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when I select (3840x2160 16 bit) in the windows set up in tr4/tr5 its says "failed to set up directX" what do I need to do to play these games in 4k .. (i have win 8.1 and they work fine in 1080p) I provide images below
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Post edited January 03, 2015 by MARHVIN-XII
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Just because they work in 1080p, it does not mean it must work in 4K.
Maybe is the engine of tomb raider reaching his limit here!
There's a guy on Steam who has posted some Tomb Raider 1 pictures at 4K:

steamcommunity.com/sharedfiles/filedetails/?id=411923002

steamcommunity.com/sharedfiles/filedetails/?id=412017880

steamcommunity.com/sharedfiles/filedetails/?id=411923011

I've asked him how those were achieved. Awaiting response.
Post edited May 07, 2015 by Famicom
I guess, the person never responded.
According to wsgf you have to use dgVoodoo 2 to fix resolution limit.