This isn't actually specific to the guest session. I also get this when
running another "real user" session. .xsession-errors complains that
unity-window-decorator fails to start because it cannot open display
:0.0. This is not surprising, as :0.0 is my primary X session of my own
user, and the current X $DISPLAY is :1 or :2. When I start unity-window-
decorator in a terminal, it works just fine, though.
Didier, could that be related to the startup checks which session to
use? Does anything hardcode display :0 there? I can't see anything
obvious in 01_unity_window_decorator.patch, but this issue reproduces
perfectly well for me as well.
** Summary changed:
- Title bar missing in GTK+ dialogs
+ unity-window-decorator doesn't start on secondary X session
** Package changed: gdm-guest-session (Ubuntu) => compiz (Ubuntu)
** Changed in: compiz (Ubuntu)
Status: New => Confirmed
** Changed in: compiz (Ubuntu)
Importance: Undecided => High
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https://bugs.launchpad.net/bugs/730495
Title:
unity-window-decorator doesn't start on secondary X session
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