quirks: Thinkpad T470 trackpoint multiplier

Set multiplier for T470 to 0.4, same as for T480.

Trackpoint behavior on T470 was good before 1.9.0 (more precisely,
before the commit 87b568) when a new trackpoint acceleration algorithm
was introduced instead of the traditional linear filter. Since then
it is too sensitive and seems impossible to fine-tune using hw settings
or libinput accel speed setting.

With multiplier set to 0.4 it is as good (or better) as in 1.8.4.
Sensitivity feels the same as in 1.8.4 with the same hw settings for
speed and sensitivity.

Signed-off-by: Dmitry Maluka <dmitrymaluka@gmail.com>
This commit is contained in:
Dmitry Maluka 2021-08-26 23:06:30 +02:00
parent 53bd70f4c7
commit a1566e3492

View file

@ -26,6 +26,11 @@ MatchName=Synaptics tm2964-001
MatchDMIModalias=dmi:*svnLENOVO:*:pvrThinkPadT440p*
ModelLenovoT450Touchpad=1
[Lenovo T470 Trackpoint]
MatchName=*TPPS/2 IBM TrackPoint
MatchDMIModalias=dmi:*svnLENOVO:*:pvrThinkPadT470:*
AttrTrackpointMultiplier=0.4
[Lenovo T480 Trackpoint]
MatchName=*TPPS/2 IBM TrackPoint
MatchDMIModalias=dmi:*svnLENOVO:*:pvrThinkPadT480:*