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Windows 7: no signal from pc to hdtv

20 Apr 2012   #11
Maguscreed

Microsoft Community Contributor Award Recipient

Windows 7 x64
 
 

Should have a 'metalish' looking sticker on the back with serial and model info on it.


My System SpecsSystem Spec
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20 Apr 2012   #12
dngrs

win 7 32b
 
 

Yeah I looked and its
lg 32LC51
My System SpecsSystem Spec
20 Apr 2012   #13
dngrs

win 7 32b
 
 

eng.pdf download - 2shared
here is the manual
My System SpecsSystem Spec
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20 Apr 2012   #14
Maguscreed

Microsoft Community Contributor Award Recipient

Windows 7 x64
 
 

Well it is a 720p tv so that resolution I gave you up above is the highest it will ever be able to display.

Outside of that I see no specific information regarding problems with that model and pc's.
My System SpecsSystem Spec
20 Apr 2012   #15
dngrs

win 7 32b
 
 

It worked when I had the pc set to 1680x1050 too.
My System SpecsSystem Spec
20 Apr 2012   #16
Maguscreed

Microsoft Community Contributor Award Recipient

Windows 7 x64
 
 

well you should be able to run two resolutions so long as you are not set to 'duplicate'
I'm out of ideas on this one though as you tried multiple cabling solutions before you even came here.
I will be honest with you when I hooked up my lcd tv to my gtx580 it was instant, and when I added a monitor that took all of 10 seconds to set up.

I can't for the life of me imagine why you are having so much trouble getting the tv to accept the signal.
My System SpecsSystem Spec
20 Apr 2012   #17
dngrs

win 7 32b
 
 

I dunno. It worked fine before :|. I'll send it to service as I got no idea what else to do.
My System SpecsSystem Spec
20 Apr 2012   #18
MagusMagnus

7 Ultimate SP1 x64
 
 

Have you checked the TV's HDMI port for dust? It accumulates pretty quick when the ports are left empty for a period of time, so I'd do that first and if you see it in there, blow it out with a can of air or a compressor if you have one (be sure to not let any liquid spit out first, it's happened to me before so just test it). You'd be amazed what just a tiny little fleck can do. Think back to those Nintendo cartridge games, eh?

However, since you say nothing else has changed other than the GPU driver, that's probably it right there. See if you can't roll that driver back to the previous version in Device Manager or else restore your system with Windows Restore to the point BEFORE your GPU driver was changed. Failing that, I don't know.

I use an external monitor on my mobile computer and it recognizes the connection within 5 seconds (albeit I have to press fn+F5 for it to switch over the first time, then mess with the CCC settings).

Also another thing you could explore for possible physical problems with the TV or graphics card, is to try a DVI/VGA connection if your GPU/TV supports either of those.
My System SpecsSystem Spec
20 Apr 2012   #19
dngrs

win 7 32b
 
 

It's weird that the pc does see the connection to the tv. In the nvidia control panel, it sees hdcp connection with the LG and in the "set up digital audio" it also sees the tv in the hdmi bar there.
I don't remember what driver I had last time it worked.
My System SpecsSystem Spec
22 Apr 2012   #20
dngrs

win 7 32b
 
 

I notice there are sparks ( a couple of sparks around the hdmi port and I hear nothing) when I connect the cable to the pc. What does this mean? I suppose it's bad news
My System SpecsSystem Spec
Reply

 no signal from pc to hdtv




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