Scaling & "Transparency" Errors on KDE Plasma

Help
, ,
1

System Info:

Operating System: Debian GNU/Linux 13
KDE Plasma Version: 6.3.6
KDE Frameworks Version: 6.13.0
Qt Version: 6.8.2
Kernel Version: 6.19.10+deb13-amd64 (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 7500X3D 6-Core Processor
Memory: 32 GiB of RAM (30.7 GiB usable)
Graphics Processor: AMD Radeon RX 6650 XT
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7E81
System Version: 1.0

I’ve had a common issue recently, where the Application Menu and Kwin Operation Menu having completely broken scaling, or sometimes outright not appearing at all; (cf. Screenshots)

There doesn’t seem to be a way to perfectly reproduce it 100% of the time, just play around with the menus and eventually it’ll happen.

If anyone has any idea on how to fix them, help would be greatly appreciated!

ScalingError2
ScalingError2453×456 49.8 KB

ScalingError
ScalingError514×742 78.6 KB

2

Update: I managed to have the “invisible” menu bug happen again; this one is a bit weirder, it’ll happen a few times after boot, but when everything is “loaded in”, it’ll stop happening outright.

image
image842×450 47.8 KB

3

I use the debian13 the same as you do, it seems that this bug will be fixed in plasma 6.6, you can check this post

4

I can confirm that, with newer KDE Plasma versions the transparency effects seem to behave correctly.

 > kinfo
Operating System: openSUSE Tumbleweed 20260415
KDE Plasma Version: 6.6.4
KDE Frameworks Version: 6.25.0
Qt Version: 6.11.0
Kernel Version: 6.19.12-1-default (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 8600G w/ Radeon 760M Graphics
Memory: 34 GB of RAM (32.8 GB usable)
Graphics Processor: AMD Radeon 760M Graphics
 >
5

Alright, time to upgrade I guess, thanks for the help!