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All lines of MacBook, MacBook Air and MacBook Pro portable computers.

1 vote

Is it possible to force sidecar over bluetooth instead of Wi-FI?

No, this is not supported; you'll need Wi-Fi to use Sidecar wirelessly. Bluetooth also generally lacks the required bandwidth for monitor-quality video streaming, as it maxes out at 50 Mbps (even for …
JMY1000's user avatar
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0 votes
Accepted

MacBook Air M1 connected to Dell U2723QE: Sound output yes, sound input no

The U2723QE does not support a microphone input via the audio jack, and it does not have a built-in microphone. You'll need to use a USB microphone or plug another microphone directly into your MacBoo …
JMY1000's user avatar
  • 5,342
2 votes
Accepted

When mirroring my Macbook Pro with an ultra-wide external display, can the resolution be set...

Yes. When mirroring, you can choose which display to "optimize" for.
JMY1000's user avatar
  • 5,342
2 votes

With a 2019 MBP, are there any benefits to driving a 4K display via Displayport (1.4) vs HDM...

No Freesync sometimes isn't supported over HDMI, but this monitor supports it. On top of that, macOS doesn't support Freesync anyways. USB-C can "natively" use "normal" DisplayPort and HDMI in its a …
JMY1000's user avatar
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1 vote
Accepted

What are the dimensions of the head of a thunderbolt cable?

Thunderbolt 1 and 2: (source: staticworld.net) 7.4mmx4.5mm male, 8.3x5.4mm female Thunderbolt 3: 8.3mmx2.5mm male
Glorfindel's user avatar
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2 votes
Accepted

Has Apple ditched the enter key symbol in their mac devices international keyboard?

Can't confirm 100% since I don't have a keyboard with an Arabic physical layout on hand, but for a US keyboard on a 2018 tMBP set to the Arabic layout, I can confirm that return/enter functions as nor …
JMY1000's user avatar
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0 votes

Finding suitable SSD for my MacBook Air

You can upgrade the storage in your MacBook Air–but it's more difficult than your average notebook. Your MacBook Air's SSD uses SATA with a proprietary 7+17 connector. While in theory it would be pos …
JMY1000's user avatar
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1 vote

Do All of the Macbook Pros Have That GPU-Kernel Panic Issue?

AFAIK there have been no widespread reports of kernel panics due to GPU related issues on 2017 MacBook Pro 15", and I doubt there are any. There's always some quantity that have hardware issues, but n …
JMY1000's user avatar
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1 vote
Accepted

How to "Optimize for" an external monitor, downscale resolution but supersample for clear text?

I think you're misusing the term supersampling. Supersampling is a spatial anti-aliasing method, i.e. a method used to remove aliasing (jagged and pixelated edges, colloquially known as "jaggies") …
JMY1000's user avatar
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6 votes
Accepted

Can macOS operate/output video at 144 Hz screen refresh rate?

Yes, it should work out of the box given the right cable and a new enough MacBook (some MacBooks will need a 3rd party patch.) If you're still having issues (which you shouldn't), you can try using Sw …
JMY1000's user avatar
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2 votes

MacBook Pro Touch Bar pops and right speaker gets disabled

I had this issue on a 15" 2017 MacBook Pro, three times over the course of roughly three months. Apple issued two top case replacements, which includes both speakers–yet each time, a speaker would fa …
JMY1000's user avatar
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3 votes

Green screen while starting up MacBook Pro

Seems like a hardware issue, probably GPU. Run Apple Diagnostics and something GPU heavy like Unigine Heaven and see if it exhibits any issues. In any case, I'd say take it into an Apple store and exp …
JMY1000's user avatar
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6 votes

how to turn off my keyboard on my macbook?

I would recommend Karabiner Elements. It's the successor to Karabiner, and works on macOS Sierra. There's an option under the devices menu to disable the build-in keyboard while another keyboard is se …
JMY1000's user avatar
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2 votes
Accepted

Finding Peak Memory Bandwidth on MacBook Pro

Your 2016 MacBook, depending on the model, uses either 1866 or 2133 DDR3 memory (1866 is used by the non-touchbar model, the others use 2133.) This number refers to the data rate of the memory, in MT …
JMY1000's user avatar
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2 votes

What kind of input Jack can work on a MacBook Pro (15-inch, Mid 2012) audio input port?

Any line-level input should work with the 15-inch Mid 2012 MacBook Pro (the MBPr is slightly different.) Simply insert it into the audio in port on your MacBook Pro using a 3.5mm jack. Line level si …
JMY1000's user avatar
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