Created attachment 165921 [details] dmesg with i8042.debug and i8042.kbdreset on Acer Aspire E5-571P I have a new Acer Aspire E5-571P laptop and installed Linux Mint 17.1 (MATE). After endless fiddling/web searching, have not been able to get the touchpad to respond at all, nor some of the WMI hotkeys such as Fn-F7 (which turns on/off the touchpad). The ACPI hotkeys work fine, as does the touchscreen (these are controlled by different modules). Running "sudo evtest" in a non-X virtual terminal, the touchpad is completely nonresponsive - no events recorded at all. Same with Fn-F7 (also ctrl-Fn-F7) and the video control hotkeys (Fn-pause,stop,ffw,rewind). Some things I have tried without success: (i) adding various boot parameters. (ii) fiddling with module parameters, e.g. "modprobe psmouse proto=imps" (iii) booting into Windows first, then back into Linux, which worked for some users (bug 81331). (iv) Install kernel 3.18.5 and used the new psmouse patch with the kernel paramter 'i8042.kbdreset', which worked for some users (bug 81331). I've attached dmesg exerpts with i8042.debug on, plus output from xinput and synclient - the touchpad is clearly being detected by the kernel. But there is a comminication problem somewhere.
I miss some elantech lines in your dmesg output, but anyway, could you try the following command: echo 1 > /sys/devices/platform/i8042/serio1/reg_07 Does this help ?
Created attachment 171661 [details] dmesg for Acer Aspire E5-571 (more detailed) More complete dmesg, with same kernel parameters i8042.debug & i8042.kbdreset. Touchpad is completely nonresponsive. Computer Acer Aspire E5-571P-55TL running Linux Mint 17.1 with Kernel 3.18.5, Mate Desktop.
(In reply to Ulrik De Bie from comment #1) > I miss some elantech lines in your dmesg output, but anyway, could you try > the following command: > > echo 1 > /sys/devices/platform/i8042/serio1/reg_07 > > Does this help ? No. This file already has value 0x01. To be sure, I ran your command as superuser, but there is no change. I attached a more complete dmesg.