Generic i2c screen
Install these files:
sudo apt-get update sudo apt-get install python-smbus i2c-tools
If not allready, add this line to the end :
Depending on your distribution, you may also have a file called /etc/modprobe.d/raspi-blacklist.conf. Make sure the above 2 files in not blacklisted.
Your Pi has to see the device. Check this by:
ls -l /dev/i2c-1 sudo i2cdetect -y 1