hi there,
I use two external screen with my laptop. an LG I bought in America at home, and a AOC I bought in Scotland at the office.
my sound works fine at home on the LG, however occasionall on the AOC I cannot hear any sound unless I use headphones.
if I attempt to test the sound on my laptop I get the following message "The device is being used by another application. Please close any devices that are playing audio to this device and try again".
I do not have any other devices runnig on my laptop that I know of. I have been on several internet forums and tried several make shift solution none of which have worked perminently.
any help is appreciated!