*** This bug is a duplicate of bug 1309915 ***
https://bugs.launchpad.net/bugs/1309915
** This bug has been marked a duplicate of bug 1309915
foreground app should keep wakelock open until actual suspend happens
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** Changed in: canonical-devices-system-image
Milestone: ww51-2014 => ww03-2015
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https://bugs.launchpad.net/bugs/1398436
Title:
Preview frozen after unlocking
To manage notificatio
** No longer affects: camera-app
** No longer affects: camera-app (Ubuntu)
** No longer affects: camera-app (Ubuntu RTM)
** Changed in: canonical-devices-system-image
Status: Confirmed => In Progress
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Same cause triggers media player bug
https://bugs.launchpad.net/ubuntu/+source/mediaplayer-app/+bug/1398564
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https://bugs.launchpad.net/bugs/1398436
Title:
Preview frozen after unlockin
It looks like an older bug would represent a possible solution to the
deep suspend:
https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1309915
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https://bugs.launchpad.net/bugs/1398436
After discussion, seems the issue is that powerd suspends the device as
soon as the power button is pressed and the screen lock is released. The
suspend happens before the app manager can tell the apps they are
inactive, so the camera-app is not able to properly release the camera.
When resume happ
Interestingly, the following video player bug is reminiscent of this
one: https://bugs.launchpad.net/ubuntu/+source/mediaplayer-
app/+bug/1398564
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Additional information:
- Tagger is also affected by that bug
- Previous note about rendering not happening was incorrect, rendering is
happening as expected while the app is 'frozen'
- A sample minimal app for which the bug happens is available at:
https://code.launchpad.net/~fboucault/+junk/cam
Steps to reproduce
0) make sure that USB is unplugged
1) launch camera
2) lock phone and wait 5 seconds
3) resume phone and wait 5 seconds
4) unlock phone
Expected result:
Depending on how fast the phone was unlocked the camera is either fully
functional with the camera viewfinder showing the ca
I got freeze same way Pat said. The key seems to be to let it suspend
for > 1 minute then on the second resume it freezes
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Title:
Preview frozen
fwiw I have a passcode enabled
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Title:
Preview frozen after unlocking
To manage notifications about this bug go to:
https://bugs.launchpad.net/c
** Attachment added:
"application-click-com.ubuntu.camera_camera_3.0.0.latest.log"
https://bugs.launchpad.net/ubuntu/+source/camera-app/+bug/1398436/+attachment/4277819/+files/application-click-com.ubuntu.camera_camera_3.0.0.latest.log
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I reproduced fairly quickly as follows:
Phone is unplugged from USB
Lock the phone and resume several times, all fine.
Press power and this time allow at least 1 min for it to suspend
Resume phone, first time is ok
Lock - pause - resume second time phone screen locks up
Try again and screen locks
** Attachment added: "unity8.log"
https://bugs.launchpad.net/ubuntu/+source/camera-app/+bug/1398436/+attachment/4277818/+files/unity8.log
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Titl
Here is syslog from Pat's krillin when he got 2) error from above:
http://paste.ubuntu.com/9373379/
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Title:
Preview frozen after unlocking
To ma
Maybe it's only occurs if you lock/unlock very fast, where the camera is
still in process of shutting down when it's asked to re-initialize? Lets
look into the code to see what would happen in that case to make sure
it's not causing the freeze symptom.
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I would think that's highly unlikely though since a process has 5
seconds from the point that it receives a signal that it's being
suspended until the point that it actually is suspended. 5 seconds is a
long time in computing.
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The only way I can see 2) happening is if the system is overloaded
(possibly due to a memory leak or due to a rogue process using CPU when
it shouldn't) then the camera app will not have enough time to release
the lock on the camera and clear the viewfinder's preview before the
process is suspended
I did some testing. I am seeing two different behaviors:
1) "Normal" behavior: when the phone is locked/unlocked, the viewfinder shows
black for ~1 second and then switches back to live viewfinder mode. This is
expected, as the camera-app has to release the camera backend when it becomes
inactiv
** Also affects: camera-app
Importance: Undecided
Status: New
** Changed in: camera-app
Importance: Undecided => Critical
** Changed in: camera-app
Assignee: (unassigned) => Florian Boucault (fboucault)
** Tags added: ww51
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** Changed in: camera-app (Ubuntu)
Assignee: (unassigned) => Florian Boucault (fboucault)
** Also affects: camera-app (Ubuntu RTM)
Importance: Undecided
Status: New
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