HDMI output options

Discussion in 'Mac mini' started by carldpatt, Jun 30, 2017.

  1. carldpatt macrumors newbie

    carldpatt

    Joined:
    Jun 30, 2017
    Location:
    Uk
    #1
    Hi. I realise this subject has been done to death however im wondering if soneone can offer any clarity. Using an HDMI will a 2014 mac mini output ANY resolutions at 60hz? Even at lower resolutions I only
    seem to be getting 30hz.

    Thanks
     
  2. treekram macrumors 65816

    Joined:
    Nov 9, 2015
    Location:
    Honolulu HI
    #2
    People here on this forum have reported getting 2560x1440 at 60Hz using HDMI on the 2014 Mini. I use a 1920x1080 with a HDMI monitor at 60Hz on my 2014 Mini with no problem. Any higher resolution will be iffy in terms of the refresh rate (the official Intel max figure is 3280x2000 at 60Hz, but Apple may not adhere to that). What's the resolution you're trying to achieve? If you're trying 2560x1440 or less, what monitor are you using? The base 2014 Mini had the HD5000 GPU, the others had the Iris 5100 but I don't see any difference in terms of the max HDMI resolution/refresh capabilities.

    Maybe your cable? Have you tested it with other computer/monitors?
     
  3. carldpatt thread starter macrumors newbie

    carldpatt

    Joined:
    Jun 30, 2017
    Location:
    Uk
    #3

    Even 1920 would be fine but 2560 would be ideal. I dont think its my monitior (LG 27UD68P)thats the problem. Maybe youre right and its sonething as simple as the HDMI cable thats the problem. Yeah Ive tried my windows laptop (with the same HDMI cable) and get 1920 at 60hz no problems.
    --- Post Merged, Jul 1, 2017 ---

    Im at work at the minute but will leave another more thorough reply tomorrow or monday. Thanks for taking the time to reply
     
  4. treekram macrumors 65816

    Joined:
    Nov 9, 2015
    Location:
    Honolulu HI
    #4
    The LG 27UD68P is a 4K (UHD) monitor and unfortunately Apple officially only supports 30Hz at it's native resolution. People using SwitchResX have reported that they get up to 50Hz. Coincidentally, BestBuy currently has a sale on the LG 27UD69-W and I went down to take a look. As I thought it might, it seems like it would be too small to run at 3840x2160. I think your best bet would be to run it in Retina mode (so you would get 1920x1080 but it's pixel doubled) using SwitchResX to run at 50Hz. I haven't used SwitchResX so I can't vouch for how well it works. Your other alternative would be to try a scaled resolution to try 2560x1440. Since your cable works with another computer, it's likely OK.
     
  5. carldpatt thread starter macrumors newbie

    carldpatt

    Joined:
    Jun 30, 2017
    Location:
    Uk
    #5
    Sorry about the untimely reply! Again thanks for taking the time to reply. So, does this seem right?

    Display port:
    1080p is 60hz
    Anything higher is 30hz

    HDMI:
    3840x2160 at 24hz
    1920x1080 at 30hz
    1504x846 at 30hz
    1152x648 at 30
    The refresh rates (for HDMI) Ive mentioned are an estimate as nowhere actually states the current actual refresh rate however display port does.
    There doesent even seem to be any option to switch to 2560x1440 anywhere in the system. This is confusing as I read other users achieving 2560x1440 on the same system.

    Puzzled!
     

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