DELLDC4ME
1 Copper

RE: XPS 9550 not working with TB15 Dock

I bought the dock with great anticipation. Just used the weekend to update my 9550 and today the dock seems to work a little better...with one external monitor. I have 2, both 1080 older variants. However, there is only one HDMI port, so I run the other through VGA. Today I get no signal to the second monitor on the VGA connection. I had used the older D3100 port which worked wonderfully to extend my older laptop's display over two 24" monitors. I noticed that although I updated the bios to the latest 1.19, it still shows 1.15 in Device Manager, but if I go to reinstall it states I have 1.19. Go figure! Any suggestions?

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