[LAU] JACK and Sound OpenFirmware?

Wim Taymans wim.taymans at gmail.com
Wed Aug 19 14:02:42 CEST 2020


I have the same model here. It does not seem to like period sizes that
are nice powers of 2. This works for me:

jackd -d alsa -p 1032

other period sizes that work: 120, 264, 504, 2040

I don't know why that is...


On Tue, 18 Aug 2020 at 15:24, Mario Lang <mlang at blind.guru> wrote:
> Hi.
> With kernel 5.7, my system finally switched over to snd_sof_pci for the
> intenal card.  I can use mpv and alike via alsa directly, but
> when I try to start JACK I always get the following message:
> ALSA: cannot set period size to 1024 frames for playback
> Adding the verbose flag to JACK doesn't make it any more informativ
> regarding this problem.   With the old hda driver, JACK was perfectly
> working with a buffer size of 1024 (and less).
> Does anyone know what I can do to make JACK work with the internal card?
> Or at least how to debug what is actually preventing it from working?
> I am using a Lenovo X1 Carbon 7th Gen.
> --
> CYa
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