Taskbar opacity issue after Plasma 6 upgrade (openSUSE)

Help
1

Hi everyone,

I recently upgraded my system and GPU, and I’m having trouble getting proper taskbar transparency working in KDE Plasma.

System details:

  • OS: openSUSE 16.0

  • Desktop Environment: KDE Plasma 6 (Wayland)

  • Graphics: NVIDIA GeForce GTX 1650

The issue:

  • The panel/taskbar remains solid opaque when using default themes (e.g. Breeze) with standard transparency settings.

  • If I manually adjust the panel’s opacity/transparency controls, it makes the entire panel transparent including the icons and text, rather than keeping the icons crisp at 100% opacity over a transparent background.

  • Desktop effects like Blur are enabled in System Settings.

  • I have cleared out old custom themes from ~/.local/share/plasma/desktoptheme/ to rule out legacy Plasma 5 conflicts.

Has anyone experienced this on openSUSE with Plasma 6 under Wayland, or is there a specific compositor/theme setting or missing dependency I should check to get proper panel background transparency?

Thanks in advance for any insights!

Dag R

2

Which version exactly?

3

plasmashell 6.4.2

4

Solved.

The panel transparency itself was working, but it only became clearly transparent after I disabled both Blur and Background Contrast.

My setup is Plasma 6.4.2 on Wayland with the NVIDIA G06 driver.

At first, the panel appeared to become opaque when a window extended behind the panel area, but after restarting the session this no longer happens. The panel now remains transparent while the icons stay fully opaque.

So the working combination for me was:

  • Panel opacity set to Translucent

  • Blur disabled

  • Background Contrast disabled

  • Restart the Plasma session