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.
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 -generic x86_64 support. test.0:
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3
Uname: Linux 4.5.0-040500rc6
.tmp.unity.
ApportVersion: 2.20-0ubuntu3 compiz- 1/general/ screen0/ options/ active_ plugins' irectDriverBlac klist: '(nouveau| Intel). *Mesa 8.0' irectFSW: true -generic, x86_64: installed nterest: Yes, if not too technical /boot/vmlinuz- 4.5.0-040500rc6 -generic root=UUID= e0064410- 4660-40b7- b961-76f320a921 a6 ro amdgpu.powerplay=1 asset.tag: ATN123456789012 34567 asset.tag: No Asset Tag version: 1.0 MegatrendsInc. :bvr217: bd09/07/ 2012:svnASUSTeK COMPUTERINC. :pnK55DR: pvr1.0: rvnASUSTeKCOMPU TERINC. :rnK55DR: rvr1.0: cvnASUSTeKCOMPU TERINC. :ct10:cvr1. 0: version: 1.0 2+16.04. 20160209- 0ubuntu1 libgl1- mesa-dri: libgl1-mesa-dri 11.1.2-1ubuntu1 libgl1- mesa-dri- experimental: libgl1- mesa-dri- experimental N/A libgl1- mesa-glx: libgl1-mesa-glx 11.1.2-1ubuntu1 xserver- xorg-core: xserver-xorg-core 2:1.18.1-1ubuntu3 xserver- xorg-input- evdev: xserver- xorg-input- evdev 1:2.10.1-1ubuntu2 xserver- xorg-video- ati: xserver- xorg-video- ati 1:7.6.1-1ubuntu2 xserver- xorg-video- intel: xserver- xorg-video- intel 2:2.99. 917+git20160218 -1ubuntu3 xserver- xorg-video- nouveau: xserver- xorg-video- nouveau 1:1.0.12-1build2 video_driver: radeon
Architecture: amd64
CompizPlugins: No value set for `/apps/
CompositorRunning: compiz
CompositorUnred
CompositorUnred
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
ExtraDebuggingI
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=
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.
dmi.board.name: K55DR
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: K55DR
dmi.product.
dmi.sys.vendor: ASUSTeK COMPUTER INC.
version.compiz: compiz 1:0.9.12.
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1
version.
version.
version.
version.
version.
version.
version.
version.
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.