I reported a bug similar to this a while ago, and after a firmware upgrade (see below) it was fixed. Recently the stuck keys and the syslog spam about keycode e03e have come back.
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 66CN55WW 02/28/2013
Linux 3.13.0-35-generic #62-Ubuntu SMP Fri Aug 15 01:58:42 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
As above, it stops when the screen is flipped.
I reported a bug similar to this a while ago, and after a firmware upgrade (see below) it was fixed. Recently the stuck keys and the syslog spam about keycode e03e have come back.
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
66CN55WW
02/28/2013
Linux 3.13.0-35-generic #62-Ubuntu SMP Fri Aug 15 01:58:42 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
As above, it stops when the screen is flipped.