Comment 177 for bug 1651635

A few clarification points and thoughts:

1) On the Windows side there is no extra Synaptics driver doing any palm rejection. Windows uses the inbox HID driver. Anything handled in this area would be entirely with the built-in Windows software stack.

2) There haven't been any touchpad firmware updates for the XPS 9360 since launch.

3) Upgrading system firmware (BIOS) I don't believe should have any bearing on this particular issue. I know BIOS update flashes a lot of components, but touchpad is not one of them.

>Mario Limonciello from Dell is subscribed here, maybe he could comment
>>whether it is likely that a firmware update is issued?

As of right now there aren't any touchpad firmware updates in the works.

Although there could be some potential improvements to palm rejection handling in libinput as mentioned above, I'm highly suspicious of a few pieces of defective hardware for those afflicted by this annoying issue. And yes I know that one person on Launchpad mentioned they had TP replaced but issue came back, but it could still be a defective replacement too.

@esokrarkose, since you seem to be able to readily reproduce on your piece of hardware I think it would be ideal if you could set up a dual boot or a Windows to go USB stick (If you have access) that you can experiment with Windows 10's inbox driver. If you can still reproduce problems there I'm going to go on a limb and say it really is defective hardware and not something that should be bandaged by libinput to look for the ghost touches.

Evidence of it happening in both places should make a pretty strong case for repair.