Greetings: Thank you to all who replied with suggestions for resolving my sound problem. After working all last night on it I've come to some new possible conclusions. First, sound is fine outside of X. I tested realtime output from three long Csound compositions (Face On Mars, Incantations, and Trapped In Convert), they all played fine, even when I moved the console mouse. Second, sound is fine in X with *some* applications. XMMS plays things perfectly, no glitches while I move the mouse or switch workspaces. The major offender has been Csound when I run an app (ImproSculpt) utilizing the FLTK opcodes. The audio distortion had become intolerable, making the app nearly useless. Btw, the distortion wasn't just from the mouse, it was bad even without mouse movement, full of pops and crackles. The mouse really zippered when I moved it across the display, and moving windows chopped things up more. Following advice found in an article by Daniel Robbins (http://www-106.ibm.com/developerworks/library/l-hw2.html) I adjusted the PCI latency timer (with setpci) for my sound card. At last I eliminated *most* of the trouble with ImproSculpt. The mouse still zips but the overall distortion is gone. I thought that perhaps FLTK had been compiled with GL dependencies, but 'ldd lbfltk.so' showed none. I do have the no-hlt option appended to lilo.conf, but I think that the nVidia driver's DRI overrides the option. Bummer. So I'm still trying to eliminate the mouse zip in ImproSculpt, but overall sound is much improved. Btw, here's what I have in lilo.conf, I presume I have the syntax correct : append="hdc=ide-scsi no-hlt root=LABEL=/" Lilo doesn't complain about it, so I figure it's right, but maybe not... ? Back to the hack... Best, dp
