My config: NFC; new BIOS; i2c_i801 unblacklisted; 4.19 kernel; firmware up to date (I think; the Windows only nature of some of the updates makes its hard to tell); synaptics. Maybe the synaptics is the problem - perhaps I need libinput and indeed in the version you mention. So that is yet another thing to yest (isn't this someone's actual job?). Also, I *like* synaptics; I do not want to use libinput.
> Have you tested if a second suspend/resume cycle revives the touchpad?
@Thorsten
My config: NFC; new BIOS; i2c_i801 unblacklisted; 4.19 kernel; firmware up to date (I think; the Windows only nature of some of the updates makes its hard to tell); synaptics. Maybe the synaptics is the problem - perhaps I need libinput and indeed in the version you mention. So that is yet another thing to yest (isn't this someone's actual job?). Also, I *like* synaptics; I do not want to use libinput.
> Have you tested if a second suspend/resume cycle revives the touchpad?
I think so.