Bug#670486: Does not show HDMI/DisplayPort as available output on ThinkPad X220 (Intel HDA audio)

[Josh Triplett]

On Wed, Apr 25, 2012 at 10:58:06PM -0700, Josh Triplett wrote:
> Package: pulseaudio
> Version: 1.1-3+b1
> Severity: normal
> 
> On my ThinkPad X220 (with Intel HDA audio), PulseAudio does not show
> HDMI/DisplayPort audio devices as available outputs.  ALSA finds the device,
> and I can play audio directly through ALSA via the appropriate device
> identifier ("mplayer -ao alsa:device=hw=0.3 ..."), but PulseAudio doesn't see
> it.
> 
> ~$ head -n 1 /proc/asound/card0/codec*
> ==> /proc/asound/card0/codec#0 <==
> Codec: Conexant CX20590
> 
> ==> /proc/asound/card0/codec#3 <==
> Codec: Intel CougarPoint HDMI
> 
> ~$ cat /proc/asound/cards
>  0 [PCH            ]: HDA-Intel - HDA Intel PCH
>                       HDA Intel PCH at 0xf2620000 irq 49
> 29 [ThinkPadEC     ]: ThinkPad EC - ThinkPad Console Audio Control
>                       ThinkPad Console Audio Control at EC reg 0x30, fw unknown

Also, if I explicitly run
pactl load-module module-alsa-sink device=hw:0,3
then the device shows up in PulseAudio and I can direct audio to it.

- Josh Triplett