Re: HDMI Audio screwed up w/ recent kernels

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>>>>> "AD" == Alex Deucher <alexdeucher@xxxxxxxxx> writes:

AD> That option is just a carry over from when the amdgpu was copied from
AD> radeon.  There is some code for older asics left over from when the
AD> code was originally ported from radeon.  If you want hdmi audio
AD> support you need to use the new dc modesetting code we are working on:
AD> https://cgit.freedesktop.org/~agd5f/linux/log/?h=amd-staging-4.7

AD> As for radeon, a bisection would help.  If both drivers worked before
AD> and now both have issues, I'd suggest looking at the hda audio driver.

All I know is that radeon audio worked fine in 3.x and stopped working
in 4.x  Where stopped working means fairly recognizable audio which
sounds mixed with white noise.

I doubt I can bisect.  The screen it uses is in almost constant use....

In order for the fb to be there from boot, the firmware is all compiled
into the kernels via CONFIG_EXTRA_FIRMWARE.

Given that, with 4.9, the audio has exactly the same problem with amdgpu
as with radeon, I suspect the actual problem is in the firmware.  If so,
and since I do not have whatever firmware files were installed back when
I compiled the 3. kernels, I doubt bisecting the kernel would help.

-JimC
-- 
James Cloos <cloos@xxxxxxxxxxx>         OpenPGP: 0x997A9F17ED7DAEA6
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