Comment # 8 on bug 96737 from poma

w/ modeset sameo

/etc/X11/xorg.conf.d/modeset.conf
Section "Device"
        Identifier "video0"
        Driver "modesetting"
        Option "AccelMethod" "none"
EndSection

/var/log/Xorg.0.log
(**) modeset(0): Option "AccelMethod" "none"

glxinfo:
OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.8, 128 bits)


What in Acceleration brakes VT switching?