Hello Dell Support,

 

I recently upgraded the BIOS from v1.4 to v1.5. The 3.5mm jack already had an input in place connected to external speakers. When the update finished flashing the BIOS and rebooted, the Ubuntu operating system did not detect an already inserted audio input in the 3.5mm jack. I had to remove the mini-stereo input and plug it back in for the external speakers to work again.

This is a minor issue but is very annoying every time I have to reboot.

 

Thanks!