New information, this bug had been resolve for some time.
And still only on Nexus4
An additional caveat is that this is only occuring when the device is on
cellular roaming (Pat with same phone/sw saw this happen in Barcelona, went
away when he returned home, and occurs again on biz travel to
Yes, the flush branch is a partial solution. Depending on how the other
projects evolve.
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Title:
Session screen seen upon quick power key strike
@duflu - then why not link even more branches? to me the whole point of
attaching a branch is to indicate resolution. I do not see any point in
attaching a branch that's not destined to provide a solution for the bug.
If the attached branch _is_ a solution for the bug, then i wholeheartedly
** Summary changed:
- [Nexus 4] session screen seen upon quick power key strike
+ Session screen seen upon quick power key strike
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Title:
Please keep related branches linked. They're handy for future reference.
Even if 'related' doesn't mean a fix.
** Branch linked: lp:~vanvugt/mir/flush
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@alf - since you're in the midst of u-s-c refactor, this is probably a
good one for you to track
** Changed in: unity-system-compositor
Assignee: Alberto Aguirre (albaguirre) = Alexandros Frantzis (afrantzis)
** Branch unlinked: lp:~vanvugt/mir/flush
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OK, alberto says this doesn't happen on krillin he's right I just gave it
several attempts.
I'm suggesting we consider this a mako only issue now, and remove rtm14.
** Tags removed: ota-1 rtm14
** Summary changed:
- session screen seen upon quick power key strike
+ [Nexus 4] session screen
** Tags removed: touch-2014-10-02
** Tags added: ota-1
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Title:
session screen seen upon quick power key strike
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** Tags removed: touch-2014-10-2
** Tags added: touch-2014-10-02
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Title:
session screen seen upon quick power key strike
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** Changed in: mir
Milestone: 0.8.0 = None
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session screen seen upon quick power key strike
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** No longer affects: unity8
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Title:
session screen seen upon quick power key strike
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** Changed in: mir (Ubuntu)
Status: Triaged = Opinion
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session screen seen upon quick power key strike
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** Changed in: unity-system-compositor
Assignee: (unassigned) = Alberto Aguirre (albaguirre)
** Changed in: unity8 (Ubuntu)
Assignee: (unassigned) = Michael Terry (mterry)
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** Changed in: mir/0.6
Milestone: 0.6.2 = None
** Changed in: mir/0.6
Status: Opinion = Won't Fix
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Title:
session screen seen upon
** Changed in: mir
Milestone: 0.9.0 = 0.8.0
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session screen seen upon quick power key strike
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** Changed in: mir
Milestone: 0.8.0 = 0.9.0
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Title:
session screen seen upon quick power key strike
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** Changed in: unity8 (Ubuntu)
Importance: Undecided = High
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session screen seen upon quick power key strike
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** Tags added: touch-2014-10-2
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Title:
session screen seen upon quick power key strike
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** Changed in: mir
Milestone: 0.7.0 = 0.8.0
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session screen seen upon quick power key strike
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** Changed in: unity8
Importance: Undecided = High
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Title:
session screen seen upon quick power key strike
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** Changed in: mir (Ubuntu)
Importance: Undecided = Medium
** Changed in: mir (Ubuntu)
Status: Confirmed = Triaged
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Title:
session
please update with a reason if you disagree change is back.
But with the information above, i'm marking this as opinion for mir...but
leaving open for unity8.
** Changed in: mir
Status: In Progress = Opinion
** Changed in: mir/0.6
Status: Triaged = Opinion
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I'm curious why it takes u8 so long to respond to the power key press.
It should be almost instantly receiving the dbus message and drawing a
frame with the greeter shown. DBus isn't /that/ slow.
Do we show greeter as soon as power-off is hit? I hope we don't draw
Greeter on power-on only.
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The greeter is shown when it receives the DisplayPowerStateChange with
an off status signal which is only emitted after the compositor thread,
display and back-light have been shut off.
My plan was to expand the DisplayPowerStateChange signal with a will
power off soon status and have some sort
I have verified the proposed Mir fix does not help right now. The
threshold of 500ms it uses is too low to account for the Unity8/dbus
delay. And increasing the Mir delay to seconds to account for that delay
I think would not feel as nice as the screen coming on immediately like
it does now.
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** Changed in: mir/0.6
Milestone: 0.6.1 = 0.6.2
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session screen seen upon quick power key strike
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Alright, I'm preparing to propose a fix/workaround in Mir. Although
sadly that won't do us any good if Unity8 still takes a second or so to
respond to wakeup. My Mir solution depends on all clients (and nested
servers like Unity8) responding to wakeup and providing a new frame (the
greeter) in
** Changed in: mir
Assignee: Alexandros Frantzis (afrantzis) = Daniel van Vugt (vanvugt)
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Title:
session screen seen upon quick power key
** Branch linked: lp:~vanvugt/mir/flush
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Title:
session screen seen upon quick power key strike
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** Also affects: mir/0.6
Importance: Undecided
Status: New
** Changed in: mir/0.6
Milestone: None = 0.6.1
** Changed in: mir/0.6
Status: New = Triaged
** Changed in: mir/0.6
Importance: Undecided = Medium
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Let me rephrase that...
The problem seems to be that MultiThreadedCompositor (unity-system-compositor)
unconditionally recomposes on restart:
compose_on_start = true;
This means the user is guaranteed to see an old frame on restart because
we've allowed no time for clients (included
I'm not sure if anyone mentioned this yet, but it appears Mir's default
behaviour is to immediately draw a frame on compositor (re)start (for
non-nested servers only, like USC).
It's the last parameter here:
return std::make_sharedmc::MultiThreadedCompositor(
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: qa-daily-testing
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session screen seen upon quick power key strike
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** Tags added: elopio
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Title:
session screen seen upon quick power key strike
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Still happens on Utopic 161, but it doesn't seem like a blocker. As far
as I can tell, the screen must be off for less than a second in order to
trigger this bug, which is very unlikely to happen unless the person who
turned it off is the same as the person who turned it back on. So, not
really
** Changed in: mir
Milestone: 0.6.0 = 0.7.0
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Title:
session screen seen upon quick power key strike
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** Also affects: mir (Ubuntu)
Importance: Undecided
Status: New
** Also affects: unity8 (Ubuntu)
Importance: Undecided
Status: New
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** Changed in: mir/0.5
Status: Confirmed = Won't Fix
** Changed in: mir/0.5
Milestone: 0.5.1 = None
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Title:
session screen seen upon
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