I got a weird annoyance that the only "solution" to I have found doesn't work. Plenty of threads about the same issue (device disconnected sound playing whenever the display is turned on after being off for a while), but the solution every OP says works is disabling the HDMI sound device if not using it. I already had that disabled simply due to not liking my audio output randomly changing from my good speakers to the shitty TV speakers; the only enabled audio output device is the sound chip on the motherboard.