<div dir="ltr"><div><div><div><div>Probably a combination of factors:<br></div> * It never got into the official spec (I didn't want to push it in without some review and hopefully a second implementation)<br></div> * It requires coordinated window manager and toolkit changes to get any benefit<br></div> * The original spec fixed a huge problem with opaque resizing where the application could lag arbitrarily behind the window manager - the extended spec just makes things look better when you look close.<br></div> * People who really care about these things were already beginning to put their efforts into Wayland<br><div><div><div><div><div><div><div><div><br></div>- Owen<br></div></div></div></div></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Dec 1, 2016 at 4:53 AM, Pekka Paalanen <span dir="ltr"><<a href="mailto:ppaalanen@gmail.com" target="_blank">ppaalanen@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Wed, 30 Nov 2016 15:12:54 -0500<br>
Owen Taylor <<a href="mailto:otaylor@fishsoup.net">otaylor@fishsoup.net</a>> wrote:<br>
<br>
> Hi Pekka,<br>
><br>
> I don't have a lot of of commentary to add here. Certainly getting the<br>
> frame-sync protocols right does require integration between Xwayland and<br>
> the compositing manager. I don't think there's that much virtue in spending<br>
> time on the extended version of the sync protocol and<br>
> _NET_WM_FRAME_TIMINGS, because, to my knowledge, those are implemented only<br>
> by GTK+ 3, and most GTK+ 3 apps will be running as native Wayland apps. On<br>
> the other hand, gtk2 and qt4 X clients will be around to exercise the basic<br>
> version of the protocol for the forseeable future.<br>
<br>
</span>Hi Owen,<br>
<br>
that's valuable, saves me the effort of designing for and maybe<br>
implementing the extended version. :-)<br>
<br>
I'm kind of curious though why no other toolkit saw the benefit of the<br>
extended sync protocol.<br>
<br>
<br>
Thanks,<br>
pq<br>
</blockquote></div><br></div>