What is happening
What is probably happening is the computer is running on a low power or energy efficient mode, and to conserve battery power Windows switches the USB ports for the eye tracker to low power, and the camera shuts down, and no longer is available.
Here are the two errors that you may be seeing when relaunching the programs after the tracking stops.
Text of Errors:
Error Reading Serial Number Verify that the camera's power LED is on. Verify that the data cable is securely connected to the camera and the computer. If the LED is on and the cable is connected, you may need to reinstall the camera driver. See the user's manual for details.
No eye tracker was detected on your system. Disconnect the eye tracker. Reconnect it after 10 seconds. Restart Quick Access. If you feel that you have received this message in error, please contact us at: firstname.lastname@example.org eyetechds.com/support 1-888-539-3832, ext 2
How to Disable USB Power Suspension
To fix this issue, go to
and change the two options in the tree from
Then, lastly, reconnect the camera, and the intermittent disconnects should go away.
answered 26 Feb '14, 17:57