Bug 359368

Summary:	Rectangular snapshot is (often) not shown in preview
Product:	[Applications] Spectacle	Reporter:	invuladres
Component:	General	Assignee:	Boudhayan Gupta <me>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	erickjx, nplatis, ramsoft
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description invuladres 2016-02-13 21:43:30 UTC

After making a rectangular snapshot, the preview window does not show. Mainly when the size is limited. The snapshot is taken however, when I export to Gwenview it shows. 



Reproducible: Sometimes

Steps to Reproduce:
1. take a rectangular snapshot
2.
3.

Actual Results:  
no snapshot shows in the snapshot window

Expected Results:  
snapshot shows up in the snapshot window

Comment 1 ralph 2016-04-03 17:33:35 UTC

I can confirm this problem on openSUSE Leap 42.1, Spectacle 15.12.3, Qt 5.6.0, KDE Frameworks 5.20.0.
I have noticed a strange thing: Spectacle will always show the snapshot if the captured (rectangular) region contains some text; for example, a text in KWrite or KDevelop.

Comment 2 Boudhayan Gupta 2016-04-03 19:22:56 UTC

nvidia GPU driver?

Comment 3 ralph 2016-04-03 19:33:47 UTC

 Boudhayan Gupta, yes, nVidia GPU driver, but Spectacle works perfectly if I select "Full screen", "Current screen", "Active window" or "Window under the mouse cursor".

Comment 4 Boudhayan Gupta 2016-04-03 19:43:12 UTC

This is a known issue with nVidia drivers.

Comment 5 ralph 2016-04-03 19:47:38 UTC

 Boudhayan Gupta, I forgot to write that KSnapShot does not have this problem.

Comment 6 Boudhayan Gupta 2016-04-03 21:32:32 UTC

This bug is triggered by trying to draw a drop shadow behind the image preview on very small images. KSnapshot didn't attempt to draw a drop shadow.

Comment 7 ralph 2016-04-13 02:52:33 UTC

Today I have received an automatic update to KDE Applications 16.03.90.
Now, in Spectacle 16.03.90, rectangular snapshot does not work anymore, even if I select a big area.

Comment 8 Erick Jimenez 2016-04-21 21:14:33 UTC

Hi, i have same problem,  not preview and not paste any image.

The problem is in the new version, previous not have the problem, with or without nvidia proprietary drivers.

Note: window and full screen snaptshot works well.

OpenSuse 42.1
QT 5.6.0
Spectacle 16.04.0

Comment 9 Nikos Platis 2016-04-24 07:22:43 UTC

I am not sure if this is the correct place to report this, since this bug talks about the preview not working, but just like comment #8, for me the rectangular area screenshot does not work at all, neither preview nor saved image. Only the cursor gets captured correctly in the images. Other types of screenshot work correctly.

Arch Linux - NVidia GPU
Spectacle 16.04.0
KDE Frameworks 5.21.0
Qt 5.6.0