Lee's reply.
There's really no telling. It's misleading to say "snd-hda-intel is supported" because every single laptop and motherboard with snd-hda-intel is slightly different and there's absolutely no documentation on what the differences are. Possibly the hardware is oncorrectly detected. It's also possible that these devices simply have no hardware master volume and Windows emulates it in software.
Since you only seem to have 2 channels, doesn't "Front" work as a master?
I believe this is right. On a laptop with this chipset 'MASTER' vol is more likely to be emulated and 'PCM' and 'FRONT' should be enough to get sound. Well, there's one less thing to worry about. :-D