Under UBUNTU 22.04.1 brltty PREVENTED me from using a USB->serial converter to access a remote piece of equipment. Once uninstalled, I had full access to the remote device.
Under LINUX MINT 21, you cannot uninstall brltty, and it did --NOT-- create a problem with the remote device, other than a name change to the port. Under UBUNTU 22.04.1, the port is named /dev/ttyUSB0 Under Linux Mint 21, the port is named /dev/ttyS0 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to brltty in Ubuntu. https://bugs.launchpad.net/bugs/1990357 Title: ch340 USB/serial - brltty interference Status in brltty package in Ubuntu: Confirmed 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. --- 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/1990357/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
