begin Samuel Merritt <[EMAIL PROTECTED]> > Running twm, mpg123 in an xterm, and Mozilla with X niced to 0, the > sound still skips when I scroll in Mozilla. > > The skipping even happens with "play" (wave file player), and this > machine is grossly overpowered for just playing music and running X, so > I doubt it's a CPU time issue. kay. wasn't sure what kind of machine it was.
> I'm actually running Mandrake 9.0 on the machine in question, and X > started out niced to -10. stupid question. you looked at top while moving a window around? did you see anything interesting? also, is this a new symptom? or has it always been happening and you just now sent an email out about it? > Also, I forgot to mention earlier that I've ruled out an IRQ conflict. > Theoretically, since they're both PCI devices, the sound and video cards > should be able to share an IRQ, but I moved the video card around to > ensure that they're on different IRQs. i don't think every video card uses irq. some video cards get polled by the CPU and fetch data by explicit read accesses to I/O memory. voodoo 4/5, 1/2 and mach cards are like this. don't know about matrox. but you should be able to tell using lspci -vb. odd. i guess i'm most curious about the "is this something new or has always been a problem" question. pete > On Wed, Feb 26, 2003 at 12:38:13PM -0800, Peter Jay Salzman wrote: > > sam, > > > > have you tried with a different window manager? do you get the > > skipping around when you use mp3blaster/mpg123 under twm? that might be a > > good litmus test. > > > > also, you run debian, right? see if the "X" process is un-niced. > > debian now asks you if you want to run X with a higher priority. > > > > try to renice X to 0. see if that helps the skipping around. > > > > pete > > > > > > begin Samuel Merritt <[EMAIL PROTECTED]> > > > If I have music playing and I move a window around, switch windows, or > > > scroll a window, the music stutters. I'm using XFree86 4.2.1 and ALSA > > > 0.9.0rc2 (defaults for Mandrake 9). > > > > > > This happens in any video mode I try, from 1024x768, 24bpp down to > > > 640x480, 8bpp, though the stuttering is worse in higher resolutions and > > > color depths. > > > > > > I've also tried switching between ALSA and OSS. It makes no difference. > > > > > > The video card is a Matrox Mystique with 4MB video RAM (MGA 1064SG). > > > The sound card is an onboard CM8738. > > > > > > I'd heard about problems like this years ago, having to do with the > > > video card drivers hogging the PCI bus for long periods of time. I > > > played with the option "PciRetry", found in the mga(4) man page. The > > > stuttering is the same whether this option is on or off. > > > > > > Google doesn't come up with any relevant results; I did find a whole > > > bunch of pages about a setting that goes in system.ini, but I don't have > > > one of those. =) > > > > > > > > > -- > > > Samuel Merritt > > > OpenPGP key is at http://meat.andcheese.org/~spam/spam_at_andcheese_dot_org.asc > > > Information about PGP can be found at http://www.mindspring.com/~aegreene/pgp/ > > > > > > > > -- > > First they ignore you, then they laugh at you, then they fight you, > > then you win. -- Gandhi, being prophetic about Linux. > > > > Fingerprint: B9F1 6CF3 47C4 7CD8 D33E 70A9 A3B9 1945 67EA 951D > > _______________________________________________ > > vox-tech mailing list > > [EMAIL PROTECTED] > > http://lists.lugod.org/mailman/listinfo/vox-tech > > -- > Samuel Merritt > OpenPGP key is at http://meat.andcheese.org/~spam/spam_at_andcheese_dot_org.asc > Information about PGP can be found at http://www.mindspring.com/~aegreene/pgp/ -- First they ignore you, then they laugh at you, then they fight you, then you win. -- Gandhi, being prophetic about Linux. Fingerprint: B9F1 6CF3 47C4 7CD8 D33E 70A9 A3B9 1945 67EA 951D _______________________________________________ vox-tech mailing list [EMAIL PROTECTED] http://lists.lugod.org/mailman/listinfo/vox-tech
