*** This bug is a duplicate of bug 1846398 ***
    https://bugs.launchpad.net/bugs/1846398

Thank you for taking the time to report this bug and helping to make
Ubuntu better. This particular bug has already been reported and is a
duplicate of bug 1846398, so it is being marked as such. Please look at
the other bug report to see if there is any missing information that you
can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report. Feel free to continue to report any other bugs you may
find.


** This bug has been marked a duplicate of bug 1846398
   [modeset] xrandr transformations cause significant visible tearing in Xorg 
sessions

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https://bugs.launchpad.net/bugs/1955826

Title:
  screen tearing

Status in xorg package in Ubuntu:
  New

Bug description:
  screen was tearing while watching videos

  ProblemType: Bug
  DistroRelease: Ubuntu 21.10
  Package: xorg 1:7.7+22ubuntu2
  ProcVersionSignature: Ubuntu 5.13.0-22.22-generic 5.13.19
  Uname: Linux 5.13.0-22-generic x86_64
  ApportVersion: 2.20.11-0ubuntu71
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CasperMD5CheckResult: pass
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Dec 27 18:46:54 2021
  DistUpgraded: Fresh install
  DistroCodename: impish
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, including running git bisection searches
  GraphicsCard:
   Intel Corporation Skylake GT2 [HD Graphics 520] [8086:1916] (rev 07) 
(prog-if 00 [VGA controller])
     Subsystem: Lenovo Skylake GT2 [HD Graphics 520] [17aa:3822]
  InstallationDate: Installed on 2021-12-04 (22 days ago)
  InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 0cf3:e360 Qualcomm Atheros Communications 
   Bus 001 Device 003: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card 
Reader Controller
   Bus 001 Device 002: ID 5986:06b1 Acer, Inc EasyCamera
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 80SL
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-22-generic 
root=UUID=dbf98c46-2c30-46b7-9d28-b94843baabd5 ro quiet splash
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/09/2018
  dmi.bios.release: 1.45
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 0XCN45WW
  dmi.board.asset.tag: NO Asset Tag
  dmi.board.name: Toronto 4A2
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40679 WIN
  dmi.chassis.asset.tag: NO Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo ideapad 310-14ISK
  dmi.ec.firmware.release: 1.45
  dmi.modalias: 
dmi:bvnLENOVO:bvr0XCN45WW:bd08/09/2018:br1.45:efr1.45:svnLENOVO:pn80SL:pvrLenovoideapad310-14ISK:rvnLENOVO:rnToronto4A2:rvrSDK0J40679WIN:cvnLENOVO:ct10:cvrLenovoideapad310-14ISK:skuLENOVO_MT_80SL_BU_idea_FM_Lenovoideapad310-14ISK:
  dmi.product.family: IDEAPAD
  dmi.product.name: 80SL
  dmi.product.sku: LENOVO_MT_80SL_BU_idea_FM_Lenovo ideapad 310-14ISK
  dmi.product.version: Lenovo ideapad 310-14ISK
  dmi.sys.vendor: LENOVO
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.107-8ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 21.2.2-1ubuntu1
  version.libgl1-mesa-glx: libgl1-mesa-glx 21.2.2-1ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1.1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2build1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20200714-1ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.17-1build1

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