We have a patch for QScreenSaver. The way it will work is that apps can
use this from QML:
import QtSystemInfo 5.0
ScreenSaver { screenSaverEnabled: false }
or its pendant from C++. Unity-System-Compositor will watch the
application. As soon as the application is closed, the request will be
dropped and the screensaver will be enabled again, even if the app
didn't explicitly release the resource before quitting.
We need apparmor to allow apps to call the methods:
* keepDisplayOn
* removeDisplayOnRequest
on interface:
com.canonical.Unity.Screen
and path:
/com/canonical/Unity/Screen
on the *system* bus.
** Changed in: apparmor-easyprof-ubuntu (Ubuntu)
Importance: Undecided => High
** Changed in: apparmor-easyprof-ubuntu (Ubuntu)
Assignee: (unassigned) => Jamie Strandboge (jdstrand)
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Touch seeded packages, which is subscribed to apparmor-easyprof-ubuntu
in Ubuntu.
https://bugs.launchpad.net/bugs/1462489
Title:
Allow apps to keep the screen on
Status in the base for Ubuntu mobile products:
Confirmed
Status in apparmor-easyprof-ubuntu package in Ubuntu:
Confirmed
Status in qtubuntu package in Ubuntu:
Confirmed
Status in ubuntu-system-settings package in Ubuntu:
Confirmed
Status in ubuntu-ui-toolkit package in Ubuntu:
Confirmed
Status in unity-system-compositor package in Ubuntu:
Confirmed
Status in unity8 package in Ubuntu:
Confirmed
Bug description:
Support an interface in QML and HTML to allow an app to keep the
screen on while the app is active. This has come up in several
scenarios, such as an ebook reader, a clock in night mode.
First step is to hook up QtSystemInfo screenSaverEnabled
One solution to inhibit the screen blanking:
Add a new dbus rule to the default template
Provide a mediator (unity8) to control this, so it can restore the screen
blanking when the app is not active or has been closed
Prompt the user for confirmation the first time the app accesses it
use the trust store to avoid prompts each time
add to the System settings Other app access panel an entry for Screen or
Display so the setting could be revoked
To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1462489/+subscriptions
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