Just find out that the appearance desktop effects are affecting menu panels behavior. Flickering on menu hover is caused by Scale In effect. I disabled it and menu switching works smoothly. I think kwin effects need additional configuration option like the compiz has. Which window types this effect is affecting to.
-- screen flickering with enabled "Scale In" desktop effect https://bugs.launchpad.net/bugs/360743 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
