Uninstalling and letting the installation wizard install the drivers after you reboot is an option, drivers can become corrupted.
There is a problem with a part of the registry called the Selective Suspend which recognizes when the USB port isn't in use and will remove the voltage to it to conserve on power. Some times when USB devices are plugged and unplugged frequently this feature will not recognize the new device and apply power back to the port. There is one thing you can try, go into the Device Manager and right click the icon of the monitor at the top of the right side pane, and click on Scan for scan for hardware changes.
If this is the problem, and it persists you can disable the Selective Suspend feature in the registry.
Anytime that you make any change in the registry there is the chance that you can damage it resulting rendering Windows inoperable. For this reason we recommend that you back up the registry before making any changes.Backup Your Registry with ERUNT
- Please use the following link and scroll down to ERUNT and download it.
- For version with the Installer:
Use the setup program to install ERUNT on your computer
- For the zipped version:
Unzip all the files into a folder of your choice.
Click Erunt.exe to backup your registry to the folder of your choice.
Note: to restore your registry, go to the folder and start ERDNT.exeDisable Selective Suspend
Open the Registry on the affected machine and navigate to the key HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\USB
Edit or create a DWORD
value named DisableSelectiveSuspend
and set it to a decimal value of 1.
Reboot the computer.
Edited by dc3, 31 July 2008 - 03:26 AM.