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I'm on a Fedora Server 37 iso, so no DM/DE is pre-installed.

  1. Install wayland, lightdm, and lightdm-gtk-greeter.
  2. Edit lightdm's config to use lightdm-gtk-greeter
    • (Line 102) change greeter-session=example-gtk-gnome to greeter-session=lightdm-gtk-greeter
    • (Line 107) change user-session=default to user-session=qtile
  3. Try to start graphical.target, and it fails.

  • From sudo tail -n100 /var/log/lightdm/lightdm.log, here's a chunk of the relevant part. It tries to start an xserver, even though I don't have one installed and want to use wayland instead. I can't find a config option to tell it to use wayland either. Did I miss it, or is there another way to do this?

    [+0.00s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.00s] DEBUG: _g_io_module_get_default: Found default implementation local (GLocalVfs) for ‘gio-vfs’
[+0.00s] DEBUG: Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3)
[+0.00s] DEBUG: Monitoring logind for seats
[+0.00s] DEBUG: New seat added from logind: seat0
[+0.00s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.00s] DEBUG: Seat seat0 has property CanMultiSession=no
[+0.00s] DEBUG: Seat seat0: Starting
[+0.00s] DEBUG: Seat seat0: Creating greeter session
[+0.00s] DEBUG: Seat seat0: Creating display server of type x
[+0.00s] DEBUG: Using VT 1
[+0.00s] DEBUG: Seat seat0: Starting local X display on VT 1
[+0.00s] DEBUG: XServer 0: Logging to /var/log/lightdm/x-0.log
[+0.00s] DEBUG: XServer 0: Can't launch X server X -core -noreset, not found in path
[+0.00s] DEBUG: XServer 0: X server stopped
[+0.00s] DEBUG: Releasing VT 1
[+0.00s] DEBUG: Seat seat0: Display server stopped
[+0.00s] DEBUG: Seat seat0: Can't create display server for greeter
[+0.00s] DEBUG: Seat seat0: Session stopped
[+0.00s] DEBUG: Seat seat0: Stopping display server, no sessions require it
[+0.00s] DEBUG: Seat seat0: Stopping
[+0.00s] DEBUG: Seat seat0: Stopped
[+0.00s] DEBUG: Failed to start seat: seat0

Edit: This github issue is someone's log that gets a lot farther than I do. My log above, you see Seat seat0: Creating display server of type x, but theirs is type wayland. This is the main thing I'd like to figure out. However later in their log, they call /etc/lightdm/Xsession ... still too. Is there a way to install a tiny subset of x11 to work, or do I need an entire x server package along with wayland to get LightDM running?

Cameron Showalter
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  • Maybe these two will help: https://www.reddit.com/r/antergos/comments/9h7grw/how_to_wayland_with_lightdm/ - https://wiki.archlinux.org/title/LightDM – Peregrino69 Apr 09 '23 at 22:57
  • **With the redit link**: I've done the equivalent for steps 1-4. (I have a `qtile.desktop` inside wayland-sessions). Step 5 doesn't happen since it fails to start. :/ **With the archlinux link**: section 4 seemed promising. I was missing the `xorg-x11-server-Xephyr` package. It still gives the same error though. But I'm surprised it says "run LightDM as an X application", I thought the point of wayland was to avoid x11. – Cameron Showalter Apr 10 '23 at 00:35
  • That Wiki page explains both X and Wayland, hence that. You're not stumbling on 6.14? – Peregrino69 Apr 10 '23 at 05:42
  • lightdm doesn't support Wayland, your question makes no sense. It can start Wayland sessions but it cannot be run/used as a pure Wayland application. – Artem S. Tashkinov Apr 10 '23 at 07:33
  • @Peregrino69 yes, it's a fresh install so I have nothing in the xsessions dir, only wayland-sessions. – Cameron Showalter Apr 10 '23 at 18:39
  • @ArtemS.Tashkinov Thank you! I just added an edit at the end to gear the question towards that. Do you mean lightdm itself, so no greeter can do this? Or specifically lightdm-gtk-greeter? I'm surprised you'd want both installed. – Cameron Showalter Apr 10 '23 at 18:42
  • GDM can run in pure Wayland mode. The only Wayland DM AFAIK. – Artem S. Tashkinov Apr 11 '23 at 13:35

1 Answers1

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or do I need an entire x server package along with wayland to get LightDM running?

LightDM requires the full featured Xorg server.

You may want to install GDM, the only display manager which works in pure Wayland mode as of April, 2023.

Addendum: Fedora 38 contains a GIT version of SDDM which can work in Wayland mode as well. There's also an sddm-git Wayland enabled package in Arch.

Artem S. Tashkinov
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