Hi, sorry for the late reply. I was always meaning to fix this the proper way but couldn't dedicate a full day of work to go to the bottom of elan_i2c. Meanwhile, I am thinking at simply having a blacklist of devices that we know are not working well (P52, L480, L580 and P72). Could you get the value of /sys/bus/serio/devices/serio1/firmware_id from all of these laptops? I know the P52 is LEN2131, but I don't seem to find the other PNPIds. Cheers, Benjamin On Thu, Nov 22, 2018 at 5:22 AM Kai Heng Feng <kai.heng.feng@xxxxxxxxxxxxx> wrote: > > Hi Benjamin, > > It appears the Elantech SMBus support breaks some users’ touchpad. > > Please have a look at [1] [2], thanks! > > [1] https://bugs.launchpad.net/bugs/1803600 > [2] https://bugs.archlinux.org/task/59714 > > Kai-Heng
