Public bug reported:
My laptop is DELL Vostro 3550. BIOS A11.
If I use external monitor and extend my desktop to both the built-in laptop
display and the external LCD, the display settings are auto-changed by the
system. This may include:
- Resetting to "mirrored" displays at 1024x768
- Resetting to a single display on the laptop panel
- Resetting to a single display on the external monitor
I am finding though that the issue is worse by far if I use AMD GPU than if I
use Intel GPU. I switch between them with AMD CCC, however the issue is present
even if I never install AMD drivers and just use Intel GPU out-of-the-box.
So, if I use AMD GPU my monitors keep switching between resolutions, mirroring
switches on and off very frequently - like more times every minute. If I use
Intel GPU I can go a day without spontaneous switching of resolutions and/or
mirroring displays, sometimes it happens like 2 or 3 times per day.
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: Mon Mar 17 09:36:31 2014
DistUpgraded: Fresh install
DistroCodename: raring
DistroVariant: ubuntu
ExtraDebuggingInterest: I just need to know a workaround
GraphicsCard:
Intel Corporation 2nd Generation Core Processor Family Integrated Graphics
Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
Subsystem: Dell Device [1028:04cd]
Advanced Micro Devices [AMD] nee ATI Whistler [Radeon HD 6600M/6700M/7600M
Series] [1002:6741] (rev ff) (prog-if ff)
InstallationDate: Installed on 2014-03-17 (0 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MachineType: Dell Inc. Vostro 3550
MarkForUpload: True
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-35-generic
root=UUID=d9ac2de5-de02-45d6-af39-3588757a6e61 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/03/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A11
dmi.board.vendor: Dell Inc.
dmi.board.version: A11
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: Not Specified
dmi.modalias:
dmi:bvnDellInc.:bvrA11:bd08/03/2012:svnDellInc.:pnVostro3550:pvrNotSpecified:rvnDellInc.:rn:rvrA11:cvnDellInc.:ct8:cvrNotSpecified:
dmi.product.name: Vostro 3550
dmi.product.version: Not Specified
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.9~daily13.06.19~13.04-0ubuntu1
version.ia32-libs: ia32-libs N/A
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
** 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/1293425
Title:
[Dell Vostro 3550] Display resolution keeps switching with external
monitor connected
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