[Bug 1990357] Re: ch340 USB/serial - brltty interference

[Matěj Pavel]

apport information

** Tags added: apport-collected third-party-packages vanessa

** Description changed:

  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.
+ The CH340 is a very common USB/serial converter chip used in cheap 3D printers and microcontroller development boards.
+ --- 
+ ProblemType: Bug
+ ApportVersion: 2.20.11-0ubuntu82.1
+ Architecture: amd64
+ CasperMD5json: {
+ CurrentDesktop: X-Cinnamon
+ DistroRelease: Linux Mint 21
+ InstallationDate: Installed on 2022-09-20 (0 days ago)
+ InstallationMedia: Linux Mint 21 "Vanessa" - Release amd64 20220726
+ NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
+ Package: brltty 6.4-4ubuntu3 [origin: Ubuntu]
+ PackageArchitecture: amd64
+ ProcVersionSignature: Ubuntu 5.15.0-48.54-generic 5.15.53
+ Tags: third-party-packages vanessa
+ Uname: Linux 5.15.0-48-generic x86_64
+ UnreportableReason: This does not seem to be an official Linux package. Please retry after updating the indexes of available packages, if that does not work then remove related third party packages and try again.
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups: adm cdrom dialout dip input lpadmin plugdev sambashare sudo
+ _MarkForUpload: True

** Attachment added: "Dependencies.txt"
   https://bugs.launchpad.net/bugs/1990357/+attachment/5617642/+files/Dependencies.txt

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Title:
  ch340 USB/serial - brltty interference

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