[Bug 2063143] Re: sddm/simpledrm race conditions leads to frequent black display on bootup

Matias N. Goldberg 2063143 at bugs.launchpad.net
Sat Sep 7 15:38:09 UTC 2024


I ran into this issue, but I use lightdm instead of SDDM.

A simple solution on AMD is to force Early KMS:

```
echo "amdgpu" | sudo tee --append /etc/initramfs-tools/modules
sudo update-initramfs -c -k $(uname -r)
```

This will force AMD drivers to be loaded very early on boot,
workarounding the race condition entirely.

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Title:
  sddm/simpledrm race conditions leads to frequent black display on
  bootup

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