Re: [Alsa-user] Direct memory write for more than 4 channels

2014-07-16 Thread Bruce
On 16/07/2014 6:11 PM, Ralf Mardorf wrote: > On Tue, 2014-07-15 at 20:51 +1000, Bruce wrote: >> This later alsa may be a weirdo pulseaudio issue (I've tried disabling >> pulseaudio fully) but have yet to get to the bottom of it. Trying to get >> arch linux to boot, in order to avoid pulseaudio. > A

Re: [Alsa-user] Direct memory write for more than 4 channels

2014-07-16 Thread Ralf Mardorf
On Tue, 2014-07-15 at 20:51 +1000, Bruce wrote: > This later alsa may be a weirdo pulseaudio issue (I've tried disabling > pulseaudio fully) but have yet to get to the bottom of it. Trying to get > arch linux to boot, in order to avoid pulseaudio. Assumed there should be hard dependencies to pul

Re: [Alsa-user] Direct memory write for more than 4 channels

2014-07-15 Thread Bruce
On 15/07/2014 8:41 PM, Clemens Ladisch wrote: > Bruce wrote: >> I’m having difficulty getting more than 4 playback channels to work >> using alsa callbacks and direct memory write. > Does it work with aplay? I know internally aplay uses a polled write, but yes, a good idea to try anyway; I'll see

Re: [Alsa-user] Direct memory write for more than 4 channels

2014-07-15 Thread Clemens Ladisch
Bruce wrote: > I’m having difficulty getting more than 4 playback channels to work > using alsa callbacks and direct memory write. Does it work with aplay? > The 1st 4 channels work OK if I use slot ID 1, but 5th and higher do > not. Also strange pulsing noises appear on other channels (eg 31,32)