Public bug reported:
Occasionally I'll see a continuous jitter from my touchpad - the mouse
pointer continuously jitters around by a small number of pixels (it does
stay in the same area of screen).
The only fix I have found is to suspend and resume - then the problem
goes away.
When this happened just now, I collected an evtest log from the touchpad, which
I will
attach (I did not touch the touchpad or buttons while the log was being
generated,
even though events are being generated continuously).
The device generating the events was this:
I: Bus=0011 Vendor=0002 Product=0007 Version=01b1
N: Name="SynPS/2 Synaptics TouchPad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input10
U: Uniq=
H: Handlers=mouse1 event10
B: PROP=5
B: EV=b
B: KEY=6420 10000 0 0 0 0
B: ABS=11000003
I'm using a thinkpad X220 using stock Oneiric, 64 bit.
The output from "xinput --list-props $id" is this (unfortunately I collected
this
*after* I had stopped the jitter by suspending and resuming the machine):
Device 'SynPS/2 Synaptics TouchPad':
Device Enabled (132): 1
Coordinate Transformation Matrix (134): 1.000000, 0.000000, 0.000000,
0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (250): 1
Device Accel Constant Deceleration (251): 2.500000
Device Accel Adaptive Deceleration (252): 1.000000
Device Accel Velocity Scaling (253): 12.500000
Synaptics Edges (267): 1752, 5192, 1620, 4236
Synaptics Finger (268): 24, 29, 255
Synaptics Tap Time (269): 180
Synaptics Tap Move (270): 221
Synaptics Tap Durations (271): 180, 180, 100
Synaptics Tap FastTap (272): 0
Synaptics Middle Button Timeout (273): 75
Synaptics Two-Finger Pressure (274): 280
Synaptics Two-Finger Width (275): 6
Synaptics Scrolling Distance (276): 100, 100
Synaptics Edge Scrolling (277): 0, 0, 0
Synaptics Two-Finger Scrolling (278): 1, 1
Synaptics Move Speed (279): 1.000000, 1.750000, 0.039809, 40.000000
Synaptics Edge Motion Pressure (280): 29, 159
Synaptics Edge Motion Speed (281): 1, 401
Synaptics Edge Motion Always (282): 0
Synaptics Off (283): 0
Synaptics Locked Drags (284): 0
Synaptics Locked Drags Timeout (285): 5000
Synaptics Tap Action (286): 0, 0, 0, 0, 0, 0, 0
Synaptics Click Action (287): 1, 3, 2
Synaptics Circular Scrolling (288): 0
Synaptics Circular Scrolling Distance (289): 0.100000
Synaptics Circular Scrolling Trigger (290): 0
Synaptics Circular Pad (291): 0
Synaptics Palm Detection (292): 0
Synaptics Palm Dimensions (293): 9, 199
Synaptics Coasting Speed (294): 20.000000, 50.000000
Synaptics Pressure Motion (295): 29, 159
Synaptics Pressure Motion Factor (296): 1.000000, 1.000000
Synaptics Resolution Detect (297): 1
Synaptics Grab Event Device (298): 1
Synaptics Gestures (299): 1
Synaptics Capabilities (300): 1, 0, 0, 1, 1, 1, 1
Synaptics Pad Resolution (301): 129, 75
Synaptics Area (302): 0, 0, 0, 0
Synaptics Noise Cancellation (303): 25, 25
** Affects: xserver-xorg-input-synaptics (Ubuntu)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/899230
Title:
occasional continuous jitter from touchpad
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/899230/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
