Bug 363914

Summary:	Canvas stops working after focusing another desktop (ubuntu)
Product:	[Applications] krita	Reporter:	Mateo de Mayo <mateodemayo>
Component:	OpenGL Canvas	Assignee:	Krita Bugs <krita-bugs-null>
Status:	RESOLVED FIXED
Severity:	minor	CC:	Nimthora, psion.01
Priority:	NOR
Version First Reported In:	3.0
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Mateo de Mayo 2016-06-03 20:43:45 UTC

The canvas stops working in the current file, creating another doesn't change anything for the first file, but the canvas in the new file works again.

Reproducible: Always

Steps to Reproduce:
1. Enable Working Areas under Ubuntu Preferences->Appearance->Behaviour
2. Open krita->New File
3. Change to another desktop (Ctrl+s or Ctrl+Alt+Arrow) and return to the krita desktop
4. You are not able to paint on the canvas anymore.

Actual Results:  
The canvas doesn't respond to the brushes.

Expected Results:  
The canvas should work

CPU: AMD FX-6300
GPU: NVIDIA GTX960 (Driver 361.42 from Ubuntu repositories)
OS: Ubuntu 16.04

Comment 1 Psion 2016-06-21 17:21:54 UTC

I have this exact problem on my Ubuntu 14.04 system using an nVidia GTX560ti. Any interaction with other virtual desktops disables all tools on the current canvas. A new canvas can be opened, but that, too becomes dead if the desktop is changed again. I've removed Krita 3 and reverted to Krita 2.9 for now.

Comment 2 Nimthora 2016-07-13 17:13:07 UTC

This bug seems to have been resolved in the Krita 3.1 alpha.