Custom Resolution Utility (CRU)

[leondf]

(01-16-2014 05:02 AM)ToastyX Wrote:  

(01-15-2014 06:09 PM)leondf Wrote:  I have a Radeon HD7850 2GB in a recently purchased system. I connected to a Seiki uhd tv (SE39UY04) via HDMI. I am running windows 8. When I right click on the desktop to check the resolution it says 3840x2160. However I have compared images of known size on different monitors and it is clear that the actual resolution is 1920x1080. In catalyst I see that there is a section for hd tvs and the resolution 3840x3160 is not listed. The highest resolution there is 1080. It is however listed in the general section. I'm guessing the card recognizes that it is a hd tv and restricts the resolution. Has anyone seen this? Is there a solution? Thanks.

I don't know what you mean. If the Windows screen resolution settings says 3840x2160, then it should be 3840x2160. The "Desktop Properties" in CCC should also say 3840x2160. The "HDTV Support" section is for adding missing TV resolutions, not for setting resolutions. What resolution does the TV say it's getting? It should say 3840x2160 @ 30 Hz.

Windows screen resolution on the Seiki does say 3840x2160 but I can guarentee that it is not. I have a HP monitor that does 2560x1600. I have displayed the same images on both monitors at 1:1 magnification. On HP monitor the images occupy less space on the screen. I measured the actual vertical size of the image on the screen and divided by the height of the screen. On the HP the ratio was about .52, on the Seiki it was about .76. To figure out the actual vertical resolution I computed (.52/.76)*1600 which is around 1090. So I reset my HP resolution to 1080 and voila, the two screens matched. It's not just the images, it is also the icons, etc. The Seiki is running 1080.