Bug 350865

Summary:	Yakuake doesn't handle QT_DEVICE_PIXEL_RATIO well
Product:	[Applications] yakuake	Reporter:	Kai Uwe Broulik <kde>
Component:	general	Assignee:	Eike Hein <hein>
Status:	RESOLVED FIXED
Severity:	normal	CC:	kde
Priority:	NOR
Version First Reported In:	Git (Frameworks 5)
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:	http://commits.kde.org/kwindowsystem/b932fe461a555f09886d577f734e6d6624654f76	Version Fixed/Implemented In:
Sentry Crash Report:

Description Kai Uwe Broulik 2015-08-01 17:49:46 UTC

When running my session with QT_DEVICE_PIXEL_RATIO Yakuake's window will be offset from my top panel and get too wide because all its coordinates are scaled and thus the offset for the panel is doubled and from what is is concerned the screen is double the width.

Reproducible: Always

Steps to Reproduce:
1. Run yakuake with QT_DEVICE_PIXEL_RATIO=2
2.
3.

Actual Results:  
The window will be twice the width of the monitor (if set to 100% width) and there will be a gap between the top panel and the yakuake window

Expected Results:  
It behaves as it would without scaling

Comment 1 David Edmundson 2015-08-06 15:26:55 UTC

Confirmed, I'm fixing it in frameworks

Comment 2 David Edmundson 2015-08-07 21:47:04 UTC

Git commit b932fe461a555f09886d577f734e6d6624654f76 by David Edmundson.
Committed on 07/08/2015 at 21:43.
Pushed by davidedmundson into branch 'master'.

Handle clients having a different device pixel ratio

Qt scales down the size of QScreens by the device pixel ratio; we should
make our windowing APIs match.

X (and KWin) deal with device dependent pixels, so everything needs to
be converted when communitcating geometry.

Abstraction happens in the main kwindowsystem so X and Wayland are both
supported.
Related: bug 350614, bug 347951
REVIEW: 124648

M  +20   -9    src/kwindowsystem.cpp

http://commits.kde.org/kwindowsystem/b932fe461a555f09886d577f734e6d6624654f76