Touchscreen Troubleshooting
Touchscreens can malfunction for several reasons, including
Display problems common to any monitor (loss of signal, incorrect colors, and so on). See Chapter 22, “Troubleshooting Principles,” for details.
Software problems such as corrupted or incorrectly configured drivers or applications.
Video alignment problems (you touch the screen but the wrong menu item or action takes place or the cursor moves in the opposite direction of your finger or stylus).
Hardware problems caused by the touchscreen itself, the controller, cabling, or power.
To troubleshoot hardware or software problems, use the diagnostic programs supplied with the touchscreen to verify that the hardware is working. If the hardware is working correctly, ...
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