please reopen if this is still an issue
** Changed in: systemd (Ubuntu)
Status: Incomplete => Won't Fix
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** Changed in: systemd
Status: New => Fix Released
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Title:
Second unity8 user session hangs with a black
** Changed in: systemd (Ubuntu)
Assignee: Michael Terry (mterry) => (unassigned)
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Title:
Second unity8 user
> That said, if we're going to support an arbitrary number of users then
giving each one a different VT does not scale. USC should have a switch-
session key combo of its own (similar to the existing Ctrl-Alt-Fn).
Well, we could give each user session its own VT up to our system VT
limit. Then
We could theoretically make the one USC instance appear (differently) on
multiple VTs. In tinkering with Mir's VT code I came to realize that VTs
are truly a virtual concept. If you ignore the existence of VTs then you
can still forcefully start up your system compositor on the screen.
Cooperating
** Changed in: systemd
Status: Unknown => New
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Title:
Second unity8 user session hangs with a black screen
** Changed in: canonical-devices-system-image
Milestone: u8c-z => u8c-2
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Title:
Second unity8 user session hangs
I filed the linked upstream bug. Lennart is on vacation for a couple
more weeks, so this won't see quick action. pitti pointed me at old bug
1192842 which is basically an old dupe.
All signs are pointing at this being an involved fix that will require
upstream buy-in. So I'm inclined to set
** Bug watch added: github.com/systemd/systemd/issues #5631
https://github.com/systemd/systemd/issues/5631
** Also affects: systemd via
https://github.com/systemd/systemd/issues/5631
Importance: Unknown
Status: Unknown
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** Changed in: canonical-devices-system-image
Status: Triaged => In Progress
** Changed in: systemd (Ubuntu)
Assignee: (unassigned) => Michael Terry (mterry)
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** Changed in: canonical-devices-system-image
Milestone: u8c-1 => u8c-z
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Title:
Second unity8 user session hangs
I don't know of any other method other than to make logind allow this
case as you've suggested. We cannot make Mir sessions runs on different
VTs as that would make USC not work anymore.
There may be an issue running X11 sessions through USC as they wont have
type=mir but will share the same VT..
** No longer affects: unity8 (Ubuntu)
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Title:
Second unity8 user session hangs with a black screen
Status in
Robert, can you comment on this? Got a recommendation?
** Package changed: mir (Ubuntu) => systemd (Ubuntu)
** Changed in: systemd (Ubuntu)
Assignee: (unassigned) => Robert Ancell (robert-ancell)
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OK, more research. This looks to be a mismatch between what logind
expects lightdm to do and what we actually do.
Mir sessions started by lightdm all use the same VT number (they all
live on the VT owned by unity-system-compositor.
But logind does not allow two user sessions to be on the same
Some research -- this is because XDG_RUNTIME_DIR is empty for the second
user... Not sure why yet.
You can see the message "QStandardPaths: XDG_RUNTIME_DIR not set,
defaulting to '/tmp/runtime-testuser'" in the log above.
The default for the mir socket that unity8 creates is
** Changed in: unity8 (Ubuntu)
Assignee: (unassigned) => Michael Terry (mterry)
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Title:
Second unity8 user session
Ah... If you use unity8-greeter, you don't see this bug. I think this
is due to each session trying to create a USC for itself and they are
conflicting. I believe we were trying to stop doing that, instead
always using a global USC, but that must not have been prioritized yet.
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Aha! My testing was accidentally done on my xenial+overlay laptop (hard
to tell environments apart sometimes). I can confirm on zesty.
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** Changed in: canonical-devices-system-image
Status: Confirmed => Triaged
** Changed in: unity8 (Ubuntu)
Status: Confirmed => Triaged
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Maybe wait for bug 1644237 to be fixed. That might do the trick.
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Title:
Second unity8 user session hangs with a black
Confirmed.
The problem is unity8 crashes/exits for the second user, right after:
[2017-03-16:09:39:09.588] QStandardPaths: XDG_RUNTIME_DIR not set, defaulting
to '/tmp/runtime-testuser'
[2017-03-16:09:39:09.588] qtmir.screens: ScreensModel::ScreensModel
[2017-03-16:09:39:09.589]
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: unity8 (Ubuntu)
Status: New => Confirmed
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: mir (Ubuntu)
Status: New => Confirmed
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** Tags added: black-screen
** Also affects: mir
Importance: Undecided
Status: New
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Title:
Second unity8 user
I have a samsung also with Intel graphics.
When I get a console login I see a number of upstart jobs running, the top one
at around 16% cpu. Unity8-dash and dbus-daemon are also running as the second
user.
Unity8 is running as the first user only.
I see crashes for url-dispatcher and
I was able to log into two different users with unity8 simultaneously.
So that's positive. Maybe this isn't an everybody thing. It might be a
graphics driver issue? Like Mir can't handle it in some cases? Adding
Mir task to see if that's a crazy thought.
/me is running Dell XPS 13 (intel
** Tags added: unity8-desktop
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Title:
Second unity8 user session hangs with a black screen
Status in Canonical
setting on u8c-1 if possible
** Changed in: canonical-devices-system-image
Importance: Undecided => High
** Changed in: canonical-devices-system-image
Status: New => Confirmed
** Changed in: canonical-devices-system-image
Milestone: None => u8c-1
** Changed in:
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