Hi there.
I was interested to try out pd after reading about it in Linux User and Developer magazine. I have had some problems getting it running though. Currently, I am failing to get any audio through alsa, oss or jack. Also, however I run it, the interface is REALLY slow. With new windows opening taking at least 10-20 seconds. In particular, anything i seem to click on the testtone.pd (Media->Test Audio and Midi) window takes at least 30 seconds to respond.
These are the error messages (relating to OSS) I get when I run pd -verbose (but I get no sound): opened /dev/dsp for reading and writing
opened audio output on /dev/dsp; got 2 channels bytes per sample = 2 setting nfrags = 8, fragsize 1024
audiobuffer set to 50 msec OSS: requested audio buffer size 8820 limited to 8192 opened audio input device /dev/dsp; got 2 channels bytes per sample = 2 OSS: issuing first ADC 'read' ... Pd: system call timed out ...done.
When I specify -alsa on the command line, I get the following message, about 1 second after the program starts: audio I/O stuck... closing audio
When I try with the -jack switch instead, none of alsa, oss or jack are selected in the media menu, even if I try to select it, I get no output, and the Audio Settings dialog will not work. Also, there appears to be no extra clients in jack.
The compute audio switch is responsive, but it doesn't seem to make a difference to the audio with it being on.
I have tried using the current gentoo portage ebuild, pd-0.37.1 and now, I have ./configure, make, make installed pd-0.38-0test8. Both have the same issues. Other software versions, all using gentoo portage: jackd 0.98.1, alsa-lib 1.0.5, tk 8.3.4-r1, tcl 8.3.4. I'm running linux 2.6.8.1 with the realtime-lsm module in and loaded with the correct group for me set. My alsa driver is via82xx and my audio hardware is the chipset found on an Asus A7V600 motherboard. It's listed in /proc/pci thus:
Bus 0, device 17, function 5: Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 96). IRQ 11. I/O at 0xe000 [0xe0ff].
It seems to work fine with jackd and all alsa applications. Below I've put my /proc/cpuinfo if it's any use and I have 512MB of memory on this machine.
If anyone can offer me any hints, I would be very greatful.
-bill
/proc/cpuinfo: processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 8 model name : AMD Athlon(TM) XP 2000+ stepping : 1 cpu MHz : 1667.523 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow bogomips : 3284.99