*** This bug is a duplicate of bug 1853094 ***
https://bugs.launchpad.net/bugs/1853094
Thanks for the bug report.
It appears the tearing issue with the 'modesetting' driver is bug
1853094.
And you might also be experiencing extra flicker when you are using the
'intel' driver, which is bug 1867668.
So it seems you have to choose one bug or the other right now, sorry :(
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https://bugs.launchpad.net/bugs/1883534
Title:
Screen flickering
Status in xorg package in Ubuntu:
New
Bug description:
To whom it may concern,
As stated I have screen flickerings (see lightning like flickering on photo
attached for portrait screen, for horizontal screen I also have screen
flickering on the upper part but hard to catch in a photo) on freshly installed
Ubuntu 20.04 LTS.
I have tried this:
https://askubuntu.com/questions/1231441/ubuntu-screen-flickering
and this:
https://learnubuntumate.weebly.com/screen-tearing-on-intel-
graphics.html
without success. I have also seen some other people mentioning screen
flickering on ubuntu 20.04 here:
https://www.reddit.com/r/Ubuntu/comments/fvk536/anyone_else_noticing_window_flickering_on_ubuntu/
without solution.
I also know that it is very unlikely hardware problem because my screens were
displaying well on archlinux. I think my graphic card info are already included
in the report but just in case: Intel Corporation UHD Graphics 630. Might be
intel driver problems ?
Could you help me on this please ?
Best regards,
Jeremy
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41
Uname: Linux 5.4.0-37-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.2
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Mon Jun 15 15:05:27 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation UHD Graphics 630 (Desktop) [8086:3e92] (prog-if 00 [VGA
controller])
Subsystem: ASUSTeK Computer Inc. UHD Graphics 630 (Desktop) [1043:8694]
InstallationDate: Installed on 2020-06-12 (2 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 046a:0023 Cherry GmbH Keyboard
Bus 001 Device 003: ID 046d:c077 Logitech, Inc. M105 Optical Mouse
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Lsusb-t:
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/10p, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/16p, 480M
|__ Port 9: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid,
1.5M
|__ Port 9: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid,
1.5M
|__ Port 10: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid,
1.5M
MachineType: System manufacturer System Product Name
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-37-generic
root=UUID=81cee77a-b529-4dac-9834-dc6d5ab2dc16 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/11/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0615
dmi.board.asset.tag: Default string
dmi.board.name: PRIME Z370-P
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr0615:bd04/11/2018:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEZ370-P:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.101-2
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.4-2ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.1
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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