| ronj | ailo_, I'm doing some -lowlatency testing, did you do some? | 02:09 |
|---|---|---|
| holstein | hey ronj | 02:15 |
| holstein | i usually get my presonus firepod going | 02:15 |
| holstein | start ardour | 02:15 |
| holstein | and route my 8 inputs from the firepod to 8 tracks in ardour | 02:16 |
| holstein | let it roll record for an hour or so | 02:16 |
| ronj | holstein, hola | 02:34 |
| ronj | yup | 02:34 |
| ronj | results yet? | 02:34 |
| holstein | o/ | 02:34 |
| holstein | yeah, i can do that with no xruns at around 1.7ms latency | 02:35 |
| ronj | holstein, by the way I'm preparing a mail. why the hell these doubts around lowlatency?! | 02:35 |
| holstein | with a -realtime kernel | 02:35 |
| holstein | not near that without though | 02:35 |
| ronj | everybody seemed to agree it is the path to follow | 02:35 |
| holstein | with the -lowlatency kernel | 02:35 |
| holstein | BUT | 02:35 |
| ronj | and now Alessio comes back on this | 02:35 |
| ronj | did I miss something? | 02:35 |
| holstein | i think something about firewire still needs -realtime | 02:35 |
| ronj | ? | 02:35 |
| holstein | ronj: not sure | 02:36 |
| holstein | i think abogani got a little discouraged | 02:36 |
| ronj | hm | 02:36 |
| holstein | doing everything on his own | 02:36 |
| ronj | sure | 02:36 |
| holstein | i think he's back into it now though | 02:36 |
| holstein | there a PPA for them | 02:36 |
| holstein | for natty | 02:36 |
| ronj | yup I'm testing it right now | 02:37 |
| ronj | but we're redoing things we did this summer :-/ | 02:37 |
| ronj | (I mean the discussion, testing is always good) | 02:37 |
| holstein | :) | 02:37 |
| ronj | holstein, what are your minLatWithNoXruns for generic/lowlat/realtime? | 02:40 |
| holstein | to be honest | 02:40 |
| holstein | with a generic or lowlat | 02:40 |
| holstein | and my firepod | 02:40 |
| ronj | generic/lowlat/realtime | 02:40 |
| holstein | i cant start it without xruns | 02:40 |
| holstein | BUT i have tested a bit with a USB device | 02:40 |
| ronj | well, excluding the first few seconds | 02:40 |
| holstein | an maudio transit | 02:40 |
| holstein | and internal cards | 02:41 |
| ronj | oh ok | 02:41 |
| holstein | and the performance is much more similar all the time | 02:41 |
| holstein | quite tolerable | 02:41 |
| holstein | i still use the -realtime though | 02:41 |
| ronj | but with your fw card, increasing the delay, were you able to get to no xruns on lowlat? | 02:41 |
| holstein | i can always push a little harder | 02:41 |
| holstein | ronj: not reliably | 02:42 |
| ronj | hmmm | 02:42 |
| holstein | i think i was tring around 11ms | 02:42 |
| holstein | or so | 02:42 |
| ronj | interesting | 02:42 |
| holstein | maybe i did 20ms | 02:42 |
| holstein | i'll have to try again | 02:42 |
| holstein | now that i have a laptop that is easy to test all kernels and all interfaces with | 02:42 |
| ronj | will see with the recent kernel but with my TI chip I had consistent generic:notreliable/lowlat:4ms/realtime:2ms | 02:43 |
| ronj | weird yours is not consistent | 02:43 |
| ronj | yup | 02:43 |
| holstein | ronj: thats great | 02:43 |
| holstein | what device? | 02:43 |
| ronj | Startech EC1U2F | 02:44 |
| holstein | and, is this 10.04? | 02:44 |
| holstein | 10.10? | 02:44 |
| holstein | jack2? | 02:44 |
| holstein | i have falks PPA with jack2 in 10.04 | 02:44 |
| ronj | well these tests were this summer, on 10.04pre | 02:44 |
| ronj | jack2 | 02:44 |
| ronj | falktx ppa yes | 02:44 |
| holstein | i think lowlatency is the future | 02:44 |
| holstein | the near future at least | 02:45 |
| ronj | the future are singing kittens | 02:45 |
| holstein | lol | 02:45 |
| ronj | holstein, you'll have stuff to report to Alessio once done with your benchmarks? | 02:50 |
| holstein | sure | 02:51 |
| holstein | i'll need to install natty though | 02:52 |
| holstein | i think thats where he is right? | 02:52 |
| ronj | yes | 02:52 |
| ronj | beware, the ubustu iso is picky these times | 02:52 |
| ronj | just install the minimum audio selection | 02:52 |
| holstein | yeah, GRUB install changed | 02:52 |
| holstein | on the live CD | 02:53 |
| ronj | yup, and dependency issues in the video packages | 02:53 |
| ronj | holstein, did the key to show GRUB change from SHIFT to something else? | 03:25 |
| ronj | -lowlat successfully installed but I can't boot it :P | 03:25 |
| ronj | when I press shift nothing happens | 03:25 |
| holstein | ronj: not that i know of | 03:26 |
| holstein | but i always go in and unhide it | 03:26 |
| ronj | uh I guess it's in grub.cfg? | 03:27 |
| holstein | /etc/default/grub | 03:28 |
| holstein | i do | 03:28 |
| holstein | #GRUB_HIDDEN_TIMEOUT=0 | 03:28 |
| ronj | ok | 03:28 |
| holstein | and sometimes | 03:28 |
| holstein | GRUB_TIMEOUT=-1 | 03:28 |
| holstein | when i dont want the time | 03:28 |
| holstein | timer* | 03:29 |
| holstein | ronj: and run sudo update-grub afterward | 03:29 |
| holstein | to apply the changes | 03:29 |
| ronj | F*CK when installing lowlatency I also updated my packages, and now I'm unable to login | 03:29 |
| ronj | ultra-meh | 03:29 |
| ronj | meh | 03:29 |
| ronj | meh | 03:29 |
| ronj | meh | 03:29 |
| holstein | :/ | 03:30 |
| balleyne | I recently upgrade to Ubuntu Studio 10.04 from 9.04 (through 9.10), and when I run qjackctl and try to connect to my presonus firepod soundcard, it fails and the messages window says "jackd: unknown driver 'freebob'" and when I try 'firewire', it says "cannot load driver module firewire". Help? | 16:21 |
| holstein | balleyne: i need to run | 16:23 |
| holstein | BUT | 16:23 |
| holstein | i have that hardware | 16:23 |
| holstein | try running sudo qjackctl | 16:23 |
| holstein | se if you have permissions issues | 16:23 |
| holstein | you want to use the 'firewire' driver | 16:24 |
| balleyne | holstein: ah, ok, thanks! | 16:24 |
| holstein | google 'ubuntu firewire wiki' | 16:24 |
| holstein | and you'll see some particulars on fixing permissions | 16:24 |
| balleyne | holstein:great, thank you | 16:24 |
| balleyne | holestin: I remember doing that for older versions of Ubuntu Studio, that could well be it... I'll check it out, thanks! | 16:24 |
| holstein | BBL... if you need... also #opensourcemusicians :) | 16:24 |
| balleyne | holstein: awesome, thanks :) | 16:25 |
| balleyne | holstein: fixed it already, thank you! | 16:27 |
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