Re: options for hard real time kernel for raring 13.04

Nicola <nicola.di.marzo@xxxxxxxxxxx> · Wed, 11 Sep 2013 11:17:58 +0100



    On 11/09/13 10:50, Raffaele Morelli
      wrote:

    
      2013/9/11 Marco Donnarumma <devel@xxxxxxxxxxxx>

        
                      Hey all,

                        
                      I just switched to Mint Olivia 15 (based on Ubuntu
                      Raring 13.04). I use quite cpu-intensive puredata
                      patches with processing of 2 live audio inputs on
                      a firewire soundcard through ffado and qjackctl
                      (jack2).

                    
                  Although my machine runs a low-latency kernel and it
                  has been configured for pro audio (I use the
                  realtimeConfigurationScan script), I still get xruns
                  and sometimes qjackctl randomly hangs up making the
                  sound to stop completely.

                  
                  Before, I used to work with ubuntu 10.04 and rt-kernel
                  without a itch. Is anybody still using a rt-kernel
                  with the latest Mint or Ubuntu, or just refining
                  settings etc..?

                  
                if a rt-kernel is the best option, should I patch
                  mine, since it looks like there are no packaged
                  rt-kernels for Raring? 

                  Can't access Abogani ppa, and KXS kernels are
                  available up to Precise.

                  
                thanks in advance for any hint, or suggestions
                  about what to try!

                
                best wishes
              
            
    Hi Marco,

    
    I recompiled a real time kernel for 13.04 following the system
    configuration guide (in this case the italian translation that
    reports "3.2.35-rt52").

    http://linuxaudio.it/index.php/Configurazione_di_sistemi_audio_GNU/Linux#Compilare_il_tuo_real-time_kernel

    
    I'm using an hp pavilion 6 laptop with the ua-25 ex soundcard and
    with this particular real time Kernel everything works fine.

    1 xrun discovered at 5,8 ms latency in 3 hours session, recording
    and mixing with Ardour.

    
    Best regards

    Nicola

    
            compiling a RT kernel is quite straightforward, BTW you
              can install a debian rt kernel: http://packages.debian.org/jessie/linux-image-rt-amd64
            

            /r
          
          
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