HDMI Input not filling monitor in applications

I've just built a new computer with Windows 7 and a gigabyte brand radeon HD4890 and have been having the same issue as some other users with regard to the over/underscan.

I managed to correct the inch or so of unfilled space when displaying the desktop by using the under/overscan utility in CCC (thanks to info on this forum ^_^) but found that the problem still exists when I ran my first full-screen applications.

I installed, updated, and ran Spore: Galactic Adventures to take a look at how my system was going to handle everything, but found that the dreaded inch was back. The really odd thing was that when I switched Spore to windowed mode, the inch had gone and I could maximise to full-screen. Of course, the window header and taskbar kind of detract from the game, but this isn't necessarily an issue for Spore (which can hardly be described as immersive).

I am, however, concerned that this issue may pop up in other games where the window header and taskbar will detract from the game (if it operates well in windowed mode at all).

I plan on investigating further later today, possibly in the direction of motherboard and chipset drivers, but also testing with other games. Just wondering if anyone had any thoughts on what could be going wrong here.

Cheers

See if the tv itself has an underscan/overscan setting.

If so, use that and don't use any overscan in CCC at all.

Is this the web site you downloaded From?
Drivers & Support | GAME.AMD.COM

Also"
Try ccleaner for the uninstall, if that does help, try driver sweeper from guru3d.

Guru3D - Driver Sweeper (Setup) download from Guru3D.com

uninstall all ati product that is possible from uninstall panel, install driver sweeper, boot into safe mode, run driver sweeper, check the box for ATI run the cleaner, it will ask to reboot after words, boot into normal windows, run ccleaner "clean & registry cleaner in ccleaner" reboot.

Catalyst tweakguide: TweakGuides.com - ATI Catalyst Tweak Guide

@torrentg - My monitor (AOC 2434pw) doesn't seem to allow that as an option, and the HDMI input doesn't allow me to stretch or refit the screen as I please (which I'm told is typical of digital input).

@reghakr - Yup, got the catalyst center and drivers straight form ATI, which helped solver the original overscan problem on the desktop. I did perform your sequence, though - cleaned everything out then reinstalled the drivers. I did note that the maximum reported refresh rate has increased (which is nice) but I've still got the black bars in the application I mentioned.

I did note also another forum post elsewhere on image scaling and have double checked under CCC that image scaling for this display is set to "Scale image to full panel size" and still no change.

Kind of at a loss as to what's going on here, given how everything's fine while on the desktop and only seems to hiccup during games. If anyone has any further suggestions, that'd be super.

I can'y berify yjis............

I had a similar problem with my HD 4850 when switching from vista to win7.

I actually found a fix inside the ATI Catalyst Control Center. Open CCC and somewhere in the display configuration for your monitor ensure that there is no over/underscan.

For some reason my CCC had a small degree of underscan turned on which led to the black bars you mentioned.

A word of caution, when you start your games up and pick the native resolution the underscan may show up again.

Just turn on any options for windowed mode and/or full screen and then turn off windowed mode again and the black bars should go away. Hope that helps!

Thanks for that, but doesn't seem to set me right, either.

I tried as you mentioned, both while running in full screen and windowed, and in both cases the CCC showed underscaling at 0%.

I'm thinking I should probably query the ATI support center to see what's going on (hopefully it's a known issue that can be resolved easily)

Just as an update, I tried running a few more programs, and the black-space disappears if I dial down the resolution to 1680x1050 on any game that's displaying them.

A game that runs in windowed mode with borders and headers removed (such as WoW) can run at full native resolution fine, but only in such a windowed mode.

Really weird that I can't run other games at full native resolution on the 4890, which is something I will have to chase up at some point, but this seems to be the quickest (and perhaps dirtiest) fix I can figure out at the moment.