<div class="gmail_quote">On Sun, Oct 31, 2010 at 9:51 AM, mentoj dija <<a href="mailto:mentoj_dija@gmx.de">mentoj_dija@gmx.de</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> On 31.10.2010 01:58, Gerhard Lang wrote: > Single xruns may happen even with very high latencies just after > startup of an application, but not in a running setting. Intolerable > loss of performance may be caused by crashed and zombified jackd or > other audio applications. > Esp. in the setup phase often jackd instances persist, so have a look > into system monitor/processes and kill them if those are there. > Some devices run better with periods/buffer 2, not 3. > Look here for adjusting cpufrequency: > <a href="http://wiki.ubuntuusers.de/Prozessortaktung" target="_blank">http://wiki.ubuntuusers.de/Prozessortaktung</a> > Easiest way is using gnome-applets, just right click into a panel. > I'd not recommend switching to lowlatency or realtime kernels in this > state of progress; these later will save you the last reachable 5% of > latency, but not give you the basic functions. > ok, this x-runs are not caused by single application starts. and i even get xruns when i just run jack and nothing else. i mean, what the heck? ok. i consider to install the rt-kernel. but its gone, aint? of course, i could compile it by my own, but i know, i cant do it. it would be the first time, that compiling by myself would go right. so, i think about downgrading to 10.04. what is ok, because i dont use the studio-installation for my daily work. i tried a buffer of 2 and 4, but the same result. any other suggestions? if not, i continue with 10.04. just hope, that the firewire-driver is part of this version. my last perfectly working installation of US was 8.04 ;-) thanks for the help <div><div></div><div class="h5"> -- Ubuntu-Studio-users mailing list <a href="mailto:Ubuntu-Studio-users@lists.ubuntu.com">Ubuntu-Studio-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users</a> </div></div></blockquote></div> <meta http-equiv="content-type" content="text/html; charset=utf-8">i am running 10.04 lucid LTS with <a href="https://launchpad.net/~falk-t-j/+archive/lucid">https://launchpad.net/~falk-t-j/+archive/lucid</a> added (lucid has linux-rt in the repos, and falks PPA has the realtime kernels from <a href="https://launchpad.net/~abogani/+archive/ppa">https://launchpad.net/~abogani/+archive/ppa</a> )... the presonus firepod works great for me even at lower latency settings... i can usually push to 1.2msecs if needed, and around 5msecs is very stable... i run both an ubuntustudio 64bit install, and a 32bit vanilla ubuntu install that i added some ubuntustudio metapackges to... both have falks PPA added... -- MH <a href="http://www.myspace.com/mikeholstein">http://www.myspace.com/mikeholstein</a> <a href="http://opensourcemusician.libsyn.com/">http://opensourcemusician.libsyn.com/</a>