Although the bug affects not only plasmashell I post it here for lack of better SUMMARY On X11, Plasmashell, menues and QT tooltips don't composite with depth = 30 STEPS TO REPRODUCE 1. Set 30 bpp per channel in Xorg.conf 2. Restart X OBSERVED RESULT Plasmashell, QT menues and QT tooltips have not shadows, rounded corners and transparency. Strangely, however, qtquick menus seem to have them in Systemsettings. All the rest seems ok. SOFTWARE/OS VERSIONS Operating System: Manjaro Linux KDE Plasma Version: 6.2.5 KDE Frameworks Version: 6.10.0 Qt Version: 6.8.1 Kernel Version: 6.13.0-1-MANJARO (64-bit) Graphics Platform: X11 Processors: 8 × 11th Gen Intel® Core™ i5-1135G7 @ 2.40GHz Memory: 15.4 GiB of RAM Graphics Processor: Mesa Intel® Iris® Xe Graphics Manufacturer: Dell Inc. Product Name: Inspiron 5502 ADDITIONAL INFORMATION Settings vulkan for qtquick doesn't solve the problem.
On X11 it's the X server responsible for this I believe, but moving to KWin so the experts there can handle it.
(In reply to Nate Graham from comment #1) > On X11 it's the X server responsible for this I believe, but moving to KWin > so the experts there can handle it. mmm... not sure, everything else is rendered correctly, with its shadows.
Yeah, this is almost certainly a client side bug. I don't know X11 stuff well enough to judge if it's in the graphics driver or in Qt, but if it works with other apps, it's most likely in Qt. Note though that in general X11 with 30bpp is a basically unused and pretty much unsupported configuration. If you want to have apps use higher bit depths, you'll really want to switch to the Wayland session, where this works out of the box without such bugs.
(In reply to Zamundaaa from comment #3) > Yeah, this is almost certainly a client side bug. I don't know X11 stuff > well enough to judge if it's in the graphics driver or in Qt, but if it > works with other apps, it's most likely in Qt. > > Note though that in general X11 with 30bpp is a basically unused and pretty > much unsupported configuration. If you want to have apps use higher bit > depths, you'll really want to switch to the Wayland session, where this > works out of the box without such bugs. I don't like this continuous sponsorship of the move to Wayland. If a user continues to use X11, you should understand that he has his reasons, which are certainly much more important than 30-bit colour.