Comment 126 for bug 1958191

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Ketos (ketosenergy) wrote (last edit ):

I am having the same issue with a Lenovo Thinkpad X1 Carbon Gen 10 Model 21CBCTO1WW, CPU Intel i7-1270P with an Intel Iris Xe card.

I run Ubuntu 22.04.3 LTS and tested all the available kernels, including the latest 6.7 mainline.

I also tried all possible combinations of the grub parameters in /etc/default/grub...
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash 915.enable_psr2_sel_fetch=0 i915.enable_psr=0 i915.enable_fbc=0 i915.modset=0 intel_idle.max_cstate=2"

I tried with different distros (Fedora, latest Ubuntu, older Ubuntu) with live USB-Stick.

The problem with the flickering persist on all the combinations on the internal screen.
When I connect an external display via HDMI, the error persists on the internal screen, but the external screen is stable and just fine.

I am starting to think that there might be an issue with the resolution or the refresh rate of the internal screen.

Currently went back to the official 'linux-generic-hwe-22.04' which is a 6.5.0-14 Kernel
uname -a
Linux carbon10 6.5.0-14-generic #14~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Mon Nov 20 18:15:30 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

sudo lshw | grep -A2 display
        *-display
             description: VGA compatible controller
             product: Alder Lake-P Integrated Graphics Controller

Did anybody have resolved this annoying issue yet?