why do DVI cables support lower refresh rates than analog cables?

I upgraded my cable on my lcd monitor. I used to be able to run 1280x1024 in 75hz. how it wont go above 60. if i want 75hz i need to go down to 1138x7whatever (the weird one). Anyone know why?

just shooting in the drak right now, but did you check to make sure that the monitor drivers are installed since changing the cable?

its all dependent on the monitor. In other words, windows is only going to show the settings that the specific monitor has.

If you changed the signal, your monitor is running in a different mode... so is isnt surprising that signal related settings are different.


also, I dont think LCD panels have a refresh rate. most lcds have an optimal resolution.

Basically just run it at that and thats as crisp and brilliant as it will look.

I dont know that much about it though... just my 2 cents

LCDs have a refresh rate. They have to be sent the information from the video card a certain rate, like CRTs, usually at 60hz or 75hz (aka 1 refresh/16.6ms or 1 refresh/13.3ms). Higer refresh rate lets you have a higher maximum framerate, and so a bit more smooth picture. The pixels stay on though, so it doesn't affect "flickering" like on CRTs.

And I have no idea about the problem :shrug: