Eu encontrei este aqui :
sudo add-apt-repository ppa:lekensteyn/wacom-tablet
sudo apt-get update
sudo apt-get install dkms wacom-dkms
Diga-me se funcionou para você.
Eu comprei recentemente um Wacom Bamboo Splash e não consigo trabalhar em 12.04. A saída do lsusb é a seguinte:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 064e:d104 Suyin Corp.
Bus 005 Device 006: ID 1410:6002 Novatel Wireless
Bus 006 Device 002: ID 056a:00dd Wacom Co., Ltd