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How to get rid of the delay way before Lenovo touch pad reacts?

8 votes
5 answers
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On my Lenovo T460p, I have a "delay way" before touch pad movement or scrolling is registered. **Note:** This delay way is not to be confused with inactive areas of the touchpad as configurable through synclient and used e.g. for clickpad features. This can more be compared to "dead zones" of joysticks, which only react after a certain amount of movement. When I touch the pad and start moving my finger, at first, nothing happens. I have to move the finger for a few millimeters before the mouse pointer would respond. It then registers the movement completely, which means that whenever I start using the touch pad, I have a skip by tens of pixels in the pointer movement. This makes the touch pad unusable for any "precision" work, such as hitting the close button on a tab. This also happens after I let the finger rest within a movement for a second or so. The same happens for two-finger scrolling. These are the xinput settings: Device 'SynPS/2 Synaptics TouchPad': Device Enabled (139): 1 Coordinate Transformation Matrix (141): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000 Device Accel Profile (275): 1 Device Accel Constant Deceleration (276): 2.500000 Device Accel Adaptive Deceleration (277): 1.000000 Device Accel Velocity Scaling (278): 12.500000 Synaptics Edges (297): 1574, 5369, 1354, 4571 Synaptics Finger (298): 25, 30, 0 Synaptics Tap Time (299): 180 Synaptics Tap Move (300): 254 Synaptics Tap Durations (301): 180, 100, 100 Synaptics ClickPad (302): 0 Synaptics Middle Button Timeout (303): 75 Synaptics Two-Finger Pressure (304): 282 Synaptics Two-Finger Width (305): 7 Synaptics Scrolling Distance (306): 115, 115 Synaptics Edge Scrolling (307): 0, 0, 0 Synaptics Two-Finger Scrolling (308): 1, 1 Synaptics Move Speed (309): 1.000000, 1.750000, 0.034590, 0.000000 Synaptics Off (310): 0 Synaptics Locked Drags (311): 0 Synaptics Locked Drags Timeout (312): 5000 Synaptics Tap Action (313): 0, 0, 0, 0, 1, 3, 2 Synaptics Click Action (314): 1, 3, 2 Synaptics Circular Scrolling (315): 0 Synaptics Circular Scrolling Distance (316): 0.100000 Synaptics Circular Scrolling Trigger (317): 0 Synaptics Circular Pad (318): 0 Synaptics Palm Detection (319): 0 Synaptics Palm Dimensions (320): 10, 200 Synaptics Coasting Speed (321): 20.000000, 50.000000 Synaptics Pressure Motion (322): 30, 160 Synaptics Pressure Motion Factor (323): 1.000000, 1.000000 Synaptics Grab Event Device (324): 0 Synaptics Gestures (325): 1 Synaptics Capabilities (326): 1, 0, 0, 1, 1, 1, 1 Synaptics Pad Resolution (327): 65, 44 Synaptics Area (328): 0, 0, 0, 0 Synaptics Noise Cancellation (329): 28, 28 Device Product ID (267): 2, 7 Device Node (266): "/dev/input/event1" Has anyone a solution for this? I have tried to set Noise Cancellation to `0, 0`, but that did not help. This is on Debian testing (stretch). Fedora 24 Workstation Live Image also shows the same issue. 2019-11-20: The problem still persists. Here is a screen capture of how the cursor behaves when I roll my finger up and down **without pause** on the touchpad (no "movement", just rolling the fingertip). I am still on Debian testing (which is nowadays bullseye). Image
Asked by Jonas Schäfer (1803 rep)
Jun 21, 2016, 11:58 AM
Last activity: Jan 13, 2025, 07:45 PM