[alsa-devel] [Alsa-user] hdmi sound rerouted?

Clemens Ladisch cladisch at googlemail.com
Sun Sep 29 00:32:40 CEST 2013

Dagg Stompler wrote:
>> daggs at gmx.com wrote:
>>> card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
>>> card 1: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
>>> card 2: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0]
>> The second one is called "Generic" because your kernel does not (yet)
>> know the hardware.
>>> 01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Cedar HDMI Audio [Radeon HD 5400/6300 Series]
>>> 06:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] RV635 HDMI Audio [Radeon HD 3600 Series]
>> These are the HDMI outputs of *two* graphics cards. The first one's
>> model is so new that the driver doesn't know it.
> the 3600 doesn't have hdmi socket so I think it is irrelevant for my issue.

The RV635 chip does support HDMI outputs (even if none are actually
connected), so the corresponding PCI device shows up here.

>>> If you update the kernel, you will get two devices named "HDA ATI HDMI".
> upgrade to where?

Oops.  Even the latest driver lacks the PCI IDs of many HDMI HDA devices
(aa50/aa58/aa60/aa68/aa80/aa88/aa90/aa98: Cypress/Juniper/Redwood/Cedar/

Alex, are these devices that require disabling snooping?


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