[Bug 42035] no way to turn off vsync

[Michal Suchanek]

2011/10/27 Daniel Vetter <daniel at ffwll.ch>:
> On Wed, Oct 26, 2011 at 12:15:37PM +0200, Michel Dänzer wrote:
>> It's probably waiting for a DRM VBLANK event. The question then becomes
>> why that never arrives.
>
> I've just strolled through the code and afaics we don't kick any pending
> waiters when we disable the vsync. At least they'll immediately requeu
> themselves when the desired vblank hasn't arrived yet. I suspect the event
> code is suffering from the same issue.

With a newer kernel the applications don't get stuck anymore, however.

Thanks

Michal