Hi, you might find some clue with ctrl+Alt+F12, syslog terminal.
Instead if hitting 'I',
If you have a way to edit files, like /etc/modprobe.d/blacklist-mdv
add pc-speaker to the list. This will make sure there is no conflict with the sound modules being loaded in the wrong order.
# disable PC speaker by default
# pcspkr is the standard driver, while snd-pcsp is the ALSA driver
Hope this helps.