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

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. Assumed

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).

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 if I

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

2014-07-14 Thread Bruce
Hi, I’m having difficulty getting more than 4 playback channels to work using alsa callbacks and direct memory write. The sound card is an RME HDSP Madi, and alsa version is 1.0.15. I’m currently forced to use this old version as having problems with later alsa and the RME card (long