No HDMI audio on Studio XPS 13 after video driver install (nVidia 8.15.11.8633)

How video driver could mess with HDMI audio?

Because the audio driver for HDMI is part of the graphics driver -- the regular IDT HD audio driver does not create the HDMI audio. We (people on this board) are still trying to figure out the exact mechanism of how HDMI is implemented in the laptops so I cannot give you a specific solution for your model, but perhaps the HDMI driver is not being installed with the new graphics driver. If you go to where the graphics files were unpacked on the hard drive and look though its sub-folders you will probably see something relating to HDMI audio.

C:\dell\drivers\R234725

If there is a sub-folder named C:\dell\drivers\R234725\HDMI then reinstall the new driver and then look in the Device Manager and if you see "Audio device on high definition audio bus" with an exclamation mark, you need to update it. Right click on it and point the updater to the HDMI sub-folder.

But as I said I cannot give an exact known solution because the problem might not be as I described above, but something simpler like the new driver alters the configuration just a little and that affects the HDMI output.

Hi - did you have any luck with the new video driver? Is the only way to roll back to an old driver? Where do you get the older drivers from?

Thanks,

Ayan