I cannot get gdm to work in a VM either; it starts, but I just see a
black screen.
I tried under LXDM in Debian sid, but that doesn't seem to register any
session at all ("w" is empty except for the table header).
I also tried gdm3 on sid with the default (Cirrus), -vga virtio, and
-vga vmware, and in none of these cases it starts. Maybe it needs some
configuration after apt-get install gdm. So perhaps someone could try
this under Ubuntu GNOME?
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https://bugs.launchpad.net/bugs/1380364
Title:
lightdm writes XDISPLAY instead of tty device name to utmp record
Status in Light Display Manager:
Fix Released
Status in Light Display Manager 1.10 series:
New
Status in Light Display Manager 1.14 series:
New
Status in Light Display Manager 1.16 series:
New
Status in lightdm package in Ubuntu:
Fix Released
Bug description:
Until now, I've been using good old gdm-2.20.11 and wanted to switch
to lightdm-1.12.1. If you list users logged in via the 'w' or 'who'
command, it shows you who is logged in and what they are doing.
Especially, on which tty. Example:
USER TTY LOGIN@ IDLE JCPU PCPU WHAT
user tty9 03Oct14 16days 1:52m 0.01s /bin/sh /etc/xdg/xfce4/xinitrc
-- /etc/X11/xinit/xserverrc
Also, 'who' gives this information:
user tty9 Oct 3 22:34 (:20)
However, lightdm does not follow that tradition. Instead, it prints :0
instead of the actual tty, and something weird for other values (like
?xdm? instead of the idle value etc.)
'w':
USER TTY LOGIN@ IDLE JCPU PCPU WHAT
user :0 19:50 ?xdm? 23.82s 0.01s /bin/sh /etc/xdg/xfce4/xinitrc
-- /etc/X11/xinit/xserverrc
Note: :0 is not tty, it is DISPLAY env.
'who':
user :0 2014-10-12 19:50 (:0)
The same for this one. I wonder, is this a bug (to me it seems so,
because for every other program the correct values are reported)?
It is a problem for me, because I have written scripts for automation
etc. that parse w and who output to determine which tty is in use by
which DISPLAY.
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