Well, after playing with hidpi setting, it appears that ALL bugs (empty menu, badly positionned tooltips) are only when windows scalling is set to 2!
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1695228 Title: menubar not updated/refreshed correctly when switching buffers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/emacs25/+bug/1695228/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs