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Hi!
I am having some issues with the touchpad on my Lenovo Thinkpad X1 Extreme 2nd gen. At first the touchpad (Synaptics TM3512-010) seems to work fine, but after a while it takes maybe 250ms from when i put my finger down on the touchpad until it starts moving, meaning that by the time it starts moving i am already halfway across the touchpad...
At first I thought this might have had something to do with fuzz, as I thought it started reacting after I moved my finger far enough. However, now I realized I can get pixel-perfect precision by just waiting a moment before moving my finger?
I've also tried running `libinput debug-events --verbose` and when I quickly swipe my finger across the touchpad, sometimes I don't even get a single POINTER_MOTION event:
88: event14 - pressure: end touch 0
... event14 - button state: touch 0 from BUTTON_STATE_AREA event BUTTON_EVENT_UP to BUTTON_STATE_NONE
90: event14 - pressure: begin touch 0
... event14 - button state: touch 0 from BUTTON_STATE_NONE event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
event14 POINTER_MOTION +14.142s -92.28/-32.51 (-88.00/-31.00)
event14 POINTER_MOTION +14.157s -263.91/-43.03 (-92.00/-15.00)
event14 POINTER_MOTION +14.172s -469.04/ -9.38 (-100.00/ -2.00)
event14 POINTER_MOTION +14.187s -478.42/ 60.98 (-102.00/+13.00)
96: event14 - button state: touch 0 from BUTTON_STATE_AREA event BUTTON_EVENT_UP to BUTTON_STATE_NONE
97: event14 - pressure: begin touch 0
... event14 - button state: touch 0 from BUTTON_STATE_NONE event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
99: event14 - button state: touch 0 from BUTTON_STATE_AREA event BUTTON_EVENT_UP to BUTTON_STATE_NONE
100: event14 - pressure: begin touch 0
... event14 - button state: touch 0 from BUTTON_STATE_NONE event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
102: event14 - button state: touch 0 from BUTTON_STATE_AREA event BUTTON_EVENT_UP to BUTTON_STATE_NONE
103: event14 - pressure: begin touch 0
... event14 - palm: touch 0 (TOUCH_BEGIN), palm detected (edge)
... event14 - button state: touch 0 from BUTTON_STATE_NONE event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
104: event14 - button state: touch 0 from BUTTON_STATE_AREA event BUTTON_EVENT_UP to BUTTON_STATE_NONE
105: event14 - pressure: begin touch 0
... event14 - button state: touch 0 from BUTTON_STATE_NONE event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
event14 POINTER_MOTION +18.889s 288.70/-68.30 (+93.00/-22.00)
event14 POINTER_MOTION +18.904s 143.74/ -8.46 (+68.00/ -4.00)
109: event14 - pressure: end touch 0
... event14 - button state: touch 0 from BUTTON_STATE_AREA event BUTTON_EVENT_UP to BUTTON_STATE_NONE
111: event14 - pressure: begin touch 0
... event14 - button state: touch 0 from BUTTON_STATE_NONE event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
113: event14 - button state: touch 0 from BUTTON_STATE_AREA event BUTTON_EVENT_UP to BUTTON_STATE_NONE
114: event14 - pressure: begin touch 0
... event14 - button state: touch 0 from BUTTON_STATE_NONE event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
event14 POINTER_MOTION +20.807s 114.38/ -7.15 (+64.00/ -4.00)
117: event14 - button state: touch 0 from BUTTON_STATE_AREA event BUTTON_EVENT_UP to BUTTON_STATE_NONE
118: event14 - pressure: begin touch 0
... event14 - button state: touch 0 from BUTTON_STATE_NONE event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
event14 POINTER_MOTION +21.583s 66.85/-14.62 (+64.00/-14.00)
121: event14 - pressure: end touch 0
... event14 - button state: touch 0 from BUTTON_STATE_AREA event BUTTON_EVENT_UP to BUTTON_STATE_NONE
123: event14 - pressure: begin touch 0
... event14 - button state: touch 0 from BUTTON_STATE_NONE event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
126: event14 - button state: touch 0 from BUTTON_STATE_AREA event BUTTON_EVENT_UP to BUTTON_STATE_NONE
127: event14 - pressure: begin touch 0
... event14 - button state: touch 0 from BUTTON_STATE_NONE event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
128: event14 - pressure: end touch 0
... event14 - button state: touch 0 from BUTTON_STATE_AREA event BUTTON_EVENT_UP to BUTTON_STATE_NONE Anyone have any idea what's happening? It's driving me mad...
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