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Warning: New MacBook Pro M4 Pro & Old Monitor


 

A friend of mine just bought a brand new 14” MacBook Pro M4 Pro 24 GB / 2 TB to replace his very old “black chimney” Mac Pro. Monterey didn’t do it for him anymore.

But OK. new MacBook pro arrived and we transferred data and stuff and everything is hunky dory, except his 30” Cinema Display HD (Model A1083) is either black or “patterned”. See image.




It does look suspiciously like a bad cable, yes? Or mayle a bad DVI-to-USB-C adapter? Or a bad DVI-to-HDMI adapter, yes?

No!

We have cross-tested all adapters with my MacBook Pro M2 Max - and they work.

We have also tested his new MacBook Pro M4 Pro with my 23” Apple Cinema Display HD (Model A1082) and that works fine too.

Apple support has given up … they suggest reinstalling the system (which did not work) or accepting that … and I quote … “the chips in the MacBook Pro M4 and the Cinema Display may not be compatible” …

Which I find weird, since it works with my 23” Cinema Display HD monitor … but maybe there’s different electronics in a 23” A 1082 and the 30” A 1083 … who knows

Anyways … now you are warned, if you have one of these monitors and you are considerering a new M4 Pro MacBook Pro.

Also: Recommendations for a good and affordable replacement for the 30” Cinemad Display are very welcome …


:-)

Peter

--------------------------------

?? Greenland is not for sale!


 

On Apr 4, 2025, at 3:14 AM, Peter Rasmusen <peter@...> wrote:

Recommendations for a good and affordable replacement for the 30” Cinemad Display are very welcome …
All of the following are 27-inch IPS 4K monitors...

If you don't mind a Chinese monitor, check out these amazing deals:

YEYIAN ODRAZ 27” IPS Panel HDR 4K UHD Slim Bezel PC Gaming Monitor 3840x2160, 1 Billion Colors, Low Blue, 300cd/m2, 1000:1, 60Hz, 5ms, 16:9, 178°, G-Sync, FreeSync, DP/HDMI/USB, Speakers, VESA, Tilt
$170


AOC U2790VQ 27" 4K 3840x2160 UHD Frameless Monitor, IPS, 5ms
$180


If you feel that you have to have a name brand monitor, check out this really good deal:

LG 27US500-W Ultrafine Monitor 27-Inch 4K UHD (3840x2160) HDR10 IPS Borderless Design Reader Mode Flicker Safe Switch App HDMI DisplayPort - White
$250


This inexpensive hub will allow you to connect your monitor (at full resolution), give you Ethernet, and give you several USB-A ports for peripherals:

Hiearcool USB C Hub Ethernet,4K@60 USB C to HDMI Hub,8in1 Multi-Port USB C Adapter Type C Dock Dongle Compatible for MacBook Pro Air iPad Dell Lenovo
$28


This hub is almost identical to the Hiearcool, above, but it is from Anker, and some folks prefer that brand to any other:

Anker 555 USB-C Hub (8-in-1), with 100W Power Delivery, 4K 60Hz HDMI Port, 10Gbps USB C and 2 A Data Ports, Ethernet microSD SD Card Reader, for MacBook Pro More
$40


The monitor that you get should come with a suitable HDMI to HDMI cable to attach the hub to the monitor. If not, you need an HDMI 2.0 or 2.1 cable.


__________________________________________________

Randy B. Singer
Co-author of The Macintosh Bible (4th, 5th, and 6th editions)

Essential But Hard To Find Macintosh Software and Advice

__________________________________________________


 

Ok, I decided to order the LG suggestion … it will arrive Monday. Looking forward. Thanks for the recommendations.

:-)

Peter

--------------------------------

?? Greenland is not for sale!

On 4 Apr 2025, at 13.28, Randy B. Singer via groups.io <randy@...> wrote:



On Apr 4, 2025, at 3:14 AM, Peter Rasmusen <peter@...> wrote:

Recommendations for a good and affordable replacement for the 30” Cinemad Display are very welcome …
All of the following are 27-inch IPS 4K monitors...

If you don't mind a Chinese monitor, check out these amazing deals:

YEYIAN ODRAZ 27” IPS Panel HDR 4K UHD Slim Bezel PC Gaming Monitor 3840x2160, 1 Billion Colors, Low Blue, 300cd/m2, 1000:1, 60Hz, 5ms, 16:9, 178°, G-Sync, FreeSync, DP/HDMI/USB, Speakers, VESA, Tilt
$170


AOC U2790VQ 27" 4K 3840x2160 UHD Frameless Monitor, IPS, 5ms
$180


If you feel that you have to have a name brand monitor, check out this really good deal:

LG 27US500-W Ultrafine Monitor 27-Inch 4K UHD (3840x2160) HDR10 IPS Borderless Design Reader Mode Flicker Safe Switch App HDMI DisplayPort - White
$250


This inexpensive hub will allow you to connect your monitor (at full resolution), give you Ethernet, and give you several USB-A ports for peripherals:

Hiearcool USB C Hub Ethernet,4K@60 USB C to HDMI Hub,8in1 Multi-Port USB C Adapter Type C Dock Dongle Compatible for MacBook Pro Air iPad Dell Lenovo
$28


This hub is almost identical to the Hiearcool, above, but it is from Anker, and some folks prefer that brand to any other:

Anker 555 USB-C Hub (8-in-1), with 100W Power Delivery, 4K 60Hz HDMI Port, 10Gbps USB C and 2 A Data Ports, Ethernet microSD SD Card Reader, for MacBook Pro More
$40


The monitor that you get should come with a suitable HDMI to HDMI cable to attach the hub to the monitor. If not, you need an HDMI 2.0 or 2.1 cable.


__________________________________________________

Randy B. Singer
Co-author of The Macintosh Bible (4th, 5th, and 6th editions)

Essential But Hard To Find Macintosh Software and Advice

__________________________________________________









 

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In 20 years of using Macs, I have only had one issue with a monitor not working properly, if the end of the cable has the right connector or you have a working adapter. The resolution may not have been optimal, but they worked.?

The one issue I have had and am now experiencing is that Apple and there rest of the monitor or TV industry disagreed with the HDMI v1.0 & 1.1, but I still have a clear image, just 3/4” on all 4 sides of the hidden.?

If when you get the new monitor, you have the same problem, I would say you have a bad graphics board, not a compatibility issue.?


Brent ?

On my late 2012 Mac mini running 10.15.7?

?? ?Just because 47 wants Greenland, doesn’t mean he can take it. Please excuse the Orange man-child. Apologies for the village idiot. Send him a bill for the cleanup of all the abandoned military bases.?

On Apr 4, 2025, at 3:14 AM, Peter Rasmusen <peter@...> wrote:



A friend of mine just bought a brand new 14” MacBook Pro M4 Pro 24 GB / 2 TB to replace his very old “black chimney” Mac Pro. Monterey didn’t do it for him anymore.

But OK. new MacBook pro arrived and we transferred data and stuff and everything is hunky dory, except his 30” Cinema Display HD (Model A1083) is either black or “patterned”. See image.




It does look suspiciously like a bad cable, yes? Or mayle a bad DVI-to-USB-C adapter? Or a bad DVI-to-HDMI adapter, yes?

No!

We have cross-tested all adapters with my MacBook Pro M2 Max - and they work.

We have also tested his new MacBook Pro M4 Pro with my 23” Apple Cinema Display HD (Model A1082) and that works fine too.

Apple support has given up … they suggest reinstalling the system (which did not work) or accepting that ?… and I quote … “the chips in the MacBook Pro M4 and the Cinema Display may not be compatible” …

Which I find weird, since it works with my 23” Cinema Display HD monitor … ?but maybe there’s different electronics in a 23” A 1082 and the 30” A 1083 … who knows

Anyways … now you are warned, if you have one of these monitors and you are considerering a new M4 Pro MacBook Pro.

Also: Recommendations for a good and affordable replacement for the 30” Cinemad Display are very welcome … ?


:-)

Peter

--------------------------------

?? ?Greenland is not for sale!







 

?
?
I have been bookmarking articles on external monitors f/u/w the Mac Mini which I intend to purchase at some point. ?Above are two URLs I saved last week. ?When I began looking into monitors f/u/w a Mac, I discovered that the vast majority of monitors are built to work with Windows machines which connect differently with external monitors than do Macs and it's not easy to find non-Apple monitors that will seamlessly, repeat seamlessly, work as well with a Mac as do Apple monitors. You run into problems with Resolution & Pixel Density & Scaling, Refresh Rates, Panel Types, Response Time. ?I hope you report back on which monitor you get, how easy it was to connect to and set up, and your level of satisfaction with it. ?Good luck!


 

On Apr 5, 2025, at 7:19 AM, Bob Gerard via groups.io <rowerbob@...> wrote:

When I began looking into monitors f/u/w a Mac, I discovered that the vast majority of monitors are built to work with Windows machines which connect differently with external monitors than do Macs and it's not easy to find non-Apple monitors that will seamlessly, repeat seamlessly, work as well with a Mac as do Apple monitors. You run into problems with Resolution & Pixel Density & Scaling, Refresh Rates, Panel Types, Response Time.
You’ve made it sound very complex, and while there is a lot to know, you’ve made it way too complex, and you are worrying about things that you don’t need to worry about. (They may be important if you are a graphics professional and you need a monitor with specific capabilities.)

There is no such thing as an “Macintosh-specific” monitor anymore. There are just monitors, some have different performance capabilities and some have different input connections. They all can be mated to a Macintosh fairly easily. Some have different inputs, which can be handled by using the appropriate Thunderbolt to whatever adapter with your Mac. However, all computers transmit a completely digital video signal now, so as long as you adhere to the most recent standard, including adapter and cabling, any input (on your monitor) you use should work fine (assuming that you aren’t using a monitor from years ago). The standard now is HDMI. Some Macs even come with HDMI output ports, and all monitors for years now have had HDMI inputs. But using the DisplayPort input (commonly used by Windows computers) that is also extremely prevalent, is absolutely fine too.

Basically, unless a specific monitor’s manufacturer says that their monitor isn’t compatible with your Macintosh, it is. But I haven’t seen a monitor that won’t work with a Mac in many years now.

See:

Using 4K displays, 5K displays, and Ultra HD TVs with your Mac





If you are looking for a monitor for a particular model/year of Macintosh, I’d be happy to make some recommendations for monitors, and tell you what needs to be done (what you need to get) to get that monitor to work seamlessly with your Mac.

__________________________________________________

Randy B. Singer
Co-author of The Macintosh Bible (4th, 5th, and 6th editions)

Essential But Hard To Find Macintosh Software and Advice

__________________________________________________


 

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If you are looking for a monitor for a particular model/year of Macintosh, I’d be happy to make some recommendations for monitors, and tell you what needs to be done (what you need to get) to get that monitor to work seamlessly with your Mac.


Kind of you to offer, Randy, and thank you.

I have a 2020 iMac, 500 GB SSD, 27” monitor, macOS 15.4

When this iMac will no longer support the current macOS, my plan was to get the latest Mac Mini and a superior 27” external monitor. ?

I already have an Apple mouse and both a bluetooth and a wired keyboard, so in the very distant future [if I am still around; I am 86 after all…how many more upgrades do I get :-) ]when that Mac Mini will no longer support the then-current macOS, I would need to replace only the Mac Mini.?


Bob?
——
If you are disillusioned, it means that you had illusions in the first place.





 

On Apr 6, 2025, at 8:32 AM, Bob Gerard via groups.io <rowerbob@...> wrote:

my plan was to get the latest Mac Mini and a superior 27” external monitor.

This is a popular question. The new M4 mini is wildly popular. I just hope that it doesn’t shoot up in price because of the tariffs.

Okay, here we go. Let me give you a number of choices among products that are really good at a great price right now.

A new base M4 mini comes with two USB-C ports (supporting USB 3), three Thunderbolt 4 ports and one HDMI port.
Since it comes with an HDMI port, and since you don’t need a professional (read: wildly over-priced) monitor, you will be using the HDMI port to attach an external monitor. So, you are looking for a monitor that supports 4K resolution at 60Hz over HDMI. (That’s just about every single monitor out there.)

So, you need a 27-inch 4K IPS monitor. (IPS, In Plane Switching, is the panel type. This is the type of panel most folks prefer. Other panel types are just about as good these days, but buy why not be picky?) Just about any monitor that you purchase will have an HDMI input. The HDMI spec that we are looking for all down the chain will be HDMI 2.0 or 2.1, so that the monitor can achieve 4K@60hz. This will be dead easy in your case, because you don’t need an adapter to make your mini work with a monitor, your mini already has HDMI.

First, let me suggest a couple of monitors that are a great deal right now.

If you don't mind a Chinese monitor, check out there amazing deals:

YEYIAN ODRAZ 27” IPS Panel HDR 4K UHD Slim Bezel PC Gaming Monitor 3840x2160, 1 Billion Colors, Low Blue, 300cd/m2, 1000:1, 60Hz, 5ms, 16:9, 178°, G-Sync, FreeSync, DP/HDMI/USB, Speakers, VESA, Tilt
$170


AOC U2790VQ 27" 4K 3840x2160 UHD Frameless Monitor, IPS, 5ms
$180


If you feel that you have to have a name brand monitor, check out:

LG 27US500-W Ultrafine Monitor 27-Inch 4K UHD (3840x2160) HDR10 IPS Borderless Design Reader Mode Flicker Safe Switch App HDMI DisplayPort - White
$250



The monitor that you get should come with a suitable HDMI to HDMI cable to attach the mini to the monitor. If it doesn’t come with one, let me know and I can recommend a source for an HDMI 2.1 cable, the shorter the better.

CAVEAT: There are now huge tariffs on Chinese, Vietnamese, and Japanese goods. All of the above prices could change (i.e. shoot up) any second.






__________________________________________________

Randy B. Singer
Co-author of The Macintosh Bible (4th, 5th, and 6th editions)

Essential But Hard To Find Macintosh Software and Advice

__________________________________________________


 

Greatly appreciate your taking the trouble for that detailed answer, Randy!


 

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I agree, Bob…and that Randy’s been helping Mac owners by offering his knowledge and experience for decades!

Thank you Randy!

David Morganstein (with memories of the Washington Apple Pi, one of the largest Apple users groups)

On Apr 7, 2025, at 9:30?AM, Bob Gerard via groups.io <rowerbob@...> wrote:

Greatly appreciate your taking the trouble for that detailed answer, Randy!


 

开云体育


Hello

OK, so the new monitor (LG 27US500-W Ultrafine Monitor 27-Inch 4K UHD (3840x2160)) arrived today, and I went to my friend's place, we unpacked it and connected it to power, connected it to the computer with the enclosed HDMI-HDMI cable, turned on the comouter and everything was just perfect.?

Honestly, that was all we did. No trouble, no hassle.?

Great picture, high resolution, brilliant colors. No complaints!?

Another great recommendation from Randy.

?

Peter


On 6 Apr 2025, at 17.08, Bob Gerard <rfg1647@...> wrote:

Ok, I decided to order the LG suggestion … it will arrive Monday. Looking forward. Thanks for the recommendations.?

Peter - Please do let us know of your experience setting up your monitor and your satisfaction with it.

I save these three screenshots from a MacMost video presentation on connecting a Mac to an external monitor.

What I find curious is why MacMost does not address the hdmi to hdmi connection.

MacMost says this is the best way to connect a Mac w/ an external monitor.
Connection1, preferred.jpeg

This is the second best way…


connection2, good.jpeg


And this is the least desirable way to do so...
Connection3, worst.jpeg
Bob
------
"At?what point then is?the approach of?danger to be?expected??I?answer,?if it ever reach us, it?must spring up?amongst us. It?cannot come from?abroad. If?destruction be our?lot, we must?ourselves be its?author and finisher.?As a nation of?freemen, we must?live through all time,?or die by suicide."??
?- Abraham?Lincoln




 

Thanks so very much for responding, Peter. ?So pleased to learn that the hookup of the new monitor was seamless and that you are pleased with it. ?And $250 beats the pants off the price for the Apple-branded 27" monitor. ?
?
Randy was right about the HDMI to HDMI port connection. ?When I went looking online for info on this subject, I ran across site after site that over complicated things, like this one:
?


 

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Generally all versions of HDMI play well with one another, ?but ?if you were working with older equipment, there is one notable issue.?

I stumbled across it using a late 2012 Mac mini and a Vizio TV/ monitor from about 2009. The Vizio uses HDMI ?v 1, and I am not sure if the mini uses v 1or 2. The issue is that it cuts off a bit of all 4 edges of the desktop. The whole Menu Bar and some of the Dock are not visible.?

I suspected that a monitor with HDMI v 2 would solve it.?

This is a known issue, by a very few, and very infrequently run into. I was later given a 44” Roku TV. When I connected it to my mini to watch a movie, the full Desktop was shown. The Roku uses a more current version of HDMI.

Brent

On my iPhone Xr

On Apr 8, 2025, at 08:02, Bob Gerard via groups.io <rowerbob@...> wrote:

?
Thanks so very much for responding, Peter. ?So pleased to learn that the hookup of the new monitor was seamless and that you are pleased with it. ?And $250 beats the pants off the price for the Apple-branded 27" monitor. ?
?
Randy was right about the HDMI to HDMI port connection. ?When I went looking online for info on this subject, I ran across site after site that over complicated things, like this one:
?


 

On Apr 8, 2025, at 11:10 AM, Brent via groups.io <whodo678@...> wrote:

The Vizio uses HDMI v 1

HDMI 2.0 wasn’t introduced until 2013. It supports 4K resolution.

HDMI 1.x, at it’s best, never supported 4K resolution.

HDMI 1.4, the highest iteration of HDMI 1.x, wasn’t introduced until 2009. So your Vizio might not even support HDMI 1.4. It might not even support 2K.

My earlier point to Bob was that if you have a recent Mac, and a recent monitor, things are fairly simple. They get a lot more complex if you have an old monitor and/or an old Mac. In fact, since DisplayPort was more advanced than HDMI for a bunch of years, if you have an old computer and/or an old monitor, you may not want to connect them via HDMI. Another input, if available, might give better performance.



__________________________________________________

Randy B. Singer
Co-author of The Macintosh Bible (4th, 5th, and 6th editions)

Essential But Hard To Find Macintosh Software and Advice

__________________________________________________


 

Yes, Randy, the OP was talking about devices that would have some version of HDMI v2, and I was talking devices that had versions of HDMI v1.

I couldn’t fine the HDMI version for my late 2012 Mac mini, but your bit of info suggests it was probably v1.4.

My 2008 or 2009 Vizio is not a Smart TV, but just a Digital TV, with HDMI v1.

I talked to senior tech support at both Apple and Vizio. A senior tech from Vizio, had me check for the needed settings to correct the issue I was seeing. Those settings were greyed out, and there was not upgrade to get them. Since my monitor was so old, there was no chance to see an upgrade in firmware to correct it.

The senior tech finally disclosed that cause was that Apple and the monitor industry disagreed on the interpretation of the HDMI v1 standard at that time.

A users suggested a third party app to tweak the settings on the Mac, but I was lost in the weeds. It was past my knowledge level, or just didn’t work.

The point of my prior post was that, as I had started, HDMI to HDMI will normally give an image that is acceptable to most, unless one if the devices uses v1.

If the person is the visual equivalent of an audiophile, then they probably have the budget to upgrade the hardware.

Oh, btw, the late 2012 Mac mini has two video output ports, one HDMI and one Thunderbolt. The Thunderbolt appears the default main monitor, if both are used.

Brent

On my iPhone Xr

On Apr 8, 2025, at 21:29, Randy B. Singer via groups.io <randy@...> wrote:

?

On Apr 8, 2025, at 11:10 AM, Brent via groups.io <whodo678@...> wrote:

The Vizio uses HDMI v 1

HDMI 2.0 wasn’t introduced until 2013. It supports 4K resolution.

HDMI 1.x, at it’s best, never supported 4K resolution.

HDMI 1.4, the highest iteration of HDMI 1.x, wasn’t introduced until 2009. So your Vizio might not even support HDMI 1.4. It might not even support 2K.

My earlier point to Bob was that if you have a recent Mac, and a recent monitor, things are fairly simple. They get a lot more complex if you have an old monitor and/or an old Mac. In fact, since DisplayPort was more advanced than HDMI for a bunch of years, if you have an old computer and/or an old monitor, you may not want to connect them via HDMI. Another input, if available, might give better performance.



__________________________________________________

Randy B. Singer
Co-author of The Macintosh Bible (4th, 5th, and 6th editions)

Essential But Hard To Find Macintosh Software and Advice

__________________________________________________









 
Edited

One more thing about HDMI connections. ?It was not until ?our 2005 Samsung TV died two years ago and we replaced it did we learn that there are different versions of HDMI cables. ?
?
There are versions 1.4, 2.0, and 2.4.
?
1.4 is capable of a Maximum Resolution of 4K at 30 Hz. ?
2.0 is capable of a Maximum Resolution of 4K at 30 Hz. ?
2.4 is capable of a Maximum Resolution: Up to 10K at 120 Hz
?
Randy alluded to this in an earlier email.


 

On Apr 9, 2025, at 2:33 PM, Bob Gerard via groups.io <rowerbob@...> wrote:

there are different versions of HDMI cables.

There are versions 1.4, 2.0, and 2.4.

1.4 is capable of a Maximum Resolution of 4K at 30 Hz.
2.0 is capable of a Maximum Resolution of 4K at 30 Hz.
2.4 is capable of a Maximum Resolution: Up to 10K at 120 Hz
I don’t know where you got that information, but you should never go back there.

There is no such thing as HDMI 2.4. At least not yet.

What you are calling HDMI 2.4, is actually HDMI 2.1.

And HDMI 2.0 can support up to 4K video at 60 Hz

See:


The HDMI port in the new (base) M4 Mac mini supports HDMI 2.1, but that is irrelevant, since all of the reasonably priced 4K monitors on the market only support HDMI 2.0 (4K video at 60 Hz). Which is more than plenty. So all that you need is an HDMI 2.0 cable. But since an HDMI 2.1 cable is backwards compatible, that will work too.



__________________________________________________

Randy B. Singer
Co-author of The Macintosh Bible (4th, 5th, and 6th editions)

Essential But Hard To Find Macintosh Software and Advice

__________________________________________________


 

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Very similar to how the abilities of USB or FireWire improved over time.?

Brent

On my iPhone Xr

On Apr 9, 2025, at 14:29, Bob Gerard via groups.io <rowerbob@...> wrote:

?
One more thing about HDMI connections. ?It was not until ?our 2005 Samsung TV died two years ago and we replaced it did we learn that there are different versions of HDMI cables. ?
?
There are versions 1.4, 2.0, and 2.4.
?
1.4 is capable of a Maximum Resolution of 4K at 30 Hz. ?
2.0 is capable of a Maximum Resolution of 4K at 30 Hz. ?
2.4 is capable of a Maximum Resolution: Up to 10K at 120 Hz


 

I believe I saw mention of HDMI v 1.4 and 2.4 in a recent Wikipedia article. Just goes to show you that it is written by people who are not necessarily correct, or that our understanding or memory of the articles are not necessarily accurate.

Yet the only versions commonly mentioned or available are v 1.0, 1.1, 2.0 or 2.1. But I did run into HDMI cables that had only one docked corner. Another way of describing the connectors, instead of 6-sided, they were 5-sided.

Brent

On my iPhone Xr

On Apr 10, 2025, at 02:49, Randy B. Singer via groups.io <randy@...> wrote:

?

On Apr 9, 2025, at 2:33 PM, Bob Gerard via groups.io <rowerbob@...> wrote:

there are different versions of HDMI cables.

There are versions 1.4, 2.0, and 2.4.

1.4 is capable of a Maximum Resolution of 4K at 30 Hz.
2.0 is capable of a Maximum Resolution of 4K at 30 Hz.
2.4 is capable of a Maximum Resolution: Up to 10K at 120 Hz
I don’t know where you got that information, but you should never go back there.

There is no such thing as HDMI 2.4. At least not yet.

What you are calling HDMI 2.4, is actually HDMI 2.1.

And HDMI 2.0 can support up to 4K video at 60 Hz

See:


The HDMI port in the new (base) M4 Mac mini supports HDMI 2.1, but that is irrelevant, since all of the reasonably priced 4K monitors on the market only support HDMI 2.0 (4K video at 60 Hz). Which is more than plenty. So all that you need is an HDMI 2.0 cable. But since an HDMI 2.1 cable is backwards compatible, that will work too.



__________________________________________________

Randy B. Singer
Co-author of The Macintosh Bible (4th, 5th, and 6th editions)

Essential But Hard To Find Macintosh Software and Advice

__________________________________________________









 

On Apr 10, 2025, at 1:25 PM, Brent via groups.io <whodo678@...> wrote:

Yet the only versions commonly mentioned or available are v 1.0, 1.1, 2.0 or 2.1.

Lots of folks with monitors that are a number of years old have monitors that support HDMI 1.4, maximum. For many of those folks, if they plan to attach their old monitor to a newer Mac, it would be best NOT to connect them via HDMI. Often such monitors also have a DP 1.4 input. Using DP would be advantageous, with matching adapter and cabling, as DP1.4 was superior to HDMI 1.4.
,

__________________________________________________

Randy B. Singer
Co-author of The Macintosh Bible (4th, 5th, and 6th editions)

Essential But Hard To Find Macintosh Software and Advice

__________________________________________________