Problem is that the Lockscreen height is defined like this:
Lockscreen {
y: panel.panelHeight
width: parent.width
height: parent.height - panel.panelHeight
}
and Lockscreen contains:
Image {
// Limit how much memory we'll reserve for this image
sourceSize.height: height
sourceSize.width: width
fillMode: Image.PreserveAspectCrop
}
panel.panelHeight is a property which is animated during unlock, if the
application is fullscreen. Animating sourceSize is a bad thing, as it
causes the CPU to rescaling the image each time.
** Changed in: unity8 (Ubuntu)
Status: Triaged => In Progress
** Changed in: unity8 (Ubuntu)
Assignee: (unassigned) => Gerry Boland (gerboland)
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https://bugs.launchpad.net/bugs/1396244
Title:
Unlocking the phone over fullscreen app is very slow
Status in unity8 package in Ubuntu:
In Progress
Bug description:
Steps to repro:
* have a pass{code,word}-protected phone
* start dialer
* lock the phone
* unlock the phone
Expected:
* nothing much, stuff unlocks fluently and all
Current:
* fade out of the lockscreen takes like 2-3s, dialer and panel seem to fight
over fullscreen vs. maximized surface size
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: unity8 8.01+15.04.20141117-0ubuntu1
Uname: Linux 3.4.67 armv7l
ApportVersion: 2.14.7-0ubuntu10
Architecture: armhf
Date: Tue Nov 25 17:46:27 2014
InstallationDate: Installed on 2014-11-25 (0 days ago)
InstallationMedia: Ubuntu Vivid Vervet (development branch) - armhf
(20141125-020205)
SourcePackage: unity8
UpgradeStatus: No upgrade log present (probably fresh install)
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