diagnostic tools to trace the reason xruns are happening?

[Mike Holstein]

On Sun, Jun 5, 2011 at 12:02 PM, bart deruyter <bart.deruyter at gmail.com>wrote:

> Hey, thanks for the script.. the kernel is built, and I've booted using it,
> but I didn't test it yet. The nvidia driver does not work, but if I could
> set my screen resolution correctly, that would be enough for me. I then
> could switch between kernels for audio and graphic, 3D work. I hope I won't
> have to re-enable the nvidia driver each time I boot into the generic
> kernel, and disable it again when I boot into the realtime kernel.
>
> The resolution of my screen is not listed in the tool provided for
> modifying the resolution. It should be 1680 x 1050 at 109 Hz, but it's
> limited to 1400 x 1050 at 56 Hz.
>
> Ralf, you mentioned the 2.6.39 kernel. You meant the real time features
> will be included in this generic kernel? That would be wonderfull, no need
> to have specialised kernels for it anymore, and with nvidia driver
> capabilities :-D. I hope will be released in a repository soon.
>
> Grtz,
> Bart
>
> http://www.bartart3d.be/


bart,

the kernel i use from the KXstudio ppa works with my nvidia hardware and the
proprietary driver. i use kernel-realtime from the
https://launchpad.net/~kxstudio-team/+archive/kernel PPA. again, i cant say
how this will work with your graphics hardware, but in ubuntu 10.04 with my
presonus firepod firewire device i can run stable at around 5ms latency.
*this is with no xruns.


>
>
> 2011/6/5 Ralf Mardorf <ralf.mardorf at alice-dsl.net>
>
>> On Sun, 2011-06-05 at 13:25 +0200, bart deruyter wrote:
>> > My system now is this :
>> > 2.6.38-8-lowlatency #42+all1~natty1-Ubuntu SMP PREEMPT Fri Apr 29
>> > 03:22:51 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
>> >
>> > It already says PREEMPT aparently, but no rt.
>> >
>> > thanks for looking into this, might make life much easier :-).
>>
>> You can edit the script. It (nearly) only does, what you usually need to
>> type manually in a terminal emulation.
>>
>> When the script runs 'make oldconfig' you perhaps only need to push
>> enter for every question, but it would be better to read the output and
>> if there should be something asked regarding to real-time, to answer
>> carefully.
>>
>> The script is attached and reedited to fit to your setup, hence it's not
>> tested for your setup, but it should work.
>>
>> Run
>>
>> sudo sh rt4us-natty
>>
>> Hth,
>>
>> Ralf
>>
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>
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-- 
MH

http://opensourcemusician.libsyn.com/
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