benouz Posted November 14, 2015 Share Posted November 14, 2015 Hi everyone, after a long search i still don't find any solution I have a mac pro 2,1 under 10.9.4 (boot efi ti amo) my video card (radeon 6870) works well (with or without ATY_init.kext) but i can't use the full resolution of my ultra wide LG 25UM57 (2560*1080 60Hz) the max i can have is 1080p i have another monitor which uses dvi connection in 1080p and it's ok i use a display port to hdmi cable for the LG i've tried switchresx last version but still can't have full resolution, when i try 2560*1080 60Hz it doesn't work, i've tried a lot of frequencies between 50 and 60 Hz i've read the topic about 6870 and ultra wide but the settings didn't worked for me if anyone has an idea i would love it thank you Link to comment Share on other sites More sharing options...
blacksheep Posted November 18, 2015 Share Posted November 18, 2015 Nope, 6870 won't work with this resolution regardless of output type if it ends with HDMI. Link to comment Share on other sites More sharing options...
Recommended Posts