Custom Resolution Mosaic

Hi guys,
I have 4 3120x1280 displays connected to a RTX A5000. I need to set EDIDs but when creating the mosaic the maximum preset resolution is 2560x1440 and there doesn’t seem to be a way to add a custom one. The graphics card can definitely handle the custom resolution.

Any ideas ?

Thank you

Hi,

When you say you need to set the EDIDs, you are overriding the EDID from the display with one from a file? If the display is capable of 3120x1280, but it is not available in the EDID, you can create a custom resolution on the ‘Change Resolution’ page of the Nvidia Control Panel. Select Customize, and use the wizard to create the new resolution. You will then have to apply this new resolution to all the displays that are to be used in the Mosaic in order to make a mosaic with that resolution.

Hope that helps,
Steve

Hi Julie,
Why do you need to set/fake EDID, or create a custom resolution? Your screens should advertise this resolution in their EDID, if not, they tpyically can’t (properly) display the resolution…
For mosaic, ALL monitors/EDIDs/custom resolutions must be EACTLY the same… MUST be the same connectivity, tpyically struggle when mixing like DP and HDMI inputs…)
The Mosaic GUI offering lower than expected usually is because not all screens are identical, and this is the highest common denominator between all screens…
Can you give more details? Can you try if any 2 of the 3 screens can make a 2x1 Mosaic?
thanks
-Frank

LED Processors (Novastar MX6000 in this case) don’t allow you to specify a custom EDID above 4k but are capable of handling 8k. So it doesn’t advertise the resolution of the screen only the inputs and we need these to match the screen - so we we need to create a custom EDID. This works fine and we’ve got 3 x displays running at 6720 x 4320 (30hz) - Some applications though need a single display so I want to set mosaic up using these custom EDID’s we’ve created but they don’t appear in the Mosaic resolution selector - any suggestions

Hi James,
technically, if a sink does NOT correctly advertise its capabilities in its EDID, its an error/bug in the sink device…
For plug’n’play to work, it needs correct EDID data…
Faking an EDID (=using a SW/file EDID instead of the sink device provided EDID) can be a workaround for various cases, but its always a workaround for a different problem…

Mosaic only works with EXACTLY same modes per screen, so I gotta assume, your 3 screens may not have EXACTLY the same mode? Is it for sure, the EXACTLY same EDID has been provided to all 3 outputs of the GPU?
Mosaic shall explicitly only offer those resolutions (more explicit: timings, so including refreshrate and overall pixelclock) that are COMMON between all screens to be set into mosaic…

I have to assume, this is not the case in your setup…?

Beyond all the above, EDID 1.4 spec is only capable to ‘describe’ up to 4k (4095!!) pixels, for real 4k (4096) and above, it needs DisplayID, an extension of VESA EDID 1.4… Not sure what data (EDID or DisplayID ) you are using here…

regards
-Frank