I have a Syntax Olevia LT37HVE 37" LCD TV. I just built a HTPC using an MSI K8NGM2-FID board with GeForce 6150 chipset, but I experience this exact same problem with other nvidia cards as well.
I'm using a DVI cable to connect, and I want to use the native resolution of 1360x768.
What I have come to realize, is that the EDID information in this TV just plain sucks. It doesnt describe this native resolution, and worse sets the maximum horizontal resolution to be 1280. I did try to overwrite the EDID on the tv as well, but its write-protected.. so thats out.
My laptop has an ATI adapter, and using PowerStrip i was able to set my custom resolution of 1360x768 with all my timings. Works beautifully. Disregards the EDID like I want. Nvidia cards however are another story.
Using a GeForce FX 5200 on another machine.. I was able to add my custom resolution, but not able to set the timings I want. Plus it set itself up as a scrolling resolution (I dont know the proper name for this). But basically it was actually a 1280x768 which panned to get 1360 pixels horizontal. So it still wasnt a 1:1 pixel mapping.
On the HTPC, I am not even able to add a custom resolution for some reason. Nor can I get to the "advanced timings options" button in PowerStrip. I was however able to tweak the timings for the 1280x720 resolution in the nvidia control panel. I set the active "front-end" and "back-end" pixels to be 1360x768, and it worked... sorta. The LCD regonizes the resolution as 1360x768 and the pixels are 1-1 mapped, but the pixels past 1280x720 are all messed up. Which is to be expected, but this is the closest I've gotten to what I want. (I know I'm not explaining this very well, but I dont know how else to)
When I try to add a custom resolution in the nvidia control panel, it simply tells me: The custom resolution cannot be added. But it lets me click add and type in what i want first! I even created my own monitor .inf file with all my desired settings, but still no go.
I found a page which describes this known limitation in nvidia's drivers. Apparently nvidia drivers are designed for "rigid enforcement" of EDID settings, and they know about this problem. Which sounds to me like theyre saying youre SOL buddy.
So for lack of nothing better to try... I was thinking maybe to cut pin 7 (DDC) out of my DVI cable which transmits the EDID, but if there is something I can do instead settings wise... I would totally rather. Would i be wasting my time trying this? (And my overly expensive DVI cable) Does nvidia's drivers choke at a total absence of EDID?
I'm using a DVI cable to connect, and I want to use the native resolution of 1360x768.
What I have come to realize, is that the EDID information in this TV just plain sucks. It doesnt describe this native resolution, and worse sets the maximum horizontal resolution to be 1280. I did try to overwrite the EDID on the tv as well, but its write-protected.. so thats out.
My laptop has an ATI adapter, and using PowerStrip i was able to set my custom resolution of 1360x768 with all my timings. Works beautifully. Disregards the EDID like I want. Nvidia cards however are another story.
Using a GeForce FX 5200 on another machine.. I was able to add my custom resolution, but not able to set the timings I want. Plus it set itself up as a scrolling resolution (I dont know the proper name for this). But basically it was actually a 1280x768 which panned to get 1360 pixels horizontal. So it still wasnt a 1:1 pixel mapping.
On the HTPC, I am not even able to add a custom resolution for some reason. Nor can I get to the "advanced timings options" button in PowerStrip. I was however able to tweak the timings for the 1280x720 resolution in the nvidia control panel. I set the active "front-end" and "back-end" pixels to be 1360x768, and it worked... sorta. The LCD regonizes the resolution as 1360x768 and the pixels are 1-1 mapped, but the pixels past 1280x720 are all messed up. Which is to be expected, but this is the closest I've gotten to what I want. (I know I'm not explaining this very well, but I dont know how else to)
When I try to add a custom resolution in the nvidia control panel, it simply tells me: The custom resolution cannot be added. But it lets me click add and type in what i want first! I even created my own monitor .inf file with all my desired settings, but still no go.
I found a page which describes this known limitation in nvidia's drivers. Apparently nvidia drivers are designed for "rigid enforcement" of EDID settings, and they know about this problem. Which sounds to me like theyre saying youre SOL buddy.
So for lack of nothing better to try... I was thinking maybe to cut pin 7 (DDC) out of my DVI cable which transmits the EDID, but if there is something I can do instead settings wise... I would totally rather. Would i be wasting my time trying this? (And my overly expensive DVI cable) Does nvidia's drivers choke at a total absence of EDID?
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