According to the error log of #7, looks like the usb device driver (ch341.ko) is not loaded yet, the error happens ahead of ch341 driver is called.
So in theory, the driver of "https://sparks.gogo.co.nz/assets/_site_/downloads/CH340_LINUX.zip" will not help. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1915661 Title: WDH - CH340G USB UART not supported by ch341 driver in all chip revisions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1915661/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs