1280x1024 monitor refuses to go in to 1280x720 mode

[xtknight]

I have a Samsung SIR-T451 HDTV tuner (external) which has DVI and VGA out. With my old 17" Samsung 710T LCD, it worked perfectly. The tuner set the monitor to 1280x720 and the monitor cooperated.

Now with my ViewSonic VP930b, I put it on either the VGA or DVI port and neither will get the monitor in 1280x720. When using the 1080i switch on my HD tuner, the monitor displays "out of range", which is acceptable, though my old monitor automatically scaled it.

My question is...why can the monitor not go in to 1280x720 mode from the tuner? The monitor just completely blacks out, but the green power light is still on. The backlight is off. It doesn't say No Signal or Out of Range. Just a black screen and it's not going in to standby. Only the power and input buttons work in this "comatose" mode.

The VP930b works with 1280x960 but refuses to accept 1280x720 mode, instead the graphics card must do the scaling, and in that case it mentions 1280x1024 in the OSD. Talk about false advertising...or am I missing something?? It would be very nice to have any HD image on this monitor at this point.

P.S. Neither my old monitor or this one had 1280x720 as a mode in its EDID info.

 

[xtknight]

Bump. Any way to actually coerce this monitor in to 1280x720? I've tried several things with PowerStrip but it just ends up rounding up to 960. Hell, I don't care what it does, I just want some form of picture from my HD tuner if at all possible.

 

[Fox5]

The monitor doesn't support the 1280x720 res. If you hook it up via VGA instead of DVI it may work.

 

[xtknight]

Nope, neither work. Think flashing the monitor's EDID would fix that? 1280x720x60 is not out of range for the monitor. I do find it hard to believe the scaler chip doesn't support 1280x720. "HD-720p" is listed in the specifications.

 

[xtknight]

Bump. Anyone flashed their monitor firmware or EDID before? Would that make it accept the resolution?

 

[TheRyuu]

So why must it run at 1280x720?

Oh and just to let you know, I have the same monitor as you.

EDIT: and also I just put it in 1280x720 and it worked fine (scaled to native, but still 1280x720)....maby it's your hardware?

 

[xtknight]

Originally posted by: wizboy11
So why must it run at 1280x720?

Oh and just to let you know, I have the same monitor as you.

EDIT: and also I just put it in 1280x720 and it worked fine (scaled to native, but still 1280x720)....maby it's your hardware?

Nah...I'm connecting it from my external HD tuner. I can do 720 in Windows fine as well (but the graphics card scales it). It must be 720 because the HD resolution is 1280x720.