https://bugs.freedesktop.org/show_bug.cgi?id=101196
Bug ID: 101196
Summary: Lenovo Yoga 720 (15") touchpad not ignored by kernel
drivers
Product: Wayland
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: major
Priority: medium
Component: libinput
Assignee: [email protected]
Reporter: [email protected]
Created attachment 131517
--> https://bugs.freedesktop.org/attachment.cgi?id=131517&action=edit
dmesg
Honestly, it is not libinputs fault but the kernels. The kernel simply ignores
the tackpad, which is listed in lsusb, but ignored at all other levels. I tried
to force the usbhid driver to bind to it using echo -n "1-6" >
/sys/bus/usb/drivers/usbhid/bind and other similar commands. I also managed to
find the modalias of the usb device and tried to make it bind in
etc/modprobe/local-aliases.conf :
alias usb:v06CBp0081d0164dcFFdsc10dpFFicFFisc00ip00in00 usbhid
I provided lsusb, dmesg, devices in the attachement. We can see that the kernel
totally ignores the device for strange reasons.
It is a bug common on all lenovo yoga 720 15", the 13" version doesn't have
this problem. This laptop is expected to sell a lot because it is de facto the
most powerfull convertible available on the market.
https://forums.lenovo.com/t5/Linux-Discussion/Install-linux-in-Lenovo-Yoga-720/td-p/3633251
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