Known Issues

  • Ubuntu Issue

    • Ubuntu requires fixing a bug to be able to connect to any GQ GMC device. USB devices use VID (vendor ID) and PID (Divice ID)… It is common for unrelated devices to use a common manufacture for their USB interface. The issue with Ubuntu is that it assumes 1A86:7523 is a “Braille” device (for the blind) and, ironically, blindly treats it as such.

    • This causes the GQ GMC device to not connect.

  • Ubuntu fix

    • The fix is to comment out the udev rule that does this. The text file may be in two places.

      • /usr/lib/udev/85-brltty.rules

      • /usr/lib/udev/rules.d/85-brltty.rules

    • Find the line below and comment it out.

      • ENV{PRODUCT}=="1a86/7523/*", ENV{BRLTTY_BRAILLE_DRIVER}="bm", GOTO="brltty_usb_run"

    • We see Ubuntu assumes 1A86:7523 is a Baum [NLS eReader Zoomax (20 cells)] device.