<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<p>Hi Christoph and list, reporting back: It seems the problems,
particularly on the laptop, are related to Ubuntu. Last night I
made a live USB stick of AV Linux. Booting from this both solves
the problem of the USB ports and produces glitch free audio (thus
far). I got ins and outs working with Pd + jack with frames/period
set to 64, sample rate 48hHz, and periods/buffer 3. Latency of
4msec, so I'm happy with that (Pd gave segmentation faults on
startup at lower frame rates). The Pd test (playing a tone and
monitoring mic input) did much better than it did on Windows
(portaudio/asio) where I still heard occasional glitches (don't
remember the latency value).</p>
<p>Christoph and others using the Scarlett, what Linux distributions
are you using?</p>
<p>>Is is USB Class compliant or does it come with specific
hardware features?<br>
>If it does, maybe you can switch from "special" to "compliant"
mode?</p>
<p>I believe it is class compliant except for configuration
process. How would one "switch from special to compliant"?</p>
<p>I've heard of people having success using Wine to run Focusrite
Control, so I'll try this too.<br>
</p>
<p>All the best,</p>
<p>Iain</p>
<p><br>
</p>
<div class="moz-cite-prefix">Em 31/01/2020 04:10, Christoph Kuhr
escreveu:<br>
</div>
<blockquote type="cite"
cite="mid:trinity-c94edd54-1124-4172-b681-6b2061e2758e-1580454616148@msvc-mesg-web104">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<div class="mail_android_message" style="line-height: 1; padding:
0.5em">Hi Iain,<br>
<br>
no, I don't have a gen3. <br>
Is is USB Class compliant or does it come with specific hardware
features?<br>
<br>
<br>
<br>
This worked for my RME babyface pro though.<br>
<br>
Hope this helps...<br>
<br>
Best<br>
Ck<br>
-- <br>
Diese Nachricht wurde von meinem Android Mobiltelefon mit <a
href="http://WEB.DE" moz-do-not-send="true">WEB.DE</a> Mail
gesendet.</div>
<div class="mail_android_quote" style="line-height: 1; padding:
0.3em">Am 30.01.20, 11:47 schrieb Iain Mott
<a class="moz-txt-link-rfc2396E" href="mailto:mott@escuta.org"><mott@escuta.org></a>:
<blockquote class="gmail_quote" style="margin: 0.8ex 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">
<p>Hi Christoph, I don't doubt for a minute that I'm doing
something silly, but do you mean the monitor and headphone
gain knobs on the front? Yes, they're both up. When I switch
directly to windows, everything is working: pd (ASIO driver
"via portaudio"), SuperCollider, Ardour, etc., but in Linux,
silence....</p>
<p>You have a 3rd gen interface? <br>
</p>
<p>Cheers,</p>
<p>Iain<br>
</p>
<div class="moz-cite-prefix"> Em 30/01/2020 07:26, Christoph
Kuhr escreveu: <br>
</div>
<blockquote>
<div class="mail_android_message" style="line-height: 1;
padding: 0.5em"> Hi Iain, <br>
<br>
did you turn up the hardware volume? <br>
I had this problem. Someone truly evil turned it down,
while I wasn't watching... ;-) <br>
<br>
BR, <br>
Ck <br>
<br>
-- <br>
Diese Nachricht wurde von meinem Android Mobiltelefon mit
<a href="http://WEB.DE" moz-do-not-send="true">WEB.DE</a>
Mail gesendet. </div>
<div class="mail_android_quote" style="line-height: 1;
padding: 0.3em"> Am 30.01.20, 10:24 schrieb Iain Mott <a
class="moz-txt-link-rfc2396E"
href="mailto:mott@escuta.org" moz-do-not-send="true"><mott@escuta.org></a>:
<blockquote class="gmail_quote" style="margin: 0.8ex 0pt
0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;"> Dear Linux audio people, <br>
<br>
I have a Scarlett 18i20 3rd Gen interface which I'm
trying to use on a <br>
recent Samsung laptop with Ubuntu 19.04. <br>
<br>
The 3rd gen devices are apparently shipped in
non-functional "MSD" mode, <br>
so I registered and activated the device using Windows
10 following the <br>
instructions on the Focusrite website. Tested it there
with Ableton Live <br>
Lite (provided via registration of the device) and also
Ardour. It works <br>
fine. To get it to work on Ardour it was necessary to
use the ASIO <br>
driver in the Ardour audio configuration. I had removed
ASIO4ALL before <br>
installing the Focusrite/Scarlett software as suggested,
so perhaps this <br>
driver came with Focusrite install. <br>
<br>
Now with the device apparently configured and the
routing done in <br>
Windows using the Focusrite Control software (i thinks
that's the name, <br>
I had selected output channels 1 and 2 to connect with
the <br>
monitors/headphone jack), I returned to Linux. The
Scarlett device is <br>
detected by lsusb, qjackctl and pavucontrol. Jack runs
with no errors <br>
when the Scarlett is selected as the i/o device and all
the correct <br>
channels appear in the Connect window. No sound however
is heard through <br>
the phone jack, nor if i plug the phones directly in to
the output jacks <br>
at the back. I tested using VLC configured for Jack
output and also with <br>
pd -jack. <br>
<br>
With jack turned off and with VLC audio out set to
pulsaudio, I set the <br>
Scarlett 18i20 as the preferred device in pavucontrol.
With VLC playing <br>
the output VU meter for the Scarlett is active in
pavucontrol but there <br>
is still no sound coming out of the device itself. <br>
<br>
Has anyone managed to get a 3rd generation Scarlett to
work on Linux? <br>
Can anyone suggest please what I can do? <br>
<br>
Thanks! <br>
<br>
Iain <br>
<br>
PS. i did see an unresolved thread on this list last
year about a 3rd <br>
gen Scarlett. I'll send a message to the author to see
if the problem <br>
was fixed. <br>
_______________________________________________ <br>
Linux-audio-user mailing list <br>
<a class="moz-txt-link-abbreviated"
href="mailto:Linux-audio-user@lists.linuxaudio.org"
moz-do-not-send="true">Linux-audio-user@lists.linuxaudio.org</a>
<br>
<a
href="https://lists.linuxaudio.org/listinfo/linux-audio-user"
moz-do-not-send="true">https://lists.linuxaudio.org/listinfo/linux-audio-user</a>
<br>
</blockquote>
</div>
</blockquote>
</blockquote>
</div>
</blockquote>
</body>
</html>