Public bug reported:
the CH340 does show up in lsusb:
'Bus 001 Device 005: ID 1a86:7523 QinHeng Electronics CH340 serial converter'
but does not show up in /dev if brltty is installed on the system.
Device does show up as /dev/ttyUSB0 after removing brltty and rebooting.
tested systems:
Ubuntu 22.04.1 (live USB) - problem present
Linux Mint 21 (fresh install, updated) - problem present
ubuntu-bug does not recognise brltty as an ubuntu package and thus
refuses to collect data.
The CH340 is a very common USB/serial converter chip used in cheap 3D
printers and microcontroller development boards.
** Affects: brltty (Ubuntu)
Importance: Undecided
Status: New
** Tags: jammy
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https://bugs.launchpad.net/bugs/1990357
Title:
ch340 USB/serial - brltty interference
Status in brltty package in Ubuntu:
New
Bug description:
the CH340 does show up in lsusb:
'Bus 001 Device 005: ID 1a86:7523 QinHeng Electronics CH340 serial converter'
but does not show up in /dev if brltty is installed on the system.
Device does show up as /dev/ttyUSB0 after removing brltty and
rebooting.
tested systems:
Ubuntu 22.04.1 (live USB) - problem present
Linux Mint 21 (fresh install, updated) - problem present
ubuntu-bug does not recognise brltty as an ubuntu package and thus
refuses to collect data.
The CH340 is a very common USB/serial converter chip used in cheap 3D
printers and microcontroller development boards.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/1990357/+subscriptions
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