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hwdb: add fuzz override for Dell Precision 7510 ALPS DualPoint TouchPad (#43747)

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Recently switched to Linux on my Dell Precision 7510 and noticed a
jittery/shaking effect when scrolling slowly with the touchpad, across
multiple applications.

libinput measure fuzz reported no fuzz value set for the touchpad's
axes, which explains the jitter (sensor noise being read as real
motion). Used libinput measure fuzz --fuzz=28 to generate and apply a
hwdb override, then confirmed scrolling was smooth afterward.

Added a new entry to hwdb/60-evdev.hwdb for this device:

evdev:name:AlpsPS/2 ALPS DualPoint
TouchPad:dmi:*:svnDellInc.*:pnPrecision7510*:

This is the same touchpad family as #34133 (Dell Latitude E7440), which
hit the same symptom and fix — this PR extends the coverage to the
Precision 7510.
This commit is contained in:
Edvard Jaegtnes
2026-09-13 12:32:33 +01:00
committed by GitHub
parent b504aa05fd
commit 9efeb4b1d4
1 changed files with 7 additions and 0 deletions
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hwdb.d/60-evdev.hwdb
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@@ -364,6 +364,13 @@ evdev:name:SynPS/2 Synaptics TouchPad:dmi:bvn*:bvr*:bd*:svnDellInc.:pnPrecision5
EVDEV_ABS_35=::42
EVDEV_ABS_36=::43
#Dell Precision 7510
evdev:name:AlpsPS/2 ALPS DualPoint TouchPad:dmi:*:svnDellInc.*:pnPrecision7510*:
EVDEV_ABS_00=:::28
EVDEV_ABS_01=:::28
EVDEV_ABS_35=:::28
EVDEV_ABS_36=:::28
# Dell Precision M4700
evdev:name:AlpsPS/2 ALPS DualPoint TouchPad:dmi:*svnDellInc.:pnPrecisionM4700:*
EVDEV_ABS_00=0:1960:24