graesslin added a comment.
Ok, I figured out why the context is not current any more. We seem to get a mode change request from KScreen, which results in the DRMBackend updating a screen, the EGLBackend recreates the EGLSurface but didn't pass it to the parent class which tried to make a context current on the no longer existing surface. Thus making the context current failed. Uploading new patch. REPOSITORY R108 KWin BRANCH drm-property-safety REVISION DETAIL https://phabricator.kde.org/D8752 To: graesslin, #kwin, #plasma, fvogt, subdiff Cc: plasma-devel, kwin, bwowk, ZrenBot, progwolff, lesliezhai, ali-mohamed, hardening, jensreuterberg, abetts, sebas, apol, mart
