[Bug 267915] graphics/mesa-*: 22.2.3 broken hw acceleration on Intel Iris Pro

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 07 Dec 2022 11:33:02 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=267915

--- Comment #4 from Jan Beich <jbeich@FreeBSD.org> ---
Can you reproduce after ports 855947ebf7e7 (mesa 22.3.0)?
Can you reproduce with xf86-video-intel instead of "modesetting"? For
performance parity enable SNA and DRI3 like described in intel(4x) manpage.
Can you reproduce with KDE, XFCE or non-DE like ctwm?
Can you reproduce a Wayland compositor? For example, see
https://docs.freebsd.org/en/books/handbook/wayland/#wayland-wayfire 

Maybe bisect upstream Mesa commits. Start with a known good version, familarize
with building outside of ports, apply patches from old versions of mesa-dri or
mesa-devel then go git-bisect(1) route. Once the regressing commit is tracked
down it should be easier to reason about what to do next (revert the commit,
report upstream, debug drm-kmod, etc).

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