Public bug reported:
If the "Tearfree" Xorg option for Intel graphics is turned on, painting
the default wallpaper is corrupted. See attached screenshot.
My X11 change from default for the "Tearfree" option is:
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "TearFree" "true"
EndSection
as /etc/X11/xorg.conf.d/20-intel.conf
Copying the wallpaper to My Pictures and setting as wallpaper doesn't
show the corruption. Using other wallpapers including included
wallpapers shows no corruption.
Removing the "tearfree" option then logoff/logon doesn't show the
wallpaper corruption (but gives me screen tearing when playing videos,
which I don't like. Using the Wayland option shows no wallpaper
corruption.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30
Uname: Linux 5.4.0-29-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Wed May 6 14:06:30 2020
DistUpgraded: 2020-05-02 16:18:39,153 DEBUG Running PostInstallScript:
'./xorg_fix_proprietary.py'
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA
controller])
Subsystem: Dell UHD Graphics 620 [1028:07e6]
InstallationDate: Installed on 2018-08-09 (636 days ago)
InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary
20180608-09:38
MachineType: Dell Inc. XPS 13 9370
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-29-generic
root=UUID=ff06b612-9a9b-4692-bd35-9dc3a5e65fef ro mem_sleep_default=deep quiet
splash drm_kms_helper.edid_firmware=edid/1920x1080_50.00.bin vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to focal on 2020-05-02 (3 days ago)
dmi.bios.date: 12/11/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.12.1
dmi.board.name: 0F6P3V
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.12.1:bd12/11/2019:svnDellInc.:pnXPS139370:pvr:rvnDellInc.:rn0F6P3V:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 9370
dmi.product.sku: 07E6
dmi.sys.vendor: Dell Inc.
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 20.0.4-2ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2
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 corruption focal ubuntu
** Attachment added: "Screenshot from 2020-05-06 14-09-35.png"
https://bugs.launchpad.net/bugs/1877115/+attachment/5367345/+files/Screenshot%20from%202020-05-06%2014-09-35.png
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https://bugs.launchpad.net/bugs/1877115
Title:
Corruption of default wallpaper
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