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Compute Module • Re: Ilitek ILI2131 with CM4 Trixie

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That's a big improvement! It kind of works, except the mouse jumps off the screen when you touch the screen anywhere.

Code:

dtoverlay=ilitek-ts-i2c,interrupt=17,sizex=1280,sizey=800
Here is the output of sudo evtest:

Touch top left

Code:

vent: time 1763400317.091884, -------------- SYN_REPORT ------------Event: time 1763400388.506610, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 43Event: time 1763400388.506610, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 16061Event: time 1763400388.506610, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 16045Event: time 1763400388.506610, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1Event: time 1763400388.506610, type 3 (EV_ABS), code 0 (ABS_X), value 16061Event: time 1763400388.506610, type 3 (EV_ABS), code 1 (ABS_Y), value 16045
Touch bottom right

Code:

vent: time 1763400388.598900, -------------- SYN_REPORT ------------Event: time 1763400390.970409, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 44Event: time 1763400390.970409, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 466Event: time 1763400390.970409, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 752Event: time 1763400390.970409, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1Event: time 1763400390.970409, type 3 (EV_ABS), code 0 (ABS_X), value 466Event: time 1763400390.970409, type 3 (EV_ABS), code 1 (ABS_Y), value 752

Statistics: Posted by skyfish — Mon Nov 17, 2025 5:30 pm



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