I recently started using the E-Port Plus Advanced Port Replicator with my Latitude E7450, but the headphones are not working. Sound comes from the laptop itself, even when the headphones are plugged into the dock or laptop. The headphones work with other devices, and the laptop works with the headphones when it is not docked.
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Please update the BIOS, chipset and audio drivers from the Dell Support site.
Can you check if there is sound from external speakers when connected to the system when docked.
Please click my DELL-username and send me a Private Message with the Dell Service Tag number and your email address.
I have tried to do the updates, but the computer freezes each time I try to install the BIOS driver. It happens at different points in the process, and I'm not sure what is causing it.