[PATCH 1/3] RFC: drm: Restrict vblank ioctl to master

[Daniel Vetter]

On Wed, Jul 13, 2016 at 06:43:37PM +0900, Michel Dänzer wrote:
> On 13.07.2016 15:50, Rainer Hochecker wrote:
> > Whatever action is taken, it is fine for Kodi. GLX+OML_sync_control is
> > not an option anymore because we need EGL for vaapi. But we can fall
> > back to the invisible window for getting vsync. I never tried using EGL
> > and GLX in the same application, different windows. Any reason why this
> > should not work?
> 
> An invisible window may not synchronize with the same output refresh
> cycle as your output window.

Why do you need EGL for libva? Besides that noob question from me, no idea
how well EGL/GLX can interop at all ...
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch