Explicit GPU Synchronization for Xwayland now merged

tarsisurdi@lemmy.eco.br · 7 months ago

Explicit GPU Synchronization for Xwayland now merged

𝘋𝘪𝘳𝘬@lemmy.ml · 7 months ago

Cannot confirm any Nvidia unique X11 bugs since everything works perfectly fine since a decade or so for me – but tons of Nvidia unique Wayland bugs (same driver version and same card). I am not quite sure if Nvidia are really the bad one in this specific case.

My whole invironment is full of stuff to make Wayland actually work with Nvidia.

$ cat .config/labwc/environment 
GBM_BACKEND=nvidia-drm
__GLX_VENDOR_LIBRARY_NAME=nvidia
LIBVA_DRIVER_NAME=nvidia
QT_QPA_PLATFORM=wayland
WLR_NO_HARDWARE_CURSORS=1
XDG_CURRENT_DESKTOP=wlr
XDG_SESSION_TYPE=wayland

Not one single line of configuration is used for X11.

Rustmilian@lemmy.world · edit-2 7 months ago

Here’s just a tiny fraction of the Nvidia specific bugs on X11 :

https://github.com/NVIDIA/open-gpu-kernel-modules/issues/380

https://bbs.archlinux.org/viewtopic.php?id=283461

https://forums.developer.nvidia.com/t/16-bit-overlays-broken-with-x11-and-4xx-series-driver/128067

https://bugs.kde.org/show_bug.cgi?id=460341

labwc

You’re using a WM bud, wtf do you expect?

𝘋𝘪𝘳𝘬@lemmy.ml · 7 months ago

You’re using a WM bud, wtf do you expect?

I expect it to work, like Openbox works on X11.

Rustmilian@lemmy.world · edit-2 7 months ago

You miss the entire point of WMs then.
You’re complaining about 7 lines of configs when the entire point of WMs is for you to literally customize everything through configs.
Shit, you probably don’t even need half of that crap. QT_QPA_PLATFORM=wayland is already handled by qt, you only need that when running apps across Waypipe from a headless server environment. By default QT infers your environment from $DISPLY which is always :0 in Wayland.

𝘋𝘪𝘳𝘬@lemmy.ml · edit-2 7 months ago

Thank you for educating me on basic knowledge about WMs, which I use since ove a decade.

I just expect applications behave the same. I have literally not one single line of configuration for X11 in any of my configuration files.

I need this QT variable, otherwise Cura does not work properly.

Rustmilian@lemmy.world · edit-2 7 months ago

Cura as in this one? :

𝘋𝘪𝘳𝘬@lemmy.ml · 7 months ago

Exactly. When the variable is unset the UI shows massive artifacts and weird rendering glitches.

Rustmilian@lemmy.world · edit-2 7 months ago

I don’t see any graphical glitches on my hardware.
Perhaps you’re still on the qt5 version?
Maybe a bug with your Nvidia driver?
Perhaps your WM doesn’t have explicit sync yet and your card & driver needs it in this particular case? Perhaps it’s running under XWayland?

Wayland#Qt :
While it shouldn’t be necessary, to explicitly run a Qt application with the Wayland plugin, use -platform wayland or QT_QPA_PLATFORM=wayland environment variable.

As it says above, it should really be inferred by default. Something weird is going on here.