Public bug reported:
I use Dell Dock Station - D6000S and noticed in the latest two kernels an
instability on my external monitors. I use two external monitors and they
randomly stops showing the images for a couple of seconds. It's similar as if
the usb-C connection to the docker got interrupted and then connected again.
Notebook display doesn't have this issue.
Please verify the root cause.
Thanks,
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.11.0-41.45~20.04.1-generic 5.11.22
Uname: Linux 5.11.0-41-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: GNOME-Flashback:GNOME
Date: Fri Dec 17 11:25:54 2021
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus:
evdi, 1.9.1, 5.11.0-41-generic, x86_64: installed
evdi, 1.9.1, 5.11.0-43-generic, x86_64: installed
virtualbox, 6.1.26, 5.11.0-41-generic, x86_64: installed
virtualbox, 6.1.26, 5.11.0-43-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation UHD Graphics [8086:9b41] (rev 02) (prog-if 00 [VGA
controller])
Subsystem: Dell UHD Graphics [1028:09a0]
InstallationDate: Installed on 2021-04-07 (253 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: Dell Inc. Latitude 5410
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.11.0-41-generic
root=/dev/mapper/vgubuntu-root ro quiet splash
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/11/2021
dmi.bios.release: 1.5
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.5.1
dmi.board.name: 08NM43
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.5.1:bd03/11/2021:br1.5:svnDellInc.:pnLatitude5410:pvr:sku09A0:rvnDellInc.:rn08NM43:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: Latitude
dmi.product.name: Latitude 5410
dmi.product.sku: 09A0
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.105-3~20.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 21.0.3-0ubuntu0.3~20.04.5
version.libgl1-mesa-glx: libgl1-mesa-glx 21.0.3-0ubuntu0.3~20.04.5
version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1~20.04.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal ubuntu
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https://bugs.launchpad.net/bugs/1955138
Title:
External monitor stops showing image for a few seconds
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