On 5/21/19 2:49 PM, Benjamin Tissoires wrote: > A quick google image search showed that the X240 had 2 versions: one > with the top software buttons, one without. > > And this definitively rings a bell. I am sure we asked Lenovo and > Synaptics to change the PnPID when they would do such a change, but > they "forgot" during the *40 series refresh. > We have code in place to fix the reported ranges of the coordinates, > and we had to check against the board id (see min_max_pnpid_table[] in > synaptics.c). > Unfortunately, X240 (LEN0035) is not part of this table, so I don't > know which refresh of the board ID has implemented the non top > software buttons. After double confirm from Lenovo, looks like they mixed up with touchpads on X240/X240s. For now only one user reported this LEN0035 doesn't work on SMBus mode. module parameter can be a workaround. Maybe some touchpads with software top buttons are working well on SMBus. Let's keep eyes on this issue for now. Regards, Aaron > > Cheers, > Benjamin
