Screen resolution

[Oldsmobile_Mike]

Hello,
I have a X1000 with a Radeon HD 6670 card. A notification pop up to tell me for best results to set the resolution to 2560 x 1440. I have a 27' screen that is 2560 x 1440 but I do not see any sizes above 1920 x 1080. What do I do?

That's probably your monitor giving you that notification, not AmigaOS, right?  Can your video card even output that high?  Are you using a dual-link DVI cable?

[Oldsmobile_Mike]

See "example display modes (single link)" and "example display modes (dual link)" on the Wiki:

http://en.wikipedia.org/wiki/Digital_Visual_Interface

I, too, had this problem with an ultra-high resolution monitor similar to yours, until I switched to the higher bandwidth cable.  Granted, this was on a PC, using a 6570 video card.  I don't know if the Amiga screenmodes even support resolutions that high?  Wait for someone else with an X1000 to chime in.  I just know about DVI cables.