MacBook Pro external monitors

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Level 1

18 points

MacBook Pro external monitors

Hi all!

Recently was purchased my 1st MacBook but I use two extra monitors typically. So I have a usb-c dock (HP brand), I plug it into my MacBook Pro m3 pro and both monitors come on just fine but they mirror each other.

I can go into the display settings and it only shows 1 extra monitor, as if it doesn't recognize a 2nd extra monitor (although that monitor is on and just mirroring). The monitors are plugged into the docking station via display port

Any ideas on what I need to do? I'm sure its just me not knowing what I don't know ha ha, thanks for your time!!!

Posted on May 28, 2024 5:04 AM

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Answer 1

Top-ranking reply

Grant Bennet-Alder

Level 10

142,777 points

May 28, 2024 8:53 AM in response to Mattk8584

provided your Mac supports multiple external displays,

to support TWO displays on one cable out of a Mac, the PORT, the Cable, and the first device (Dock or Thunderbolt Display) must ALL be genuine Thunderbolt.

USB-C has only half the data pathways as ThunderBolt, and the Mac makes no apologies for NOT supporting two displays on one USB-C cable or Dock.

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Answer 2

Mattk8584 Author

Level 1

18 points

May 28, 2024 8:57 AM in response to Grant Bennet-Alder

HP stated it would work but obviously not return and get another one

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Answer 3

May 28, 2024 5:34 AM in response to Mattk8584

This could be an issue with the HP Display dock... If you've got 2 USB C port's, you'd could try using a extra HP display dock, then connect the 2nd display on the 2nd HP Display dock. See if its extend the display's, if so.. problem confirmed, ans issue solved.

I'm using 2 Samsung 24" display with USB-C/Display and HDMI.. LS24A600UCUXEN.

Both display are directly connected with my MBPro via USB-C, so 1 port for each monitor and works as extend display.

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Answer 4

May 28, 2024 5:17 AM in response to Mattk8584

I dont have any issues with extending displays with my i7 or i5 MBPro's.

How do you connect the displays? USB-C of HDMI on that HUB?

Try connecting each monitor via USB-C if possible.

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Answer 5

Mattk8584 Author

Level 1

18 points

May 28, 2024 5:21 AM in response to MNederhoff

Thanks for the reply I Connect the MacBook to hp display dock g5 using usb c then the dock has two display ports then the display cables to each monitor have tried one with hdmi and still just mirrors both monitors and picks them up as one monitor not two

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Answer 6

May 28, 2024 9:05 AM in response to Mattk8584

Mattk8584 wrote:

HP stated it would work but obviously not return and get another one

it is not deficient. it will work. Connect it to your Windows machine and it will work acceptably well.

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Answer 7

Mattk8584 Author

Level 1

18 points

May 28, 2024 9:08 AM in response to MNederhoff

thanks for reply so your Samsung monitors work with 2 cables both going in the MacBook and each monitor

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MacBook Pro external monitors

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