Hi, Philip Cox Do I use these steps to test "i915.enable_psr2_sel_fetch=0"?
1. sudo gedit /etc/default/grub 2. Then replace GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" by GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_psr2_sel_fetch=0" 3. sudo update-grub Do I need to do anything else. Please let me know.. Thanks -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-hwe-6.8 in Ubuntu. https://bugs.launchpad.net/bugs/2077220 Title: (i915) external monitor flickering in 6.8.0-40.40~22.04.3 Status in linux-hwe-6.8 package in Ubuntu: Confirmed Bug description: I used sudo apt-get upgrade in Ubuntu 22.04.4 . Then karnel upgraded from 6.5.0-45.45~22.04.1 to 6.8.0-40.40~22.04.3. Now I am facing problem to my external monitor(1920x1080), that was blinking. Setting low resolution(ex:1680x1050) from settings for this monitor, blinking has gone. Another soluton That cause huze performance:- Changing karnel 6.5.0-45.45~22.04.1 to 6.8.0-40.40~22.04.3 at the time of booting. I tried Ubuntu 24.04, But it has the same blinking problem. https://youtu.be/-BXSe5k0SAk ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: ubuntu-release-upgrader-core 1:22.04.19 ProcVersionSignature: Ubuntu 6.8.0-40.40~22.04.3-generic 6.8.12 Uname: Linux 6.8.0-40-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu82.6 Architecture: amd64 CasperMD5CheckResult: pass CrashDB: ubuntu CrashReports: 640:0:124:4591909:2024-08-16 14:51:16.012351512 +0600:2024-08-16 14:51:17.012351512 +0600:/var/crash/_usr_bin_grub-customizer.0.crash 640:1000:124:536484:2024-08-16 23:46:35.262295246 +0600:2024-08-16 23:46:36.262295246 +0600:/var/crash/_opt_google_chrome_chrome.1000.crash 640:1000:124:12891878:2024-08-17 11:33:47.537503242 +0600:2024-08-17 11:33:48.537503242 +0600:/var/crash/_usr_lib_slack_slack.1000.crash 640:1000:124:1791389:2024-08-15 14:35:36.782359123 +0600:2024-08-15 17:07:21.757640327 +0600:/var/crash/_usr_libexec_tracker-extract-3.1000.crash CurrentDesktop: ubuntu:GNOME Date: Sat Aug 17 14:43:12 2024 InstallationDate: Installed on 2024-03-09 (161 days ago) InstallationMedia: Ubuntu 22.04.4 LTS "Jammy Jellyfish" - Release amd64 (20240220) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader Symptom: dist-upgrade UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-6.8/+bug/2077220/+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