[Touch-packages] [Bug 1521403] Re: Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent (./src/platforms/mirserver/screen.cpp:406)

[Daniel van Vugt]

Fixed in:
xorg-server (2:1.19.3-1ubuntu1) zesty; urgency=medium


** Changed in: xorg-server (Ubuntu)
   Status: Fix Committed => Fix Released

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Title:
  Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent
  (./src/platforms/mirserver/screen.cpp:406)

Status in Canonical System Image:
  Fix Released
Status in qtmir package in Ubuntu:
  Fix Released
Status in unity8 package in Ubuntu:
  Invalid
Status in xorg-server package in Ubuntu:
  Fix Released

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity8.  This problem was most recently seen with version
  8.11+15.04.20151130.1-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/6cee045a96ab5c9a03847aeb290f4860eea1034d
  contains more details.

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[Touch-packages] [Bug 1521403] Re: Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent (./src/platforms/mirserver/screen.cpp:406)

[Michał Sawicz]

** Changed in: canonical-devices-system-image
   Status: Fix Committed => Fix Released

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Title:
  Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent
  (./src/platforms/mirserver/screen.cpp:406)

Status in Canonical System Image:
  Fix Released
Status in qtmir package in Ubuntu:
  Fix Released
Status in unity8 package in Ubuntu:
  Invalid
Status in xorg-server package in Ubuntu:
  Fix Committed

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity8.  This problem was most recently seen with version
  8.11+15.04.20151130.1-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/6cee045a96ab5c9a03847aeb290f4860eea1034d
  contains more details.

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[Touch-packages] [Bug 1521403] Re: Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent (./src/platforms/mirserver/screen.cpp:406)

[Pat McGowan]

** Changed in: canonical-devices-system-image
   Status: In Progress => Fix Committed

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Title:
  Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent
  (./src/platforms/mirserver/screen.cpp:406)

Status in Canonical System Image:
  Fix Committed
Status in qtmir package in Ubuntu:
  Fix Released
Status in unity8 package in Ubuntu:
  Invalid
Status in xorg-server package in Ubuntu:
  Fix Committed

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity8.  This problem was most recently seen with version
  8.11+15.04.20151130.1-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/6cee045a96ab5c9a03847aeb290f4860eea1034d
  contains more details.

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[Touch-packages] [Bug 1521403] Re: Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent (./src/platforms/mirserver/screen.cpp:406)

[kevin gunn]

** Changed in: canonical-devices-system-image
Milestone: None => u8c-1

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Title:
  Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent
  (./src/platforms/mirserver/screen.cpp:406)

Status in Canonical System Image:
  In Progress
Status in qtmir package in Ubuntu:
  Fix Released
Status in unity8 package in Ubuntu:
  Invalid
Status in xorg-server package in Ubuntu:
  Fix Committed

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity8.  This problem was most recently seen with version
  8.11+15.04.20151130.1-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/6cee045a96ab5c9a03847aeb290f4860eea1034d
  contains more details.

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[Touch-packages] [Bug 1521403] Re: Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent (./src/platforms/mirserver/screen.cpp:406)

[Launchpad Bug Tracker]

This bug was fixed in the package qtmir -
0.5.1+17.04.20170215.1-0ubuntu1

---
qtmir (0.5.1+17.04.20170215.1-0ubuntu1) zesty; urgency=medium

  [ Michał Sawicz ]
  * We're at provides 26 already (LP: #1662608)

  [ Alan Griffiths ]
  * Identify the code that depends directly on mirserver-dev headers

  [ Albert Astals Cid ]
  * Check we provide the same unity-application-impl that we require

  [ Daniel d'Andrada ]
  * Resolve mir cursor names using mir symbols instead of plain strings
(LP: #1662827)

  [ Gerry Boland ]
  * ScreenModel: Only expose windows on displays that are turned on (LP:
#1521403, #1638611, #1656250)
  * Restore lost LTTng tracepoints, and delete unused ones (LP:
#1658084)

  [ Nick Dedekind ]
  * Added Extended Display Information Data (EDID) parsing.

  [ Alan Griffiths, Nick Dedekind ]
  * Iteration 0 of miral::PersistDisplayConfig. This does nothing yet
(and breaks nothing in the process). This MP creates a place (miral-
prototypes) to build prototype miral features and sketches out what
will need to be implemented for PersistDisplayConfig. (LP: #1644189)

 -- Michał Sawicz   Wed, 15 Feb 2017
13:23:17 +

** Changed in: qtmir (Ubuntu)
   Status: In Progress => Fix Released

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Title:
  Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent
  (./src/platforms/mirserver/screen.cpp:406)

Status in Canonical System Image:
  In Progress
Status in qtmir package in Ubuntu:
  Fix Released
Status in unity8 package in Ubuntu:
  Invalid
Status in xorg-server package in Ubuntu:
  Fix Committed

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity8.  This problem was most recently seen with version
  8.11+15.04.20151130.1-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/6cee045a96ab5c9a03847aeb290f4860eea1034d
  contains more details.

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[Touch-packages] [Bug 1521403] Re: Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent (./src/platforms/mirserver/screen.cpp:406)

[Daniel van Vugt]

And furthermore:

https://git.launchpad.net/~xmir-team/xorg-
server/+git/xmir/commit/?id=8a53ab14880167946e805d3c16bab167fbb03683

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Title:
  Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent
  (./src/platforms/mirserver/screen.cpp:406)

Status in Canonical System Image:
  In Progress
Status in qtmir package in Ubuntu:
  In Progress
Status in unity8 package in Ubuntu:
  Invalid
Status in xorg-server package in Ubuntu:
  Fix Committed

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity8.  This problem was most recently seen with version
  8.11+15.04.20151130.1-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/6cee045a96ab5c9a03847aeb290f4860eea1034d
  contains more details.

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[Touch-packages] [Bug 1521403] Re: Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent (./src/platforms/mirserver/screen.cpp:406)

[Daniel van Vugt]

Fortunately that's already the case. An app in Unity8 is always asking
Unity8 to ask USC to turn the screen off. Unity8 already has the option
of rejecting it, in theory.

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Title:
  Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent
  (./src/platforms/mirserver/screen.cpp:406)

Status in Canonical System Image:
  In Progress
Status in qtmir package in Ubuntu:
  In Progress
Status in unity8 package in Ubuntu:
  Invalid
Status in xorg-server package in Ubuntu:
  Fix Committed

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity8.  This problem was most recently seen with version
  8.11+15.04.20151130.1-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/6cee045a96ab5c9a03847aeb290f4860eea1034d
  contains more details.

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[Touch-packages] [Bug 1521403] Re: Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent (./src/platforms/mirserver/screen.cpp:406)

[Michał Sawicz]

There definitely are usecases for applications requesting display power
changes, but yes they need to be filtered/mangled by the shell, and only
applied when the requesting app, and session, are in focus.

Whether that should be a privileged operation, I'm not sure. As long as
the user can easily escape it (Alt+Tab, power button etc.), I don't
think we need to protect this.

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Title:
  Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent
  (./src/platforms/mirserver/screen.cpp:406)

Status in Canonical System Image:
  In Progress
Status in qtmir package in Ubuntu:
  In Progress
Status in unity8 package in Ubuntu:
  Invalid
Status in xorg-server package in Ubuntu:
  Fix Committed

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity8.  This problem was most recently seen with version
  8.11+15.04.20151130.1-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/6cee045a96ab5c9a03847aeb290f4860eea1034d
  contains more details.

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[Touch-packages] [Bug 1521403] Re: Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent (./src/platforms/mirserver/screen.cpp:406)

[Daniel van Vugt]

I have now prevented Xmir from turning the physical display off under
Unity8:

https://git.launchpad.net/~xmir-team/xorg-
server/+git/xmir/commit/?id=9a508dc77fd68f8ba321e82ed0d7c36df1ddf745

However it appears Xmir will still blank the Xmir window to black.
Sounds like we need to launch Xmir with additional options to prevent
that...

-p #   screen-saver pattern duration (minutes)
-s #   screen-saver timeout (minutes)
v  video blanking for screen-saver
-v screen-saver without video blanking


** Also affects: xorg-server (Ubuntu)
   Importance: Undecided
   Status: New

** Tags added: xmir

** Changed in: xorg-server (Ubuntu)
   Importance: Undecided => Medium

** Changed in: xorg-server (Ubuntu)
 Assignee: (unassigned) => Daniel van Vugt (vanvugt)

** Changed in: xorg-server (Ubuntu)
   Status: New => Fix Committed

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Title:
  Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent
  (./src/platforms/mirserver/screen.cpp:406)

Status in Canonical System Image:
  In Progress
Status in qtmir package in Ubuntu:
  In Progress
Status in unity8 package in Ubuntu:
  Invalid
Status in xorg-server package in Ubuntu:
  Fix Committed

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity8.  This problem was most recently seen with version
  8.11+15.04.20151130.1-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/6cee045a96ab5c9a03847aeb290f4860eea1034d
  contains more details.

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[Touch-packages] [Bug 1521403] Re: Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent (./src/platforms/mirserver/screen.cpp:406)

[Gerry Boland]

Ok, rather marginal use-cases then :)

At least Mir allows this kind of request can be filtered by Unity8 in
future, to prevent this kind of thing being abused. Perhaps need a
system so that privileged clients can do this if they need.

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Title:
  Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent
  (./src/platforms/mirserver/screen.cpp:406)

Status in Canonical System Image:
  In Progress
Status in qtmir package in Ubuntu:
  In Progress
Status in unity8 package in Ubuntu:
  Invalid

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity8.  This problem was most recently seen with version
  8.11+15.04.20151130.1-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/6cee045a96ab5c9a03847aeb290f4860eea1034d
  contains more details.

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[Touch-packages] [Bug 1521403] Re: Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent (./src/platforms/mirserver/screen.cpp:406)

[Daniel van Vugt]

Oh, the use case for Unity7 is that Unity7 is buggy and randomly forgets
to turn the screen off :)

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Title:
  Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent
  (./src/platforms/mirserver/screen.cpp:406)

Status in Canonical System Image:
  In Progress
Status in qtmir package in Ubuntu:
  In Progress
Status in unity8 package in Ubuntu:
  Invalid

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity8.  This problem was most recently seen with version
  8.11+15.04.20151130.1-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/6cee045a96ab5c9a03847aeb290f4860eea1034d
  contains more details.

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[Touch-packages] [Bug 1521403] Re: Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent (./src/platforms/mirserver/screen.cpp:406)

[Daniel van Vugt]

I mean that historically it's always been possible, and sometimes
useful, to be able to turn the screen off immediately on the command
line (xset dpms ...).

It's not a major requirement, but a rare one. I can't even remember what
my use case was for it in the past. In the case of 'mirout', I only
added power commands for testing. I don't think anyone will complain in
a hurry if no command line exists for changing the power mode.

As for Xmir turning the display off, that's just legacy code from before
I adopted the project. I completely agree Xmir should not be changing
power modes for Unity8.

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Title:
  Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent
  (./src/platforms/mirserver/screen.cpp:406)

Status in Canonical System Image:
  In Progress
Status in qtmir package in Ubuntu:
  In Progress
Status in unity8 package in Ubuntu:
  Invalid

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity8.  This problem was most recently seen with version
  8.11+15.04.20151130.1-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/6cee045a96ab5c9a03847aeb290f4860eea1034d
  contains more details.

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[Touch-packages] [Bug 1521403] Re: Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent (./src/platforms/mirserver/screen.cpp:406)

[Michał Sawicz]

** Changed in: canonical-devices-system-image
   Status: New => In Progress

** Changed in: canonical-devices-system-image
   Importance: Undecided => High

** Changed in: canonical-devices-system-image
 Assignee: (unassigned) => Michał Sawicz (saviq)

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Title:
  Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent
  (./src/platforms/mirserver/screen.cpp:406)

Status in Canonical System Image:
  In Progress
Status in qtmir package in Ubuntu:
  In Progress
Status in unity8 package in Ubuntu:
  Invalid

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity8.  This problem was most recently seen with version
  8.11+15.04.20151130.1-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/6cee045a96ab5c9a03847aeb290f4860eea1034d
  contains more details.

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[Touch-packages] [Bug 1521403] Re: Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent (./src/platforms/mirserver/screen.cpp:406)

[Gerry Boland]

> It is actually valid for apps to be able to change the power mode 
> of the display. mirout in Mir 0.26.0 has such an option. But I agree
> it's bad for apps to do it unexpectedly

@vanvugt can you share examples of times when this is valid? I'm of the
opinion display on/off/suspend should be solely the shell's decision.

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Title:
  Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent
  (./src/platforms/mirserver/screen.cpp:406)

Status in Canonical System Image:
  New
Status in qtmir package in Ubuntu:
  In Progress
Status in unity8 package in Ubuntu:
  Invalid

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity8.  This problem was most recently seen with version
  8.11+15.04.20151130.1-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/6cee045a96ab5c9a03847aeb290f4860eea1034d
  contains more details.

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[Touch-packages] [Bug 1521403] Re: Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent (./src/platforms/mirserver/screen.cpp:406)

[Daniel van Vugt]

** Summary changed:

- Unity8 crashes with SIGSEGV in Screen::makeCurrent 
(./src/platforms/mirserver/screen.cpp:406)
+ Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent 
(./src/platforms/mirserver/screen.cpp:406)

** Tags added: unity8-desktop

** Also affects: canonical-devices-system-image
   Importance: Undecided
   Status: New

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Title:
  Unity8 crashes on suspend/standby with SIGSEGV in Screen::makeCurrent
  (./src/platforms/mirserver/screen.cpp:406)

Status in Canonical System Image:
  New
Status in qtmir package in Ubuntu:
  In Progress
Status in unity8 package in Ubuntu:
  Invalid

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity8.  This problem was most recently seen with version
  8.11+15.04.20151130.1-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/6cee045a96ab5c9a03847aeb290f4860eea1034d
  contains more details.

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