Dell Latitude E6400/E6500 Won’t Sleep
We have had a number of Latitude E6400/E6500 laptops that would not sleep, standby, hibernate, or whatever else when the lid was closed. To make things worse, opening the lid would result in the display not turning back on. Pressing keys, mouse buttons, track-pad, power button would not help.
It turns out this problem occurs if you have XP SP3 installed instead of Vista. Windows Update for XP includes a driver update for the integrated webcam called “Creative Technology – Streaming Media and Broadcast – Integrated Webcam”. Installing this driver causes the problem. To fix the issue, roll-back the driver to version 1.3.2.919:

If you don’t find this screenshot helpful, do the following:
- Right-Click on ‘My Computer’
- Click ‘Properties’
- Go to the ‘Hardware’ tab
- Click the ‘Device Manager’ button
- Click the ‘+’ beside ‘Imaging Devices’
- Right-Click on ‘Integrated Webcam’ and click ‘Properties’
- Select the ‘Driver’ tab and click the ‘Roll Back Driver’ button
- The driver version should be changed to 1.3.2.919
- Restart your computer if prompted and then you should be able sleep, standby, or hibernate the computer

on November 17, 2009 at 11:30 pm
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yo… informative
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