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Symptoms of digitizer issues include unexpected or no response to the stylus. When this happens follow

these troubleshooting steps:

1. Try resetting the factory default settings in the N‐trig Tablet Settings Control Panel applet.

2. Test the digitizer in Touch mode.

3. Try a new stylus tip.

4. Recalibrate the digitizer.

5. Run the digitizer diagnostics.

Stylus

One of the easiest troubleshooting steps for suspected digitizer issues is to determine if the stylus is the

cause. Simply switch to Touch mode. If the digitizer responds to your finger but not the stylus, the stylus

is the most likely cause of the issues.

Calibrating stylus input should be one of your first steps in troubleshooting digitizer issues. To calibrate

the stylus:

1. Open the QuickSet utility.

2. On the System menu, click Tablet Settings.

3. On the Tablet Settings dialog, click the Pen & Input tab.

4. Click Calibrate.

5. Follow the instructions on the screen.

NOTE: Be sure to calibrate the stylus in both portrait and landscape modes.

Troubleshooting Display Issues

Identifying Display Issues

To troubleshoot display issues, you need to categorize the fault and identify the components

responsible for the fault.

Display issues could be due to any of the following:

•

POST‐related video failure:

This type of failure is typically identified during the POST routine and while the BIOS is initializing the

video adapter. Note that the LCD panel would not have been tested at this point. It would be an

easy mistake to confuse the failure of the video adapter with a failed LCD panel due to the absence

of a display. This highlights the importance of classifying the category failure correctly.

•

LCD failure:

An LCD panel failure refers specifically to the panel or the LCD flex cable that is connected to the

system board.

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