[alsa-devel] [RFC][PATCH] ELD routines and proc interface

[Wu Fengguang]

On Tue, Nov 18, 2008 at 11:55:45PM -0800, Shane W wrote:
> On Wed, Nov 19, 2008 at 03:17:57PM +0800, Wu Fengguang wrote:
> > On Tue, Nov 18, 2008 at 11:11:35PM -0800, Shane W wrote:
> > > On Thu, Nov 13, 2008 at 10:21:53AM +0800, Wu Fengguang wrote:
> > > > Create hda_eld.c for ELD routines and proc interface.
> > 
> > > Just testing this and your multichannel HDMI code over here
> > > but it doesn't seem to get ELD data for my setup.  Intel
> > > g45-id board with an Yamaha RX-v1800 receiver which is HDMI
> > > 1.3 capable.
> > 
> > Do you run the latest xorg intel driver?  Also dmesg should tell us
> > something if anything goes wrong with ELD retrieving/parsing.
> 
> Yes though Xorg wasn't running when I was doing the audio
> tests.  Pure console at that point but I fired up Xorg
> which is latest git as of today but still no ELD

Yeah sorry I missed one note. The xorg git tree only contains the
audio output enabling patches, but not yet ELD transferring patches.
(the ELD data flow is monitor => video driver => audio driver)
I called for the Xorg ELD enabling patches from Ma Ling just after
replying to your email. He should send the patches soon.

> population.  When Xorg starts, I get this in dmesg:
> [drm] Initialized i915 1.6.0 20080730 on minor 0
> [drm:i915_gem_object_bind_to_gtt] *ERROR* GTT full, but LRU
> list empty
> [drm:i915_gem_object_pin] *ERROR* Failure to bind:

> -12<6>HDMI intrinsic event: PD=1 ELDV=1

This last dmesg line is funny. The ELDV(i.e. ELD Valid) is true,
but the video driver obviously has no ELD data prepared for us.

Thanks,
Fengguang