On Sun, Apr 08, 2007 at 01:38:34PM +0200, Karl Hammar wrote: > Andrew Burgess <aab@xxxxxxxxxxx>: > > Paul Davis wrote: > > >> What could cause clicks without xruns? I'm baffled. > > >PCI bus hogging, for one thing. consider running a script like this > ... > > Here one that works automatically for all multimedia devices: > > # find multimedia devices > > pcis=$(lspci -v | grep Multimedia | awk '{ print $1; }') > > if test -z "$pcis"; then > > echo WARNING: no multimedia devices found on pci bus > > else > > for p in $pcis; do > > echo set maximum latency timer for $p > > setpci -s $p latency_timer=ff > > done > > fi > > It does not work for me: > > $ lspci | grep Multi | head -1 | cut -b-75 > 0000:00:05.0 Multimedia audio controller: nVidia Corporation nForce MultiMe > $ setpci -s 0000:00:05.0 latency_timer > lspci: -s: Invalid slot number > $ setpci -s 00:05.0 latency_timer > 00 > > I have to remove the first 0000: from lspci, as in: > > $ cat /usr/local/sbin/pci.set.audio > #!/bin/sh > > val=${1:-ff} > # find multimedia devices > pcis=$( lspci -n | grep ' 0401: ' | cut -f1 -d\ | cut -f2- -d: ) > if test -z "$pcis"; then > echo WARNING: no multimedia devices found on pci bus > else > for p in $pcis; do > lspci -s $p > echo -en \\tmaximum latency timer:\ > setpci -s $p latency_timer | tr -s ' \n' ' ' > setpci -s $p latency_timer=$val > /dev/null > echo -n '-> ' > setpci -s $p latency_timer > done > fi > $ > I am slightly confused. Is it necessary to increase the latency timer for a pci sound card? This seems slightly counter-intuitive. Wouldn't this reduce the performance of the sound system through that card? The only thing the above script changes on my system is the latency of the SB Live. James _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-user