Hi Markus, I've been able to reproduce this on my A31 board with linux-next(plays at 44100 but not at 96K)so it is an issue. I also tested the same code on my A64 and it worked fine, The blocks are very similar so it maybe a clocking issue, I'll look into this. BR, CK
On 21 May 2018 at 20:17, Markus Mitsch markusmitsch86@googlemail.com wrote:
2018-05-21 15:17 GMT+02:00 Maxime Ripard maxime.ripard@bootlin.com:
On Mon, May 21, 2018 at 02:43:55PM +0200, Markus Mitsch wrote:
2018-05-21 11:43 GMT+02:00 Markus Mitsch markusmitsch86@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
Hello. I dont know since when this problem appears. When saying "new" i refered to my older post. I tried to look into the dts file and the code but i am afraid this is a bit too high for me. I can say that the analog output works, even at high sampling rates. And I have read something about a clock source could be the problem. I'm sorry I can't tell you any more.
mfg Markus