hwdb: Lenovo T490 Synaptics Touchpad hwdb entry

ikelos · poettering · commit 2ceefe45873d · 2020-01-03T09:57:07.000+01:00
The Synaptics Touchpad that comes with the T490 doesn't explicitly set its resolution, so these lines are needed to provide that, in order to help the libinput code detect overly large jumps. Since this device contains buttons under the lower section of the touchpad, large jumps are common, so having the resolution helps libinput greatly reduce the number of occurances of pointer jump. This comes from https://gitlab.freedesktop.org/libinput/libinput/issues/402.
diff --git a/hwdb.d/60-evdev.hwdb b/hwdb.d/60-evdev.hwdb
@@ -514,6 +514,13 @@ evdev:name:AlpsPS/2 ALPS GlidePoint:dmi:*svnLENOVO:*pvrLenovoYoga500-14IBD*
  EVDEV_ABS_35=117:3952:36
  EVDEV_ABS_36=105:1960:26
 
+# Lenovo Thinkpad T490
+evdev:name:SynPS/2 Synaptics TouchPad:dmi:*:svnLENOVO:*pvrThinkPadT490:*
+ EVDEV_ABS_00=::57
+ EVDEV_ABS_01=::33
+ EVDEV_ABS_35=::57
+ EVDEV_ABS_36=::33
+
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 # Razer
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