Bug 468339

Summary: kruler opacity not working (ruler gets darker, but not transparent)
Product: [Applications] kruler Reporter: Paul Stansell <paulstansell>
Component: generalAssignee: Mathias Soeken <soeken>
Status: REPORTED ---    
Severity: normal    
Priority: NOR    
Version First Reported In: 22.12.3   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: 3 krulers with maximum, middle, and minimum opacity settings

Description Paul Stansell 2023-04-09 21:45:21 UTC
Created attachment 157981 [details]
3 krulers with maximum, middle, and minimum opacity settings

SUMMARY

Changing the position of the opacity slider on kruler changes the brightness of kruler, but it is not transparent.  In the case of opacity set at it's minimum I just see a black rectangle where kruler is, I don't see what is beneath the ruler.

STEPS TO REPRODUCE
1. Start kruler
2. Right mouse-click on the ruler to see the menu.
3. Choose "Opacity" from the menu
4. Adjust the slider to the far left.
5. Observe kruler change into a black rectangle with full opacity when it should have full transparency. 

OBSERVED RESULT

Opacity does not change, but kruler turns black.

EXPECTED RESULT

kruler become progressively more transparent as the opacity slider is move to the left.


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kubuntu 22.04 LTS (with XFCE,LXQt, MATE and Gnome also installed)
KDE Plasma Version: 5.24.7
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3

ADDITIONAL INFORMATION
Dell Precision 5530
Kernel Version: 5.19.17-051917-generic (64-bit)
Graphics Platform: X11
Processors: 12 × Intel® Core™ i7-8850H CPU @ 2.60GHz
Memory: 31.0 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 630
Comment 1 Paul Stansell 2023-04-20 21:35:09 UTC
I initially reported this problem against Kubuntu 22.04 LTS, but I've since upgraded to Kubuntu 22.10 and then from Plasma 5.25 to 5.27, but the problem persists.

NEW SOFTWARE/OS VERSIONS
Operating System: Kubuntu 22.10
KDE Plasma Version: 5.27.4
KDE Frameworks Version: 5.104.0
Qt Version: 5.15.6
Kernel Version: 5.19.17-051917-generic (64-bit)
Graphics Platform: X11