[Bug 233902] x11-drivers/xf86-video-intel: update to 2.99.917.20181203 (snapshot)

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233902

--- Comment #6 from Jan Beich <jbeich at FreeBSD.org> ---
SNA should work after bug 236003. As unsychronized userptr cannot be used
anymore performance maybe worse or there maybe glitches. However, not much can
be done without fixing synchronized userptr in drm-kmod.
https://github.com/FreeBSDDesktop/freebsd-base-graphics/issues/132

Check OpenGL and VAAPI e.g., multimedia/mpv (--hwdec=vaapi), www/firefox (WebGL
demos), x11-wm/compton (--backend glx). Maybe also try DRI3 by setting Option
"DRI3" "true" in xorg.conf and export LIBGL_DRI3_ENABLE=1 in ~/.profile.

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