Following up on this: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1958191/comments/16
Booting with 5.15.0-25-generic and the i915.enable_dc=0 intel_idle.max_cstate=2 configs seems to fix the issue on my hardware. 5.15.0-27-generic won't stop shaking randomly no matter what value I test on intel_idle.max_cstate. It seems to get worse when there are many windows on the screen or something is zoomed in/out. For example, on shopping sites like aliexpress, hovering with the mouse on the product normally spawns this window with the zoomed product, I noticed that this caused a lot of shaking. Reading stuff, especially with images seems to cause it more regularly as well. However, watching videos was fine all the time. I can also confirm that the kernel 5.13.0-20-generic works without an issue with the same hardware as some of my work colleagues have the same machine running Ubuntu 21.10 with that kernel. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1958191 Title: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added) Status in linux package in Ubuntu: Triaged Bug description: Ubuntu 22.04 development branch on kernel 5.15.0-17-generic @ 18/1/2022 Booting into desktop gets heavy screen flickering and disforming (unusable) both booting on xorg and wayland on kernel 5.13 it did not occur so heavy (only little glitches once in a while see bug 1948778) adding the kernel paramater intel_idle.max_cstate=4 fixed this i had these same bugs on this machine before: https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1838644 https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1948778 ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: linux-image-5.15.0-17-generic 5.15.0-17.17 ProcVersionSignature: Ubuntu 5.15.0-17.17-generic 5.15.12 Uname: Linux 5.15.0-17-generic x86_64 ApportVersion: 2.20.11-0ubuntu75 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: lotuspsychje 1201 F.... pipewire-media- lotuspsychje 1207 F.... pulseaudio /dev/snd/seq: lotuspsychje 1193 F.... pipewire CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Tue Jan 18 04:22:00 2022 Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 8087:0025 Intel Corp. Wireless-AC 9260 Bluetooth Adapter Bus 001 Device 003: ID 04f2:b59e Chicony Electronics Co., Ltd Chicony USB2.0 Camera Bus 001 Device 002: ID 046d:c534 Logitech, Inc. Unifying Receiver Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Notebook N7x0WU ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-17-generic root=UUID=a41247d1-3bc3-453e-849a-e07fdcca6201 ro quiet splash intel_idle.max_cstate=4 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.15.0-17-generic N/A linux-backports-modules-5.15.0-17-generic N/A linux-firmware 1.204 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/07/2019 dmi.bios.release: 7.13 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 7.13 dmi.board.asset.tag: Tag 12345 dmi.board.name: N7x0WU dmi.board.vendor: Notebook dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: No Enclosure dmi.chassis.version: N/A dmi.ec.firmware.release: 7.14 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr7.13:bd01/07/2019:br7.13:efr7.14:svnNotebook:pnN7x0WU:pvrNotApplicable:rvnNotebook:rnN7x0WU:rvrNotApplicable:cvnNoEnclosure:ct10:cvrN/A:skuNotApplicable: dmi.product.family: Not Applicable dmi.product.name: N7x0WU dmi.product.sku: Not Applicable dmi.product.version: Not Applicable dmi.sys.vendor: Notebook To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1958191/+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
