On Tue, Mar 30, 2021 at 06:49:57AM -0500, o1bigtenor via talk wrote:
> Hmmmmmmmmmmm - - - the card isn't current so finding specs isn't
> straightforward - - - but - - - -
> https://www.cnet.com/products/xfx-radeon-rx-550-graphics-card-radeon-rx-550-4-gb/
> gives a possible reason for the problem - - - - (one sales agency
> lists a 'Resolution and refresh rate' and for an RX6900XT said space
> is 7680x4320 or an 8k space) the gpu just isn't rated for a 7680x2180
> space.
>
> Here I have a 7680x3000 space - - - but - - - - I'm running 2 gpus - -
> - that has its own 'problems'!
>
> If I had to rebuild my system (not retaining any monitors) I would
> likely go to 3 - 4k monitors and maybe 3 moderate gpus or if finances
> were available - - - seldom are - - - 3 mid-upper end - - - - just
> checked and even an nvidiia 3090 (brand I will no longer consider)
> where there are 5 ports yet only 4 monitors are supported and a space
> of 7680x4320@60Hz - - - so a multi-gpu system is what I would need - -
> - and it works.

Why would you need 7680x4320@60Hz?  That's 8K.  3 4K monitors is less
than that.  Or is it that you want to run three 3K screens side by side?
I found a claim that the 980Ti at least was listed as supporting
11520x2160 to run three 4K screens so it would seem at least nvidia
cards that are current can do it.  I think you had to go to the 10
series to get HDMI 2.0b though, the 900 series probably required using
displayport to do it.

--
Len Sorensen
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