Just in case someone else running Kubuntu becomes affected...
Since Kubuntu 13.10 I was being bugged by this: https://bugs.launchpad.net/ubuntu/+s...r/+bug/1191898
After upgrade to 14.04 I finally devised a workaround: https://bugs.launchpad.net/ubuntu/+s...898/comments/5
The bug has also been observed since 2012 on Ubuntu, Arch Linux and other distros. It's well alive and kicking on Kubuntu 14.04 x64 (running on my G750JX laptop)
Since Kubuntu 13.10 I was being bugged by this: https://bugs.launchpad.net/ubuntu/+s...r/+bug/1191898
After upgrade to 14.04 I finally devised a workaround: https://bugs.launchpad.net/ubuntu/+s...898/comments/5
The bug has also been observed since 2012 on Ubuntu, Arch Linux and other distros. It's well alive and kicking on Kubuntu 14.04 x64 (running on my G750JX laptop)