Because the hardware has some problem that it will miss some packs of the touchpad events randomly. It will cause some unpredictable results, but Seth's commit just avoid some situation that will cause the abnormal behavior under the condition of comment #4.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1456881 Title: Some touchpads' right button doesn't work under I2C mode, need support of clickpads Status in HWE Next Project: In Progress Status in linux package in Ubuntu: In Progress Status in linux source package in Trusty: Fix Committed Status in linux source package in Utopic: Fix Committed Bug description: We need to add this support, otherwise some touchpads' right button doesn't work under I2C mode. commit 015fdaa9f8edd89a456b3331088e1b77ebdad9d0 (patch) HID: multitouch: add support of clickpads Touchpads that have only one button are called clickpads and should be advertised as such by the kernel. Signed-off-by: Benjamin Tissoires <benjamin.tissoi...@redhat.com> Tested-by: Jason Ekstrand <ja...@jlekstrand.net> Signed-off-by: Jiri Kosina <jkos...@suse.cz> To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1456881/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp