A:AnswerNo in addition to the vga cable you would need to connect a stereo sound cable with one end plugging into headphone jack on computer and sound input on monitor.
A:AnswerHi,
As you told that your laptop has a VGA port then you should buy a VGA to HDMI concreter.
This is HDMI to VGA converter, so this work when your laptop has hdmi port and tv has a VGA port.
A:AnswerCheck the HDMI drivers on the laptops. Just had a similar problem with my 9 month old Dell work laptop. Our IT guy had to make some kind of fix. He said that some kind of pushed software update may have screwed up the HDMI drivers. Works fine now.