I have four USB ports on my Dell Latitude D620.
Three work perfectly, one (let's call it Port A) does not.
Here's what I've observed so far:
- All thumb drives, except for one, work fine in Port A (That is, I can save and launch documents and media files)
- The one that does not work is a 16GB micro that hosts my iTunes library
- My iPod is not recognized when plugged into Port A, but it is in others.
- My iPod CHARGES when plugged into Port A, however.
- My wireless presenter's receiver is not recognized
When I say "not recognized", I mean it does not make the funny USB connection sound, and does not show up in "Safely Remove Hardware". Additionally, the laptop does not try to find/make a new hardware connection.
All of the above mentioned devices work correctly in other USB ports on the same machine.
This happens regardless of where the laptop is, which of two power adaptors it's plugged into, or whether it's running on battery power. It is not specific to one power supply, or where in the house (or country) my machine is.
Port A is the top one on the right side of the keyboard.
I first noticed this issue in early January. It has been this way ever since.
The laptop is two years old. The iPod is 18 months, and the 16GB drive was purchased in early January.
I have tried deleting my USB info in Device Manager and rebooting. This did not make a difference.
Love to hear any suggestions or advice.
Cheers,