Originally posted by Qaridarium
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Northern Islands HDMI audio?
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Everything you'd need is in the register headers we released. You need to parse the supported audio information from the monitor and set up the sound driver appropriately to send multi-channel and finally, specify the audio format being sent to the monitor in the hdmi packets that the graphics driver sends. The graphics driver is really just a go-between the monitor and the sound card. The graphics driver is responsible for passing the monitor's audio capabilities to the sound card and then telling the monitor what format the sound card is sending.
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Originally posted by Vincenzov View PostHi, sorry my english is bad.
A patch to apply kernel 3.4.0???
I tried to patch the kernel with a patch, but I get a compile error radeon screen.
Thanks
(Italian language: Per quanto ne so non c'? nessuna patch per il supporto audio via HDMI per Northern Islands. Dove hai preso quella patch?)
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Last edited by Vincenzov; 08 April 2012, 07:11 AM.
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It's not a question of 5xxx vs 6xxx -- that is Alex's "we had to hack some of the code out in order to be able to release it, but this has most of what you need" patch. It's not expected to compile or work in its current state, but we were hoping it would be useful to someone working on HDMI audio.
I forget who asked about multichannel support -- first key point is that the limitation is in the generic audio driver, not the HDMI audio portion (we released info which should be enough for the HDMI audio hw). The HD Audio public spec used to be 2 channel only and our hardware used some third party info to support 5.1 etc..
The public spec was recently updated to include multichannel support; what I don't know yet is whether the public HW spec matches our HW, ie whether that is sufficient to add multichannel support to the audio driver.Test signature
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