IBM / Lenovo trackpoints allow specifying a sensitivity setting through a ps/2 command, which changes the range of the deltas sent when using the trackpoint. On some models with normal usage only deltas of 1 or 2 are send, resulting in there only being 2 mouse cursor movement speeds, rather than the expected fluid scale.
Changing the sensitivity to a higher level than the bootup default fixes this, the rule additions in this commit allows specifying a new sensitivity default through hwdb giving a better ootb experience. --- hwdb/70-pointingstick.hwdb | 12 ++++++++++++ rules/70-pointingstick.rules | 9 +++++++-- 2 files changed, 19 insertions(+), 2 deletions(-) diff --git a/hwdb/70-pointingstick.hwdb b/hwdb/70-pointingstick.hwdb index a893da6..89f4b8a 100644 --- a/hwdb/70-pointingstick.hwdb +++ b/hwdb/70-pointingstick.hwdb @@ -42,6 +42,7 @@ # # Allowed properties are: # POINTINGSTICK_CONST_ACCEL +# POINTINGSTICK_SENSITIVITY # ######################################### # POINTINGSTICK_CONST_ACCEL # @@ -54,6 +55,17 @@ # by how much to multiply deltas generated by the pointingstick to get # normalized deltas. # +######################################### +# POINTINGSTICK_SENSITIVITY # +######################################### +# +# TPPS/2 IBM TrackPoint driver sensitivity sysfs setting +# POINTINGSTICK_SENSITIVITY=<sensitivity> +# +# Where <sensitivity> is a number between 0 and 255, note this property +# only applies to TPPS/2 IBM TrackPoint devices, see +# drivers/input/mouse/trackpoint.c in the Linux kernel sources. +# # # Sort by by brand, model diff --git a/rules/70-pointingstick.rules b/rules/70-pointingstick.rules index 5a853f3..15e34a0 100644 --- a/rules/70-pointingstick.rules +++ b/rules/70-pointingstick.rules @@ -6,11 +6,16 @@ ENV{ID_INPUT_POINTINGSTICK}=="", GOTO="pointingstick_end" # skip later rules when we find something for this input device IMPORT{builtin}="hwdb --subsystem=input --lookup-prefix=pointingstick:", \ - GOTO="pointingstick_end" + GOTO="pointingstick_apply_settings" # device matching the input device name and the machine's DMI data KERNELS=="input*", \ IMPORT{builtin}="hwdb 'pointingstick:name:$attr{device/name}:$attr{[dmi/id]modalias}'", \ - GOTO="pointingstick_end" + GOTO="pointingstick_apply_settings" + +LABEL="pointingstick_apply_settings" + +TEST=="../../../sensitivity", ENV{POINTINGSTICK_SENSITIVITY}!="", \ + ATTR{../../../sensitivity}="$env{POINTINGSTICK_SENSITIVITY}" LABEL="pointingstick_end" -- 2.3.4 _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel