Hi Benjamin, et. al., I have just merged a patch which adds a couple of DMI quirks to disable the touchpad on/off functionality of the ideapad-laptop module on some models, because it is causing issues there. Patch: https://lore.kernel.org/platform-driver-x86/20221018095323.14591-1-limanyi@xxxxxxxxxxxxx/ Discussion: https://lore.kernel.org/platform-driver-x86/fdceb6d2-c38c-e8ff-4c19-b01521ca46c0@xxxxxxxxxx/ Rather then using DMI quirks I would prefer to just disable it everywhere where a i2c-attached touchpad is used. Be it either one only attached to i2c, or one of the synaptics intertouch thingies. I'm still trying to figure out why the ideapad-laptop module's touchpad control (which uses the EC + enabling/disabling the i8042 aux-port) matters for i2c-attached touchpads at all, so I suspect that intertouch might be a part of it. So now I'm wondering if there is some nice way for the ideapad-laptop code to check if the touchpad is intertouch and/or if it is i2c-attached only ... Any ideas? Regards, Hans p.s. Is it possible that Elan touchpads use something similar to intertouch, or is that a synaptics thing only (under Linux) ?
