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Description of problem: After upgrade from kernel, kernel-core, kernel-modules 4.7.9 to 4.8.4, trackpad on ASUS ZenBook UX305CA (Intel® Core™ m3-6Y30) stops working after logging in. NOTE: This is strange: The trackpad works during GDM. The trackpad stops working after logging into X session. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1.upgrade kernel-modules to 4.8.4 2.move pointer using on trackpad (work) 3.login to gnome session (trackpad stops working) Actual results: Trackpad stops working after logging into gnome session Expected results: Trackpad keeps working after logging into gnone session Additional info: Downgrade kernel-modules solves problem
Just released Gnome shell update seems to have fixed the problem. Mouse pointer freezes for first few seconds after logging in but eventually works.
Reopening. The trackpad works 1 out of 5 time if you wait 5 - 25 seconds after loggin into a gnome session. It's almost like gnome is trying to sync with the trackpad driver. 4 out of 5 times the the trackpad does not work. Workaround is reverting back to old kernel, kernel-core, kernel-modules Weird thing is the logon screen (GDM) has no trackpad issue.
ISSUE * Still cannot get trackpad to function when first logging into gnome session with kernel 4.8.6-201.fc24.x86_64 or kernel 4.8.4 CAVEAT * May not strictly be a kernel problem (although the problem did not come up till 4.8.4) ANOTHER WORKAROUND * In addition to reverting to older kernels, there is another workaround. * I found that with 4.8.4, after logging into gnome, double-tapping the trackpad (as in to get the right-click context menu on the gnome desktop) does bring up the context menu consitently although moving a finger on the trackpad and single clicking does not. The trackpad does work after that. It's like gnome is ignoring the trackpad until the double-click event is received and then processes the trackpad events.
Fixed in kernel 4.8.12. Trackpad works as expected.