[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Launchpad Bug Tracker]

** Branch linked: lp:~ci-train-bot/mir/mir-ubuntu-xenial-2736

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  Sometimes devices don't suspend - display turns back on immediately

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Pat McGowan]

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

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Alberto Aguirre]

** Changed in: mir
   Status: Fix Committed => Fix Released

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[mir-ci-bot]

Fix committed into lp:mir at revision None, scheduled for release in
mir, milestone 0.22.0

** Changed in: mir
   Status: In Progress => Fix Committed

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Daniel van Vugt]

** Changed in: mir/0.21
   Status: Fix Committed => Fix Released

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Jean-Baptiste Lallement]

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

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Launchpad Bug Tracker]

This bug was fixed in the package mir - 0.21.0+16.04.20160330-0ubuntu1

---
mir (0.21.0+16.04.20160330-0ubuntu1) xenial; urgency=medium

  [ Alberto Aguirre ]
  * New upstream release 0.21.0 (https://launchpad.net/mir/+milestone/0.21.0)
- ABI summary:
  . mirclient ABI unchanged at 9
  . mirserver ABI unchanged at 38
  . mircommon ABI unchanged at 5
  . mirplatform ABI unchanged at 11
  . mirprotobuf ABI unchanged at 3
  . mirplatformgraphics ABI unchaged at 8
  . mirclientplatform ABI bumped to 5
  . mirinputplatform ABI unchanged at 5
- Enhancements:
  . New display enumeration API
  . Added Android diagnostic tests to assist during porting to
new devices
  . Added mir_demo_client_camera: a Video4Linux2 client
- Bugs fixed:
  . Sometimes devices don't suspend - display turns back on
immediately (LP: #1549701)
  . Mir crashed with exception 'failed to add sync point to command
buffer' (LP: #1554635)
  . Mouse cursor is unusably slow in Unity 8 with a 1000Hz mouse
(LP: #1539009)
  . Packaged mir_unit_tests binary is not suitable for general use
(LP: #1547015)
  . [regression] Mir stops receiving input after a pause/resume
cycle (LP: #1548989)
  . NBS (--nbuffers=0) causes software clients to crash with
std::exception::what: Failed to mmap buffer 13, "Permission denied")
(LP: #1550432)
  . Fullscreen clients freeze when using NBS with multiple monitors
(LP: #1551536)
  . [ FAILED ] DisplayConfigurationTest.output_position_is_independent_of_
orientation (LP: #1552065)
  . The server-side use of MIR_SOCKET is confusing (LP: #1290345)
  . [regression] FTBFS with -DMIR_LINK_TIME_OPTIMIZATION=on
-Duse_debflags=on (LP: #1350343)
  . Mir On X (mesa-x11) keeps receiving mouse movement events even
when not focused (LP: #1528110)
  . x11 platform: mouse cursor moves strange (LP: #1546324)
  . Cross compiling to wily/vivid doesn't work (LP: #1549152)
  . Rendering stutters when a new client establishes a connection
(LP: #1549359)
  . 'mir_demo_server --test-client' crashes (SIGSEGV) when client
dies (LP: #1555620)
  . [testfail] CI failure: TestClientInput.client_input_config_request_
receives_all_attached_devices (LP: #1555708)
  . [regression] Mir FTBFS when MIR_ENABLE_TESTS=no (LP: #1556080)
  . Mir-on-X11 doesn't exit (until it gets an event) (LP: #1556210)
  . InputPlatformProbe.x11_platform_found_and_used_when_display_connection_
works breaks with old input drivers present (LP: #1543049)
  . [regression] MIR_CLIENT_PERF_REPORT is missing window/surface
names (LP: #1546933)
  . Installed binaries fail to run with mir_demo_server --test-client 
(LP: #1556160)
  . mir_demo_server --test-client [mir_demo_client_scroll|
mir_demo_client_flicker] fails (LP: #1556205)
  . The contents of debian/mir-demos.examples are out of date and useless
(LP: #1557446)

  [ CI Train Bot ]
  * No-change rebuild.

 -- Alberto Aguirre   Wed, 30 Mar 2016
00:23:20 +

** Changed in: mir (Ubuntu)
   Status: Confirmed => Fix Released

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Pat McGowan]

** Tags added: display-control

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Daniel van Vugt]

** Changed in: mir/0.21
 Assignee: (unassigned) => Andreas Pokorny (andreas-pokorny)

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Alberto Aguirre]

** Changed in: mir
   Importance: Undecided => High

** Changed in: mir/0.21
   Importance: Undecided => High

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  Sometimes devices don't suspend - display turns back on immediately

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Alberto Aguirre]

** Also affects: mir
   Importance: Undecided
   Status: New

** Changed in: mir
 Assignee: (unassigned) => Andreas Pokorny (andreas-pokorny)

** Changed in: mir
   Status: New => In Progress

** Also affects: mir/0.21
   Importance: Undecided
   Status: New

** Changed in: mir/0.21
   Status: New => Fix Committed

** Changed in: mir/0.21
Milestone: None => 0.21.0

** Changed in: mir
Milestone: None => 0.22.0

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Andreas Pokorny]

** Branch linked: lp:~andreas-pokorny/mir/fix-1549701

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  Sometimes devices don't suspend - display turns back on immediately

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Launchpad Bug Tracker]

** Branch linked: lp:~andreas-pokorny/mir/fix-1549701-0.21.0

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  Sometimes devices don't suspend - display turns back on immediately

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Pat McGowan]

** Changed in: canonical-devices-system-image
Milestone: ww08-2016 => 11

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  Sometimes devices don't suspend - display turns back on immediately

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: unity8 (Ubuntu)
   Status: New => Confirmed

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  Sometimes devices don't suspend - display turns back on immediately

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: unity-system-compositor (Ubuntu)
   Status: New => Confirmed

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  Sometimes devices don't suspend - display turns back on immediately

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Andreas Pokorny]

** Description changed:

  current build number: 267
  device name: krillin
  channel: ubuntu-touch/rc-proposed/bq-aquaris.en
  
  it happens also on arale.
  
  sometimes the screen lock timeout is not honoured and the devices don't
  suspend when the lock timeout expires (display doesn' t turn off)
  
  $ sudo powerd-cli list
  [sudo] password for phablet:
  System State Requests:
    Name: com.canonical.Unity.Screen, Owner: :1.14, State: 1
  
  Steps to reproduce on arale:
  
  1. Turn on the screen
  2. Touch the circular touch button at the lower part of the device
  3. Press/release the power button to turn off screen
  4. Release the circular touch button
  
  Expected results: The screen turns off and further on/off cycles work properly
  Actual results: The screen stays on and attempts to turn it off fail
+ 
+ The touchscreen is handling the circular button and emits a key down event. 
When turning the screen of the touch screen device is turned off too. Mir is 
not aware of the touchscreen being off. So meanwhile the repeat handling kicks 
in and emits key events. This makes USC turn the screen back on again.
+ The touchscreen driver does not notice that the circular button is still 
held. So still no release event is sent.
+ 
+ We could fix this by:
+ - fixing the touchscreen driver to release any touch contacts or buttons 
pressed, when the device is turned off (something the bluetooth stack seems to 
do on some devices)
+ - sidestep the problem by making usc only react to press events as a wake 
trigger and make repeat and release events only reset the inactivity timer
+ - give mir the knowledge that the disabled output also disables the 
touchscreen (a connection we need to be aware of to get the mapping of touch 
screen coordinates onto scene coordinates right), hence remove the device and 
thus turn of any repeat key handling attached to that device.

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Andreas Pokorny]

We need a different solution here since we never stop reading from the
the touchscreen when the screen is off. Instead the hardware is turned
off so it never sends a release..

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  Sometimes devices don't suspend - display turns back on immediately

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Andreas Pokorny]

The only difference to the mentioned lp:#1550050 is that the device is
not "removed" during suspend, which I suspect was fixed in lp:mir and
will be included in 0.21.0 - this together with the fix for #1550050
should solve that problem.

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Alexandros Frantzis]

This seems to be another instance of bug 1550050, which involves the Mir
input subsystem sending key repeat events event after an input device
disappears. In this case the repeated key is the circular touch key at
the bottom of the MX4 (which is sent as left-meta). A fix for this is
included in the upcoming Mir 0.20.2 release.

I have added steps to reproduce this on MX4 in the description.


** Description changed:

  current build number: 267
  device name: krillin
  channel: ubuntu-touch/rc-proposed/bq-aquaris.en
  
  it happens also on arale.
  
  sometimes the screen lock timeout is not honoured and the devices don't
  suspend when the lock timeout expires (display doesn' t turn off)
  
  $ sudo powerd-cli list
- [sudo] password for phablet: 
+ [sudo] password for phablet:
  System State Requests:
-   Name: com.canonical.Unity.Screen, Owner: :1.14, State: 1
+   Name: com.canonical.Unity.Screen, Owner: :1.14, State: 1
+ 
+ Steps to reproduce on arale:
+ 
+ 1. Turn on the screen
+ 2. Touch the circular touch button at the lower part of the device
+ 3. Press/release the power button to turn off screen
+ 4. Release the circular touch button
+ 
+ Expected results: The screen turns off and further on/off cycles work properly
+ Actual results: The screen stays on and attempts to turn it off fail

** Also affects: mir (Ubuntu)
   Importance: Undecided
   Status: New

** Changed in: mir (Ubuntu)
 Assignee: (unassigned) => Andreas Pokorny (andreas-pokorny)

** Changed in: mir (Ubuntu)
   Importance: Undecided => High

** Changed in: mir (Ubuntu)
   Status: New => Confirmed

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Alexandros Frantzis]

** Attachment added: "Input devices list"
   
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1549701/+attachment/4592385/+files/input-devices.txt

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Alexandros Frantzis]

** Attachment added: "Input event log"
   
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1549701/+attachment/4592384/+files/input-events.txt

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Alexandros Frantzis]

With the help of Jean-Baptiste I was able to get some more information
from a device exhibiting the problem.

The logs indicate that the phone is continuously receiving repeat key
events (scancode=125=left-meta) from the touchscreen input device. These
events are keeping the device awake.

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Pat McGowan]

I entered bug #1552371 which could be related especially given the
report that a key event had occurred at the time.

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Jean-Baptiste Lallement]

** Changed in: canonical-devices-system-image
Milestone: None => ww08-2016

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Michał Sawicz]

** Changed in: canonical-devices-system-image
 Assignee: Michał Sawicz (saviq) => Stephen M. Webb (bregma)

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[Bug 1549701] Re: Sometimes devices don't suspend - display turns back on immediately

[Jean-Baptiste Lallement]

list of running processes.

No app is running (at least nothing visible in the spread)

** Attachment added: "ps_auxf.out"
   
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1549701/+attachment/4586469/+files/ps_auxf.out

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