Bug 406905

Summary: Menus on Wayland lose blur when reopened and become transparent, making it hard to read
Product: [Plasma] plasmashell Reporter: Vincent Gerard Tan <look.for.borgy>
Component: generic-waylandAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED DUPLICATE    
Severity: major CC: bugseforuns, tromzy
Priority: NOR    
Version: 5.15.4   
Target Milestone: 1.0   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed In:
Attachments: Konsole at left shows menu being opened at first time, at right menu has been reopened.

Description Vincent Gerard Tan 2019-04-26 00:25:37 UTC
Created attachment 119641 [details]
Konsole at left shows menu being opened at first time, at right menu has been reopened.

SUMMARY
on Wayland, with blur enabled, menus lose their translucency and become transparent. this is exhibited whether on application menus or on right-click (in the system tray for example).
this does not happen on X.
see attachment for an illustration of the problem.

STEPS TO REPRODUCE
1. Make sure Blur is enabled. Widget theme to use is Breeze.
2. Open a menu from a KDE application or right click on the desktop. Observe Blur works as expected.
3. Close the menu.
4. Reopen the same menu.

OBSERVED RESULT
Blur is lost and menu becomes transparent.

EXPECTED RESULT
Menu should look exactly the same as before (e.g. blur is still applied).

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora 30 Beta (also observed in Fedora 29)
(available in About System)
KDE Plasma Version: 5.15.4
KDE Frameworks Version: 5.55.0
Qt Version: 5.12.1

ADDITIONAL INFORMATION
CPU: Intel Core i7-8550U
Graphics: Intel UHD Graphics 620 only
Comment 1 tromzy 2019-04-26 08:28:49 UTC
I already reported it : https://bugs.kde.org/show_bug.cgi?id=398899
Comment 2 Patrick Silva 2019-04-26 11:12:16 UTC

*** This bug has been marked as a duplicate of bug 398899 ***