I have no sound on a machine Dell XPS 700 and Windows
It works without any problem. I show some details:

linux-9fsd:~ # lspci -vvnn | grep -i Audio
00:0f.1 Audio device [0403]: NVIDIA Corporation MCP55 High Definition Audio
[10de:0371] (rev a2)


linux-9fsd:~ # dmesg | grep snd
[   32.523215] snd_hda_intel 0000:00:0f.1: Disabling MSI
[   32.527230] snd_hda_intel 0000:00:0f.1: no codecs found!

linux-9fsd:~ # cd /proc/asound/
linux-9fsd:/proc/asound # ls
card0  cards  devices  hwdep  modules  oss  pcm  seq  timers  version
linux-9fsd:/proc/asound # more devices
 33:        : timer
linux-9fsd:/proc/asound # more cards
--- no soundcards ---
linux-9fsd:/proc/asound # more modules
linux-9fsd:/proc/asound #

linux-9fsd:/proc/asound # aplay -lL
null
    Discard all samples (playback) or generate zero samples (capture)
aplay: device_list:268: no soundcards found...
linux-9fsd:/proc/asound #


linux-9fsd:/proc/asound # lsmod | grep snd
snd_hda_intel          34475  0
snd_hda_controller     35103  1 snd_hda_intel
snd_hda_codec         151970  2 snd_hda_intel,snd_hda_controller
snd_hwdep              13602  1 snd_hda_codec
snd_pcm               116857  3 snd_hda_codec,snd_hda_intel,snd_hda_controller
snd_timer              33609  1 snd_pcm
snd                    87947  5
snd_hwdep,snd_timer,snd_pcm,snd_hda_codec,snd_hda_intel
soundcore              15047  2 snd,snd_hda_codec



Thanks,