Bug 415465

Summary:	Opacity slider does not make window transparent when compositing is off
Product:	[Applications] kruler	Reporter:	Alexander Potashev <aspotashev>
Component:	general	Assignee:	Mathias Soeken <soeken>
Status:	REPORTED ---
Severity:	normal
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Alexander Potashev 2019-12-22 22:34:59 UTC

SUMMARY
Opacity slider does not make window transparent.

STEPS TO REPRODUCE
1. Decrease opacity under context menu -> "Opacity"
2. 
3. 

OBSERVED RESULT
KRuler becomes darker and finally solid black for 0% "opacity".

EXPECTED RESULT
KRuler should become transparent.

SOFTWARE/OS VERSIONS
Operating System: Fedora 31
KDE Plasma Version: 5.16.5
KDE Frameworks Version: 5.64.0
Qt Version: 5.12.5
Kernel Version: 5.3.15-300.fc31.x86_64
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-6700HQ CPU @ 2.60GHz
Memory: 15,4 ГиБ

ADDITIONAL INFORMATION

Comment 1 Christoph Feck 2019-12-27 17:43:36 UTC

Cannot reproduce with today's Tumbleweed on an intel iGPU. Is composting enabled?

Comment 2 Alexander Potashev 2019-12-28 07:34:51 UTC

Compositing is off - that caused the problem.

Comment 3 Alexander Potashev 2020-03-29 18:16:23 UTC

If opacity setting cannot work without compositing, then I would suggest that the Opacity menu should be disabled if compositing is disabled.