This article aims to help users troubleshoot and resolve issues with touchback not working on display connected to ClickShare. It provides clear, step-by-step instructions to identify and fix common problems, ensuring a smooth and interactive meeting experience.
Common issues
- Symptoms: Touchback not responding, single touch only, multitouch not working.
- Possible Causes: Connection issues, compatibility problems, software settings, or permissions.
Troubleshooting tips
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Check connections
- Ensure the touch panel is connected to the ClickShare Base Unit using either HDMI™ and USB or USB Type-C, depending on the touch panel type, for both video and data streams.
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Verify single touch panel is connected
- Ensure only one touch panel is connected to the Base Unit, as multiple panels are not supported.
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Verify Base Unit supports touchback function, ensure it is enabled
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If your Base Unit supports touchback function and detects a touch panel, you will see a touchback button in the bottom-right corner of the status bar.

Touchback function is enabled
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Check permissions on macOS
- Ensure ClickShare has accessibility permissions in macOS settings: Privacy and Security > Accessibility.
Ensure the ClickShare app has been granted Accessibility permission. If ClickShare is not listed, press the + button to locate and add it to the list.
- Ensure ClickShare has accessibility permissions in macOS settings: Privacy and Security > Accessibility.
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Multitouch is not available or working
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Verify the maximum number of touch points supported by your touch panel.
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Ensure your environment meets the requirements for multitouch.
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Contact Barco support:
If you are still experiencing issues or have any other touchback-related problems not mentioned here, please contact Barco support by creating a service ticket (how-to, see KB6024).