1 Copper

Re: Latitude E6520 Audio Issues

I had the same problem. Looks like there is broken audio driver from IDT. I found out a solution, at least it helped me.

1. Uninstall Audio Device driver and software in Device Manager (check box in uninstall windows)

2. Reboot Windows

3. Windows will install its own good driver.

before -        High Definition Audio Device CODEC

after -            High Definition Audio Device

Hopefully it will help.