External monitor is recognized not it says "no signal".

Original title: does not recognize external monitor

I use an external monitor, which is a TV for watching movies via the port HDMI on my ACER Aspire 6930 AVOL 22 "1080 p.  He worked in this configuration for at least a month, but recently my computer does not recognize the tv.  It says "no signal".  I tried a friends laptop and the tv works as advertised, so I'm sure it's the computer.  Any suggestions?  Thank you.

Well, I think that something to with my HDMI port/card does not work.  I discovered that we had a power surge from the other day, and I think that is what is happening.  He got zapped.  I found many programs that just don't have anything in them, and its been quite a process to get it all going again, but I can't get the HDMI port to work.  I got the VGA to work, but not the HDMI port.  I did the above a couple of times and made sure I had the correct drivers and latest, nothing helps.  Well.

Tags: Windows

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