Thank you for your bug report, do you remember what packages got updated
at the time the issue started (the /var/log/dpkg.log record could help
figuring it out)? Could you try if starting an older kernel
(https://askubuntu.com/questions/82140/how-can-i-boot-with-an-older-
kernel-version) makes a difference? What videocard, driver and desktop
environment do you use?
** Changed in: xorg (Ubuntu)
Importance: Undecided => High
** Changed in: xorg (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1926110
Title:
Apps interface flickering
Status in xorg package in Ubuntu:
Incomplete
Bug description:
It has been 1-ish months since this problem appeared.
The app/system interface randomly starts flickering. This problem doesn't
occur on the entire system, sometime it occurs in some apps, other times in the
system, and other times all of these.
It occurs since installation.
Some images and videos (Unfortunetly you'll need to download the videos)
https://media.discordapp.net/attachments/748527796405403749/836001618255806484/unknown.png
https://media.discordapp.net/attachments/748527796405403749/836004993991311400/unknown.png
https://media.discordapp.net/attachments/586951783944028179/832728657075372102/unknown.png
https://cdn.discordapp.com/attachments/804416273701797909/832780706790375444/20210416_215049_576x324.mp4
https://cdn.discordapp.com/attachments/748527796405403749/836048880592355368/simplescreenrecorder-2021-04-25_22.05.52.mp4
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.8.0-50.56~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-50-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
BootLog: Error: [Errno 13] Permissão negada: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sun Apr 25 22:23:48 2021
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus: v4l2loopback, 0.12.3, 5.8.0-50-generic, x86_64: installed
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166]
(rev 09) (prog-if 00 [VGA controller])
Subsystem: Holco Enterprise Co, Ltd/Shuttle Computer 3rd Gen Core
processor Graphics Controller [1297:2027]
InstallationDate: Installed on 2021-04-17 (9 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64
(20210209.1)
MachineType: Positivo Informatica SA DC8CR01TV
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-50-generic
root=UUID=e2946f04-ffa3-4934-b119-e6dcc363a2da ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/31/2014
dmi.bios.release: 4.6
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2.01.U
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: DC8CR01TV
dmi.board.vendor: Positivo Informatica SA
dmi.board.version: POSITIVO
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 13
dmi.chassis.vendor: Positivo Informatica SA
dmi.chassis.version: POSITIVO
dmi.ec.firmware.release: 1.22
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr2.01.U:bd03/31/2014:br4.6:efr1.22:svnPositivoInformaticaSA:pnDC8CR01TV:pvr2.01.U_POS_TV:rvnPositivoInformaticaSA:rnDC8CR01TV:rvrPOSITIVO:cvnPositivoInformaticaSA:ct13:cvrPOSITIVO:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: DC8CR01TV
dmi.product.sku: 1700644
dmi.product.version: 2.01.U_POS_TV
dmi.sys.vendor: Positivo Informatica SA
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.2
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
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