https://bugs.kde.org/show_bug.cgi?id=411058
--- Comment #5 from Carl Wilson <kaiw...@gmail.com> --- Also, there are lots of messages in dmesg like: psmouse serio2: Touchpad at isa0060/serio2/input0 lost sync at byte 6 psmouse serio2: Touchpad at isa0060/serio2/input0 - driver resynced. Not all of such messages will lead to this bug, but this bug seems to happen after some of these messages sometimes. I have identified a dirty fix for this issue: Close the lid to suspend the laptop. After resuming, this problem would be gone for the moment. However it might still re-appear some time later. -- You are receiving this mail because: You are watching all bug changes.