I have the same problem but have no Nvidia (Samsung 90X3A, Sandy Bridge Intel HD 3000). No HDMI sound and no option to select it in the settings.
aplay -l gives:
**** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0
I have the same problem but have no Nvidia (Samsung 90X3A, Sandy Bridge Intel HD 3000). No HDMI sound and no option to select it in the settings.
aplay -l gives:
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0