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"And hyperthreading (usually a bios setting)?"
Will try to turn it off.
"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.
"Did this include turning CPU Scaling off and setting _all cores_ to
"Also switching off (internal) wifi improves the situation here."
How do you switch it off?
On Mon, May 12, 2014 at 11:56 AM, Lorenzo Sutton
> Hi Louigi,
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Harry,"And hyperthreading (usu=
ally a bios setting)?"Will try to turn it off.<=
/div>"Personal experience with an Acer tm 5720, even sett=
ing to powersave governed makes xruns / fallouts go away."
are you suggesting that at powersave mode things are actually bet=
ter? Why? I just tried doing this, xruns continue to be generated.<=
br>Lorenzo,"Did this include turning CPU Scaling off and=
setting _all cores_ to "performance"?"
Yep."Also switching off (internal) wifi im=
proves the situation here."How do you switch it off=
On Mon, May 12, 2014 at 11:56 AM, Lorenz=
o Sutton <firstname.lastname@example.org> wrote:
On 12/05/2014 09:43, Louigi Verona wrote:
Recently I've bought a Lenovo IdeaPad B590 laptop. As it is announced a=
an Ubuntu-certified laptop
I am using Xubuntu 12.04 with kernel 3.8 now.
1. All real-time priorities and audio group and such standard stuff set
up, checked and rechecked by myself and other people at LAC.
*Problem 1. Xruns.*
Even if nothing is done on the computer and/or with audio, xruns are
generated. For instance, since I started writing this letter, JACK was
on and right now I have an indicator of xruns in qjackctl which says:
7(13). Note, no audio programs are open at all. If I do nothing, just
turn on JACK and leave laptop running, xruns are also generated.
You said you already check "standard stuff".. Did this include tu=
rning CPU Scaling off and setting _all cores_ to "performance"? I=
n my experience this always makes a very big difference in quantity of xrun=
s regardless of the sound card. Xubuntu doesn't have anything out of th=
e box for that so you'll either have to use cpufrequtils or if intreste=
d I've made a simple python-gtk front-end which sits in the tray for ma=
naging the task if you're interested...
Also switching off (internal) wifi improves the situation here.
*Problem 2. USB interruptions.*
This problem occurs when I am using USB soundcard or USB headset. I get
regular audible interruptions of audio signal. It has no bearing on
xruns and occurs even outside of JACK, just when I am listening to
Audacious, for example. I tried switching from PulseAudio to ALSA, same
result. I though do not remember checking this with YouTube videos, for
instance, and right now have no usb devices at hand to check.
I get the same problem with using the zoom H4 as a USB device and up to now=
found no solution. I recently got a zoom R8 and with that the issue doesn&=
#39;t seem to be present (although I haven't tested it much as USB devi=
ce...) so I assume it *might* be a device problem.
So.. good luck and do share relevant results, as I think some general '=
laptop' info might be interesting regardless of brands.
Linux-audio-user mailing list
-- Louigi Veronahttp://www.louigiverona.ru/