Chris Lyon wrote: >I'm sorry that I've obviously phrased this question all wrong. >so I'll try to be a little bit more detailed this time. > >I have now installed Mandrake 10.1 on the machine. >and now aplay -l does indeed report the existance of UA-100 card >kscd shows all the typical signs of playing a cd, it lists tracks, it >starts counting when play is pressed, >But no sound emerges. >amixer reports no mixer elements, or nothing. > >/proc/asound/cards displays an endless stream of >0 [UA100 ]: USB-Audio - UA - 100 > Roland UA - 100 at usb-0000:00:07.2 - 2, full >speed I don't know what kernel version you're on, but there is a bug in procfs in 2.6.8 that causes a cat of any file in /proc to loop endelessly. >if I try to select a Device with >aplay -D= ***** >nothing I type in seems to make any sense to it. >if I try to list pcm devices to plug into the above line with aplay -D >the results are to say the least incomprehensable. With only one card you should no longer need to specify -D any more. But normally "-D hw:0,0,0" should work if you have /proc/asound/card0/pcm0p/sub0. >Where do I go next? This used to work when I installed 9.2 originally >but I have been poking & proding for 4 days now and It still desn't >work. ONce again I apologies for the way I present my questions but I am >NOT pestering before trying, I am on a last ditch attempt to play a CD >on a linux box. >I won't bore you with my background, but I have a little involvement in >the synth, computing and audio field and yet this is now getting way >beyond a joke. I have had this playing with Micheal Minns MMUSAUDIO . >However ALSA seems the way to go for all things Audio and Linux. >So how do you check the signal path in a system? and what do you do if a >device appears not to be supported by the mixing facilities? - If you cat /proc/asound/devices you should see a ctl and playback device with "[0-..." in the line (0 is your card number I think). - cat /proc/bus/usb/devices, look at the interfaces (I:) provided on you USB device. And check if the interfaces have a "Driver=" entry. My 2 cents, Martin
