ALSA Data shows audio device is inaccessible due to D3cold power state
[ 7.181517] snd_hda_intel 0000:00:1f.3: Digital mics found on Skylake platform, using SST driver [ 14.077463] snd_hda_intel 0000:01:00.1: Unable to change power state from D3cold to D0, device inaccessible [ 53.320872] snd_hda_intel 0000:01:00.1: Unable to change power state from D3cold to D0, device inaccessible
Native PCI Power Management — The Linux Kernel documentation
There are two variants of the D3 state defined by the specification. The first one is D3hot, referred to as the software accessible D3, because devices can be programmed to go into it. The second one, D3cold, is the state that PCI devices are in when the supply voltage (Vcc) is removed from them. It is not possible to program a PCI device to go into D3cold
the kernel can switch the device back and forth between D0 and the supported low-power states (except for D3cold)
The transition from D3cold to D0 occurs when the supply voltage is provided to the device (i.e. power is restored). In that case the device returns to D0 with a full power-on reset sequence and the power-on defaults are restored to the device by hardware just as at initial power up.
If system is dual-booting with Windows OS: