I've had this problem before, and it's suddenly arisen again!! But cannot resolve it this time.
Basically I can have both screen working in duplicate mode, but if i try and extend my desktop onto the 2nd they both say out of range.
I have the lastest updates for my video card.
Any ideas????
Make sure the resolution and refresh rate for each monitor isn't set any higher than they can support before setting it to extended.
While in clone mode go into the resolution settings and set both monitors to a resolution lower than what they are currently running at (assuming they are different size screens, don't set them any higher than the smaller can support). Then try setting it to extended mode, and if that works adjust each monitor to the desired (or highest each will support) resolution.
Thier both Advent X19W.
I've had them working before.
And even in 800x600 resolution it wont extend they both say out of range.
If i switch the main display to the 2nd monitor it also says out of range
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