[PATCH xserver] present: disable page flip only when a slave crtc is active

[Yu, Qiang]

On 02/02/17 07:04 PM, Yu, Qiang wrote:
>
> Thanks Michel, can we put this fix to 1.19 branch?

Looks like it broke the DMX build:
https://patchwork.freedesktop.org/patch/136700/
[yuq] Oh, sorry for that.

Also, I think (though I'm obviously biased on this one :) it would be
even better for https://patchwork.freedesktop.org/patch/136239/ and
https://patchwork.freedesktop.org/patch/136238/ to go into 1.19, in
which case backporting your fix isn't strictly required.
[yuq] That's wonderful, thanks Michel.

Regards,
Qiang