[Bug 257810] x11/gnome3(-lite) & x11/gdm lags significantly on amdgpu

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 23 Sep 2022 04:39:52 UTC

BorisM <autofocus111@yahoo.com> changed:

           What    |Removed                     |Added
                 CC|                            |autofocus111@yahoo.com

--- Comment #11 from BorisM <autofocus111@yahoo.com> ---
System: Dell Precision T3500 w Intel X5650 CPU and ATI HD4850 GPU PCIE card
OS: FreeBSD 13.1 (fresh install).
Packages installed: xorg, drm-kmod, xf86-video-ati.
Kernel graphics driver (from dmesg): [drm] Initialized radeon 2.50.0 20080528
Xorg graphics driver (from Xorg log): radeon

Test1: Installed KDE5/SDDM and get proper graphical login and hardware
accelerated graphics in desktop environment.

Test2: Installed Gnome422/GDM and get blank login screen w active mouse
pointer. Disabling DRI3 (DRI2 only) and now able to access desktop but gnome
reports software rendering. Observed some display artifacts after a few

So I can confirm this issue also affects and older GPU running the radeon
driver. Saved xorg and system message logs and can post if anyone wants to see

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