I've plug in my bass guitar through a cord and a converter in the line in port on my PC. Then checked 'listen to this device' (head phone) which is connected properly as it worked perfectly when I play any sound in ma PC. But when I play my guitar, I can only hear it from one side of the head phone. How to fix it!?

Is that compatible to give output from both sides (R + L) ? Can you check same thing on other system ?