iMac 27 inch 2020 - Screen Glitch (Random Lines Appear on Screen)

I don't think Apple is naive, many countries have very different rules of consumer protection, such here in NZ under the Consumer Guarantee Act, where the warranty has to be extended automatically based on the brand reputation, price paid and expectation of its economic lifespan which for computers are up to 7 years. So it is very easy to get a repair / replacement if the iMac goes bust after 3 or 4 years with no questions asked such happened a few times with two old macbooks of mine.

Everyone is bound to have to reply to someone in order to post. So, to quote from the link to MacRumors, if for no other reason than not to have to link back:

"... fixes a bug that could prevent files from syncing through iCloud Drive, and most notably for new iMac owners, it fixes an issue that was causing a small white flashing line to appear on machines equipped with the Radeon Pro 5700 XT."

https://www.macrumors.com/2020/09/24/apple-releases-macos-catalina-10-15-7/

If so, then I'm on my way to purhse what I was going to purchase before this thread. Wait and see.

Just to be clear - so you’re saying there’s no point buying Apple Care for an iMac if you live in NZ like I do? Because as New Zealanders we can just rely on the Consumers Guarantees Act if a repair is necessary for an iMac that has been purchased within a 7 year time frame? Are you sure about that?

You should be able to find info specific to NZ (or whichever country anybody else is interested in) from here: https://www.apple.com/legal/warranty/statutoryrights.html

It’s how I discovered that being as though I’m in the UK, I’m covered against my Mac breaking down for SIX years! Meaning that Apple Care essentially just becomes accidental damage insurance

In most cases it does not worth it.

Here you can find more information about extended warranty:

https://www.consumer.org.nz/articles/extended-warranties

Here you can find the reasonable lifespan for laptop and computers are 5 years for most of them, but because apple is a reputable brand and offer premium devices at premium price you can expect more than that.

https://www.consumer.org.nz/articles/appliance-life-expectancy

I hope it helps,

Regards

If you're only getting AppleCare(+) to cover hardware issues, it sounds as though it's probably not worth it in countries with such legal coverage. AppleCare+, however does cover accidental damage, which may or may not be covered under home and contents policies.

And I believe only AppleCare(+) covers tech support.

Mate, you‘re right.

I’m thinking about bringing the iMac back, because there are no white lines anymore. Hope to get another one with the old software.

Somehow it isn‘t the same... You guys think I can open it up, straight in the Apple Store to check if the Specialist and me can reproduce them? Would be epic.

The corner glitch was very annoying specially after I spent $4000 for that iMac. That’s why I returned it. I also called Apple Care to see if they fix this issue and guess what they said?

They didn’t even know this problem exists...! I told the tech dude: are you guys serious? It’s all over the internet. He said sorry he can’t help me. I’m a huge fan of Apple. I have ALL their products but this time I am very disappointed. I hope they fix it soon and train their tech people.

Such a disappointment. I was really hoping that the latest update (that fixed the random lines glitch) would also fix the complete crash bug we both experienced. I returned my iMac back then and have been in a limbo since the latest update whether to buy again or just go for PC setup. I guess your post has just answered that question for me. Thank you for your update on the matter.

You’re welcome. Honestly I would wait for them to fix this mess (Hopefully soon). I’ve been a MacBook Pro and iMac user for many years and this is the first time Apple messed up like this.

I’m really mad cuz I spent $4000 on that iMac and because of their fault I had to return it. I need an iMac for work but I guess I gotta wait till Apple fixes it. By the way I hate PC (No offense to anyone)

I'm probably not the best stress tester: I have most graphics settings squarely in the middle of the various ranges, and the game looks terrific. I do, however, use the "real" native resolution, 5120 x 2880. I realize the effective resolution is only half that, but with the amazing dynamic range of Retina displays, that resolution gives me much higher contrast, which helps my geezer eyes a lot. Even at that resolution, I'm able to maintain 60 fps in almost all environments other than raids, which I don't do because of the visual overload, among other reasons. The 60 fps figure is 33% - 50% better than I could eke out of my previous machine, a 2017 CTO 27-inch Retina 5K iMac with the top graphics option. I'm very happy with the system so far, and am neither surprised by nor upset by the fan sound when doing graphics-intensive things.

I'm not suggesting anyone switch to dark mode just because of this, but I will note that I've been using the i9/5700XT model I bought a month ago in dark mode with no indication of the corner issue. Would be interested if you or anyone else experiencing the issue tested dark mode to see if it persists.

Edit: Just checked "normal" mode.... and no sharp corners there, either. Running 10.15.7, up to date with all patches.

I called them up and am returning it via FedEx.

I guess the drive to Brea, which is open, is prohibitive? And smokey.

https://www.apple.com/retail/breamall/

Hi(Bonjour)

Look at his video to see my unhappy unboxing...

Look at Youtube...

Michel B.