[alsa-devel] [PATCH v3 0/5] ALSA: hda - hdmi: ATI/AMD multi-channel and HBR support

[Andre Heider]

On Mon, Oct 28, 2013 at 08:25:22PM +0200, Anssi Hannula wrote:
> 28.10.2013 20:17, Andre Heider kirjoitti:
> > On Mon, Oct 28, 2013 at 08:12:43PM +0200, Anssi Hannula wrote:
> >> 28.10.2013 19:52, Andre Heider kirjoitti:
> >>> On Fri, Oct 25, 2013 at 08:23:48PM +0300, Anssi Hannula wrote:
> >>>> 25.10.2013 19:54, Andre Heider kirjoitti:
> >>>>> cat /proc/asound/card0/eld\#0.0
> >>>>> 	monitor_present		1
> >>>>> 	eld_valid		0
> >>>>
> >>>> However, this should have eld_valid=1 and contain more info. To get a
> >>>> hint on whether it is a bug in audio or video driver, could you give a
> >>>> log with CONFIG_SND_DEBUG ?
> >>>>
> >>>> AFAICS the sound git master tree should have the necessary support in
> >>>> the radeon video driver to allow the audio driver to generate a valid
> >>>> ELD with your card.
> >>>
> >>> With CONFIG_SND_DEBUG=y I get a bunch of
> >>> "HDMI ATI/AMD: no speaker allocation for ELD"
> >>> but afaics that's about it.
> >>
> >> Thanks, that is exactly what I was looking for.
> >>
> >> Looks like a radeon driver issue - it does not seem to setup the speaker
> >> allocation registers properly (so that ALSA could read them from there),
> >> and I verified that the EDID you posted has a valid speaker allocation
> >> byte 0x4f.
> >>
> >> Just to recheck - you are running sound git master, or something else?
> > 
> > This is from 3.12-rc7 with today's sound/master (3fbdaf9b) merged on top.
> > 
> 
> Ah, OK, that certainly explains it. 3.12-x has this one:
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/radeon?id=555b1b651acf44bf27ebbb04235d38a8fd2d58dc
> 
> Could you revert that for testing, just to see if you get proper ELD
> info then?

Blergh, guess that's my fault for not just using sound/master.

But that looks better:

cat /proc/asound/card0/eld\#0.0
	monitor_present		1
	eld_valid		1
	monitor_name		
	connection_type		HDMI
	eld_version		[0x2] CEA-861D or below
	edid_version		[0x0] no CEA EDID Timing Extension block present
	manufacture_id		0x0
	product_id		0x0
	port_id			0x0
	support_hdcp		0
	support_ai		0
	audio_sync_delay	0
	speakers		[0x4f] FL/FR LFE FC RL/RR RLC/RRC
	sad_count		4
	sad0_coding_type	[0x1] LPCM
	sad0_channels		2
	sad0_rates		[0x1ee0] 32000 44100 48000 88200 96000 176400 192000
	sad0_bits		[0xe0000] 16 20 24
	sad1_coding_type	[0x2] AC-3
	sad1_channels		8
	sad1_rates		[0xe0] 32000 44100 48000
	sad1_max_bitrate	640000
	sad2_coding_type	[0x6] AAC-LC
	sad2_channels		8
	sad2_rates		[0xe0] 32000 44100 48000
	sad2_max_bitrate	640000
	sad3_coding_type	[0x7] DTS
	sad3_channels		8
	sad3_rates		[0xe0] 32000 44100 48000
	sad3_max_bitrate	1536000

Thanks,
Andre