No Audio Output Device is installed, HDMI Audio Out Works

No sound.
Little speaker with the red 'x' appeared yesterday
I have gone through the whole update drivers circus to no avail, my laptop can't detect that it has speakers built in so it doesn't bother finding a driver for them.

This is where I am at:
- Intel Display Audio is the only driver installed for sound
- This means that sound works when the laptop is plugged into an HDMI
- When HDMI is not plugged in, the computer cannot find the built in speakers.
- I have Linux on this system and audio does not work there as well

I would call this a broken chipset, but the fact that the computer still processes audio with the HDMI cable attached is confusing me. Also, the 'audio board' for this laptop has 2 usb ports attached to it, and those both work fine.

Any help would be appreciated :)

Hi welcome to the forum

first thing i would check is the bios to make sure it is enabled.

I've checked the BIOS, nothing there for audio options, I checked for an update to the BIOS on Dell's website and there is one(A01) but it is apparently 32 bit only and won't install on my setup since I'm running 64 bit

Thanks for the informative post,

I'll check the Dell Setup again and try to upgrade it again. (Why would Dell only offer an upgrade incompatible with 64 bit OS?)

I've tried reseating both cables a few times already, what puzzles me is that there are two working USB ports on the board as well, would that be strange that only part of the board(audio) is broken and the other(USB) isn't?

Thanks again for your time, it is much appreciated!

I have A00 on this laptop (system info screen capture below)
Downloading the A01 update and running the exe gives the error seen in the other screen capture.
Looks like if you go to the folder listed in the error there is a WIN_... version of that exe that might work.
I'll try that and get back.

I was able to install the updates(A01) BIOS, but no new options regarding audio :/

I guess I'll have to call it a hardware failure since it affects both Windows and Linux.

Thanks all for the useful information!

I have already tried that twice, just going to assume its the board.

Thanks