I have a S752 and a PR120 port replicator with B22-W screen. When I plug the audio cable from monitor into the headphone port on the laptop the speaker amplification from the B22-W in-built speakers is fine.
If however if plug into the headphone port of the port replicator the sound is extremely quiet (so much so it is hardly audible). Other colleagues have the issue (so it is not problematic HW), but they just use the port on the laptop.
I prefer it should work, hence this question. I currently wonder if the laptop has some sort of AMP and the port replicator does not.
I tried updating to latest Realtek drivers, but no improvement. Realtek audio manager of course recognises the two ports and also see the cable being plugged in.
Volumes etc. are all on full also of course.