Daniel, the KDE menu bar colour problem I experienced and noted in bug #1780664 also went away when I upgraded to the new xorg-server.
I had to reboot and upgrade all my packages twice in order to get the latest. You might try checking to ensure that you have all the latest packages. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1780846 Title: After update 2018-07-08 menus and buttons are behaving badly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1780846/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp