I just purchased an XPS 13 9360 with the i5/8GB/256GB SSD configuration, running Windows 10 Pro. The laptop is exhibiting an issue where if there are no sounds played for 30 or seconds or so, the next sound is delayed by about 2 seconds. For example, when a UAC prompt appears, the sound will happen 2 seconds after the dialog box appears. If there is already a sound playing (i.e. music in the background), then the sound will not be delayed. It seems like there is a power management issue and it takes the sound card a few seconds to "wake up" after a period of inactivity. This also causes issues with certain web video players.
I have updated the BIOS to the latest 1.2.3 version, and also re-installed the audio driver using version 6.0.1.7989, A02 from the dell site. Any further suggestions on how to remedy this?
Thanks!