I've got a home desktop PC that often has several members of the family logged in to it at the same time, with a mixture of LXDE, GNOME, and FVWM(from .xsession) sessions. It uses gdm3 as a display manager.
Since an upgrade to stretch, Switch User doesn't work. None of these work: - "Switch User" option in the LXDE logout menu. - "New Login" button in xscreensaver, - "Switch User" button in gnome-screensaver, - gdmflexiserver (It does work in GNOME) I've also tried other display managers - LDXM, lightdm, sddm, wdm, xdm - each has a switch user problem with some of the desktop sessions. Also, only gmd3 seems to remember the session choices on a per user basis. Any suggestions? (There is also a problem that LXDE uses light-locker, which, when used with gdm3, just gives a blank screen with no way to get out of it. I've disabled light-locker for LXDE in /etc/xdg/autostart/light-locker.desktop to get around this.) --
