Created attachment 170519 [details] Video showing the effect. On a Gentoo ~AMD64 X11 system under Qt 6.7.1 and KDE frameworks 6.3.0 the background in Konsole flickers between being transparent and non-transparent as the window redraws. (This can include new text being drawn or just mousing over a widget on the tab bar.) This appears to be a regression as the functionality worked fine under KDE Frameworks 5 (I noticed upon upgrading). Am using an Intel GPU with a 6.9 kernel and the latest Mesa release. Reproduce: under an X11 session open Konsole. Go Settings -> Edit Current Profile -> Appearance -> Edit [Yuck!] -> Set "Background colour transparency" to a reasonable number. Then Apply and interact with the session. Screencast taken with Spectale attached.
Minor update: I am actually running Wayland rather than X11.
I have a similar issue since 6.0 came out, although mine is the entire background. Right now my unfocused Konsole background is not transparent (and it should be). If I move my mouse over, the entire background flickers for a moment transparent and back to solid. If I click into Konsole/focus it, it goes transparent. Moving the mouse, key strokes, and even command output (like tailing a log) can make the background switch between transparent and not. Operating System: Arch Linux KDE Plasma Version: 6.1.3 KDE Frameworks Version: 6.4.0 Qt Version: 6.7.2 Kernel Version: 6.6.40-2-lts (64-bit) Graphics Platform: Wayland Processors: 24 × AMD Ryzen 9 5900X 12-Core Processor Memory: 31.3 GiB of RAM Graphics Processor: AMD Radeon RX 6900 XT
I have a similar issue that happens when I let my machine idle and the monitor shuts off (Samsung 57" Neo G9). I get my system to turn the monitor back on, unlock my system, and then I switch to a desktop that has Konsole already running. The background flickers while typing. Only solution is to restart that instance of Konsole. It seems if the desktop I unlock to has Konsole running, that one is fine. Operating System: Gentoo KDE Plasma Version: 6.3.1 KDE Frameworks Version: 6.11.0 Qt Version: 6.8.2 Kernel Version: 6.13.4-gentoo-limelight (64-bit) Graphics Platform: Wayland Processors: 16 × 11th Gen Intel® Core™ i9-11900K @ 3.50GHz Memory: 62.7 GiB of RAM Graphics Processor: NVIDIA GeForce RTX 4090 (discrete)