1002:6741 [Dell Vostro 3550] Display resolution keeps switching with external monitor connected
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
xorg (Ubuntu) |
Confirmed
|
Low
|
Unassigned |
Bug Description
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 a "mirrored" display at 1024x768, a single display on the laptop panel, or a single display on the external monitor.
If I use just the AMD GPU via the AMD CCC, my monitors keep switching between resolutions, mirroring switches on and off every minute or so.
WORKAROUND: If I switch to just the Intel GPU via the AMD GPU, or never install AMD drivers and just use the Intel GPU out-of-the-box, 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
ProcVersionSign
Uname: Linux 3.8.0-35-generic x86_64
.tmp.unity.
ApportVersion: 2.9.2-0ubuntu8.5
Architecture: amd64
CompizPlugins: No value set for `/apps/
CompositorRunning: compiz
CompositorUnred
CompositorUnred
Date: Mon Mar 17 09:36:31 2014
DistUpgraded: Fresh install
DistroCodename: raring
DistroVariant: ubuntu
ExtraDebuggingI
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=
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.
dmi.modalias: dmi:bvnDellInc.
dmi.product.name: Vostro 3550
dmi.product.
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.9~
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.46-1ubuntu0.1
version.
version.
version.
version.
version.
version.
version.
version.
description: | updated |
tags: | added: needs-focus |
Changed in xorg (Ubuntu): | |
status: | Incomplete → New |
Goran Obal, thank you for reporting this and helping make Ubuntu better. Could you please test for this with the latest development release of Ubuntu? ISO images are available from http:// cdimage. ubuntu. com/daily- live/current/ .
If it remains an issue, please just make a comment to this.