I also get this behaviour with my Logitech K520 keyboard and unifying receiver, on Ubuntu 16.04 and on 15.10 before that.
I'm currently running 4.4.0-22-generic #40-Ubuntu SMP Thu May 12 22:03:46 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux The same bug has been reported on the RedHat bug tracker: https://bugzilla.redhat.com/show_bug.cgi?id=1278818 According to that, the hid-logitech-hidpp driver might be the culprit. I'm interested to hear that Viktor has not yet seen the problem with the 4.6 kernel. Viktor, please keep us posted when you've run it for a bit longer! ** Bug watch added: Red Hat Bugzilla #1278818 https://bugzilla.redhat.com/show_bug.cgi?id=1278818 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1579190 Title: Key 5 automatically pressed on some Logitech wireless keyboards To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1579190/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
