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List:       fedora-devel-list
Subject:    Re: F34 Change proposal: Wayland by Default for KDE Plasma Desktop (System-Wide Change)
From:       Ondrej Mosnacek <omosnace () redhat ! com>
Date:       2020-09-10 16:07:52
Message-ID: CAFqZXNvRCkwc0CPEg-4Kw_cue3zDs4k2FwT+yLkHa6VS63sb8A () mail ! gmail ! com
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On Thu, Sep 10, 2020 at 5:27 PM Silvia Sánchez <bhkohane@gmail.com> wrote:
> Ondrej,
> 
> You need to install Kwin Wayland and another package that will provide the backend.

It seems all the necessary packages were pulled in as dependencies via
plasma-workspace-wayland.

$ sudo dnf info --installed *wayland* | grep Name
Name         : kf5-kwayland
Name         : kwayland-integration
Name         : kwin-wayland
Name         : libwayland-client
Name         : libwayland-client
Name         : libwayland-cursor
Name         : libwayland-cursor
Name         : libwayland-egl
Name         : libwayland-egl
Name         : libwayland-server
Name         : libwayland-server
Name         : plasma-workspace-wayland
Name         : qt5-qtwayland
Name         : qt5-qtwayland-devel
Name         : xorg-x11-server-Xwayland

Looking at the available but not installed packages that match
*wayland* I don't see any that would be relevant.

> My experience wasn't the best, several apps crashed, effects stuttered or were very \
> slow, even typing felt slower.  But at least my desktop looked normal. One comment: \
> the logging out issue is not because of Wayland.  I have the same with Xorg, and \
> there are several bug reports pointing to the same issue.

Oh, thanks for the info! So I guess the only Wayland issue for me so
far is the messed up resolution/screen settings. Once I get past that
I'll probably see the "normal" known issues, too :)

> 
> Kind regards,
> Lailah
> 
> 
> 
> On Thu, 10 Sep 2020 at 12:24, Ondrej Mosnacek <omosnace@redhat.com> wrote:
> > 
> > On Tue, Sep 8, 2020 at 5:30 PM Ben Cotton <bcotton@redhat.com> wrote:
> > > https://fedoraproject.org/wiki/Changes/WaylandByDefaultForPlasma
> > > 
> > > == Summary ==
> > > Change the default session selection in SDDM to prefer the
> > > Wayland-based KDE Plasma Desktop session over the X11-based one.
> > > 
> > > == Owner ==
> > > * Name: [[User:Ngompa|Neal Gompa]], [[User:Rdieter|Rex Dieter]],
> > > [[User:Jgrulich|Jan Grulich]]
> > > * Email: ngompa13@gmail.com, rdieter@gmail.com, jgrulich@redhat.com
> > > * Product: KDE Spin
> > > * Responsible WG: KDE SIG
> > > 
> > > 
> > > == Detailed Description ==
> > > 
> > > With KDE Plasma 5.20, the KDE Plasma desktop environment has reached a
> > > point where nearly all commonly used features in the desktop and all
> > > major applications function in the Plasma Wayland environment on all
> > > major GPUs (including NVIDIA with the proprietary driver). Starting
> > > with Plasma 5.20 in Fedora 34, we will change the default
> > > configuration for Wayland and X11 Plasma sessions so that Wayland is
> > > preferred and used by default, while permitting the X11 session to be
> > > selected as the alternative desktop environment option.
> > > 
> > > == Feedback ==
> > > 
> > > ==== Is Wayland ready? ====
> > > Wayland has been used by default for Fedora Workstation (which uses
> > > GNOME) since Fedora 25. And while it was somewhat immature initially,
> > > today it is a very rock-solid experience on virtually everything
> > > Fedora Workstation runs on. The change in Fedora 25 kickstarted the
> > > drive to get everything working on Wayland, and the Workstation team
> > > succeeded beyond their wildest dreams. Firefox has been Wayland-native
> > > by default since Fedora 31 as well.
> > > 
> > > On the KDE side, serious work into supporting Wayland started shortly
> > > after GNOME switched to Wayland by default. Unlike GNOME, KDE has a
> > > much broader stack in its toolkit, and it has taken longer to get to a
> > > usable state. With the Plasma 5.20 release, the Wayland protocol for
> > > screencasting as well as middle-click paste finally are supported,
> > > completing the required feature set for switching to Wayland by
> > > default.
> > 
> > So yesterday I tried to log in to the KDE Plasma + Wayland session on
> > my laptop (F32) and the experience was unfortunately quite horrible...
> > 
> > 1. When I logged out of the X session, switched to Wayland on the
> > login screen, and logged in, I only got a black screen. After I
> > rebooted, I managed to login to the Wayland session (I have automatic
> > login after boot enabled), but...
> > 2. The desktop was all squeezed into a small 1024x786 rectangle in the
> > upper left corner of the screen (my screen is 1920x1080). So I opened
> > system settings to change the resolution, but...
> > 3. The screen settings were showing "manufacturer_TODO" and
> > "model_TODO" as the name of the screen and the only resolution offered
> > was 1024x786.
> > 4. The window layout of my KDE session was not preserved (I think even
> > the distribution of windows to activities was lost). But I probably
> > shouldn't expect this to work...
> > 5. Logging out of the Wayland session gave me just a black screen with
> > blinking cursor, no login screen.
> > 
> > Reading the other posts in this thread it seems I'm the only one
> > experiencing such serious breakage (maybe except 4., which is
> > understandable), so I'm wondering if I did something wrong... I simply
> > installed plasma-workspace-wayland, logged out, and then logged in
> > selecting "Plasma (Wayland) (Wayland)" from the session dropdown.
> > 
> > --
> > Ondrej Mosnacek
> > Software Engineer, Platform Security - SELinux kernel
> > Red Hat, Inc.
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-- 
Ondrej Mosnacek
Software Engineer, Platform Security - SELinux kernel
Red Hat, Inc.
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