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

[Rainer Hochecker]

GLX can't interop with libva in a reasonable way. That was the reason why
we switched to EGL
Am 13.07.2016 11:48 schrieb "Daniel Vetter" <daniel at ffwll.ch>:

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
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