[alsa-devel] [linux-sunxi] [BUG] On Allwinner A20 Board Cubietruck distorted SPDIF opical output

[Maxime Ripard]

On Mon, May 21, 2018 at 02:43:55PM +0200, Markus Mitsch wrote:
> 2018-05-21 11:43 GMT+02:00 Markus Mitsch <markusmitsch86 at googlemail.com>:
> >>> Hello,
> >>>
> >>> i have a new problem. if i want to output sound from optical i get
> >>> distorted sound. At 44.1 khz its like an old vinly, but at 48 khz and
> >>> higher it is very bad. thanks in advance for your time.
> >
> >> Hi Markus,
> >> I haven't tested it for a while but when I did it worked as high as
> >> 96K with no issues. Does it work ok with the original cubietruck
> >> software?,
> >> CK
> >
> > Hello,
> > i am using arch linux with mainline kernel 4.16.8. parhaps i can try
> > today with official image.
> > mfg
> 
> Hi.
> So, with debian image from 2014 with 3.4.79 kernel the sound is clear
> up to 96 khz.

You said that it is a new problem, when was it introduced? Could you
bisect the issue?

Maxime

-- 
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
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