With the HDMI cable connected I get this:
$ aplay -l **** Lijst van PLAYBACK hardware-apparaten **** kaart 0: MID [HDA Intel MID], apparaat 3: HDMI 0 [HDMI 0] Sub-apparaten: 1/1 Sub-apparaat #0: subdevice #0 kaart 0: MID [HDA Intel MID], apparaat 7: HDMI 1 [HDMI 1] Sub-apparaten: 1/1 Sub-apparaat #0: subdevice #0 kaart 0: MID [HDA Intel MID], apparaat 8: HDMI 2 [HDMI 2] Sub-apparaten: 1/1 Sub-apparaat #0: subdevice #0 kaart 1: PCH [HDA Intel PCH], apparaat 0: VT1802 Analog [VT1802 Analog] Sub-apparaten: 1/1 Sub-apparaat #0: subdevice #0 kaart 1: PCH [HDA Intel PCH], apparaat 2: VT1802 Alt Analog [VT1802 Alt Analog] Sub-apparaten: 1/1 Sub-apparaat #0: subdevice #0
$ cat /proc/asound/card0/eld#0.0 monitor_present 0 eld_valid 0 $ cat /proc/asound/card0/eld#0.1 monitor_present 1 eld_valid 0 $ cat /proc/asound/card0/eld#0.2 monitor_present 0 eld_valid 0
With the HDMI cable connected I get this:
$ aplay -l
**** Lijst van PLAYBACK hardware-apparaten ****
kaart 0: MID [HDA Intel MID], apparaat 3: HDMI 0 [HDMI 0]
Sub-apparaten: 1/1
Sub-apparaat #0: subdevice #0
kaart 0: MID [HDA Intel MID], apparaat 7: HDMI 1 [HDMI 1]
Sub-apparaten: 1/1
Sub-apparaat #0: subdevice #0
kaart 0: MID [HDA Intel MID], apparaat 8: HDMI 2 [HDMI 2]
Sub-apparaten: 1/1
Sub-apparaat #0: subdevice #0
kaart 1: PCH [HDA Intel PCH], apparaat 0: VT1802 Analog [VT1802 Analog]
Sub-apparaten: 1/1
Sub-apparaat #0: subdevice #0
kaart 1: PCH [HDA Intel PCH], apparaat 2: VT1802 Alt Analog [VT1802 Alt Analog]
Sub-apparaten: 1/1
Sub-apparaat #0: subdevice #0
$ cat /proc/asound/ card0/eld# 0.0 card0/eld# 0.1 card0/eld# 0.2
monitor_present 0
eld_valid 0
$ cat /proc/asound/
monitor_present 1
eld_valid 0
$ cat /proc/asound/
monitor_present 0
eld_valid 0