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


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jobinhosyntax

macrumors regular
Aug 16, 2020
120
50
Is the 5700 (not XT version) experiencing any glitches? Aside from the white lines it seems to be free from.
 
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dspdoc

macrumors 68000
Mar 7, 2017
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Did it come with door dings and windshield wipers that would go on/off intermittently, even when it wasn't raining?
Nooooooooooooo! I would have lost my mind.

You said it perfectly with your, “don’t make me feel like I’m going backwards” statement. This iMac should not feel like a worse machine than the 2019. Yet right now it does. ?
 
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KrazyKanuck

macrumors regular
Aug 8, 2020
137
142
Is the 5700 (not XT version) experiencing any glitches? Aside from the white lines it seems to be free from.
I have an i7 with the 5700, and I appear to have the squared corners. See attachments. It took some effort to reproduce these effects. The dark mode features System Preferences; the light mode Mail. So far I have not seen the white line, but I've changed my background to solid black and will report back if the white line pops up.
 

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mindquest

macrumors 6502a
Oct 25, 2009
533
106
I have three 2020 iMacs i9 5700xt and so far no issues on any of them. We do a lot of photoshop and video editing daily.

All three were different orders so guessing different build batches. Wondering how big an issue this is percentage wise. Got some friends with this problem so hoping it is a software issue
 
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ADGrant

macrumors 68000
Mar 26, 2018
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I purchased the new iMac right when it was released, Maxed it out with the nano glass and all the bells and whistles. Mac came in (Loved the mac) but then noticed the glitching.. I contact apple right away (first week) and told them of the issue, (this was back in late August) and they said this is the first they heard of the issue and that would be tracking any issues with the newer model... They are sending a new one, which i should receive on 9/16/2020. If the new one has the same issue, i will send it back and just get a refund. As much as i love the apple products i have a 2019 i can use here as well.

The outcome that everyone ultimately wants is a mac that works glitch free. Im hopeful that the replacement will be fine, but if not it goes back. I am not paying 5k for machine that has an issue with no root cause identified. Hopefully when the issue is ironed out i can repurchase the new iMac..

If i knew it was SW for sure then i would just keep it with the expectation a fix would soon be out, but right now whether it is HW or SW no one really knows.. I feel it is safer to just refund it until it has been acknowledge and fixed by apple.

The new one will have the same issue. Whatever the root cause of this particular problem is it is not a manufacturing defect. Since the 5700XT does not have this issue in Windows either in this Mac or in actual PCs it is almost certainly a defect in the software.

If you already have a 2019 though why upgrade? The GPU in that machine will be quite mature (if you didn't spec the Vega 48 very mature). Was your 2019 a lower end spec or are you looking to postpone the ARM transition as long as possible?
 
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dspdoc

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Mar 7, 2017
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I have an i7 with the 5700, and I appear to have the squared corners. See attachments. It took some effort to reproduce these effects. The dark mode features System Preferences; the light mode Mail. So far I have not seen the white line, but I've changed by background to solid black and will report back if the white line pops up.
Oh my that’s ugly. SMH. C’mon Apple, don’t leave Catalina like this. I have bad feeling that’s what is going to happen.
 

dspdoc

macrumors 68000
Mar 7, 2017
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I have three 2020 iMacs i9 5700xt and so far no issues on any of them. We do a lot of photoshop and video editing daily.

All three were different orders so guessing different build batches. Wondering how big an issue this is percentage wise. Got some friends with this problem so hoping it is a software issue
If what you’re saying has any merit, it would mean this is a HW issue and not SW. HW ‘might’ affect ‘some’ units if it’s a batch issue (which I highly doubt). SW would affect ‘all’ units (which is much more likely).
 
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dspdoc

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Mar 7, 2017
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I know this has been said many times before, but everyone who is having these issues please keep reporting things to Apple.
 
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jobinhosyntax

macrumors regular
Aug 16, 2020
120
50
I have an i7 with the 5700, and I appear to have the squared corners. See attachments. It took some effort to reproduce these effects. The dark mode features System Preferences; the light mode Mail. So far I have not seen the white line, but I've changed my background to solid black and will report back if the white line pops up.

How frustrating. This is tipping me into buying an insane PC build, but just how on earth did this pass Apple QA - completely dropped the ball.
 
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dspdoc

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Mar 7, 2017
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How frustrating. This is tipping me into buying an insane PC build, but just how on earth did this pass Apple QA - completely dropped the ball.
I’m not convinced they even do QC anymore. Apparently that’s our job. There is no “assurance“. ?‍♂️
 

dspdoc

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Mar 7, 2017
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It appears shipping times are slipping on these machines. Even the base i7 27” which has typically been ‘in stock’. This is making me a little nervous that we might have a hardware issue here.
 

ADGrant

macrumors 68000
Mar 26, 2018
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How frustrating. This is tipping me into buying an insane PC build, but just how on earth did this pass Apple QA - completely dropped the ball.

Windows GPU drivers are not immune from driver issues either and Microsoft laid off most of its Windows QC team and replaced them with a public beta program. Windows updates have frequently gone awry and required a complete reinstall of the OS.

Aside from Windows itself, the other problem with a self built PC is when something goes wrong you won't have what some people in IT like to call "a single throat to choke".

Switching platforms over a GPU glitch seems like a huge over reaction to me. Like all the people who left New York City and moved to Florida because of Covid-19.
[automerge]1599407813[/automerge]
It appears shipping times are slipping on these machines. Even the base i7 27” which has typically been ‘in stock’. This is making me a little nervous that we might have a hardware issue here.

That or the new iMac is selling well.
 

dspdoc

macrumors 68000
Mar 7, 2017
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Windows GPU drivers are not immune from driver issues either and Microsoft laid off most of its Windows QC team and replaced them with a public beta program. Windows updates have frequently gone awry and required a complete reinstall of the OS.

Aside from Windows itself, the other problem with a self built PC is when something goes wrong you won't have what some people in IT like to call "a single throat to choke".

Switching platforms over a GPU glitch seems like a huge over reaction to me. Like all the people who left New York City and moved to Florida because of Covid-19.
[automerge]1599407813[/automerge]


That or the new iMac is selling well.
Yeah I don’t think they are selling this well. Not enough to delay the base ‘in store’ models.
 

ADGrant

macrumors 68000
Mar 26, 2018
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Yeah I don’t think they are selling this well. Not enough to delay the base ‘in store’ models.

Really, why not. Apple is experienced record Mac sales in the last quarter and with so many people working from home the 27" iMac is a particularly attractive option.

Also, Covid has caused some supply constraints for Apple and other tech companies.
 

dspdoc

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Mar 7, 2017
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Really, why not. Apple is experienced record Mac sales in the last quarter and with so many people working from home the 27" iMac is a particularly attractive option.

Also, Covid has caused some supply constraints for Apple and other tech companies.
Yeah, I don’t think so. Hope you’re right though. That will mean more people to report the issues.
 

ADGrant

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Mar 26, 2018
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ADGrant

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Mar 26, 2018
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If there is indeed a HW issue, yes.

Not a chance they would do that. Apple didn't shutdown laptop production with the much more serious Butterfly keyboard problems. They shipped laptops with the crappy keyboards for 4 years.
 

dspdoc

macrumors 68000
Mar 7, 2017
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Not a chance they would do that. Apple didn't shutdown laptop production with the much more serious Butterfly keyboard problems. They shipped laptops with the crappy keyboards for 4 years.
I guess we will all find out. I still hope it is SW and not HW.
 

Schnauzer World

macrumors regular
Dec 25, 2018
102
41
How frustrating. This is tipping me into buying an insane PC build, but just how on earth did this pass Apple QA - completely dropped the ball.

I thought about doing the same but if you don't like the PC or want a Mac later on, the resale value is half or less, not as good as an Apple product.
 

dspdoc

macrumors 68000
Mar 7, 2017
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I am 99% confident it is software but if it isn't they can replace the motherboard.
They’d be better off simply swapping out machines if it’s HW. I tend to think it’s SW too, but there’s that small part of me that still worries after seeing some of Apple’s track record. AMD plays a big role in this too. I’m just extremely disappointed Apple didn’t catch this before releasing them.
 

ADGrant

macrumors 68000
Mar 26, 2018
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They’d be better off simply swapping out machines if it’s HW. I tend to think it’s SW too, but there’s that small part of me that still worries after seeing some of Apple’s track record. AMD plays a big role in this too. I’m just extremely disappointed Apple didn’t catch this before releasing them.

How do you know they didn't catch it?
 
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