I am also having this issue. It started happening for me when I was using ArchLinux during July of 2016; I was thinking about going back to Ubuntu, so I re-installed Lubuntu over Arch. Low and Behold, the issue persists.
My issue is worse in that usually the key(s) that will trigger this repeated key is the arrow keys, which I frequently use to scroll up and down through man pages, web pages, etc. However, when this occurs, my keyboard no longer responds to input, and my mouse will start "falling" to whichever direction the arrow key corresponds (down arrow repeat will cause my mouse cursor to continuously move to the bottom of the screen). I noticed that my dmesg was being spammed with this error too, and when I (temporarily) set the keycodes to 255, the issue persists, but the error message will go away from dmesg. If my issue seems right for another new bug thread, please let me know. I'll provide what everyone else has been providing -- welcome to provide any information I can in order to address this bug. $ cat /etc/issue Ubuntu 16.04.1 LTS \n \l $ uname -a Linux masq-Lu 4.4.0-43-generic #63-Ubuntu SMP Wed Oct 12 13:48:03 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux # dmidecode -s bios-version && dmidecode -s bios-release-date 66CN55WW 02/28/2013 Or if anyone knows generally what might be messed up, I'm pretty experienced using Linux, and I know some C... so I could theoretically fix it myself (I would post any successes I had here). Cheers -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1227996 Title: [Lenovo IdeaPad Yoga 13] ubuntu doesn't know about Yoga screen rotation keycodes: atkbd serio0: Use 'setkeycodes e03e <keycode>' to make it known. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1227996/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
