Bug 356464

Summary:	Colorpicker widget picks color on wrong screen with a top-down multi-screen setup.
Product:	[Unmaintained] kdeplasma-addons	Reporter:	Stany MARCEL <stanypub>
Component:	Color Picker	Assignee:	Kai Uwe Broulik <kde>
Status:	RESOLVED FIXED
Severity:	normal	CC:	bshah, plasma-bugs-null, stanypub
Priority:	NOR
Version First Reported In:	5.5.0
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:	http://commits.kde.org/kdeplasma-addons/7c714d1756b6760350c2fdc09b661688d7f0473a	Version Fixed/Implemented In:	5.5.1
Sentry Crash Report:

Description Stany MARCEL 2015-12-10 13:07:28 UTC

On a setup with two full hd screen, with main screen at 1920x1080+0+1080 and second screen at 1920x1080+0+0.

Colorpicker picks widget always pick colors on top screen, inverting primary screen does not solve the issue.





Reproducible: Always

Steps to Reproduce:
1. Connect two display
2. Configure display to be top down
3. Pick color on bottom display

Actual Results:  
Color picked from top display at same relative offset.

Expected Results:  
Color picket from bottom display.

The two displays are connected on Intel integrated GPU:
Card: Intel Haswell-ULT Integrated Graphics Controller bus-ID: 00:02.0
Display Server: X.Org 1.18.0 driver: intel Resolution: 1920x1080@60.01hz, 1920x1080@60.00hz
GLX Renderer: Mesa DRI Intel Haswell Mobile GLX Version: 3.0 Mesa 11.0.6 Direct Rendering: Yes

Comment 1 Kai Uwe Broulik 2015-12-13 16:23:19 UTC

Git commit 7c714d1756b6760350c2fdc09b661688d7f0473a by Kai Uwe Broulik.
Committed on 13/12/2015 at 16:21.
Pushed by broulik into branch 'Plasma/5.5'.

[Color Picker] Fix grabbing color in multi screen environment

I thought I was smart by looking for the proper screen and then calculating the
mouse offset relative to it and so on when in fact the QPixmap created by
QScreen::grabWindow(0) contains all screens, not just the one I grab from.
This is probably once again X weirdness.
FIXED-IN: 5.5.1

M  +8    -9    applets/colorpicker/plugin/grabwidget.cpp

http://commits.kde.org/kdeplasma-addons/7c714d1756b6760350c2fdc09b661688d7f0473a