Bug 447501

Summary: Broken transparency in hamburger menus and some applets (on X11)
Product: [Plasma] Breeze Reporter: Niels <niels1995>
Component: QStyleAssignee: Plasma Bugs List <plasma-bugs>
Status: CONFIRMED ---    
Severity: normal CC: kde, kfm-devel, nate, niels1995, noahadvs, rsodrewong, s.zb
Priority: NOR    
Version: 5.23.90   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: Screenshot of problem
Non-transparent grey menu inside Audio Volume applet
Broken transparency in Gwenview's hamburger menu

Description Niels 2021-12-25 09:50:44 UTC
Created attachment 144853 [details]
Screenshot of problem

SUMMARY
If I click on the hamburger menu in Dolphin, the main menu looks grey instead of transparent with blur. 
The submenu is not affected by this. Also in other applications like Elisa, the hamburger menu does not have this problem. A restart does not fix this issue. I am running on Intel graphics

STEPS TO REPRODUCE
1. Configure Breeze transparency with blur enabled
2. Open hamburger menu in dolphin

OBSERVED RESULT
Hamburger menu not showing transparency or blur but a grey background

EXPECTED RESULT
Showing transparency and blur as all other menus

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
Comment 1 hexchain 2022-01-20 04:08:08 UTC
I have this problem in dolphin and other places, e.g. menus inside the "Audio Volume" applet.

It is probably not a dolphin problem per se.

Operating System: Arch Linux
KDE Plasma Version: 5.23.90
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.2
Kernel Version: 5.16.1-zen1-1-zen (64-bit)
Graphics Platform: X11
Processors: 16 × AMD Ryzen 7 4800H with Radeon Graphics
Memory: 29.8 GiB of RAM
Graphics Processor: AMD RENOIR
Comment 2 hexchain 2022-01-20 04:08:45 UTC
Created attachment 145656 [details]
Non-transparent grey menu inside Audio Volume applet
Comment 3 Stefan Zurucker 2022-02-21 08:42:32 UTC
Created attachment 146988 [details]
Broken transparency in Gwenview's hamburger menu

(In reply to hexchain from comment #1)
> I have this problem in dolphin and other places, e.g. menus inside the
> "Audio Volume" applet.
> 
> It is probably not a dolphin problem per se.

I can confirm the observed issues: Happens in applications with a hamburger menu like "Dolphin" and "Gwenview" and at least in the "Audio Volume" applet.
Comment 4 Stefan Zurucker 2022-02-21 08:58:56 UTC
The issue appears to be restricted to X11, I can't reproduce it in a Wayland session.

Operating System: KDE neon 5.24
KDE Plasma Version: 5.24.1
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.3
Graphics Platform: X11
Processors: AMD Ryzen 7 4800H with Radeon Graphics
Graphics Processor: AMD RENOIR