I am experiencing the same but in 14.04 LTS My specific experience with this bug on a tri-head two video card system (both nvidia running open source driver) is as follows:
When konsole is on primary video card display the problem does not present itself. When konsole is on secondary video card display the problem is absolute and the screen does not refresh until the mouse moves on the screen or a key is pressed. When the konsole spans Primary->Secondary monitors, the portion of the window on the primary display updates immediately whereas the portion of the window on the secondary display only updates as described above (on mouse event etc). I hope this helps someone smarter than I figure out the issue! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/408646 Title: underlines remain in konsole from previous screen content To manage notifications about this bug go to: https://bugs.launchpad.net/kde-baseapps/+bug/408646/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs