Public bug reported:

Intermittent screen flickering (random moving image sideways).
Issues started after upgrade to 22.04 (kernel 5.15, last 5.13 kernel from 21.10 
was fine).

A similar bug to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1958191

but adding below line to grub options:

"i915.enable_dc=0 intel_idle.max_cstate=2"

and executing "sudo update-grub" doesn't help.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-5.15.0-33-lowlatency 5.15.0-33.34
ProcVersionSignature: Ubuntu 5.15.0-33.34-lowlatency 5.15.30
Uname: Linux 5.15.0-33-lowlatency x86_64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: XFCE
Date: Tue May 31 20:06:18 2022
InstallationDate: Installed on 2021-05-12 (383 days ago)
InstallationMedia: Xubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
SourcePackage: linux-signed-lowlatency
UpgradeStatus: Upgraded to jammy on 2022-05-07 (24 days ago)

** Affects: linux-signed-lowlatency (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug i915 jammy kernel-bug

** Tags added: i915 kernel-bug

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-signed-lowlatency in Ubuntu.
https://bugs.launchpad.net/bugs/1976398

Title:
  Screen flickering in Ubuntu 22.04 and Intel UHD graphics (adding
  "i915.enable_dc=0 intel_idle.max_cstate=2" doesn't help)

Status in linux-signed-lowlatency package in Ubuntu:
  New

Bug description:
  Intermittent screen flickering (random moving image sideways).
  Issues started after upgrade to 22.04 (kernel 5.15, last 5.13 kernel from 
21.10 was fine).

  A similar bug to:
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1958191

  but adding below line to grub options:

  "i915.enable_dc=0 intel_idle.max_cstate=2"

  and executing "sudo update-grub" doesn't help.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: linux-image-5.15.0-33-lowlatency 5.15.0-33.34
  ProcVersionSignature: Ubuntu 5.15.0-33.34-lowlatency 5.15.30
  Uname: Linux 5.15.0-33-lowlatency x86_64
  ApportVersion: 2.20.11-0ubuntu82.1
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: XFCE
  Date: Tue May 31 20:06:18 2022
  InstallationDate: Installed on 2021-05-12 (383 days ago)
  InstallationMedia: Xubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
  SourcePackage: linux-signed-lowlatency
  UpgradeStatus: Upgraded to jammy on 2022-05-07 (24 days ago)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-signed-lowlatency/+bug/1976398/+subscriptions


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