Re: GNOME on Wayland current status

[ng0 <ng0@n0.is>]

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Mark H Weaver transcribed 2.4K bytes:
> Hi Rutger,
> 
> Rutger Helling <rhelling@mykolab.com> writes:
> 
> > I've sent in a patch (#29943) that adds a small paragraph to the
> > documentation about the current situation.
> >
> > I believe there was a plan to replace SLiM with GDM for the default
> > login manager. Getting GDM to work properly should probably be the
> > first step since it has great Wayland support. From what I know GDM can
> > default to Wayland and falls back automatically to X11 if for some
> > reason Wayland doesn't work.
> >
> > Alternatively we could switch to SDDM as the default for now, until GDM
> > is ready.

What about lightdm? Does it not offer wayland support?
We have no service for it yet, but as far as I understand the greeters
(like 'lightdm-gtk-greeter') writing your own theme is relatively standardized.

> I recently switched my x86_64 GuixSD laptop to use SDDM, so I could try
> out GNOME on Wayland.  It mostly works, but there are still a few
> problems:
> 
> * Even after logging in, SDDM is still visibly running within
>   xorg-server on VT 7, while Wayland is running on VT 8.  If you switch
>   back to VT 7, you can see the login screen still there, with the clock
>   showing the time that you logged in instead of the current time.  I'm
>   not sure if there are security implications to this, but it's
>   certainly a waste of system resources.
> 
> * SDDM is based on Qt, so it substantially increases the closure size of
>   the system, as well as memory usage since SDDM and Xorg-server
>   continues to run in another VT during your entire session.
> 
> * The "Sound" panel of the GNOME settings is non-functional.  Whenever I
>   try to change anything at all in that panel, it crashes.
> 
> * Startup notification for several GNOME programs is broken, e.g. GNOME
>   Terminal, Files (Nautilus), Videos (Totem), and possibly other.  When
>   I launch any of those programs, although the program immediately
>   starts up, GNOME Shell doesn't seem to realize this, and for quite
>   some time the spinner continues to indicate that the application is
>   starting up, and it doesn't show up in the Alt-Tab application
>   switcher.  If you switch to another application, you cannot switch
>   back to it via Alt-Tab.
> 
> * As far as I know, we haven't yet themed SDDM to include our beautiful
>   GuixSD login screen artwork.  It would be a shame to lose that by
>   default.
> 
> On the other hand, I'm pleased to report that under Wayland, tearing no
> longer occurs during video playback, scrolling, etc.
> 
> Anyway, it's very exciting to see progress on this, but I'm reluctant to
> bring Qt into our default system closure, and furthermore I'd be
> inclined to wait until more of the aforementioned problems are
> addressed.
> 
> What do you think?
> 
>       Mark
> 
> 

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