unity-system-compositor does not recover the VT when terminated; screen stays black and can't VT switch any more

Bug #1548211 reported by Daniel van Vugt
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Unity System Compositor
New
Undecided
Unassigned
unity-system-compositor (Ubuntu)
New
Undecided
Unassigned

Bug Description

unity-system-compositor does not recover the VT when terminated.

Test case:
Kill unity-system-compositor politely via SIGTERM (sudo kill ...)

Expected: The login prompt to reappear and Alt+Fn switching to work.
Observed: Screen stays black and VT switching via Alt+Fn fails (or Ctrl+Alt+Fn)

Workaround:
sudo chvt 7
sudo chvt 1

summary: - unity-system-compositor does not recover the VT when terminated
+ unity-system-compositor does not recover the VT when terminated; screen
+ stays black and can't VT switch any more
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