Public bug reported: 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 ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug compiz-0.9 corruption ubuntu vivid -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1440606 Title: Screen garbled after changing display settings To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1440606/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
