feiguan

Q: macOS Sierra can't detect 2560 x 1440 monitor resolution correctly

I have just updated my MacBook Pro(Retina, Mid 2012) to macOS Sierra. I'm excited about the new features. However, I found that the resolution of my external BenQ GW2765 monitor is not detected correctly by macOS. BenQ GW2765 is a 2560 x 1440 capable monitor. I configured its resolution as 2560 x 1440 in EI Capitan but can't do it in macOS Sierra anymore. Does anyone have the same issue as I do? Is this a bug in macOS Sierra?

Screen Shot 2016-09-22 at 12.26.48 AM.pngScreen Shot 2016-09-22 at 12.26.36 AM.png

Screen Shot 2016-09-22 at 12.29.15 AM.png

MacBook Pro (Retina, Mid 2012), macOS Sierra (10.12), null

Posted on Sep 22, 2016 12:46 AM

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Q: macOS Sierra can't detect 2560 x 1440 monitor resolution correctly

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  • by DDOX4300,

    DDOX4300 DDOX4300 Oct 14, 2016 3:23 PM in response to Luis Sequeira1
    Level 1 (12 points)
    Mac OS X
    Oct 14, 2016 3:23 PM in response to Luis Sequeira1

    No, lowering the refresh rate does not open up any additional resolutions with the BenQ2765 monitors via HDMI to HDMI

  • by DDOX4300,

    DDOX4300 DDOX4300 Oct 14, 2016 3:27 PM in response to ch-sh
    Level 1 (12 points)
    Mac OS X
    Oct 14, 2016 3:27 PM in response to ch-sh

    I have the same monitors and the same problem. Do you also get a weird error message when booting up with both external monitors plugged in?....mine just gets stuck in an endless starting up, error, reboot and repeat cycle..unless I do the reboot with the monitors not connected and then plug them inline after OSX Sierra is up and running and all happy.

  • by fredchag,

    fredchag fredchag Oct 18, 2016 3:32 AM in response to feiguan
    Level 1 (4 points)
    Oct 18, 2016 3:32 AM in response to feiguan

    Hello,

    I just updated to 10.12.1 Beta 4 and it solved this issue.

    Maybe you should register to the Beta program.. it's free.

     

    Cheers,

     

    Fred

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