Bug 385553

Summary:	Cannot unify outputs
Product:	[Plasma] KScreen	Reporter:	Sergio <sergio.callegari>
Component:	kcm	Assignee:	Sebastian Kügler <sebas>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	NOR
Version First Reported In:	5.10.5
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Sergio 2017-10-10 16:45:35 UTC

Unify outputs does not work

Pressing the buttons in the system setting kscreen window causes the two screens to be shown as overlapped, yet when one presses apply, the screens remain configured to be non-overlapping, as testified by querying xrandr on the command line.

This is not an issue of the hardware or the graphics drivers. Using xrandr to force one display to be the `--same-as` the other effectively unifies the outputs.

Comment 1 Sebastian Kügler 2017-10-10 23:02:55 UTC

Could you please test this with 5.11? We have fixed a large number of bugs that could cause this behavior since Plasma 5.5.

Comment 2 Sergio 2017-10-11 10:22:38 UTC

Sorry, I have just realized that I indicated the wrong version. I am currently on 5.10.5. Will test with 5.11 as soon as it is shipped in the dedicated PPA for the up to date plasma for kubuntu.

I cannot be 100% sure, but I would say that what I am observing is a relatively recent regression, though.

Comment 3 Sebastian Kügler 2017-10-30 12:32:37 UTC

https://phabricator.kde.org/D8391 and 
https://phabricator.kde.org/D8390 should fix this.

Comment 4 Christoph Feck 2017-11-15 21:31:48 UTC

Both diffs from comment #3 are committed, please reopen or add a comment if these do not fix the issue.