[Kernel-packages] [Bug 1970426] Re: [i915] screen is flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)

*** This bug is a duplicate of bug 1958191 *** https://bugs.launchpad.net/bugs/1958191 Also happening on Xubuntu 22.04 (which it's not Wayland) o the same UHD Graphics. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)

@Oibaf (oibaf) - I experienced the same issue on Xubuntu 22.04 too. The very last available xubuntu 21.10 kernel was fine. I upgraded from fully updated 21.10 to 22.40 and then the problem started. Not sure what is the latest 21.10 available kernel. Perhaps 5.13.0.1022.23 ? Not sure how to do a

[Kernel-packages] [Bug 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)

adding "i915.enable_dc=0 intel_idle.max_cstate=2" doesn't help in my case (kernel 5.15, Intel UHD / i915 graphics) -- 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] Sc

[Kernel-packages] [Bug 1976398] [NEW] Screen flickering in Ubuntu 22.04 and Intel UHD graphics (adding "i915.enable_dc=0 intel_idle.max_cstate=2" doesn't help)

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: "

[Kernel-packages] [Bug 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)

Reported a new bug here: https://bugs.launchpad.net/ubuntu/+source/linux-signed-lowlatency/+bug/1976398 as in my case adding extra option to GRUB didn't help. Please follow there if you are also affected. -- You received this bug notification because you are a member of Kernel Packages, which is

[Kernel-packages] [Bug 1976398] Re: Screen flickering in Ubuntu 22.04 and Intel UHD graphics (adding "i915.enable_dc=0 intel_idle.max_cstate=2" doesn't help)

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-sign

[Kernel-packages] [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)

I'm using 5.15.0-39-lowlatency and "intel_iommu=off" has solved the flickering problem. I was having the same issue as Anaggh showed on the first video in his comment above. Still have "i915.enable_dc=0 intel_idle.max_cstate=2" for now too (but that on it's own didn't help before). -- You rece

[Kernel-packages] [Bug 1976398] Re: Screen flickering in Ubuntu 22.04 and Intel UHD graphics (adding "i915.enable_dc=0 intel_idle.max_cstate=2" doesn't help)

** Changed in: linux-signed-lowlatency (Ubuntu) Status: Confirmed => Fix Released -- 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