Dell U3415W UltraWide Monitor 3440x1440 @60Hz Problems

[AppleMann]

Hello! My current machine is a skylake i7 paired with an ASUS GTX 950

Yesterday I purchased my first 21:9 monitor for $500 off craigslist.
When running Windows 10 I get 60Hz with full resolution through HDMI
When running OS X 10.11 it recognizes as 30Hz full res in preferences. In about this mac it recognizes as 1080p

30Hz is unbearable

 

[slim.jim]

Hello! My current machine is a skylake i7 paired with an ASUS GTX 950

Yesterday I purchased my first 21:9 monitor for $500 off craigslist.
When running Windows 10 I get 60Hz with full resolution through HDMI
When running OS X 10.11 it recognizes as 30Hz full res in preferences. In about this mac it recognizes as 1080p

30Hz is unbearable

You need to use the Pixel Clock Patch

 

[AppleMann]

You need to use the Pixel Clock Patch

Thanks a lot! worked like a charm