I'm on Fedora 22 and enabled test-updates and plasma-5-beta. I've done this to stay "a hundred bugs ahead" and recently, switching users is no longer possible from either a user session or the lock screen. If the only user logged in, logs out, any other user can then log in. While a user is logged in, in no way can users then switch successfully.

New sessions are created when you attempt to switch but no log in screen ever shows up. It's usually a blank screen or a non-responsive terminal or boot up log. Anyone know what could be happening and hopefully how to fix?

This bug was reproducible across two different machines both using Nvidia proprietary drivers. I've solved it doing the following. I ran sudo nvidia-xconfig and then had to edit the newly created /etc/X11/xorg.conf and comment out the Section "Files" to EndSection. I then restarted sddm. From here on out I was then able to switch users from inside an active KDE session and from any lock screen.

A new problem arises though. It's not a big issue but from inside an active session, when attempting to switch users, the drop down menu of sessions to choose from makes absolutely no sense. It's just a drop down menu of noise. Still better than being unable to switch but for people that have no idea what's happening, it should be a terrible way to switch users.

It is indeed ridiculous that the most sophisticated UI for linux still have such a buggy handling of multiple users.

In theory, it is supposed to be excellent: using F keys for quickly switch between them, having the Switch User option in the menu and in the unlock dialogs, etc. However, it is so buggy it doesn't work about 70% of the times.

i'm using mostly Mint 17.1 but i experienced it everywhere.

The original post, beyond a complain about the menu ebing too complex (no idea what's that supposed to mean) was about an issue with the X11 setup, likely due to nvidia driver.
I would bet that the core feature was/is the usage of framebuffer consoles, what's not supported by the nvidia blob.
https://wiki.archlinux.org/index.php/GR ... ramebuffer

luebking wrote:The original post, beyond a complain about the menu ebing too complex (no idea what's that supposed to mean) was about an issue with the X11 setup, likely due to nvidia driver.
I would bet that the core feature was/is the usage of framebuffer consoles, what's not supported by the nvidia blob.
https://wiki.archlinux.org/index.php/GR ... ramebuffer

I'm sorry, as a user of KDE since 3.5 and with zero influence on where it's going, it's hard to contain my excitement about it when things breaks (which it often does). I have a 10 and a 6 year old on Fedora 22 KDE and when I come across a problem like this, I always think of them first (can they fix or workaround this on their own). I know they can't (they don't sudo) and that's when I just sort of lose a bit more faith and patience. If you want to be somewhere in 10 years, do this for the kids, right?

I'm sorry about that.

I no longer have the user switching problem (had something to do with xorg.conf) and I can only recall this from memory. What happened was every time a new user would try to log into an already running system, krunner would pop up at first with "new session" but since it didn't work, any attempt to log a new user in would result in a new menu item showing up under krunner's "switch user" which (going from memory) would look something like this (unused vt1, tty2, unused vt2 tty3, etc) and these items would pile up if you try to switch users several more times. There would come a point where you'd go to switch users (knowing you're most likely going to fail) and see a menu pop up that made no sense and did nothing anyway.

But I personally fixed my issue and I can successfully log other users in and I posted my solution in comment 2.

It's unfortunate that this is still not fixed. I have been looking for a solution to this and this problem seems to have existed as far back as 2015 with no real solution to the problem (and it shouldn't be a problem at this point).

I have been distro hopping in our hopes to replace all of our computers in the office with Linux. We have found software alternatives to everything that we used to use on Windows. We have also tested printers that works with Linux. So far in my tests, Fedora is the only distro with KDE that is compatible with JumpCloud, which is a must have for us. I really really love KDE and Fedora and would hate to move away from them just because the User Switching feature is broken.

Hope I can find a KDE and JumpCloud supported distro soon.

Please see viewtopic.php?f=225&t=171528