Hello, I have just installed new 4.0-rc4 kernel inside Ubuntu 14.04.2, and the bad news is that touchpad is still completely dead on Asus notebook X750JN-TY027H (Intel® Core™ i7-4710HQ; Bit 64; RAM 8GB; Nvidia GeForce GT 840M). Even cursor is missing. Here's the dmesg output: pastebinit /var/log/dmesg http://paste.ubuntu.com/10614968 Here's the xinput output: ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ Logitech USB Optical Mouse id=11 [slave pointer (2)] ⎜ ↳ ETPS/2 Elantech Touchpad id=14 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Video Bus id=7 [slave keyboard (3)] ↳ Video Bus id=8 [slave keyboard (3)] ↳ Sleep Button id=9 [slave keyboard (3)] ↳ USB Camera id=10 [slave keyboard (3)] ↳ Asus WMI hotkeys id=12 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=13 [slave keyboard (3)] I have a lot of bad messages: [ 50.384607] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6 [ 50.410439] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6 [ 50.448864] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6 [ 50.475200] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6 [ 50.501551] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6 [ 50.501555] psmouse serio4: issuing reconnect request [ 50.731428] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6 [ 50.751783] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6 [ 50.776624] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6 [ 50.802973] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6 [ 50.829317] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6 ...and so on... Thanks in advance for any help.
Can you try the follow command as root ? echo 1 > /sys/devices/platform/i8042/serio4/reg_07 Does this help ?
Hello, I've replied to you here: https://bugzilla.kernel.org/show_bug.cgi?id=90841
hello, i have the same problem, my laptop is an ASUS f550ze-xx072h, using the following command as root the trackpad start working immediatly: echo 1 > /sys/devices/platform/i8042/serio4/reg_07
Similar hardware, similar problem and same fix for me too.
Same problem with Calculate Linux kernel 4.2.8. The command **echo 1 > /sys/devices/platform/i8042/serio4/reg_07** solves the issue.
Same touchpad, same problem. BUt when running the command all I got is "bash: /sys/devices/platform/i8042/serio4/reg_07: Permission denied". (I am running the command as a root)