Well, maybe I'm falling back again in my very f*cking video driver problems. I spent tens and tens of hours in that... and I don't want to use my time in something like that any more (*)
As I have a generic kernel (3.2.0-49-generic), I'll try different things:
- Installing lowlatency kernel.
- Installing Ubuntu Studio 12.04.
- Installing Ubuntu 13.10 and latest video drivers.... and look if someone of the f*cking ATI company took care about the ones who have the same problem as I (maybe I am the only one).
Anyway, based in what we talked here... I think it is really necessary to modify the sample bank playing start-point to synch with what I listen when I record. "More that sure" (an argentine expression) that I will finish using my 30ms latency... so, I should treat with that.
Nau: if I use 128 frames Jack config, I get 14.2ms of latency. Wow, better that you! Ups, sorry... but I can't use my patch with that config. Maybe you could try my patch and see what happen...? You can download here: http://puredata.hurleur.com/viewtopic.php?pid=37430 (the last version in the thread has no synch fix, but you can test the XRUNS).
Katja or Nau: I'll use this system for my spectacle "El Circo 3D", using BlenderPlayer and PureData (Jack in 1024 frames) to play my digital puppeters. I don't need (and I can't use) low latency for that. In the same show, I plan to close BlenderPlayer and restart Jack with 256 frames to use PureData with the looping-station patch. QUESTION: will I have problems if I use a lowlatency kernel and run BlenderPlayer and PureData at the same time? Because I know that lowlatency (and RT) is not for multitasking work... or am I wrong?
Thanks Katja, thanks Nau.
(*): I have a hybrid video card: ATI 4250 and ATI 5650. I work with realtime 3D graphics, using BlenderPlayer. So... I really need proprietary drivers. I NEVER COULD USE THE 5650 IN LINUX WITH PROPRIETARY'S. No, man, there's no way, it can't switch to discrete card. Once, I could boot with free drivers and that card... but, for 3D, it is so much slower than the 4250 with proprietary ones. So, I spent a lot of money buying this laptop... and I can't take advantage of it. And my economony (and my country's economy) is not for throwing away it and buy another one.