https://bugs.kde.org/show_bug.cgi?id=426988
Bug ID: 426988
Summary: Client unresponsive when geometry changes if both
signals are connected
Product: kwin
Version: unspecified
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: scripting
Assignee: kwin-bugs-n...@kde.org
Reporter: lingtj...@hotmail.com
Target Milestone: ---
SUMMARY
When you set the same geometry in both the clientStepUserMovedResized and
clientFinishedUserMovedResized signals the client becomes unresponsive until
you can force a new geometry, such as by changing the border property (it feels
like a deadlock, because CPU usage does not go up, it's just no longer takes
input)
STEPS TO REPRODUCE
1. open a konsole application
2. run this small kwin script that illustrates the problem, this example
connects both client geometry change signals to a running konsole application
and forces a certain geometry (100,100, 200, 400)
```
var clients = workspace.clientList();
for (var i = 0; i < clients.length; i++) {
var client = clients[i];
if (client && client.resourceClass.toString() === 'konsole')
{
client.clientStepUserMovedResized.connect(function(c){
c.geometry = {
x: 100,
y: 100,
width: 200,
height:400
};
});
client.clientFinishUserMovedResized.connect(function(c)
{
c.geometry = {
x: 100,
y: 100,
width: 200,
height:400
};
});
}
}
```
3. resize the konsole application by dragging one of the borders
OBSERVED RESULT
client becomes unresponsive to input
EXPECTED RESULT
client should be responsive to input
SOFTWARE/OS VERSIONS
latest archlinux packages (Plasma 5.19.5/Framework 5.74.0 at the time of
writing this report)
ADDITIONAL INFORMATION
If you comment one of the two signals then it works fine and the client doesn't
become unresponsive.
I remember in older versions of KWin, this would result in weird visual
artificats, this is now resolved but now the client becomes unresponsive.
Origin of report: https://github.com/lingtjien/Grid-Tiling-Kwin/issues/83
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