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Please select GPU type and if you see the flickering glitch on the display:


  • Total voters
    215

swamyg1

macrumors regular
Dec 11, 2007
234
76
Ya, photoshop... Sometimes while playing a video. As I recall it sometimes does restart but other times does not. It's happened to me 5 or 6 times within the past two weeks. Pretty frequent... Concerning, and pretty annoying!

What was something graphically intensive ? 3D ? Photoshop...
 

AZREOSpecialist

Suspended
Mar 15, 2009
2,354
1,280
My kernel panicked and computer froze, then rebooted, while loading a web page. So there's that, too.

From what I've been able to glean online, kernel panics became a thing across multiple Mac products after upgrading to Catalina. Apparently Catalina also suffers from a memory leak that causes freezing and kernel panics while using virtualization and other programs.

This is my first experience with Catalina. My MacBook Pro has been on Mojave since shortly after its release and I don't remember the last time I shut it down or rebooted, it's been that long.
 
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Spk1

macrumors member
May 11, 2004
74
50
Winnipeg, Canada
Has someone already tried out with the use of a corded 3th party mouse ? Any difference ?
I'm using a Logitech Pro corded with LG's software and I've finally seen my first glitch, but only after I had logged out of my account, on the user login page. I only saw one flash and waited around for another but nothing.
 

nkurtar

macrumors member
Sep 13, 2019
47
13
Istanbul, Turkey
I'm using a Logitech Pro corded with LG's software and I've finally seen my first glitch, but only after I had logged out of my account, on the user login page. I only saw one flash and waited around for another but nothing.
How much time has been until you saw the first glitch?
 

Spk1

macrumors member
May 11, 2004
74
50
Winnipeg, Canada
I've found no issues when I'm in Windows 10, as others have confirmed in this thread. When running the same game - Shadow of the Tomb Raider - in Mac and Windows, the Windows version graphically plays better. I will post video later to show the issue.

That said, why are all the pitchforks and torches out for Apple and not AMD? Why isn't the hue and cry for AMD to fix the driver problem?

I'm not anywhere as nearly tech savvy as a lot of posters here, but I was thinking that if this issue had happened in, say, a comparable Corsair One or Alienware machine, which come at a hefty price, people would be after NVidia to fix the issue, not the respective computer manufacturers. When there are new drivers for my card for Windows 10, I don't look to Microsoft or Apple, I get them from AMD. So, isn't this an AMD problem?

It seems to me that Apple would at the very least work directly with AMD for drivers or, more likely, just provide AMD with the specs and AMD cranks out the drivers. It seems pretty inefficient for Apple to create drivers for third-party hardware and continually have to go back and forth with the manufacturer on technical issues.
[automerge]1600702426[/automerge]
How much time has been until you saw the first glitch?
Almost 3 weeks.
 

AndyMacAndMic

macrumors 65816
May 25, 2017
1,112
1,676
Western Europe
That said, why are all the pitchforks and torches out for Apple and not AMD? Why isn't the hue and cry for AMD to fix the driver problem?

Apple does the design for the hardware and the operating system. They hold the whole product design and production in their own hand. They had ample time to test/quality control the whole product before selling it and correct the glitch with AMD. It seems therefore logical that Apple gets the credits when it works, but also the blame when something fails.

Apple is responsible for the fact that it 'just works'. That is where the customer pays the big bugs for in contrast to the PC world. The customer expects more peace of mind for that money. When that does not happen the 'pitchforks' come out ;)

Windows has to run on thousands (millions?) of different hardware configurations. So the 'just works' part and the 'Apple handholding' are less self-evident and customers are much more used to that (so less pitchforks).
 
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Spk1

macrumors member
May 11, 2004
74
50
Winnipeg, Canada
Apple does the design for the hardware and the operating system. They hold the whole design and production in their own hand. They had ample time to test the whole product before selling it and correct the glitch with AMD. It seems therefore logical that Apple gets the credits when it works, but also the blame when something fails.

Apple is responsible for the fact that it 'just works'. That is where the customer pays the big bugs for in contrast to the PC world.
So Apple solely makes the AMD drivers? I'm sceptical.

It's also a bit funny that AMD released a Bootcamp driver update 2 weeks ago.

 
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AndyMacAndMic

macrumors 65816
May 25, 2017
1,112
1,676
Western Europe
So Apple solely makes the AMD drivers? I'm sceptical.

It's also a bit funny that AMD released a Bootcamp driver update 2 weeks ago.


Where did I say that Apple solely makes the AMD drivers? Apple designs the iMac with an AMD card (and other third party hardware) in it. Probably AMD writes the drivers, but in the end Apple is responsible for giving the right specs to AMD, a flawless product and the quality control. Again.. Apple has to make it 'just work'.

It is not that they have thousands of different hardware configurations to test. How many different hardware configurations does the new iMac have? Three of four maybe?
 
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CL14715

macrumors member
Sep 19, 2020
42
6
My replacement comes today.... This one came from Ireland. Not sure if that means anything since the last one came from China. I'm not too hopeful the issue will be gone but maybe it will be.
 

AndyMacAndMic

macrumors 65816
May 25, 2017
1,112
1,676
Western Europe
Well, the way you worded it, pretty much everywhere in your post.

Correction: you interpreted it everywhere in my post. Did you even read the rest where I put it all into context? Nowhere did I say such a thing. On top of that you failed to see the bigger picture I was trying to make and chose to get snarky.
No further basis for a fruitful discussion. I wish you a nice day.
 
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ADGrant

macrumors 68000
Mar 26, 2018
1,689
1,059
Where did I say that Apple solely makes the AMD drivers? Apple designs the iMac with an AMD card (and other third party hardware) in it. Probably AMD writes the drivers, but in the end Apple is responsible for giving the right specs to AMD, a flawless product and the quality control. Again.. Apple has to make it 'just work'.

It is not that they have thousands of different hardware configurations to test. How many different hardware configurations does the new iMac have? Three of four maybe?

These drivers are not just for the iMac, they also need to work with the 16" MacBook Pro and the Mac Pro with the two Navi options (one of which is the 5700XT).
 

ADGrant

macrumors 68000
Mar 26, 2018
1,689
1,059
Yes, they know it and is for that reason I returned and buy again when is fixed, if you pay premium price for a product why should keep it with issues ? at last they should be say - is a software or driver issue and we work on it , but nothing at all they completely silent

I understand your position (I avoided Catalina as long as possible) but if I didn't need a new Mac I would not have bought one. Waiting for them to fix the problem before buying is not an option for me.
 
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AndyMacAndMic

macrumors 65816
May 25, 2017
1,112
1,676
Western Europe
These drivers are not just for the iMac, they also need to work with the 16" MacBook Pro and the Mac Pro with the two Navi options (one of which is the 5700XT).

OK. Add a couple of more hardware configurations to the list (still not a very long list). But that does not take away from the fact that Apple is responsible for their own products and we can't complain to AMD directly. That is why Apple gets the 'pitchforks' (according to another forum member ;)).
Also, as far as I know, the glitch is only present on the iMac with the 5700XT. I have not seen any complaints about the other computers (correct me if I am wrong, but that still does not change the point).
 
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ADGrant

macrumors 68000
Mar 26, 2018
1,689
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OK. Add a couple of more hardware configurations to the list (still not a very long list). But that does not take away from the fact that Apple is responsible for their own products and we can't complain with AMD directly.

That is one major advantage of Apple Silicon for them, they will finally control their Mac platform. Won't end the problems for us though, AMD is not why Catalina kernel panics.
 
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Spk1

macrumors member
May 11, 2004
74
50
Winnipeg, Canada
Correction: you interpreted it everywhere in my post. Did you even read the rest where I put it all into context? Nowhere did I say such a thing. On top of that you failed to see the bigger picture I was trying to make and chose to get snarky.
No further basis for a fruitful discussion. I wish you a nice day.
Pretty sure the discussion could have gone on nicely if you didn't get defensive for no particular reason, but whatever.

Enjoy your day.
 

jobinhosyntax

macrumors regular
Aug 16, 2020
120
50
My replacement comes today.... This one came from Ireland. Not sure if that means anything since the last one came from China. I'm not too hopeful the issue will be gone but maybe it will be.

It probably just means it's been returned and then shipped out again as opposed to direct off the factory line. Mine was the same.
 
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wumpalumpa

macrumors member
Sep 19, 2020
75
92
Ya, photoshop... Sometimes while playing a video. As I recall it sometimes does restart but other times does not. It's happened to me 5 or 6 times within the past two weeks. Pretty frequent... Concerning, and pretty annoying!

go to the store and tell if they please can exchange your iMac 27 for a Mac Pro small form factor, but not the old trash can model. Ask them for new small form factor model

maybe that's the only way to make apple listen their costumers and facing their hardware problems, because even if they underclock the chipsets trough software (only possible solution), then they will be selling you something less powerful that what they claim on the specifications (what I guess is against law, unless they clearly specify somewhere chipsets are underclocked)
 

jobinhosyntax

macrumors regular
Aug 16, 2020
120
50
Are there any users experiencing random shutdowns with their 2020 iMac 10 Core 5700xt? It seems to happen when I'm doing something graphically intensive... My fans are always running loud when this happens... Them they spin up real fast before the machine shuts down. The machine does not attempt to restart itself. Just stays off.

I'm trying to determine whether the shutdowns I'm experiencing is a known issue or a software issue.

This GPU has been linked to shutdowns when performing graphics tasks on the Mac Pro... hoping it's not the same with this iMac.
 
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