[GTALUG] Acer Aspire 3 A315-21 laptop has mono sound only?

[Ken Heard]

Thanks everyone for the suggestions.  The laptop definitely is stereo. 
Earlier this evening (Thursday) I disconnected the fibre optic cable 
between the monitor and the amplifier.  I then plugged in a pair of 
cheap earphones into the monitor and played some music. Only one ear 
received any sound.

It looks as though the HDMI cable is the culprit.  The next step is to 
connect another HDMI cable between the laptop and the monitor. That I 
will do tomorrow morning (Friday).

Regards, Ken Heard
   I