maintainer-feedback requested: [Bug 257335] graphics/drm-fbsd13-kmod

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 22 Jul 2021 13:59:50 +0000
Bugzilla Automation <bugzilla_at_FreeBSD.org> has asked freebsd-x11 (Nobody)
<x11_at_FreeBSD.org> for maintainer-feedback:
Bug 257335: graphics/drm-fbsd13-kmod
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=257335



--- Description ---
FreeBSD shows heavy artifacting and texture corruption on i915 hardware with
mesa's new Gallium3D driver "Crocus".
This issue is tracked as a mesa issue here:
"Crocus on GM45: texture corruption, bad memory reads and GPU Hangs" (
https://gitlab.freedesktop.org/mesa/mesa/-/issues/5093 )
It has been suggested by a mesa dev, that the cause may be on FreeBSD's side
due to "missing some interfaces [...]".
That's why I cross-post this as a bug here.

TL;DR:
With a Laptop with a GM45 chipset, the GMA 4500 MHD iGPU, on the latest kernel,
with the latest drm-fbsd13-kmod and the latest mesa-devel, using crocus as the
graphics driver to launch any graphical program results in heavy artifacting
when a texture is displayed.

Attached is a screenshot of the videoplayer "MPV", which shows heavy corruption
of the image. Be it Video game or browser, everything shows this corruption, if
crocus is used.
Received on Thu Jul 22 2021 - 13:59:50 UTC

Original text of this message