I use and seems like adding "intel_iommu=off" to grub options has solved the flickering problem. It's described here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1958191
-- 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: Confirmed 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
