Created attachment 153675 [details] bugscreenshot.png SUMMARY After a shutdown and restart of my computer: All icons in Plasma have been substituted by black squares. Also, the angles of the window decoration are substituted by black squares. Moreover, QtQuick buttons are substituted by black squares. Even in the SDDM screen, this happens. See screenshot. STEPS TO REPRODUCE It is unknown what leads to these results and what could be steps to reproduce it. OBSERVED RESULT All icons in Plasma have been substituted by black squares. Also, the angles of the window decoration are substituted by black squares. Moreover, QtQuick buttons are substituted by black squares. Even in the SDDM screen, this happens. See screenshot. EXPECTED RESULT The desktop renders as expected. Operating System: Kubuntu 22.04 KDE Plasma Version: 5.24.6 KDE Frameworks Version: 5.92.0 Qt Version: 5.15.3 Kernel Version: 5.15.0-52-generic (64-bit) Graphics Platform: X11 Processors: 8 × Intel® Core™ i7-7700HQ CPU @ 2.80GHz Memory: 15.5 GiB of RAM Graphics Processor: Mesa Intel® HD Graphics 630 ADDITIONAL INFORMATION It seems like QWidget is not affected: Icons and buttons of QWidget appear correctly. (I'm not sure if this is the correct component to report this bug.)
The problem persists after a reboot.
> Even in the SDDM screen Then it's unlikely to be a plasma bug, sorry. We're failing to show a simple texture. Try upgrading or downgrading mesa.
Okay. I've made a clear re-installation of the distribution, and now the problem is gone.