Public bug reported:
How to reproduce:
* In lightdm login screen, switch to tty2 (Ctrl+Alt+F2)
* Execute this after login:
sudo su
service lightdm stop
echo DDIS > /sys/kernel/debug/vgaswitcheroo/switch
# frozen here, can't switch to other ttys; but keyboard input is still
received, eg.:
reboot
Actually I want to switch to AMD Radeon graphics, because in X session
it would not work.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: xorg 1:7.7+1ubuntu4
ProcVersionSignature: Ubuntu 3.8.0-35.50-generic 3.8.13.13
Uname: Linux 3.8.0-35-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.9.2-0ubuntu8.5
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: Fri Jan 24 16:28:48 2014
DistUpgraded: 2013-05-13 10:19:43,316 DEBUG enabling apt cron job
DistroCodename: raring
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev
09) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device [103c:183a]
Advanced Micro Devices [AMD] nee ATI Thames XT [Radeon HD 7670M] [1002:6840]
(prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device [103c:183a]
InstallationDate: Installed on 2012-11-04 (445 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MachineType: Hewlett-Packard HP Pavilion g4 Notebook PC
MarkForUpload: True
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-35-generic
root=UUID=e04f70eb-7ce2-4634-a927-dd1049671407 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to raring on 2013-05-13 (256 days ago)
dmi.bios.date: 01/18/2012
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.01
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 183A
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 56.0E
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnHewlett-Packard:bvrF.01:bd01/18/2012:svnHewlett-Packard:pnHPPaviliong4NotebookPC:pvr0791100000205610000620100:rvnHewlett-Packard:rn183A:rvr56.0E:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: HP Pavilion g4 Notebook PC
dmi.product.version: 0791100000205610000620100
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.9~daily13.06.19~13.04-0ubuntu1
version.ia32-libs: ia32-libs 20090808ubuntu36
version.libdrm2: libdrm2 2.4.46-1ubuntu0.1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.7-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.7-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4.3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1
xserver.bootTime: Fri Jan 24 16:14:57 2014
xserver.configfile: default
xserver.errors: RADEON(G0): [XvMC] Failed to initialize extension.
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.13.3-0ubuntu6.2
xserver.video_driver: intel
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug compiz-0.9 raring ubuntu
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https://bugs.launchpad.net/bugs/1272242
Title:
Hybrid graphics: switching to discrete by using switcheroo make screen
going black
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