GNOME Optimizations Continue In Striving For Faster 4K Experience

[mppix]

What would be nice as well is wayland not screwing up videos on 4k60Hz. They run at twice the speed and with a high-pitched sound. I can't play anything from embedded videos to movies/shows in any media player. Works fine in 4k30.

wayland can't be deemed ready if it can't play videos on 4k60.

This certainly works for me (4K60 gnome wayland on a Skylake i7 with debian buster as well as on a 9th gen i7 Intel Laptop with debian bullseye)...
Must be something else, maybe distro or DE?

[Mez']

This certainly works for me (4K60 gnome wayland on a Skylake i7 with debian buster as well as on a 9th gen i7 Intel Laptop with debian bullseye)...
Must be something else, maybe distro or DE?

If that's the case, I won't blame wayland per se, but more time is still required nonetheless for other bits to adapt.
I suppose amdgpu or vaapi/vdpau might have to do with it then. Other than that I don't see why wayland 4k60 would be the only config in which it doesn't work (wayland 4K30 and X11 4k60 are both fine).
I would gladly report a bug but I don't want to watch a table tennis game where the blame would be rejected between protagonists.

[discordian]

1. the shell does not use GTK

It does, they to uninstall libgtk-3-0 while keeping the shell.

2. the recent MRs from Daniel were quite small and simple in nature. IMO they show a rather good design (as it allows these optimizations) and at the same time a lack of systemic testing and measuring. So indeed nice to see him filling that gap to a certain degree.

Compare it with a toolkit that has a proper design, and its still a slow resource hog.
Buggy aswell, as Nautilus still regularly crashes, displays stale content, search is getting stuck infinitely.

[jo-erlend]

It does, they to uninstall libgtk-3-0 while keeping the shell.

What is GTK used for in Gnome Shell?

[jo-erlend]

Just imagine what GNOME could have been today, if Canonical had embraced it sooner.

Canonical always embraced Gnome Shell. They were not allowed to contribute. Everything was blocked. I have still never seen any credible explanations for why it was deemed critical that Gnome not support exportable menus, for instance. That caused the divide because Canonical had to maintain its own patches, making it more difficult to support Unity on other distros.

The attacks on Canonical are nearly always hypocritical and based on ignorance.

[treba]

It does, they to uninstall libgtk-3-0 while keeping the shell.

Ok, I'll correct myself: the shell does use GTK, but mostly for things like theming, the legacy tray area and stuff like that. It mostly uses its internal toolkit, ST, and its fork of Clutter. The nice improvements in GTK4 will not have a direct effect on the shell and its performance.

Compare it with a toolkit that has a proper design, and its still a slow resource hog.
Buggy aswell, as Nautilus still regularly crashes, displays stale content, search is getting stuck infinitely.

I'm not sure what you are talking about, but to me you seem to be confused about the difference between the shell, gtk and gtk-based applications

[mppix]

If that's the case, I won't blame wayland per se, but more time is still required nonetheless for other bits to adapt.
I suppose amdgpu or vaapi/vdpau might have to do with it then. Other than that I don't see why wayland 4k60 would be the only config in which it doesn't work (wayland 4K30 and X11 4k60 are both fine).
I would gladly report a bug but I don't want to watch a table tennis game where the blame would be rejected between protagonists.

TBH, I have no idea if any of my systems run HW acceleration for video behind the scene but CPU usage is very much in check. Some setup information if it is helpful
- Desktop: Debian 10; Gnome/Wayland runs on Intel iGPU with 4K60; 2xTitan Xp for GPU compute with complete Nvidia 440.x driver suite (mainly used for cuDNN machine learning but also for darktable, blender, etc acceleration).
- Laptop: Debian 11 (testing); Gnome/Wayland runs again on Intel iGPU with 4K60 with 2x scaling
Happy to help if there is a simple way to check/test HW acceleration...

[discordian]

Ok, I'll correct myself: the shell does use GTK, but mostly for things like theming, the legacy tray area and stuff like that. It mostly uses its internal toolkit, ST, and its fork of Clutter. The nice improvements in GTK4 will not have a direct effect on the shell and its performance.

Then Mutter & its integration with GTK are at fault. All part of the Gnome Projects, I never brought up the gnome-shell, you did.
Everything is involved to paint the UI, the smartest thing would be to skip the parts that aren't visible, that's where the scenegraph kicks in.

I'm not sure what you are talking about, but to me you seem to be confused about the difference between the shell, gtk and gtk-based applications

I have to run all of those, you know what the sum of those part is called (Hint: Its in the topic ) but I guess you need to divert criticism instead of addressing it.

[Zan Lynx]

What would be nice as well is wayland not screwing up videos on 4k60Hz. They run at twice the speed and with a high-pitched sound. I can't play anything from embedded videos to movies/shows in any media player. Works fine in 4k30.

I am running Ubuntu 20.04, Gnome in Wayland mode, on a 4K television (a 2019 LG OLED) using an AMD Vega 56. Videos all play correctly in Firefox or Totem.

I also run Fedora 32 on a laptop. Also gnome-shell, wayland, Intel iGPU. Videos work there too.

And the Raptor Talos II with Power9 CPUs and a Radeon Pro WX7100 (essentially an RX580) runs Fedora 32, Wayland Gnome, and plays videos correctly.

Whatever is going on with your setup is somehow specific to one of your hardware devices or a configuration you made.

[treba]

I never brought up the gnome-shell, you did. ...(Hint: Its in the topic ) but I guess you need to divert criticism instead of addressing it.

The topic is Gnome Shell and Mutter. Admittedly Michael just wrote GNOME. But the related work from Daniel is all about Gnome Shell, Mutter, sometimes GJS. He doesn't do GTK performance work so far.