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Monitor not filling the full screen area on digital input
http://www.x404.co.uk/forum/viewtopic.php?f=4&t=12195		 Page 1 of 1
Author:  phantombudgie [ Fri Jan 21, 2011 8:51 pm ]
Post subject:  Monitor not filling the full screen area on digital input
Hi,

I've recently upgraded my monitor to 22" of 1080p goodness. I'm running it on analog input through a D->A converter on a HD 6850 digital output. This works OK.

When I try a digital input to the monitor (DVI or HDMI), it displays the picture with about 1 inch of black pixels around the outside edge (i.e. a 20" centred image) with everything looking horrible because it's slightly downscaled.

There are almost no picture adjustments on the monitor when using digital input (Samsung BX2231) and I've installed the digital driver from the CD. Changing the screen resolution makes the image on the display smaller (even bigger black border).

Any ideas?
Author:  Linux_User [ Fri Jan 21, 2011 8:57 pm ]
Post subject:  Re: Monitor not filling the full screen area on digital input
I've seen this happen to some televisions (but never a monitor) using the HDMI input, but I I always fixed it by using VGA instead.

My Samsung comes with an "Auto Adjust" feature (SyncMaster P2450), does yours have a similar functionality?
Author:  rustybucket [ Fri Jan 21, 2011 9:18 pm ]
Post subject:  Re: Monitor not filling the full screen area on digital input
You tried setting the PC/AV mode to AV?
Author:  phantombudgie [ Fri Jan 21, 2011 10:36 pm ]
Post subject:  Re: Monitor not filling the full screen area on digital input
Linux_User wrote:
I've seen this happen to some televisions (but never a monitor) using the HDMI input, but I I always fixed it by using VGA instead.

My Samsung comes with an "Auto Adjust" feature (SyncMaster P2450), does yours have a similar functionality?


It only auto-adjusts the analog signal :(

I can use the VGA adapter for now but I'm annoyed there's a problem with the digital input.
Author:  phantombudgie [ Fri Jan 21, 2011 10:37 pm ]
Post subject:  Re: Monitor not filling the full screen area on digital input
rustybucket wrote:
You tried setting the PC/AV mode to AV?


I'm going to put my hand up and say I'm not sure what you mean by that :oops:
Author:  rustybucket [ Fri Jan 21, 2011 11:25 pm ]
Post subject:  Re: Monitor not filling the full screen area on digital input
phantombudgie wrote:
rustybucket wrote:
You tried setting the PC/AV mode to AV?


I'm going to put my hand up and say I'm not sure what you mean by that :oops:

It's in the manual.
Author:  phantombudgie [ Fri Jan 21, 2011 11:33 pm ]
Post subject:  Re: Monitor not filling the full screen area on digital input
Quote:
It's in the manual.

I'd better RTF'ing M then :oops:
Author:  rustybucket [ Fri Jan 21, 2011 11:36 pm ]
Post subject:  Re: Monitor not filling the full screen area on digital input
AFAI understand it, PC mode is for when you want to restrict picture control to the computer. AV mode seems to be for when you want to control it at the screen.

phantombudgie wrote:
Quote:
It's in the manual.

I'd better RTF'ing M then :oops:

Engineers read the manual; Technicians get told what's in it.

;)
Author:  phantombudgie [ Fri Jan 21, 2011 11:47 pm ]
Post subject:  Re: Monitor not filling the full screen area on digital input
Interestingly, AV mode made the picture worse. The colour saturation is now higher (no windows picture control, as you said), and the black edge of undisplayed screen area around the outside of the picture is now only half an inch wide :?
Author:  rustybucket [ Fri Jan 21, 2011 11:56 pm ]
Post subject:  Re: Monitor not filling the full screen area on digital input
Weird.

I thought AV mode would allow you to adjust the picture size - that seems to be what the manual says. :?
Author:  phantombudgie [ Sat Jan 22, 2011 12:21 am ]
Post subject:  Re: Monitor not filling the full screen area on digital input
You would think so - you get the choice of 4:3 (squarish picture filling middle of screen and touching the top and bottom edges), 16:9 (black gap around all edges), or "screen fit" (lie: same as 16:9) :roll:

You can move the position of the picture (slightly), and the position of the menu. Grr.

BTW never, ever buy a panel with touch sensitive buttons :evil: They register 1 in 5 touches, I have to keep pausing to wait for enough static to get them to detect me.

Thanks for your patience, but either I'm failing some sort of IQ threshold or it's got a more serious problem. Sod it. *goes back to VGA*
Author:  rustybucket [ Sat Jan 22, 2011 12:31 am ]
Post subject:  Re: Monitor not filling the full screen area on digital input
Not to ask the obvious but...

... is your resolution set to 1920x1080 @ 60Hz ?
Author:  phantombudgie [ Sat Jan 22, 2011 12:35 am ]
Post subject:  Re: Monitor not filling the full screen area on digital input
Yes, through Win7 Screen Resolution settings. I suspect I'm missing something of similar obviousness though!
Author:  rustybucket [ Sat Jan 22, 2011 12:40 am ]
Post subject:  Re: Monitor not filling the full screen area on digital input
It does sound like something small, fiddly and f***-abouty.

You could always reset to factory defaults and start again from blank.
Author:  okenobi [ Sat Jan 22, 2011 9:31 am ]
Post subject:  Re: Monitor not filling the full screen area on digital input
If it's an ATi card, check the "Overscan" settings in display properties. I suspect nVidia cards will have a similar option somewhere.

As Linux says, TVs get this all the time, but I've never had it on a monitor. Anyway the above is how I resolved it on my TV with the same symptoms.
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