[Pkg-xfce-devel] Bug#865121: LightDM restarts X.org when switching from an unmanaged X11 tty
mike.gabriel at das-netzwerkteam.de
Mon Jun 19 13:52:41 UTC 2017
I am working on porting Unity Greeter to greeter that is not so
heavily tied to Ubuntu, the name is Arctica Greeter. While doing my
work, I stumbled over a weird phenomenon.
My development environment is this:
Let LightDM with Arctica Greeter come up at boot time as default
1. Text based console login on tty1
2. STARTUP=i3 startx
I often have open consoles on tty2-tty6.
Then I switch between CTRL-ALT-F1, CTRL-ALT-Fn, ..., CTRL-ALT-F7 for
development and testing.
What do I expect?
My expectation is that whatever combination sequence of CTRL-ALT-F1
... CTRL-ALT-Fn ... CTRL-ALT-F7 I press, I can easily switch between
sessions, without disruptions, etc.
What do I observe?
However, when I switch back from tty1 (i3 X11 session) to tty7
(LightDM + Arctica Greeter) directly (not via a text based tty), the
X.org processes dies immediately (or gets killed, I don't know) and
X.org restarts anew. The greeter appears, I can log in.
The problem is that this restart of X.org on tty7 happens while
LightDM is still showing the greeter, BUT ALSO WHEN I AM LOOGGED INTO
A DESKTOP SESSION.
At first, I was searching for a reason of this issue in the Arctica
Greeter code, but later I tried other greeters. They show the same
Has anyone observed this issue, too? Any idea how to track this down?
mike gabriel, herweg 7, 24357 fleckeby
mobile: +49 (1520) 1976 148
landline: +49 (4354) 8390 139
GnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22 0782 9AF4 6B30 2577 1B31
mail: mike.gabriel at das-netzwerkteam.de, http://das-netzwerkteam.de
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