Custom Resolution Utility (CRU)

[leondf]

(01-17-2014 03:44 PM)ToastyX Wrote:  

(01-16-2014 01:46 PM)leondf Wrote:  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.

I don't know how that's possible. What resolution does the TV say it's getting? If you take a screen shot, is the image size 3840x2160?

If the Windows screen resolution settings says it's 3840x2160 and the TV says it's getting 3840x2160 and the screen shot is 3840x2160, then it should be running at 3840x2160. If images and text appear larger, it might have to do with the DPI settings and not the resolution.

If the video card were scaling 1920x1080 up to 3840x2160, then the Windows screen resolution settings would say 1920x1080 and the screen shot would be 1920x1080 while the TV would say 3840x2160.

If the video card were scaling 3840x2160 down to 1920x1080 (which normally doesn't happen), then the Windows screen resolution settings would say 3840x2160 and the screen shot would be 3840x2160 while the TV would say 1920x1080. If this is happening, did you patch the driver?

Thanks Toasty, you the man. I was unaware that in Windows you can customize the dpi through the control panel. There is a window that allows you to magnify the screen image. On my machine connected to my HP monitor the magnification was turned off. On the machine connected to my Seiki it was set to the maximum, effectively turning my uhd screen into 1920x1080 (while maintaining 3840x2160). When I turned off magnification on my Seiki, it looked fine. It seems to be some type of dpi virtualization. It is unclear to me if they consider magnification an increase or decrease in dpi. If the screen were treated as though an inch were an actual fixed physical length on the screen then decreasing dpi would magnify the image. If setting dpi defined the length of an inch, then the opposite would be true.

Leon