[LAU] Help with configuring a laptop for Linux Audio work

[Jeremy Jongepier]

On 05/12/2014 10:02 AM, Louigi Verona wrote:
> Harry,
> 
> "And hyperthreading (usually a bios setting)?"
> 
> Will try to turn it off.
> 

Hi Louigi,

With the JACK settings you're using this probably won't make a
difference. If you go really low latency-wise you might run into issues.

> 
> "Personal experience with an Acer tm 5720, even setting to powersave
> governed makes xruns / fallouts go away."
> 
> are you suggesting that at powersave mode things are actually better? Why?
> I just tried doing this, xruns continue to be generated.
> 

Disabling scaling, so setting a governor that doesn't change the CPU
freq, should yield better results, no matter which governor this is.

> 
> Lorenzo,
> 
> "Did this include turning CPU Scaling off and setting _all cores_ to
> "performance"?"
> 
> Yep.
> 
> "Also switching off (internal) wifi improves the situation here."
> 
> How do you switch it off?

There should be a radio button on your keyboard linked to a Fn key to
disable WiFi. Otherwise you could try unloading the kernel modules
loaded by the WiFi interface or even unbinding them. But I don't think
this is your issue either. Could you pastebin the output of some commands?

cat /proc/interrupts
sudo lspci -v
sudo lsusb -v
cat /etc/default/rtirq
uname -a

Thanks!

Jeremy

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