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If right-click desktop and go to Properties/Settings/Screen resolution, I can choose one of the following:

  • 800x600
  • 1024x768
  • 1152x864
  • 1280x720
  • 1280x768
  • 1280x800
  • 1280x960
  • 1280x1024

And for my screen I like 1280x1024. But I have a TV near my PC, so sometimes I disconnect the screen and connect the TV.

The problem is that I can't use the TV at its full resolution (1920x1080) because it isn't in the list, so I must choose 1280x720 (it has the same aspect ratio).

Then, I can't watch my 1080p videos at full resolution.

Is there a way to increase the resolution?

I have:

  • GPU: nVIDIA GeForce 6150SE nForce 430, with the latest driver (v307.74).
  • OS: Windows XP SP3
  • TV: LG 47LD465-ZA
  • Connector: VGA
share|improve this question
OOC, what model TV? – Keltari Feb 23 '13 at 17:41
what type of connector are you using to connect your TV to your computer? – Alex P. Feb 23 '13 at 17:41
@Keltari The TV is LG 47LD465-ZA – Oriol Feb 23 '13 at 17:54
@AlexP. I use VGA connector – Oriol Feb 23 '13 at 17:54
I can't seem to find any information on the ADC (analog-digital converter) chip used in your TV but it is possible that it does not support that high resolution for analog input. – Alex P. Feb 23 '13 at 18:25

I think I have resolved the same problem -

My TV would not accept values > 1280 x 800 (or thereabout) over a VGA connector. I had to use an HDMI connector to get higher values. This limitation was imposed in the monitor reporting only a subset of the resolutions it supports through the VGA cable.

share|improve this answer
But my PC doesn't have a HDMI slot. And I guess that using VGA to connect the PC to a VGA->HDMI adapter, and then connect the adapter to the TV won't work? – Oriol Feb 23 '13 at 19:25
Not sure if you get affordable VGA->HDMI adaptors, but I'd imagine a DVI->HDMI adaptor might work for you. (By the time you have got a VGA to HDMI converter you would probably be better off with a new video card which can handle HDMI - that was where I found myself and found a low power NVIDIA card for about US$40, less then the converter and much more powerful) – davidgo Feb 23 '13 at 20:55
[I had a bit of brain freeze earlier] The monitor/TV tells the vga/dvi/hdmi cable what modes it supports using the "EDID" protocol. You can probably find some software which will allow your computer to query this to double check that the monitor is indeed not advertising the high res modes. Thats how I worked out the problem was for me (under Linux). I've not used it, but DumpEDID claims to do this for free under XP - – davidgo Feb 23 '13 at 20:57

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