It's likely that the pin structure to let the television know that something is connected is misconfigured, and this is a common issue with several laptop manufacturers. I've seen a bit of this in the past years, and here's how this can be addressed:

1. Download the latest video driver. Many manufacturers have handled this issue that way.

If that doesn't work:

2. Download the latest BIOS for your computer. This is where the pin structure is updated to correctly run.

The VGA should be able to connect. If you see a message where it says "Mode Not Supported", change the resolution on the signal and you should be all set.