[Bug 292140] DRM Drivers No Longer working correctly

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=292140

--- Comment #3 from Ben Hutton <[email protected]> ---
(In reply to Adrian Chadd from comment #2)
My issue occurs when compiling from the HEAD of the ports tree.

If I go back to commit 011d8882ade1f40a4f39e08ad9d183733cc43fd4 it works ok but
suspend gets a little unstable. Sometimes it works and other times it fails to
enter suspend mode with and error like kernel: acpi0: request to enter state
NONE failed (err 22).

I have narrowed it down to the nvidia drivers. However I get the feeling it is
how the nvidia drm drivers are interaction with the main drm-66-kmod driver. I
have also tried the devel drivers without and success as well.

The main thing is if I install version 580.105.08_2 (the commit above) it works
with acceptable performance and if I run version 580.119.02_2 it doesn't. The
issue however still doesn't appear if I have external screens attached. Only if
it's solely on the laptop screen.

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