Public bug reported:
Using a displayport link to connect with my external monitor causes
heavy flickering on my laptop screen. Especially when the external
monitor is being used. There is also a delay of refresh on the external
monitor... I can see my mouse appear multiple times when I move the
cursor.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8.1
ProcVersionSignature: Ubuntu 3.16.0-38.52~14.04.1-generic 3.16.7-ckt10
Uname: Linux 3.16.0-38-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.14.1-0ubuntu3.11
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
CurrentDesktop: Unity
Date: Sat May 23 15:44:23 2015
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation 2nd Generation Core Processor Family Integrated Graphics
Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device [17aa:21d1]
NVIDIA Corporation GF119M [Quadro NVS 4200M] [10de:1057] (rev a1) (prog-if 00
[VGA controller])
Subsystem: Lenovo Device [17aa:21d1]
InstallationDate: Installed on 2015-05-22 (1 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
Lsusb:
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 04f2:b217 Chicony Electronics Co., Ltd Lenovo
Integrated Camera (0.3MP)
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 4242DT6
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-38-generic
root=UUID=6ccdd4eb-99eb-4e91-9475-83b0b6ec953b ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/26/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 8AET64WW (1.44 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4242DT6
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr8AET64WW(1.44):bd07/26/2013:svnLENOVO:pn4242DT6:pvrThinkPadT520:rvnLENOVO:rn4242DT6:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4242DT6
dmi.product.version: ThinkPad T520
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.11.3+14.04.20150313-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.60-2~ubuntu14.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri N/A
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core N/A
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
xserver.bootTime: Sat May 23 10:47:36 2015
xserver.configfile: default
xserver.errors:
Failed to load module "nvidia" (module does not exist, 0)
Failed to load module "nvidia" (module does not exist, 0)
NOUVEAU(G0): [XvMC] Failed to initialize extension.
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.16.0-1ubuntu1.2~trusty2
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug compiz-0.9 trusty ubuntu
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https://bugs.launchpad.net/bugs/1458231
Title:
Using displayport with external monitor flickers laptop screen
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