I recently purchased an ultra wide monitor, with a native resolution of 2560×1080.
This is great but it's only working with Windows !
Apple is limiting HDMI resolution to be no more than 1920×1080, for no reason at all. I read everywhere than I need to buy whatever cable or adapter and to use display port, but I just can't.
I also tried SwitchResX but same problem, resolutions over 1920×1080 are not available.
So I searched for a solution, and I found something interesting there : https://discussions.apple.com/message/25831860#25831860
It seems that increasing the framebuffer size will set bigger resolution available.
But I can't find any info about this with an Intel HD 3000. Is someone have any clue about where to begin ? I guess it's happenning in AppleIntelSNBGraphics but that file is quite big…
Another question I'm having is, is this still the case on Yosemite ? Because I'm on Mavericks and I could do the update if that might solve this issue.
Thank you.
Best Answer
After some digging, I finally found a solution :