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How do I calibrate the touchscreen of an external display under wayland - sway?

If I plug an external monitor with touch support the touch input is getting mapped to the main monitor, not the external one.

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  • Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. Commented Mar 1, 2023 at 6:25

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  1. get the input device with swaymsg -t get_inputs
  2. get the monitor with swaymsg -t get_outputs
  3. test with swaymsg input <input> map_to_output <output>
  4. set in sway config file input <input> map_to_output <output>
  5. do the same for the main display if it supports touch so

for me the command looked like the following:

input "8146:32786:Siliconworks_SiW_HID_Touch_Controller" map_to_output DP-1

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