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Download the BIOS update bootable CD image from lenovo's website. I downloaded version 2.33-1.16 and the file name was
giuj20us.iso
If the link I copied above is broken, try googling for
BIOS Update Bootable CD x240 site:lenovo.com
With ubuntu 15.10, full clickpad support is provided by xserver-xorg-input-libinput. No further configuration needed. Tested with a T440s. (According to this)
lsusb
lists the fingerprint reader in the x240 as follows:
Bus 002 Device 003: ID 138a:0017 Validity Sensors, Inc.
There exists experimental driver support for this in a fork of libfprint for vfs5011 sensors, however you'll need to compile the driver yourself. To get the fingerprint sensor to work for lightdm login, su etc, follow these steps.
- Install fingerprint-gui: