[Bug 276181] graphics/drm-61-kmod - screen flickering on Raptor Lake graphics

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=276181

--- Comment #11 from Gen Otsuji <otsugen0000@gmail.com> ---
(In reply to Oleksandr Kryvulia from comment #10)
Oh, Sorry.

anyway I fetched the patch(comment #9) and xorg-server, and patched it.
# fetch
https://www.linuxfromscratch.org/patches/blfs/svn/xorg-server-21.1.11-tearfree_backport-1.patch
# fetch https://www.x.org/pub/individual/xserver/xorg-server-21.1.11.tar.xz
# tar xf xorg-server-21.1.11.tar.xz
# cd xorg-server-21.1.11
# patch -Np1 -i ../xorg-server-21.1.11-tearfree_backport-1.patch
# cat hw/xfree86/drivers/modesetting/driver.c
....
    {OPTION_TEARFREE, "TearFree", OPTV_BOOLEAN, {0}, FALSE},
....
#

There comes OPTION TearFree now!! (of course it is patched :-) )

Good Luck

BTW wayland is yet another choice.

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