Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: Elantech SMBus support regression | From | Kai Heng Feng <> | Date | Mon, 17 Dec 2018 15:25:36 +0800 |
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Hi,
> On Dec 12, 2018, at 22:25, Benjamin Tissoires <benjamin.tissoires@redhat.com> wrote: > > 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.
These are feedbacks from the users:
L480: cat /sys/bus/serio/devices/serio1/firmware_id PNP: LEN2036 PNP0f13
P52: "cat /sys/bus/serio/devices/serio1/firmware_id": PNP: LEN2132 PNP0f13
So looks like it’s different to LEN2131.
Kai-Heng
> > Cheers, > Benjamin > > On Thu, Nov 22, 2018 at 5:22 AM Kai Heng Feng > <kai.heng.feng@canonical.com> 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
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