Extra note: I brought -B to 1024 and still had no noise problem with the mouse. I think the suid may have helped most. Also, I ran it with -b 1 and locked my machine. Not a good idea, I guess... Best, dp Dave Phillips wrote: > Greetings: > > I finally resolved the mouse noise problem with ImproSculpt. Here's > what I did: > > 1. Made the csound binary suid root. > 2. Erased the CsOptions for Linux in the ImproSculpt.csd file > (they're ignored when csound is suid root). > 3. Ran the app so: > > csound --sched -d -i devaudio -o devaudio -b 512 -B 4096 -m6 > ImproSculpt.csd > > Screen redraws are slower, but the mouse noise is gone. I'm still > confused as to why all this trouble just "suddenly" occurred, but I'm > glad to have discovered a solution. I also learned a lot about PCI > latency timing, graphics card priority, hard/software buffering, and > lots of other stuff that chewed up a bunch of my time. > > Many thanks to all who responded to my dilemma, I appreciate all the > assistance and advice. > > Best regards, > > dp > > > > Gabriel Maldonado wrote: > >> Hi Dave, >> It could depend on the massive CPU resources required by improsculpt, >> so any movement on the GUI can subtract processor time, causing >> drop-outs. Have you tried to increase the buffer size? However, try >> to ask Oeyvind if this could be a possible cause. Notice that in >> CsoundAV, there is still the original FLTK code, not that modified by >> Istvan. I still have to study Istvan code, to see if there are >> substantial differences, besides merging all code in a unique cpp file. >> >> Gabriel >> >> >> Dave Phillips wrote: >> >>> Greetings: >>> >>> I've been testing various CSD files to see and hear how the FLTK >>> opcodes are supported in the most recent canonical CVS sources. Many >>> files work fine (e.g., J. M. Comajuncosas' 303 emulator, his Synth >>> Toot, and his Direct Hammond2), but I'm having a problem with >>> Oeyvind Brandtsegg's ImproSculpt. When I move the mouse in this >>> program I hear a nasty ripping noise tracking the mouse movement. >>> Noise occurs when I change window focus or move a window. Note that >>> this noise does not occur with other FLTK-based apps, so I'm >>> wondering what there might be in ImproSculpt to cause this trouble. >>> Steven Yi suggested that the FLTK updating may itself be a problem, >>> but the other apps tested work fine. So I'm at an impasse and can >>> use some suggestions for troubleshooting. Sorry to bother the >>> developer's list but it seemed the better forum to ask in. Could >>> Steven be right about the FLTK opcodes themselves causing the >>> problem ? Would there be any advantage compiling Csound against a >>> static libfltk ? >>> >>> Best, >>> >>> Dave Phillips >>> >>> >> >> > > >
