APPLIED: [PATCH 1/1] [SRU Artful] Input: trackpoint - assume 3 buttons when buttons detection fails

Aaron Ma at
Fri Sep 8 13:36:42 UTC 2017

Hi, Seth:

I just sent this patch to stable kernel. And got reply from maintainer.
Should we skip apply this patch for ubuntu kernel?

Because there is a user report a issue on stable kernel.

The reply email quoted:

This is a note to let you know that I've just added the patch titled

    Input: trackpoint - assume 3 buttons when buttons detection fails

to the 4.4-stable tree which can be found at:;a=summary

The filename of the patch is:
and it can be found in the queue-4.4 subdirectory.

Sorry for inconvenience,

On 09/08/2017 09:05 PM, Seth Forshee wrote:
> On Wed, Sep 06, 2017 at 12:29:34PM +0800, Aaron Ma wrote:
>> From: Oscar Campos <oscar.campos at>
>> BugLink:
>> Trackpoint buttons detection fails on ThinkPad 570 and 470 series,
>> this makes the middle button of the trackpoint to not being recogized.
>> As I don't believe there is any trackpoint with less than 3 buttons this
>> patch just assumes three buttons when the extended button information
>> read fails.
>> Signed-off-by: Oscar Campos <oscar.campos at>
>> Acked-by: Peter Hutterer <peter.hutterer at>
>> Signed-off-by: Dmitry Torokhov <dmitry.torokhov at>
>> (cherry-picked from commit 293b915fd9bebf33cdc906516fb28d54649a25ac)
>> Signed-off-by: Aaron Ma < at>
> Applied to artful/master-next. Note for the future that buglinks should
> be formatted like this:
> I fixed up the link above when I applied the patch. Thanks!

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