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I've just installed 15.04 on a Lenovo Yoga 3 laptop.

Everything seems to work great out of the box except for the trackpad. The pointer is OK and left-clicks and single taps are registered, however two finger taps and two finger scrolling are not recognised. Going into the trackpad settings doesn't list two-finger taps as a selectable option. How can I enable this functionality?

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This is a known issue with recent Lenovo models. The word is that the trackpad works with full functionality if you use kernel 4.0, but using 3.19 (the 15.04 kernel) requires some ad hoc workarounds. Here's a thread you might find helpful: http://www.reddit.com/r/thinkpad/comments/33gkqq/t450s_can_confirm_that_linux_kernel_4_fixes/

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  • I have installed and am now running the 4.0 kernel (checked with uname -r) but I don't see any difference. Any other ideas? It's very frustrating. Apr 23, 2015 at 22:50
  • I'm afraid I don't know any more. Try posting on the reddit thinkpad page that I linked to. The guys over there know thinkpads inside and out. Apr 23, 2015 at 22:59

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