maintainer-feedback requested: [Bug 254470] graphics/mesa-libs: patch-src_loader_meson.build breaks DRI on broadwell with modesetting

[bugzilla-noreply at freebsd.org]

Bugzilla Automation <bugzilla at FreeBSD.org> has asked freebsd-x11 (Nobody)
<x11 at FreeBSD.org> for maintainer-feedback:
Bug 254470: graphics/mesa-libs: patch-src_loader_meson.build breaks DRI on
broadwell with modesetting
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254470



--- Description ---
Updating my Thinkpad X250 (Broadwell chipset) to mesa-dri/libs 20.2.3 broke
direct rendering with the modesetting xorg driver. The xorg intel driver was
however ok, but with it, I needed to use MESA_LOADER_DRIVER_OVERRIDE=i965 to
get direct rendering.

I recompiled mesa-libs without the patch patch-src_loader_meson.build, and the
modesetting driver again enabled direct rendering.

This is on 11.4-STABLE r369446 with drm-fbsd11.2-kmod-4.11g20200420_1.

Sorry for the brevity, but can provide more info if needed!