Further to comment #70, I'm attaching the output of the alps-reg-dump program from the site referred by comment #56 for my Dell Latitude E6420. I just ran the program for a while, and killed it after it had just produced 0s for a while. I hope it's helpful. I'm happy to run other tests or try other experiments if it will help.
** Attachment added: "latitude-e6420-alps-reg-dump.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/737051/+attachment/2640964/+files/latitude-e6420-alps-reg-dump.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/737051 Title: [regression] Alps touchpad detected, but scrolling not working To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/737051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
