Kamin Punpipat, thank you for reporting this and helping make Ubuntu better. As per http://www.dell.com/support/home/us/en/04/product-support/product/inspiron-14-3421/drivers an update to your BIOS is available (A12). 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 provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report.
For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette .
Once the BIOS is updated, then please mark this report Status Confirmed.
Thank you for your understanding.
Kamin Punpipat, thank you for reporting this and helping make Ubuntu better. As per http:// www.dell. com/support/ home/us/ en/04/product- support/ product/ inspiron- 14-3421/ drivers an update to your BIOS is available (A12). 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 provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report.
For more on BIOS updates and linux, please see https:/ /help.ubuntu. com/community/ ReportingBugs# Bug_reporting_ etiquette .
Once the BIOS is updated, then please mark this report Status Confirmed.
Thank you for your understanding.