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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Packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1915014

Title:
  Screen goes occasionally black after taking a screenshot

Status in xorg package in Ubuntu:
  New

Bug description:
  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

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