Comment 11 for bug 1194761

Po-Hsu Lin, thank you for the consolidated focus of this report. One thing that is of interest is , as per http://www.dell.com/support/drivers/us/en/19/Product/inspiron-14r-se-7420 an update is available for your BIOS (A19). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything? If it doesn't, could you please both specify what happened, and just provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Thank you for your understanding.