I celebrated too early.
This morning when I turned on the computer, the display stop working again.
1. I checked device manager and it didn't seem to have any error message. I could see the Display adapter - USB-VGA-165 .
2. I unplug the usb and replug it back in. This time, the display adapter didn't show up in device manager.
3. I tried all 3 usb ports. I can hear the ding ding USB connect and disconnect sound continuously. So, it is probably tryiing to install the driver for the usb.
4. Finally, I uninstalled the driver and reinstall 5.6M, plug it back to the usb.
And it is working without reboot.
What cause this kind of problem?
