[Artful][linux-oem][PATCH 0/3] Enable synaptics touchpad intertouch support on

Aaron Ma aaron.ma at canonical.com
Wed Oct 18 15:10:04 UTC 2017

On 10/18/2017 10:22 PM, Seth Forshee wrote:
> On Mon, Oct 16, 2017 at 11:50:23PM +0800, Aaron Ma wrote:
>> BugLink: http://bugs.launchpad.net/bugs/1723986
>> [Impact]
>> Synaptics touchpad/trackpoint fail to work on Lenovo X1C5/6 and X280.
>> And they report they support intertouch mode through SMBus ver 3.
>> Current kernel driver limits RMI4 to SMBus 2.
>> [Fix]
>> Enable SMBus ver 3 and set them to SMBus mode will make synaptics work
>> fine.
>> [Test Case]
>> Tested on X1C5/6 and X280, confirm patches work fine.
>> [Regression Potential]
>> Enable RMI4 support on specific device ID, no regression is supposed.
>> Zesty and Xenial do not support this intertouch mode, so no need these
>> patches.
> Have these been regression tested on other hardware which uses this
> driver?

Yes, tested on X1 Carbon 5th with different touchpad pnp id LEN0072 and
Raven2-3, Raven3-1, T460s those are using synaptics touchpad.

All of them works fine.


More information about the kernel-team mailing list