Thank you all, especially @jkbach, for your downgrade workaround for Fedora 42.
To summarize information for folks finding this thread:
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If you’re on Fedora 41, you can downgrade to v24
mesa.
sudo dnf downgrade mesa-va-drivers-0:24.2.4-1.fc41.x86_64You can then use the version lock plugin to prevent upgrading to the faulty version, per reply #20.
sudo dnf versionlock add mesa-va-drivers -
If you’re on Fedora 42, stuck with v25 and unable to downgrade from the repositories, you can use koji. See the above reply #39.
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For those of you waiting on a fix, per the
mesaissue (Gitlab #12809), it would seem to be fixed in v25.0.4 - as of yet not released on Fedora 42 See Fedora Packages. -
Setting the kernel parameter
amdgpu.sg_display=0per the above reply #27 or #33 did not resolve the issue for me, though some individuals have found it helpful.