NO NOT USE IT. It is shorting out the adapter electronics. If you are handy, you may be able to find a replacement plug and repair it. Or you may be able to take that one apart and reconnect all the wires to eliminate the bad ones. The bad part is, Dell thinks those adapters are made of gold and price them accordingly. I have not searched for unbranded replacements. The only downside, if you find one, is that many of the cheaper units have much more RFI. That will show up as interference on a TV that may be in close proximity to it.