[Bug 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added) (fixed in 5.17.7 and later)

Hi there,
I had the same issue with Ubuntu 22.04, where I really could not fix it. Recently I did a fresh installation of Ubuntu 24.04 with the big hope of getting rid of this annoying flickering issue.
However, no, it did persist and even in most worse form.

I did follow few threads on this and did the proposed fix
```
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_dc=0 intel_idle.max_cstate=2"
sudo update-grub
sudo reboot
```
It did make it bit better instantly, however did not fix it completely.
here is my computer info:
```
uname -a
Linux ThinkPad-L13-Yoga-Gen-4 6.8.0-1014-oem #14-Ubuntu SMP PREEMPT_DYNAMIC Wed Oct 9 13:16:31 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
```

I wonder if there is any other better fix for this problem?

regards,

--
You received this bug notification because you are subscribed to linux
in Ubuntu.
Matching subscriptions: Bgg, Bmail, Nb
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) (fixed in 5.17.7 and later)

Status in linux package in Ubuntu:
Fix Released
Status in linux-hwe-5.19 package in Ubuntu:
Fix Released
Status in linux-hwe-6.2 package in Ubuntu:
Confirmed
Status in linux-hwe-6.5 package in Ubuntu:
Confirmed
Status in linux-hwe-6.8 package in Ubuntu:
Confirmed
Status in linux source package in Lunar:
Won't Fix
Status in linux-hwe-5.19 source package in Lunar:
Invalid
Status in linux-hwe-6.2 source package in Lunar:
Invalid
Status in linux-hwe-6.5 source package in Lunar:
Won't Fix

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 parameter i915.enable_dc=0 intel_idle.max_cstate=2
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