| tjingboem | does ubuntustudio come with a low latency kernel that supports the nvidia drivers? | 09:29 |
|---|---|---|
| ailo | tjingboem, At this time ubuntustudio / ubuntu doesn't include a low latency kernel in the repo, but you can add a ppa to install it | 10:11 |
| ailo | The -lowlatency kernel is more or less exactly the same as -generic, only it has been configured slightly differently when compiled, so anything that works with the standard -generic should also work with -lowlatency | 10:11 |
| ailo | Here's a launchpad page for it https://launchpad.net/~abogani/+archive/ppa | 10:12 |
| ailo | To install the kernel, just do.. | 10:12 |
| ailo | sudo add-apt-repository ppa:abogani/ppa | 10:13 |
| ailo | sudo apt-get update | 10:13 |
| ailo | sudo apt-get install linux-lowlatency | 10:13 |
| ailo | At times, the kernel will not work with nvidia drivers due to missing headers or something like that | 10:14 |
| tjingboem | ailo, thanks | 10:15 |
| ailo | At this time, I believe -lowlatency will not work with nvidia drivers, since it's ahead of -generic. I would need to test to be sure | 10:15 |
| tjingboem | but i tried to install that kernel inXubuntu11.10 | 10:15 |
| ailo | What kernel? | 10:15 |
| tjingboem | and nvidia drivers don work | 10:15 |
| tjingboem | one moment | 10:16 |
| tjingboem | 3.0.0.13.15 | 10:16 |
| ailo | Yeah, it's ahead of -generic | 10:16 |
| tjingboem | Xubuntu refuses to start | 10:17 |
| tjingboem | can i install an older low latency kernel in 11.10? | 10:17 |
| ailo | You mean, you end up with a bash shell login, instead of a graphical one? | 10:17 |
| tjingboem | with proven nvidia drivers? | 10:17 |
| tjingboem | even before that | 10:18 |
| tjingboem | it stops nearly right away | 10:18 |
| tjingboem | just when the splash screen of Xubuntu comes up | 10:18 |
| tjingboem | i get some xruns with generic kernel | 10:19 |
| tjingboem | using twinview with nvidia | 10:19 |
| tjingboem | latency of 1.3 ms | 10:20 |
| ailo | As soon as -generic is updated, it should work | 10:20 |
| tjingboem | but sometimes xruns | 10:20 |
| tjingboem | you mean with the generic kernel? | 10:20 |
| ailo | No, the -lowlatency | 10:21 |
| ailo | I'm not totally sure here, mind you, but I believe the headers for -generic need to be installed | 10:21 |
| tjingboem | i do not understand: shouldn t i install the nvidia drivers once i am in the running low latency kernel? | 10:22 |
| ailo | It's actually the headers for -lowlatency you need, but this is the problem I get when trying to install them "linux-headers-3.0.0-13-lowlatency : Depends: linux-headers-3.0.0-13 but it is not installable" | 10:22 |
| tjingboem | so it builds in that kernel? | 10:23 |
| tjingboem | right | 10:23 |
| tjingboem | i get that too | 10:23 |
| ailo | Yea, in orders for the drivers to work with the kernel, something needs to be built, and the headers are used for that. | 10:24 |
| ailo | That happens automatically when updating the kernel each time, given the headers are exisiting | 10:24 |
| tjingboem | i see i have linux-headers-generic installed | 10:26 |
| ailo | Yea, but not the right version | 10:26 |
| ailo | You need 3.0.0-13 | 10:26 |
| tjingboem | true :( | 10:26 |
| ailo | Hopefully the -lowlatency will be included in the main repo for the next release. Until then we rely on Alessio Bogani to build and maintain the -lowlatency at that ppa | 10:27 |
| ailo | tjingboem, drop by #opensourcemusicians if you want to talk generally about linux audio | 10:32 |
| tjingboem | will do ailo, thanks for your attention! | 10:34 |
| ailo | tjingboem, No problem. | 10:35 |
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