In /etc/default/grub, I added the following kernel parameter:
GRUB_CMDLINE_LINUX_DEFAULT="i915.enable_dc=0"
Then run sudo update-grub and restart your computer.
This disables GPU power management.
It still freezes for a while, but then it is released and it seems to
work. CPU usage seems to
With my Dell Latitude 7490 running kernel 5.13.0-22 on Ubuntu 21.10, it
freezes around the login screen.
However, if I boot with my dock (Dell WD15) connected, it seems to work fine.
Until I disconnect the dock... then it freezes a few seconds after.
I tried both of these mainline versions:
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