Hi @david_walland ,
Looking at the maintenance and service guide for the laptop, taken from this webpage there is no separate audio board in the laptop, so it must be an audio IC (Realtek?) on the motherboard
Is the audio working otherwise OK in the laptop?
If not, have you checked the status of the sound controller in Device Manager? Right click on the Windows Start button and click on the Device Manager link.
Just verifying that you have checked in Control Panel to see if Bang& Olufsen control panel is there? Type control panel in the taskbar search box, select Control Panel, select Hardware and Sound, and then select the Bang& Olufsen if there.
Was it working OK before the update?
Try rolling back the update and check if it works again
@david_walland
I have no problems when clicking on the links.
Here they are below
manual : http://h10032.www1.hp.com/ctg/Manual/c04...
support page : https://support.hp.com/us-en/product/hp-...
Alternatively search for HP Pavilion 15-ab271sa manual to get to the support page. Use the HP site and not 3rd party.
Here's the audio drivers for the laptop. Click on Choose different OS, then click on Select Operating System and select Windows and then click on select version and click on Win 10 64-bit then click on Change. Click on All drivers > Driver Audio (1) to get to the download link.
Mostly in BIOS if there is an audio option it is to either enable or disable so that would mean a red cross in Device Manager if disabled, not a yellow exclamation mark.
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The machine will beep on HP test but nothing else. I've been through all of the various possibilities . There's error exclamtion marks on the device manager and no possibility of reverting to to previous driver. I waas thinking of putting a new SSD in and running Xubuntu to see if *that* could find and use the hardware. I've had a quick poke at the BIOS but that's pretty complicated and I'm yet to get through all the possibilities. The machine was bought new in 2016 (I think).
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