Public bug reported:
When external monitor is connected to VGA port (AMD Radeon 7470m) internal
laptop monitor stops working. I'm able to set laptop monitor as primary which
disables external monitor (and vice-versa)
I was using fglrx without problems however after fglrx support dropped in
recent Ubuntu update I was forced to return to xorg driver. Tried manual switch
to mainline Linux 4.5 kernel, same thing. Tested on 14.04, 15.10, 16.04 with
same results.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3
Uname: Linux 4.5.0-040500rc6-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.20-0ubuntu3
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
Date: Sat Mar 5 04:32:48 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
DkmsStatus:
virtualbox, 5.0.14, 4.4.0-10-generic, x86_64: installed
virtualbox, 5.0.14, 4.4.0-8-generic, x86_64: installed
virtualbox, 5.0.14, 4.5.0-040500rc6-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Trinity [Radeon HD 7640G] [1002:9903]
(prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Trinity [Radeon HD 7640G] [1043:106b]
Advanced Micro Devices, Inc. [AMD/ATI] Seymour [Radeon HD 6400M/7400M Series]
[1002:6760] (rev ff) (prog-if ff)
InstallationDate: Installed on 2016-02-18 (15 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
MachineType: ASUSTeK COMPUTER INC. K55DR
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.5.0-040500rc6-generic
root=UUID=e0064410-4660-40b7-b961-76f320a921a6 ro amdgpu.powerplay=1
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/07/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 217
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: K55DR
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr217:bd09/07/2012:svnASUSTeKCOMPUTERINC.:pnK55DR:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnK55DR:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: K55DR
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
version.compiz: compiz 1:0.9.12.2+16.04.20160209-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.1.2-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.1.2-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.18.1-1ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.6.1-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20160218-1ubuntu3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
xserver.bootTime: Sat Mar 5 04:27:41 2016
xserver.configfile: default
xserver.errors: RADEON(G0): [XvMC] Failed to initialize extension.
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.18.1-1ubuntu3
xserver.video_driver: radeon
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug compiz-0.9 ubuntu xenial
--
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/1553441
Title:
Only one monitor working at the time (xorg-amdgpu)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1553441/+subscriptions
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