GTX 260M and overscanning on an HDTV via HDMI

Ok, so I got a 1080p HDTV and when I connect my G51vx to it via HDMI, I get overscanning happening like so

http://img97.imageshack.us/img97/4135/img0999y.jpg

As you can see, although outputting at 1920x1080, it's not pixel mapping 1:1. The picture is blurry and has gone beyond the edges of the screen.

From what I have read, this is a very common problem with HDTVs (not with LCD monitors). Some TVs have an option to disable overscanning which fix this, or they have dedicated HDMI ports for PC use. My TV only has one HDMI port and I can't seem to find any option that disables the overscanning.

Sometimes overscanning can be disabled through the graphics card which I'm trying to do through the nVidia Control Panel, but so far no luck. In the 'Adjust desktop size and position' menu, there is what seems to be an underscan/overscan adjustment option, but neither correct the screen when selected. Here are some pics

http://img295.imageshack.us/img295/8357/1080pq.png

http://img808.imageshack.us/img808/9707/img1080j.jpg

This thread talks about the same problem and it seems like on some nVidia drivers you can make custom resolutions for HDTVs but I don't have that option on my control panel.

Has anyone successfully connected their GTX 260M to an HDTV without the overscanning? Or does anyone know of a solution?

 

There is usually options for this under the aspect ratio on your TV. On my HDTV there's "Just Scan" which is 1:1 No Overscan, 16:9 which tends to zoom in a little and cause overscan and 4:3. If you have the "Just Scan" option or something similar then set it to that. Hope it helped.

 

I'm guessing you have a Sony TV? I've read that Sony TVs have the 'just scan' option. Mine only has auto, 16:9, 4:3, zoom 1 and zoom 2 but none correct the problem..

 

Have the same exact problem .. on a samsung HDTV, also tried adjusting in the nvidia settings but no luck. I now just size windows media player to the tv..

tv also doesnt seem to have any settings to adjust it

 

this is usually a monitor issue and is usually fixed with firmware updates.

 

I can adjust the resolution in the Nvidia Control panel. I'm not at home right now, but on the HDMI options you should be able to adjust the screen size output.

 

Yeah the resolution is 1920x1080. That's the screen size output. You can resize the desktop so that it fits on the screen but that doesn't get rid of the overscanning. The full resolution will still be 1920x1080, just that the viewable desktop will drop in resolution. So it will still be blurry because you'll have a lower resolution desktop on a 1920x1080 screen.

 

Funny. I was wondering about this last night and was considering making a thread about it.

In any case, I haven't yet been able to run 1920x1080 on my Samsung without getting the screen chopped off. I ended up using the resizing tool thing in nVidia control panel to make my desktop something like 1842x1034 (or something). Not ideal, but eh.

 

Yeah, I know what you mean, bboy1, and ended up doing what Forge posted before this message.
I was wondering the same thing about overscanning though, and ended using a VGA cable to connect to my TV.

 

i had the same problem with my toshiba and gtx 260, just made sure that my picture size was set to native under my tvs "pic size" option, not natural or any of the other options

 

Yeah, just as everyone has said, you must set your TV to show the 100% image as is.

Depending on brand, the setting is named, mostly on Format or Screen Ratio:
"Just Scan" (mostly Samsung and LG TVs, under the screen ratio setting)
"Dot by dot" Most Toshibas
"Full 16:9" some dynnex, insignias etc

And then, in your notebook graphics option, you should have output on normal resolution as there are other options to counter overscan by resizing.