WelcomeWelcome | FAQFAQ | DownloadsDownloads | WikiWiki

Author Topic: USB Midi Devices  (Read 1164 times)

Offline DeepBlueMind

  • Newbie
  • *
  • Posts: 8
USB Midi Devices
« on: August 03, 2021, 12:39:50 AM »
Hello again,

I have two USB Midi devices connected via USB hub and when I do this command:

aconnect -l

they don't show up!

What do I miss?

Offline Juanito

  • Administrator
  • Hero Member
  • *****
  • Posts: 14546
Re: USB Midi Devices
« Reply #1 on: August 03, 2021, 01:11:35 AM »
If you disconnect and re-connect your usb devices and then "dmesg | tail -20", does your machine recognise that something has been connected?

Online patrikg

  • Wiki Author
  • Hero Member
  • *****
  • Posts: 673
Re: USB Midi Devices
« Reply #2 on: August 03, 2021, 06:57:38 AM »
You could try to install usbutils.tcz and then run lsusb to get more info about the devices.

Offline DeepBlueMind

  • Newbie
  • *
  • Posts: 8
Re: USB Midi Devices
« Reply #3 on: August 03, 2021, 07:20:34 AM »
a "aconnect -l" command gives me this:
Quote
client 0: 'System' [type=kernel]

    0 'Timer           '

    1 'Announce        '

client 14: 'Midi Through' [type=kernel]

    0 'Midi Through Port-0'


the lsusb command gives this:

Quote
Bus 001 Device 009: ID 1fc9:8260 NXP Semiconductors

Bus 001 Device 003: ID 045e:0752 Microsoft Corp. Wired Keyboard 400

Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


so the first device is being recognized but not the second USB Midi Device, but it is not shown on the "aconnect -l" command

Quote
If you disconnect and re-connect your usb devices and then "dmesg | tail -20", does your machine recognise that something has been connected?
Nothing changes only when I disconnect one USB Midi device and then "dmesg | tail -20" I got this:
[ 1226.933052] usb 1-1.3: USB disconnect, device number 11
and the same with the other one I got this:
[ 1368.249413] usb 1-1.2: USB disconnect, device number 8


« Last Edit: August 03, 2021, 07:29:46 AM by DeepBlueMind »