Laptop setup roadmap

  • mcskelle
Posted: Thu, 02/12/2009 - 14:14
Hi all I want setup my laptop so it can be used as centerpiece in my live music performance using jack and renoise + other small jack clients. Now, I've been installing distros for a couple of month trying different audio-dedicated distros, and I've found that 64studio 2.1 has the best out-of-the-box performance. But its not perfect without some tweaking. I'm making this thread to gather some tips from 64studio users, helping me tweak my out-of-the-box setup, since i feel i'm not that far away from a good-enough setup. I basically have 2 issues after installing 2.1: 1. When moving the windows or doing other gfx-intensive work, my cpu is heavely used creating xruns. It looks like i'm NOT having any gfx-hardware support enabled out-of-the-box. My onboard gfx is intel 946 - its pretty well know i guess. 2. How do i cope with my onboard HDA Intel sound card. I like to use for wathcing youtube and stuff like that, but otherwize i dont need it. HDA intell is also pretty well know. This card cant be diabled in the bios. I'm using a ESI maya44 usb soundcard as my primary audio card. In general terms, how shoud i go about resolving issues with 1 and 2? Here is some specs: Medion Laptop, dual 1.5 GHz core, 2 gigs ram, intel 946 onboard gfx, HDA intel onboard sound, ESI maya 44 usb audio.

sean

  • mcskelle
  • 04/17/08
  • Fri, 02/13/2009 - 15:14
sure thing, will do!

mcskelle, Please report

  • seanbutnotheard
  • 07/04/08
  • Fri, 02/13/2009 - 13:58
mcskelle, Please report your "roadmap" back here when you've tweaked it, I will be doing something similar for a friend in the near future and I'd love to know what steps went into your successful system (and of course what steps caused problems). Thanks!

Seek and ye shall find...

  • Quentin Harley
  • 05/24/07
  • Fri, 02/13/2009 - 08:28
Enjoy!

question to Quentin

  • mcskelle
  • 04/17/08
  • Thu, 02/12/2009 - 19:56
But Quentin, how do i install 2.6.26 on 2.1 or 3.0? sorry for being noobish :-)

Curious

  • Quentin Harley
  • 05/24/07
  • Thu, 02/12/2009 - 19:11
I would recommend installing the 2.6.26 kernel on "Curious" and check out the performance. 2.6.26 also installs and runs well in 2.1, so you could try it under "Develop" This kernel has much better performance than 2.6.21 on my laptop so I can recommend it. I do not know of external GPU's for laptops :-(

answer to Quentin Harley

  • mcskelle
  • 04/17/08
  • Thu, 02/12/2009 - 15:56
Thanks man - appriciated! If the solution is to install a new kernel, I think i'm better off using another fresher distro than 64 2.1, right? It seems pretty radical, but i'm up of it as long as it can be done using package mangers and NOT by compiling myself. How exaclty should i do it, you think? I now have three installations: 1. 64 2.1 for tinkering with, I call i Develop 2. 64 2.1 NOT for tinkering with, I call it Performance 3. 64 3.0 alpha because I'm curious all three is running kernel Linux 64studio 2.6.21-1-multimedia-486 i believe. My idea is to tinker with my develop installion finding some exact and few step to success I then do on the performance installation. And of cause report them back into this thread. PS: not sure if my laptop can have a pci card installed. I guess i have to check it out.

issues

  • Quentin Harley
  • 05/24/07
  • Thu, 02/12/2009 - 15:26
1) There is another aspect to your problem... The GPU is no doubt sharing some system RAM. This is not an issue when you are running a standard kernel, but the moment you are running RT kernels the CPU and GPU are fighting each other for RAM bandwidth... not good. I experience the same with an onboard nvidia GPU on my desktop system. I got a cheap PCIe card and my problems went away In your case the new kernel might solve some of the issues: Try installing the 2.6.26 kernel. 2) Don't worry about it. As long as you don't try to get anything major done with it using Jack it should not steal your resources, or mar the experience.

more...

  • mcskelle
  • 04/17/08
  • Thu, 02/12/2009 - 14:16
A typical Xrun message when moving a window or working in renoise look like this: **** alsa_pcm: xrun of at least 0.241 msecs Hope it if it helps....