5 Oct
2022
5 Oct
'22
12:32 p.m.
Hello all,
A friend of mine, who is mainly a Windows user and has limited knowledge of
Linux, has two HP laptops running Archlinux.
One of them works perfectly with an RME Octamic-XTC. The other doesn't
seem to detect it as a sound card (it doesn't show up in aplay -l).
On both the RME is recognised as an USB device (by lsusb).
I'm trying to help him fix this (remotely). We compared kernel and alsa
versions, they are the same. In fact the two Linux installations should
be identical, both had a full update before I shipped to two laptops
to him.
What could be the problem on the second PC ?
TIA,
--
FA
5 Oct
5 Oct
12:43 p.m.
Hi Fons,
possibly the USB hardware in the two laptops is different. Since lsusb
picks the device up the next step would maybe to check if udev is
creating the right device nodes.
Try running
sudo udevadm monitor
on both devices and see if there are significant differences..
Kind regards,
FPS
On 10/5/2022 10:32 AM, Fons Adriaensen wrote:
Hello all,
A friend of mine, who is mainly a Windows user and has limited knowledge of
Linux, has two HP laptops running Archlinux.
One of them works perfectly with an RME Octamic-XTC. The other doesn't
seem to detect it as a sound card (it doesn't show up in aplay -l).
On both the RME is recognised as an USB device (by lsusb).
I'm trying to help him fix this (remotely). We compared kernel and alsa
versions, they are the same. In fact the two Linux installations should
be identical, both had a full update before I shipped to two laptops
to him.
What could be the problem on the second PC ?
TIA,
--
https://dfdx.eu
12:47 p.m.
Oops, small addendum below...
On 10/5/2022 10:43 AM, Florian Paul Schmidt wrote:
Hi Fons,
possibly the USB hardware in the two laptops is different. Since lsusb
picks the device up the next step would maybe to check if udev is
creating the right device nodes.
Try running
sudo udevadm monitor
and then plug in the device of course ;)
on both devices and see if there are significant differences..
--
https://dfdx.eu
6 Oct
6 Oct
6:21 a.m.
On 10/5/22 04:09, Chris Caudle wrote:
On Oct 5, 2022 3:32 AM, Fons Adriaensen
<fons(a)linuxaudio.org> wrote:
One of them works perfectly with an RME Octamic-XTC. The other doesn't
Maybe setup mode is different between the two interfaces. I see that
Octamic-XTC supports MADI, perhaps there is a way to get the interface
set so it only uses MADI and ignores USB.
-- Chris Caudle
Another possibility: Despite them being the same model computers, HP
might have used a different hardware component in one than it used in
the other? I've heard of manufacturers changing components such as drive
models, host controllers, and networking hardware during assembly runs.
I'm sure because they could get the new component cheaper!
--
David W. Jones
gnome(a)hawaii.rr.com
authenticity, honesty, community
http://dancingtreefrog.com
"My password is the last 8 digits of π."
5 Oct
5 Oct
6:51 p.m.
On 2022-10-05 10:32, Fons Adriaensen wrote:
Hello all,
A friend of mine, who is mainly a Windows user and has limited knowledge of
Linux, has two HP laptops running Archlinux.
One of them works perfectly with an RME Octamic-XTC. The other doesn't
seem to detect it as a sound card (it doesn't show up in aplay -l).
On both the RME is recognised as an USB device (by lsusb).
I'm trying to help him fix this (remotely). We compared kernel and alsa
versions, they are the same. In fact the two Linux installations should
be identical, both had a full update before I shipped to two laptops
to him.
What could be the problem on the second PC ?
I have an HP Z2 Tower G4 Workstation for my music and a Soundcraft Signature 12
MTK as my main interface. Oddly enough, I had almost the same problem when I
switched workstation from Dell to HP in early 2020. The first time I installed
my distro (ubuntustudio), MTK was not recognized. I tested with lsusb and there
was the interface but not in alsa -l. I stumbled on the thread below and tried
with qjackctl and then it worked. No idea why that happened. After a power
outage a few months ago, the same thing happened. I did the same thing and ran
qjackctl and then it works again, both restarting and pulling out and in the
interface. Inexplicable but maybe a workaround.
https://linuxmusicians.com/viewtopic.php?t=18080
--
/bengan
7:11 p.m.
Bengt Gördén <bengan(a)bag.org> writes:
On 2022-10-05 10:32, Fons Adriaensen wrote:
I have a Teufel Bamster soundbar (not the Bluetooth version) and it
won't get recognized if the snd-usb-audio module is already loaded. In
that case, you need to rmmod the module, then plug in the soundbar, then
load the module again. Before I figured that out, I had to reboot once
the bar was plugged out.
Maybe compare your lsmod outputs before and after plugging in the
soundcard (and it working or not) on the respective laptops, just in
case some module being loaded or not messes with the recognition.
--
David Kastrup
Hello all,
A friend of mine, who is mainly a Windows user and has limited
knowledge of
Linux, has two HP laptops running Archlinux.
One of them works perfectly with an RME Octamic-XTC. The other
doesn't
seem to detect it as a sound card (it doesn't show up in aplay -l).
On both the RME is recognised as an USB device (by lsusb).
I'm trying to help him fix this (remotely). We compared kernel and
alsa
versions, they are the same. In fact the two Linux installations should
be identical, both had a full update before I shipped to two laptops
to him.
What could be the problem on the second PC ?
I have an HP Z2 Tower G4 Workstation for my music and a Soundcraft
Signature 12 MTK as my main interface. Oddly enough, I had almost the
same problem when I switched workstation from Dell to HP in early
2020. The first time I installed my distro (ubuntustudio), MTK was not
recognized. I tested with lsusb and there was the interface but not in
alsa -l. I stumbled on the thread below and tried with qjackctl and
then it worked. No idea why that happened. After a power outage a few
months ago, the same thing happened. I did the same thing and ran
qjackctl and then it works again, both restarting and pulling out and
in the interface. Inexplicable but maybe a workaround.
https://linuxmusicians.com/viewtopic.php?t=18080 
8:20 p.m.
I've found some USB soundcards don't like being plugged into USB3 ports - no idea
why.
--
Will J Godfrey {apparently now an 'elderly'}
https://willgodfrey.bandcamp.com/
http://yoshimi.github.io
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.
6 Oct
6 Oct
6:09 a.m.
On 10/5/22 06:19, Will Godfrey wrote:
I've found some USB soundcards don't like
being plugged into USB3 ports - no idea why.
Not directly related, but years ago, I had a Canon USB scanner that
worked happily on USB2 but never appeared when connected to a "USB2"
port controlled by a USB3 host controller.
My cheap USB sound card has happily moved from USB2 to USB3 without issues.
--
David W. Jones
gnome(a)hawaii.rr.com
authenticity, honesty, community
http://dancingtreefrog.com
"My password is the last 8 digits of π."
714
days inactive
715
days old
linux-audio-user@lists.linuxaudio.org
8 comments
7 participants
participants (7)
-
Bengt Gördén -
Chris Caudle -
david -
David Kastrup -
Florian Paul Schmidt -
Fons Adriaensen -
Will Godfrey