Ok, I got halfway there. Thank you all for your responsiveness.
- using the usbhid.quirks trick did not change anything. This trick used to work in 14.10. It does not appear to work in 15.04
- updating kernel to 4 made my pad work. I used the following method to upgrade
Now only the stylus input work. The finger input does not, neither the bottom button. Adding the MatchIsTablet "on"
did not solve this.
edit: when I run dmesg | grep -i wacom
here is what I get
[ 1.457401] usb 1-2: Manufacturer: Wacom Co.,Ltd.
[ 2.813078] input: Wacom HID Pen as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.0/0003:056A:0318.0006/input/input13
[ 2.813174] wacom 0003:056A:0318.0006: hidraw1: USB HID v1.10 Device [Wacom Co.,Ltd. Bamboo Pad, USB] on usb-0000:00:14.0-2/input0
[ 2.813304] input: Wacom HID Pen as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.1/0003:056A:0318.0007/input/input15
[ 2.813393] wacom 0003:056A:0318.0007: hidraw2: USB HID v1.10 Device [Wacom Co.,Ltd. Bamboo Pad, USB] on usb-0000:00:14.0-2/input1
[ 2.813545] input: Wacom HID Pen as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.2/0003:056A:0318.0008/input/input17
[ 2.813602] wacom 0003:056A:0318.0008: hidraw3: USB HID v1.10 Mouse [Wacom Co.,Ltd. Bamboo Pad, USB] on usb-0000:00:14.0-2/input2
So a mouse is detected, additionally to two pens. How do I configure it to work?