[Bug 244306] x11-servers/xorg-server: starting OpenGL application freezes the display (regression with 1.20.7)

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244306

Vladimir Kondratyev <wulf at freebsd.org> changed:

           What    |Removed                     |Added
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                 CC|                            |wulf at freebsd.org

--- Comment #1 from Vladimir Kondratyev <wulf at freebsd.org> ---
Created attachment 211830
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=211830&action=edit
Restore xorg-server's FIXDRM option

I have seen very similar bug in the past with xfwm-4.12. It went away after
xfwm updating to 4.14 but it is possible that it still exists in some other
WMs.

There were several options for me to workaround this at xfwm-4.12 times:
1. Downgrade drm-kmod to 4.11
2. Replace xfwm compositor with compton/picom.
3. Use xf86-video-intel instead of modesetting driver.
4. Rebuild xorg-server with FIXDRM option enabled after enclosed patch has been
applied.

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