 daily build, and while the
corruption still occurs when changing display settings, unlike Unity it
seems to recover afterwards (the background gets messed up as you can
see from the video, but at least the desktop remains usable):
https://www.dropbox.com/s/cganqpegygseo6r/VID_20150408_182602.mp4?dl=0
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https://bugs.launchpad.net/bugs/1440606
Title:
Screen garbled after changing display settings
Status in xserver-xorg-video-ati package in Ubuntu:
New
Bug description:
On my dual-monitor setup, changing the display settings to turn off
the secondary display results in the main display becoming entirely
garbled and unusable. Waiting for the 20 seconds to elapse causes the
configuration to revert to the previous configuration, but then both
screens are garbled and unusable until I switch to a virtual terminal
and run "sudo service lightdm restart".
The effect can be observed in the following video:
https://www.dropbox.com/s/49cx1qm67tzjojy/VID_20150405_165947.mp4?dl=0
I am using a Radeon R7 260X, with the open-source radeonsi driver.
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: xorg 1:7.7+7ubuntu4
ProcVersionSignature: Ubuntu 3.19.0-12.12-generic 3.19.3
Uname: Linux 3.19.0-12-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.17-0ubuntu1
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Sun Apr 5 17:01:37 2015
DistUpgraded: 2015-03-27 18:17:09,531 DEBUG enabling apt cron job
DistroCodename: vivid
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Bonaire XTX [Radeon R7 260X] [1002:6658] (prog-if 00 [VGA controller])
Subsystem: VISIONTEK Device [1545:7260]
InstallationDate: Installed on 2014-06-06 (302 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: Gigabyte Technology Co., Ltd. GA-970A-D3
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-12-generic root=UUID=d254b01f-2bf2-4b57-acdc-c796786f4c4c ro
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to vivid on 2015-03-27 (8 days ago)
dmi.bios.date: 12/16/2013
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F13b
dmi.board.name: GA-970A-D3
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF13b:bd12/16/2013:svnGigabyteTechnologyCo.,Ltd.:pnGA-970A-D3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-970A-D3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: GA-970A-D3
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz 1:0.9.12.1+15.04.20150330-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.59-0ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2build1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
xserver.bootTime: Sun Apr 5 17:00:57 2015
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.17.1-0ubuntu3
xserver.video_driver: radeon
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References