Dear AU list, Sorry if this is received more than once, the original never seemed to arrive... I have linux install on a powerbook G4 titanium and the sound does not work. At best I get a short burst of sound 1-5seconds long and then nothing and the application hangs (in this case aplay). I have tried my distro alsa and compiling 1.0.15 from scratch and I get the same result. I have determined that this line in aplay is where the fault is: line 1260: r= writei_func(handle, data, count); I am presuming this is where the data is written to the driver and what happens is the program calls writei fine for a few calls and after a random amount of time (normally 1-5 seconds). writei never returns and the sound stops. writei seems to be pointing to snd_pcm_writei which I am guessing evenutally calls a a kernel driver API function somewhere (but I don't know where). I have recompiled the alsa driver with debugging on and explicitly turned on the debugging printks in the powermac tumbler driver. These indicate that the powermac tumbler driver is being used but give no indication of any problem. I should add that the sound worked perfectly under maxosx. It looks to me like this is a kernel driver / hardware issue and I need advice as to how to track this and debug it. I am using alsa 1.0.15 kernel 2.6.22.13-0.3 (suse 10.3) on a ppc and I think I have a powermac tumbler sound card. Any hints gratefully received. BTW The AOA / soundbus devices would not compile for me - it looks like the kernel api interface has changed and the module has not been changed to match, the offending call is add_uevent_var in aoa/soundbus/core.c. I am not sure if it is out of date or not maintained but the number of parameters does not match the correct number of parameters in my kernel sources so it will not compile. Since this is may be a driver issue is there a better place to post this problem, LKML for instance? Cheers, SA _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
