[DIGImend-users] Issues with DKMS deb package upon Ubuntu upgrade

[Caleb L. <ca...@te...>]

So a friend recently acquired a Huion GT-190. Plugged it in, installed the
latest DIGImend DKMS deb package on Ubuntu 15.10, and it worked perfectly.
Later on, just recently upgraded to Ubuntu 16.04, and now the tablet does
not function whatsoever. It's plugged in and shows up under lsusb, but is
not listed under 'xinput --list'.

Next, I grabbed the graphics tablet and plugged it into another desktop,
with a fresh clean Ubuntu 16.04 installation (no upgrade), and installed
the DIGImend drivers, and it works perfectly fine on there.

I'm wondering if there's a packaging issue with the deb package, when
dealing with OS version upgrades, or if it's some bug in Canonical's work.

On the other desktop (that was upgraded from 15.10), I tried uninstalling
the package, restarting, reinstalling the package, restarting, and no
resulting difference. Also tried "Mark for complete removal" under Synaptic
for the 'digimend-dkms' package, and reinstalling after. I've also tried
rmmod to unload the kernel module (hid_uclogic), and insmod to manually
load the the module for the current kernel version, with no change.

On both computers, I can run lsmod and see hid_uclogic loaded.

When I run 'watch -n 0.5 xinput --list' on both computers, and plug in the
tablet, I get the results of:

    - On the upgraded 16.04 computer: "NUVOTON WPM USB" appears for a
second, then disappears. Nothing else comes up thereafter.
    - On the cleanly installed 16.04 computer: "NUVOTON WPM USB" appears
for a second, disappears, then the Tablet Monitor
Pen/Mouse/Consumer-Control items appear and stay.

If there's any further information required, then feel free to ask.