I noticed the same on my machine last Thursday and posted about it. I think that makes three of us thus far. Much harder to spot than the white line. Overall I haven’t seen a whole lot of either now lately. Probably tomorrow it will be super frequent now I said that though.
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iMac 2020, 5700XT - graphical glitch?
- Thread starter torifile
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2019 was the higher end spec, but i was looking for a larger storage capacity, 10gb lan and Nano glass (due to many reflections in the office with lighting and windows) The 2019 isn't bad by any means, I am back on that for the time being. Just loved the storage aspect and having it be all solid state and being much faster. Data Transfers on 1 gb aren't overly bad, but the 10gb makes it so much quicker.. Overall the upgrade was just for better performance. The ARM unit I'm actually looking forward to, but mainly due to development reasons (been a software engineering for 30+ years) so i think it will be exciting to see how and what they can accomplish with the Apple Silicon chipsets.
The AMD 5700 XT in iMac are part of the main logic board, as opposed to windows as stand alone card, This doesn't out rule hardware failure unfortunately. I hope it is just software but because it is integrated it could be either or..
Update: New one had the same issues but also some new quirky ones as well with true tone being only on half the screen after a resolution change lol. That was new! lol Anyhow sent the replacement back for refund and now we wait to see what happens... Does it get fixed or does the Apple Silicon replace it? who knows...
I received more than a week the replacement and still the same issue or worst, just called to returned, no another replacement, I will think what do from now, the iMac Pro 2017 is £ 3490 . near same config to 2020 the only thing put me down is the XEON may no good as i9 ? any ideas ?
The other thing to remember with the iMac Pro, is there is no RAM access door for the user to easily upgrade the RAM. Screen needs to come out to access the RAM
The other thing to remember with the iMac Pro, is there is no RAM access door for the user to easily upgrade the RAM. Screen needs to come out to access the RAM
Yes, so in this instance just pay the Apple prices for the RAM.
My experience of the 2020 iMac.
3.8 GHz 8-Core / 64GB / 2TB / 5700XT
Random white line.
Square corners to program and finder windows.
Font descenders sometimes sheared.
Gets knickers in complete twist with spinning beach ball finale... requiring hard, power button reset.
8 days old, I have a case number and it's going back to the fruit shop.
Was hoping to replace my trusty 2012 MacPro that's never missed a beat. Hey-ho.
3.8 GHz 8-Core / 64GB / 2TB / 5700XT
Random white line.
Square corners to program and finder windows.
Font descenders sometimes sheared.
Gets knickers in complete twist with spinning beach ball finale... requiring hard, power button reset.
8 days old, I have a case number and it's going back to the fruit shop.
Was hoping to replace my trusty 2012 MacPro that's never missed a beat. Hey-ho.
Attachments
Did you actually capture the white line with a screenshot vs an external camera? As far as I’ve seen on this forum no one has been able to do that thus far. Anyone else?
I haven't seen the font descender issue and the beach balling sounds like either an issue with your specific Mac or perhaps some software you are running. I am guessing your 2012 is not running Catalina?
My 2020 has about a 20 day uptime at this point.
First time seeing the white line right in the middle of the screen over the Catalina rock formations (between software update window left and contacts on the right side of the screen).
In answer to the questions.
Will I get a new one? - Yes... apart from the issues it was a joy to work without proxies on a 4K 10bit timeline that had no lag at all... but I may wait for the dust to settle before pulling the trigger again.
White line - screenshot or camera? - I uploaded a screenshot from an iPhone video taken this morning.
I spotted the descender issue in OSX Mail, the beach ball appeared while using Premiere Pro (yes, I know, I know... but it's what I use).
As a side note, when Adobe updated PP earlier this week I did notice it seemed to make much more use of the video card.
....the cheeky little white line just said hallo again, I think I'm going to miss it.
Will I get a new one? - Yes... apart from the issues it was a joy to work without proxies on a 4K 10bit timeline that had no lag at all... but I may wait for the dust to settle before pulling the trigger again.
White line - screenshot or camera? - I uploaded a screenshot from an iPhone video taken this morning.
I spotted the descender issue in OSX Mail, the beach ball appeared while using Premiere Pro (yes, I know, I know... but it's what I use).
As a side note, when Adobe updated PP earlier this week I did notice it seemed to make much more use of the video card.
....the cheeky little white line just said hallo again, I think I'm going to miss it.
I think it is quite possible that the beach ball is an Adobe issue. The descender is probably just another GPU bug. I suspect if you order another 2020 with a 5700XT, you might see all the same issues. If you want a glitch free experience on a desktop, the two options are an iMac Pro or a Mac Pro with a Vega card.
You could get a Mac mini with an eGPU but that is very expensive for the amount of performance.
I don't buy it, sorry. With this type of attitude I'm not surprised we have so many problems with everything. Some developers have higher standards than others.
With respect, that's a bunch of hooey. My 2020 iMac fans hardly ever come on. This has nothing to do with heat dissipation. Your post is a classic armchair internet warrior response to an issue he or she knows nothing about using technical knowledge he or she does not possess. In a thread like this, unless you have specific knowledge and first hand experience to share, it's probably best not to comment.
I agree about Adobe being the possible culprit with reference to the beach ball.
With regard to other options, the 2020 iMac is a beast when it's playing nicely and looks to push all the buttons I need pushing at a price that's less than the 2012 cheese grater I bought many moons ago.
I can't imagine ARM silicon will settle down to anything reliably useful in a professional environment for at least a couple of years - so I'm not waiting for that. I personally think the iMac Pro's days are numbered, it might be reliable because of the older tech, but now looks so overpriced next to a 2020 iMac (if only that didn't have symptoms of impending doom).
The Mac Pro would be a worthy option... but I'd rather have an iMac that'll do what I actually need and a nice Rolex too.
I'm reasonably confident they'll drop a software fix, but if it's the 5700XT hardware to blame I understand it's built into the motherboard so it'll take more than a quick beer at the Genius Bar to get it firing on all cylinders. I don't want to be wasting time with a back and forth experience with Apple... collection, delivery, downtime.. not my cup of tea.
Having pushed it for a week to make sure it'll do what I need, I'm of the opinion it's a steal at the price point. I hope it gets fixed soon.
I have the i9 with the 5700xt and glitch. I love the machine, could care less about a few white lines and i am keeping it. Seems that the glitch causes no other issues.
I have had my new iMac (27", i7, 5700XT, 64GB RAM, 1 TB SSD) for two weeks. During that time I have been migrating my recording studio software from a 2015 IMac to this new computer. So far, I have not experienced any video issues. I have tried to replicate the white line issue and the corner defect issue, but to date have not experienced them. My iMac was made in China. I am thrilled with this new iMac so far; it is extremely powerful and very quiet as compared to my old iMac when working at high processor loads. With a large, multi track project with a large number of software instruments and many audio processors, the fans rarely spin-up to noticeable sound levels.
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Yes, you right, no worth at the moment get the iMac Pro, but on my heart cannot keep this iMac , I one of the had issues on 2011 with the graphic card, has been fixed by recall program in 2014 but failed again after 2 years then bought late 2015 where worked perfectly, stupidly sold it ( very good price ) to buy this one. This is second replacement and with the same issue, I will returned and wait till heard from Apple any solution, at the moment return to my MacBook Pro.The other thing to remember with the iMac Pro, is there is no RAM access door for the user to easily upgrade the RAM. Screen needs to come out to access the RAM
Those errors come because an inefficient thermal system, I wrote it before. I write it again.
Doesn't matter if you hear or not the fan. It's just you cannot put those powerful chipsets in an small enclosure, with just 1 heatsink shared by both chipsets.
Intel i7 10700kf with a TDP of 125W, in that little space and if that was not enough suffering for the chipset they add a Radeon 5700XT.
hey, don't worry we have an extraterrestrial heatsink dissipator in there that would put away all the heat produced. No, I'm sorry, that's Mathematically/Physically impossible.
As someone also posted, is not first time apple has thermal issues.
It's a shame that happening. I do not understand who they have supervising those new products before lunch.
Seems apple is living from their past victories, people is that blind that they only see the nice metal aluminium looking.
Again, Intel i7 10700kf is a desktop CPU, should never be in there.
But hey, if chipsets burn out after 6 years of use our rich client will get a brand new iMac, or maybe before.
So, why we should care?
Any serious person that wants the Mac for work shouldn't buy those new iMac.
again, apple should release something between Mac Mini and Mac Pro.
iMac should be equipped with laptop chipsets, not with desktop ones.
Have you seen any powerful desktop workstation without fans? because those iMac are almost that.
or maybe is just a market strategy.
Release those new powerful iMac 2020 that break easily, to later release their ARM chipsets.
And just tell the problems were because Intel/AMD chipsets are rubbish, instead of telling the truth, which is no sane person would use those powerful chipsets without a proper heat dissipation system.
Ask to your known hardware specialist, let's see what he/she tells you.
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I’m in a very similar stupid-boat. Sold my Late-2015 (max spec) for a good price to help encourage my trigger finger. What a fool I was! Every day that goes by the money I received matters less and my anxiety about not having a great computer intensifies.
Currently waiting for my replacement 2020 iMac to arrive this week, first one was DOA.
It still happens in beta 6. I haven't seen any posts from beta 7 users.
The 5700XT and other Navi variants have had driver issues since they were released about a year ago. I am not sure we can expect an immediate fix. Personally I have no appetite to pay the extra money for the iMac Pro or even more money for the Mac Pro. That said, while I agree that the iMac Pro's days are numbered, the same could be said of any Intel Mac.
You are correct that a GPU swap would require a motherboard swap but I consider that an unlikely outcome.