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second monitor

  1. RockstarJ

    My MacBook pro 2017 runs VERY slow with a second monitor

    I am not sure if Apple updates are causing my laptop to not longer play well with a second monitor or if the newer quality of monitors doesn't allow my MacBook pro (2017) to work properly. I have spend over a year trying to get this issue fixed. Essentially, if I have a second monitor running...
  2. shinyheadmusic

    Music and Mail window unexpected behavior with second monitor on Big Sur 11.4

    On my 2019 27" iMac, I have a Dell 24" second monitor connected via a USB 3 hub > HDMI. I like to keep Mail and Music on that second display, however two unexpected behaviors occur regularly: The Music window shifts back to the main iMac display frequently - although I can't make it happen by...
  3. S

    Using Mid-2011 Mac as 2nd Display for Mid-2017 iMac w/Mohave

    I found many posts about this online and in this forum, but not for my configuration, which seems to matter. I want to use a mid-2011 Mac as a 2nd display for my mid-2017 Mac. • Main Mac: iMac, Mid-2017, Core i5, 27-inch, 3.8, Mohave 10.14.4, Thunderbolt 3 (USB-C) • 2nd Mac: Mac, Mid-2011, Core...
  4. nemoryoliver

    Will the iMac 5k + 4k Monitor thru Mini Display Port work at 60Hz Full Resolution?

    Hi guys! I wanted a 2nd monitor for my iMac 27" 2019, but don't want to spend much on a thunderbolt/usb-c monitor. I am looking at this Samsung Monitor LU28E590D5 https://s.lazada.com.ph/s.upKN it's the cheapest 4k monitor with IPS panel. I'm hoping I can make it work at full 4k resolution @...
  5. Toby B

    How can I get 2 monitors working with Mac Pro (Mavericks)?

    Hi guys, I have an older DIY Mac Pro and I am running Mavericks. I have recently tried to use a second monitor but the OS doesn't seem to like it. The main monitor is connected by DVI, and the second one is connected by VGA. Looking in System Preferences I cannot see an option in 'Displays'...
  6. T

    Mac Pro won't run two 30-inch monitors at 2560 X 1600

    I have a Mac Pro 2.8 mid-2010/Nehalam with a Radeon HD 5770 video card in it (the stock video card for this model) and I’m trying to run two Dell 30-inch U3014 monitors with it. This card should easily be able to run the two 30-inch monitors at 2560 X 1600. In fact, I had these two 30-inch...
  7. RDubbs

    Use iMac as Second Monitor

    Good morning, I am trying to get a iMac (21.5-inch late 2009) connected to a MacBook Pro (Retina, 15-inch, Mid 2014) to use as it's second monitor. The iMac is pretty old. I have bought 4 cables but am not getting connectivity with any combo. Apple Thunderbolt Cable (2 m) Apple Mini...
  8. NOV

    Second monitor (LG) with new iMac

    Hi there, recently I received my new iMac 27" and have some trouble installing a secondary monitor (LG 29EA93). This was already difficult with my previous Mac, but with adapted settings through SwitchResX it worked flawlessly. First I used SwitchResX after initially setting up the iMac and I...