I'm also having this issue, on a Lenovo Thinkpad T450S. One thing I notice is that the touchpad doesn't completely disable when I click. Rather, the speed seems to be turned right down.
Also, click and drag works fine if I click using the hard button above the touchpad, but that's not really desirable, as it turns it into a two-handed operation. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to unity-greeter in Ubuntu. https://bugs.launchpad.net/bugs/1763209 Title: Cannot click and drag on trackpad Status in unity-greeter package in Ubuntu: Confirmed Bug description: I was previously using Ubuntu 17.10, but just upgraded to 18.04 today. After upgrading, I found that I could no longer click and drag using my trackpad, so I've been unable to drag files anywhere or highlight text without using an external mouse. This is on Dell XPS 13 L321X. Whenever I try to click and drag, the mouse just stops moving wherever it was, and I cannot move the mouse until I click again. External USB mouse seems to work perfectly fine. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1763209/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
