Public bug reported:
Weird issue which has come to my system via updates - possibly the Linux
kernel 5.8?
Steps to repro:
- Take a screenshot (prt scr)
- Continue using the computer
After I have taken a screenshot, my display gets quick black flashes
when using other applications. Manipulating the screenshot with Pinta,
opening web browser, etc.. Screen goes black for a second and then
resumes normal operation.
This does not happen before taking the screenshot, so it obviously
triggers something. The system works and is usable, but the black
flashes are pretty odd and distracting.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.8.0-41.46~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-41-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Mon Feb 8 14:39:47 2021
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Subsystem: Acer Incorporated [ALI] Baffin [Radeon RX 460/560D / Pro
450/455/460/555/555X/560/560X] [1025:1367]
Advanced Micro Devices, Inc. [AMD/ATI] Picasso [1002:15d8] (rev c2) (prog-if
00 [VGA controller])
Subsystem: Acer Incorporated [ALI] Picasso [1025:1366]
InstallationDate: Installed on 2020-05-16 (268 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: Acer Nitro AN515-43
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-41-generic
root=UUID=675bb42c-4c3c-461b-bce1-53e34e786eaa ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/24/2019
dmi.bios.release: 1.8
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.08
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: Octavia_PKS
dmi.board.vendor: PK
dmi.board.version: V1.08
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.08
dmi.ec.firmware.release: 1.5
dmi.modalias:
dmi:bvnInsydeCorp.:bvrV1.08:bd12/24/2019:br1.8:efr1.5:svnAcer:pnNitroAN515-43:pvrV1.08:rvnPK:rnOctavia_PKS:rvrV1.08:cvnAcer:ct10:cvrV1.08:
dmi.product.family: Nitro 5
dmi.product.name: Nitro AN515-43
dmi.product.sku: 0000000000000000
dmi.product.version: V1.08
dmi.sys.vendor: Acer
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 2:1.20.9-2ubuntu1.2~20.04.1
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
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug corruption focal ubuntu wayland-session
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https://bugs.launchpad.net/bugs/1915014
Title:
Screen goes occasionally black after taking a screenshot
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