[PlanetCCRMA] GUI Issues with Dell Vostro

Fernando Lopez-Lezcano nando at ccrma.Stanford.EDU
Sun Mar 25 10:20:26 PDT 2012

On 03/25/2012 02:35 PM, Peter Adamson wrote:
> Jeff,
> If I understand correctly, one person recording one track at a time does
> not need to be concerned with latency, so I just don't need the
> low-latency kernel?
> If I lay a midi drum track and then record the bass while listening,
> won't latency be an issue?

No, it shouldn't. I presume you will use Ardour, it compensates for 
that. So, if 2x1024 works reliably for you with the normal kernel you 
should be fine.

-- Fernando

>> Peter,
>> It is probably not the graphics hardware with the intel chipset.
>> fedora 14 is past end of life, you should install fedora 15 or 16 instead,
>> this might fix your problem.
>> If you are just recording you don't need really low latency.
>> Same for playing back MIDI files, low latency is not necessary.
>> However if you are playing a MIDI keyboard into a soft-synth, you
>> may want a latency proportional to your keyboard skills.  Same
>> thing for recording using effects in real time, you want the latency
>> in proportion with your ability to react.
>> For recording with Audacity or playing back MIDI files with Timidity
>> the standard kernel with 1024x3 (bytesxbuffers JACK setting) plays
>> with no xruns on my equivalent laptop and is adequate for my piano
>> skills using a MIDI keyboard and a Bristol synth.
>> -- Jeff
>>      From: Peter Adamson
>>      Subject: [PlanetCCRMA] GUI Issues with Dell Vostro
>>      I have just installed FC14 with the low latency kernel on a Dell
>>      Vostro
>>      1710.
>>      The GUI freezes after anywhere from 10 minutes to a few hours. This
>>      usually happens when a dialogue box or application window opens.
>>      Occasionally it happens when clicking a button.
>>      The mouse moves around the screen ok but the GUI does not respond to
>>      clicks or keystrokes. No way to get into a console to see what's going
>>      on, so a hard reboot is the only solution.
>>      It does not appear to happen with the unmodified kernel.
>>      I have tried using KDE instead of Gnome but the problem is
>>      actually worse.
>>      Questions:
>>      Are there any ideas about what is causing this and what might be a
>>      workaround?
>>      What information would be useful to post here? (hardware? which log
>>      files?...)
>>      I have tried recording with the basic kernel. Latency seems to be
>>      exactly the same as with the modified kernel. However midi playback is
>>      not as smooth (clicks at start/end of midi segments).
>>      Cheers,
>>      Peter

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