Fedora Switching Away From Intel X.Org DDX Driver

[Sonadow]

IIRC, it won't affect anyone using Wayland. It maybe a slight slowdown for X users but this will become a non-issue as Wayland replaces X.

Isn't the current Wayland implementation on Gnome, KDE and Weston still Xwayland based? Won't this have an effect?

[TingPing]

The intel driver has the Tear Free option which eliminates all tearing for me. Does anyone know how to achieve the same thing with modesetting?

Modesetting uses DRI3 by default so just use a window manager that supports DRI3+Present. Gnome-Shell should be tear free out of the box though note fullscreen windows unredirect by default bypassing that but you can use this extension to disable that: https://github.com/kazysmaster/gnome...ble-unredirect

[TingPing]

Can someone explain how is the rendering working with Wayland? What is the current back end for GTK?

Sorry for the off topic

Gtk2/3 renders using Cairo which uses OpenGL for acceleration on Wayland. Gtk4 is moving towards rendering with OpenGL directly also.

[TingPing]

Isn't the current Wayland implementation on Gnome, KDE and Weston still Xwayland based? Won't this have an effect?

No, For one modern Qt and Gtk applications are native Wayland applications not "XWayland based" but also XWayland always uses glamor for acceleration.

[Mystro256]

Isn't the current Wayland implementation on Gnome, KDE and Weston still Xwayland based? Won't this have an effect?

XWayland always uses GLAMOR for 2d, regardless of drivers, while native Wayland should use a different methodology not requiring user mode acceleration layers such as SNA or GLAMOR.

GNOME's current implement does depend on XWayland for some functionality, but that's only maintain legacy support for X applications and should not affect performance of non-legacy. Weston should not depend on XWayland unless you want to run X applications and I have no idea how KDE implements this.

[elvenbone]

The intel driver has the Tear Free option which eliminates all tearing for me. Does anyone know how to achieve the same thing with modesetting?

I do not know, which config it changes, but KDE Plasma has a GUI setting for that (System Settings > Display > Compositor > Tearing/VSync).
It works just fine with modesetting on an Intel Skylake laptop and also with amdgpu on a desktop with AMD DGPU for me, so I guess it's a driver-independent X-org-option?

[pq1930562]

Modesetting uses DRI3 by default

Really:

https://bugs.freedesktop.org/show_bug.cgi?id=98875

?

The intel driver has the Tear Free option which eliminates all tearing for me. Does anyone know how to achieve the same thing with modesetting?

See:

https://bugs.freedesktop.org/show_bug.cgi?id=98876

[gwgwg]

SNA accelerates xrender, which will hopefully be deprecated soon together with xwayland. Performance critical applications should avoid X in the long term.

Anybody needing color management has no choice but to stick to X11, since Wayland and XWayland doesn't support Linux color management tools, and the prospect of such support being added to Wayland is distant. (Color management is something those doing serious editing of images, photo's, video or doing publishing work often require.)

[cj.wijtmans]

Anybody needing color management has no choice but to stick to X11, since Wayland and XWayland doesn't support Linux color management tools, and the prospect of such support being added to Wayland is distant. (Color management is something those doing serious editing of images, photo's, video or doing publishing work often require.)

monitors should allow gamma and brightness controll :/ why is it not standard yet?

[Mystro256]

Anybody needing color management has no choice but to stick to X11, since Wayland and XWayland doesn't support Linux color management tools, and the prospect of such support being added to Wayland is distant. (Color management is something those doing serious editing of images, photo's, video or doing publishing work often require.)

Does gnome-color-manager not allow this? Or is it missing something (I've never played with it that much myself)? Or are you referring to another Wayland implementation that's not GNOME?