Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 07 Apr 2023 20:04:39 +0200
From:      Jan Beich <jbeich@FreeBSD.org>
To:        Kevin Oberman <rkoberman@gmail.com>
Cc:        multimedia@freebsd.org
Subject:   Re: Poor performance with Alder Lake graphics (ThinkPad T16)
Message-ID:  <y1n3-4lhk-wny@FreeBSD.org>
In-Reply-To: <CAN6yY1vAvV4nWh91XtP3hrhPoDHcbyWgxOpWYUhVJEaO7rNBAQ@mail.gmail.com> (Kevin Oberman's message of "Mon, 3 Apr 2023 22:57:45 -0700")
References:  <CAN6yY1uvk5QdAcfnqoUVDH-sO6t9sJ4OWCBjB2pQee%2B8MqDCPQ@mail.gmail.com> <bkk6-5itr-wny@FreeBSD.org> <CAN6yY1vAvV4nWh91XtP3hrhPoDHcbyWgxOpWYUhVJEaO7rNBAQ@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help
Kevin Oberman <rkoberman@gmail.com> writes:

>> Looks like OpenGL acceleration failed under Xorg for some reason.
>> Maybe caused by https://github.com/freebsd/drm-kmod/issues/175
>
> Nope. glxinfo looks fine.

glxinfo is X11-specific where "direct rendering" is often misleading.
Indirect GLX hasn't been used by default for >10 years.

See also https://gitlab.freedesktop.org/mesa/mesa/-/commit/08bc3d175069
         https://gitlab.freedesktop.org/xorg/xserver/-/commit/d0da0e9c3bb8

> Can't believe that this graphics is MUCH worse than my 12 year old Ivy Lake
> system.

On my hardware Xorg is 20% slower, see https://reviews.freebsd.org/P501
This is *without* TearFree and X11 compositor (e.g., picom).



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?y1n3-4lhk-wny>