On Sun, Feb 11, 2024 at 1:50 AM Kilian Hanich <khanich.opensource(a)gmx.de> wrote:
Am 10.02.24 um 09:47 schrieb Neal Gompa:
> Technically, turning off display sync completely is quite difficult
> right now since the actual driver stack in Linux underneath everything
> (both Wayland and X11) uses implicit sync right now (Linux kernel
> drivers, Mesa drivers, etc.).
>
Interesting considering that I once read (but haven't fact check) that
the Vulkan spec explicitly requires explicit sync instead of implicit,
even if you for parts of it.
I don't know enough about Vulkan to confidently say one way or
another. Especially since I'm pretty sure parts of it are one and the
other.
> That said, there's a move to support explicit sync in
Wayland[1], and
> the first steps of that for KWin have been written up as a merge
> request[2]. Once there's an agreed upon mechanism for explicit sync,
> it would be possible to support something like that.
>
> [
1]:https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_reque...
> [
2]:https://invent.kde.org/plasma/kwin/-/merge_requests/4800
Interesting read. I will just hope that this won't be something which
ends up in "noone actually still looks at it"-land as some things
sometimes end up in because people focused on different things and then
forgot about it (well, kind natural for volunteer projects I guess).
That's not going to happen because Direct3D 12 requires explicit sync.
That's been driving the change to support it in the Linux graphics
stack in the first place.
--
真実はいつも一つ!/ Always, there's only one truth!