graesslin added a comment.
I would say the overall problem is that this here still uses an XLib event queue. But Qt uses an xcb connection. I would say this needs a porting away from the XLib code and use Qt's XCB connection and event handling. REPOSITORY R119 Plasma Desktop REVISION DETAIL https://phabricator.kde.org/D3829 EMAIL PREFERENCES https://phabricator.kde.org/settings/panel/emailpreferences/ To: xuetianweng, davidedmundson Cc: knambiar, graesslin, plasma-devel, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas