LWN's unreliable predictions for 2022

Posted Jan 8, 2022 12:32 UTC (Sat) by mkbosmans (subscriber, #65556)
In reply to: LWN's unreliable predictions for 2022 by Wol
Parent article: LWN's unreliable predictions for 2022

What is exactly the problem with sddm?
I'm using OpenSUSE with sddm and plasma on X and have multiple simultaneous users working in the default setup. Is this somehow an unsupported, but might work kind of thing?

LWN's unreliable predictions for 2022

Posted Jan 8, 2022 13:37 UTC (Sat) by Wol (subscriber, #4433) [Link] (4 responses)

You're running on X. I guess plasma/X gives you the option of firing up sddm on tty8, tty9 etc.

I'm running plasma-wayland, which as far as I can tell is running on tty1. I don't have the option of firing off a second sddm on tty2. And from what I can make out, it's not possible.

Note my statement *from what I can make out*. If I'm wrong, I'd love to be enlightened.

Cheers,
Wol

LWN's unreliable predictions for 2022

Posted Jan 8, 2022 16:04 UTC (Sat) by mkbosmans (subscriber, #65556) [Link] (2 responses)

Ah yes, I didn't consider that the different TTYs would obiously be running separate X servers.
It is rather convenient to be able to switch users with a simple CTRL+ALT+Fn and leave each user either locked or unlocked depending on preference. (This is on our shared familiy computer)

So good to know that multiple active sessions is not supported on wayland+sddm+plasma at the moment. Each time I test wayland, I need to switch back to X because of some breakage or missing things. Last time it was font scaling and multiple plasma activities. I always presumed that it was due to a combination of my distribution having older versions of some components and perhaps video card drivers, but I will keep revisiting wayland periodically.

LWN's unreliable predictions for 2022

Posted Jan 8, 2022 17:35 UTC (Sat) by Wol (subscriber, #4433) [Link]

I believe lightddm can do it, but I haven't got round to trying it.

(The other problem I have is I want this system to run multi-head, but if I stick two graphics cards in, it seems grub gets confused and I don't see a boot screen ...)

Cheers,
Wol

LWN's unreliable predictions for 2022

Posted Jan 10, 2022 18:24 UTC (Mon) by jezuch (subscriber, #52988) [Link]

> Each time I test wayland, I need to switch back to X because of some breakage or missing things. (...) but I will keep revisiting wayland periodically.

So do I and so will I. For me it was some problems with switching ttys (don't remember the specifics, because I do it basically only in emergencies) and crashing when waking up from suspend (this one, on the other hand, was a solid deal breaker).

Sad 😔

LWN's unreliable predictions for 2022

Posted Jan 9, 2022 19:49 UTC (Sun) by jem (subscriber, #24231) [Link]

With Plasma you can start a new session with "Switch user" in the menu. You are prompted to log in as a new user. To switch back to the old session, choose "Switch user" again. This works regardless if you have chosen Plasma (X11) or Plasma (Wayland) in the initial SDDM greeter screen.