Thanks. OK passing it over to the kernel team. It seems the kernel disables the USB device just after brltty tries to use it. See the last line in the log clipping below:
Feb 1 10:50:00 laptop brltty[5861]: starting. Feb 1 10:50:00 laptop brltty[5861]: BRLTTY 3.7.2 Feb 1 10:50:00 laptop brltty[5878]: Linux Screen Driver Feb 1 10:50:00 laptop brltty[5878]: Creating directory: /etc/brltty/usbfs Feb 1 10:50:00 laptop brltty[5878]: Mounting USBFS: /etc/brltty/usbfs Feb 1 10:50:00 laptop kernel: [ 138.396000] usb 3-1: USB disconnect, address 3 ** Changed in: network-manager (Ubuntu) Sourcepackagename: network-manager => linux-source-2.6.10 Importance: High => Medium -- USB braille display no longer starts with brltty https://launchpad.net/bugs/80892 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs