Is it possible to use a 2010 iMac running High Sierra as a display in Target Display Mode with 2010 Mac Pro running OCLP Sequoia or it has to be old OS?
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2010 iMac Target Display Mode with 2010 Mac Pro Newer OS
- Thread starter MadMax65
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Apple says High Sierra or earlier:
support.apple.com
Use your iMac as a display with target display mode – Apple Support (UK)
Target display mode is a feature available with certain older Mac models.
I saw that but was hoping there was a way around it especially since we're able to run newer OS these days with OCLP vs Apple not supportingApple says High Sierra or earlier:
Use your iMac as a display with target display mode – Apple Support (UK)
Target display mode is a feature available with certain older Mac models.
redheeler
macrumors G3
If the 2010 Mac Pro is the one running Sequoia, then yes.
If the 2010 iMac is the one running Sequoia, then no.
Wasn't clear which is the case from your post.
edit: the support article says "the other Mac that you're connecting it to must have been introduced in 2019 or earlier and have macOS Catalina or earlier installed" but this isn't actually true for the 2010 iMac as newer versions treat it like a generic DisplayPort display which works fine. The 2010 iMac itself does need to be on High Sierra or earlier.
If the 2010 iMac is the one running Sequoia, then no.
Wasn't clear which is the case from your post.
edit: the support article says "the other Mac that you're connecting it to must have been introduced in 2019 or earlier and have macOS Catalina or earlier installed" but this isn't actually true for the 2010 iMac as newer versions treat it like a generic DisplayPort display which works fine. The 2010 iMac itself does need to be on High Sierra or earlier.
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Apologies, correct if I decide to get one then the 2010 iMac would be running the old OS and my 2010 Mac Pro would be running OCLP Sequoia.
Is it as straight forward as just connecting using a display port to mini display port cable?
redheeler
macrumors G3
Yes. The 2010 iMac was the easiest to use in TDM for this reason!
On a modern Mac you need an adapter to go from USB-C to DisplayPort or Mini DisplayPort, but with the correct adapter it'll work.
My 2010 Mac Pro has a SAPPHIRE Pulse Radeon RX 580 8GB GDDR5 GPU has two DisplayPort 1.4 outputs, two HDMI 2.0b outputs, and one DVI-D output.
I believe DisplayPort to Mini DisplayPort is what I'll need to use.