1
I recently bought a Xiaomi Air 12.5 and installed centos 7 on it with 4.8.x kernel from elrepo. I got everything working perfectly except the Synaptics touchpad.
Spend days trying, but right now I am out of ideas.
The device isnt detected in /proc/bus/input/devices at all. And dmesg is showing me this.
[ 12.241745] i2c_hid i2c-SYNA3105:00: Failed to get GPIO interrupt
[ 12.260140] i2c_hid: probe of i2c-SYNA3105:00 failed with error -2
And because the touchpad isnt detected by the kernel, xinput is empty
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
I tried ubuntu 16.x live cd and fedora 24 and 25 live cd and they all detected the touchpad perfectly in the kernel. So I compared kernel configs and modprobe.d blacklists, but couldnt find out what is wrong with my CentOS.
I tried black listing various modules (i2c_hid, i2c_i801 etc) but none changed the dmesg message.
On the live cd's its the i2c_designware that works with the touchpad, I have them loaded in CentOS 7 too.
So is it something in the kernel config that is causing this? Thanks
Unfortunately I don't have a solution, but I tried Ubuntu 16.04.1 LTS on the same model. You're right, the touchpad is being detected correctly, but it's not working properly. Drag & Drop does not work, and after resuming from stand-by the touchpad freezes completely. – asp_net – 2016-10-22T16:55:15.537
@asp_net Did you try this yet? modprobe -r psmouse; modprobe psmouse after standby. The drag and drop or any other synaptics touchpad functionality can and should be configured in X or with synclient. – laapsaap – 2016-10-22T18:19:12.800