[PATCH 1/2] drm/radeon: Use drm_vblank_off/on to fix vblank counter trouble.

[Michel Dänzer]

On 21.01.2016 17:16, Mario Kleiner wrote:
> 
> This patch replaces calls to drm_vblank_pre/post_modeset in the
> drivers dpms code with calls to drm_vblank_off/on, as recommended
> for drivers with hw counters that reset to zero during modeset.

Sounds like you fell for the drm_vblank_on/off propaganda. :( This was
working fine with drm_vblank_pre/post_modeset, that it broke is simply a
regression.


I'm not against switching to drm_vblank_on/off for 4.6, but it's not a
solution for older kernels.


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer