I want to use my old Genius MousePen 8x6 graphics tablet with my notebook running Debian stretch (testing) amd64 and Gnome 3.20. The tablet was already working before I reseted the OS, now it isn't. The tablet LED flashes if I touch it with the pen, but the coursor doesnt move and no clicks are recognized. (even in libinput-debug-events)~ % lsusbBus 002 Device 009: ID 5543:0005 UC-Logic Technology Corp. Tablet WP8060U(lsusb -v here: http://nopaste.linux-dev.org/?1119974).  ~ % xinput list   Virtual core pointer                      id=2    [master pointer  (3)]    Virtual core XTEST pointer                id=4    [slave  pointer  (2)]    RAPOO RAPOO 5G Wireless Device            id=11   [slave  pointer  (2)]    SynPS/2 Synaptics TouchPad                id=14   [slave  pointer  (2)]    UC-LOGIC Tablet WP8060U Mouse             id=9    [slave  pointer  (2)] Virtual core keyboard                     id=3    [master keyboard (2)][...]Usually the tablet is shown up here as two devices: UC-LOGIC Tablet WP8060U Mouse and UC-LOGIC Tablet WP8060U Pen. The first device is for the optional mouse (I dont own it, so I cant try), the second one for the pen, which is not working.What I also found (and what I think is most important):% sudo libinput-ist-devices libinput error: libinput bug: Device 'UC-LOGIC Tablet WP8060U Pen' does not meet tablet criteria. Ignoring this device.[...]Device:           UC-LOGIC Tablet WP8060U MouseKernel:           /dev/input/event15Group:            4Seat:             seat0, defaultCapabilities:     pointer Tap-to-click:     n/aTap-and-drag:     n/aTap drag lock:    n/aLeft-handed:      disabledNat.scrolling:    disabledMiddle emulation: disabledCalibration:      n/aScroll methods:   buttonClick methods:    noneDisable-w-typing: n/aAccel profiles:   flat *adaptiveRotation:         n/aI booted a live Lubuntu 16.04, there worked the tablet without problems, in xinput list and libinput-list-devices were both devices shown.So, what can I do to fix this?
Genius Graphics tablet (WP8060U) not working on Debian
debian;input;tablet;libinput
I don't have a fix but after half a day of frustration I think I have a work-around for you if you are using Debian 8 (Stretch).I had exactly the same symptoms:UC-LOGIC Tablet WP8060U Mouse and Pen both working under (K)ubuntu, then after a disasterous upgrade to the latest LTS, the pen device disappeared after switching to Debian 8 (using xserver-xorg 1:7.7+18).libinput writes a message to /var/log/Xorg.0.log saying that it can't handle the pen device because of an internal bug.Installation of xserver-xorg-input-evdev looks like a good option because it reports catching the pen device, but shortly afterwards libinput attempts to hook onto it, suffers from the internal error, and disables the device.My workaround was to:Install xserver-xorg-input-evdevPut the following stanza in /etc/X11/xorg.conf (this is actually my xorg.conf in its entirety):    Section InputClass       Identifier evdev tablet catchall       MatchIsTablet on       MatchDevicePath /dev/input/event*       Driver evdev    EndSectionThis clearly is a libinput bug: it is even logged as such to the log file. Hopefully somebody will fix it one day and then the tablet pen will Just Work (TM).Hope this helps.