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This reverts commit6c9e14ee9f. This reverts commitd5070c9b29. This reverts commit89c6ea2006. The VLINE interrupt doesn't work correctly on G200SE-A (at least). We have also seen missing interrupts on G200ER. So revert vblank support. Fixes frozen displays and warnings about missed vblanks. [ 33.818362] [CRTC:34:crtc-0] vblank wait timed out From the vblank code, the driver only keeps the register constants and the line that disables all interrupts in mgag200_device_init(). Both is still useful without vblank handling. Reported-by: Tony Luck <tony.luck@intel.com> Closes: https://lore.kernel.org/dri-devel/Zvx6lSi7oq5xvTZb@agluck-desk3.sc.intel.com/raw Tested-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241015063932.8620-1-tzimmermann@suse.de