Thank you for the response.

>   xe.enable_psr=0

This alone does not fix the flickers on my ThinkPad X1 Carbon Gen 14.


It turns out that putting any of the following in /etc/default/grub can fix the 
flickers. Of course, one has to `sudo update-grub` and then reboot.  


```
GRUB_CMDLINE_LINUX_DEFAULT="xe.enable_psr2_sel_fetch=0 
xe.enable_panel_replay=0"  # Disable selective PSR2 fetch and PR.
```

```
GRUB_CMDLINE_LINUX_DEFAULT="xe.enable_psr=1 xe.enable_panel_replay=0"  # 
Disable PSR2 and PR.
```

```
GRUB_CMDLINE_LINUX_DEFAULT="xe.enable_psr=0 xe.enable_panel_replay=0"  # 
Disable PSR and PR.
```

It would be great if there is a more fundamental solution.

Thanks.

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https://bugs.launchpad.net/bugs/2156709

Title:
  Xubuntu 26.04 flickers on ThinkPad X1 Carbon Gen 14

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