Why is my 1680 x 1050 lcd monitor doesnt work with the STB DVI

[impro]

I know this is not sage related and I apologies.
Why my 1680 x 1050 lcd monitor doesnt work with the STB DVI

[Conejo]

The display manual should say what type of devices are compatible. Usually a STB will not correctly send data to a device that is not HDCP compliant. Most wide-screen display monitors are destined for computers and have the Digital Rights Management (DRM) stuff left off to reduce costs.

[impro]

My monitor is Samsung 226bw and It has HDCP.
My STB is SA3250hd with COX Las Vegas

[Conejo]

a Google Search found the following believable explanation

Connect LCD monitor to Digital HD Cable box? on the Video Help forum.

'EDdv':
-HDMI out from a cable box is 480i, 480p, 720p, 1080i @59.94 hz. normally.
-Computer monitors accept only DVI-D VESA resolutions and provide scaling technology only. A computer monitor will not accept an interlace input. It would be possible to build a computer monitor that directly accepts 720x480p, or 1280x720p but most don't.
-Any DVI-D/HDMI input has something called the port ROM. This defines exactly what the port will accept and rejects everything else.

+So if my monitor's DVI "port rom" rejects an HD Cable box's signal, then I would get no images and hence the blank screen?
-Yes. It might work for 480p. They won't get sued for that. 720p might work.

EDdv goes on to talk about connecting a 226bw at 480p or 720p *if you can enter and set that in the configuration screen of the cable box*

[impro]

I did that even before I read your post.
Cox did not want to give me the service menu combination.
They wanted to send a technician.
I found it here.
http://www.digitalhome.ca/forum/showthread.php?t=17719
Thanks anyway

[impro]

BTW it looks fine.
Not as well as my QAM Sage but pretty close.