andy@andy-desktop:~$ cat /proc/asound/card*/eld*
monitor_present		1
eld_valid		1
monitor_name		Panasonic-TV
connection_type		HDMI
eld_version		[0x2] CEA-861D or below
edid_version		[0x0] no CEA EDID Timing Extension block present
manufacture_id		0xa934
product_id		0xa0a6
port_id			0x10000000005
support_hdcp		0
support_ai		0
audio_sync_delay	0
speakers		[0x1] FL/FR
sad_count		1
sad0_coding_type	[0x1] LPCM
sad0_channels		2
sad0_rates		[0xe0] 32000 44100 48000
sad0_bits		[0x20000] 16
monitor_present		0
eld_valid		0
monitor_present		0
eld_valid		0
monitor_present		0
eld_valid		0
monitor_present		0
eld_valid		0
monitor_present		0
eld_valid		0
andy@andy-desktop:~$ uname -a
Linux andy-desktop 3.19.0-22-generic #22-Ubuntu SMP Tue Jun 16 17:15:15 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux