Overview

DISPLAX Service allows you to limit the maximum number of simultaneous touches reported by a touch controller. This is useful for performance optimization, application compatibility, and filtering out unintended or excessive touch input.

By defining a maximum touch count, the system will ignore any additional touches beyond the configured limit.

When to Limit the Number of Touches

You may want to set a touch limit when:

• Running applications that support only a fixed number of touches

• Optimizing performance on low-resource systems

• Reducing unintended multi-touch input

• Using touch sensors in public or high-traffic environments

• Testing or debugging touch behavior

Check the Current Touch Limit

To see the current maximum number of touches reported by the device, run:

displaxservice -a 127.0.0.1 --tmax

This command returns the current touch limit configured for the connected device.

Set the Maximum Number of Touches

To limit the number of reported touches to 10, run:

displaxservice -a 127.0.0.1 --tmax 10

The device will now report a maximum of 10 simultaneous touches.

Important Notes

• Touches beyond the defined limit are ignored, not queued.

• The optimal value depends on both the hardware capabilities and the target application.

• Some operating systems or applications may impose their own touch limits.

• Changes take effect immediately unless otherwise specified by the device firmware.

Best Practices

• Match the touch limit to the maximum supported by your application, otherwise leave it at the maximum (factory default).

• Reboot or reinitialize the touch controller if behavior appears inconsistent after changes.