I'm using the GLX backend and I'm sometimes getting black text in the titlebar (see attached screenshot). Goes away after minimizing/maximizing usually. Often accompanied with black topleft/bottomright corners (I do have "show window coordinates on move" enabled). Reproducible: Always
Created attachment 93972 [details] Screenshot
Aurorae/OpenGL/Glyph cache - it's a driver issue for 99.9% and Qt bug for 0.1% odds. It doesn't really relate to the KWin compositor (the QtQuick GL scene in the aurorae decoration is the major problem), but the multitude of GL contexts will likely raise chances you run into this. Can you please attach the output of "glxinfo"?
I remember that we had similar issues with Plasma and that it was somehow related to the text element. I need to ask a Plasma dev what the change was, but everyone who could know it and has NVIDIA (so hit the problem) seems to be on vacation...
Wild guess: "renderType: Text.QtRendering" ? Aurorae (though also some/most plasma QML) has Text.NativeRendering @Jerome /usr/share/kwin/aurorae/aurorae.qml Just try to change the attribute and restart KWin - then see what happens.
Created attachment 94015 [details] glxinfo Sorry I forgot to CC myself. Output of glxinfo attached.
This issue report is quite old. Can you please confirm, that it still persists with KDE 5.23?
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!