Is your 2020 iMac having weird graphics problems? You aren't alone.

27-inch iMac 2020
27-inch iMac 2020 (Image credit: iMore)

What you need to know

  • Some owners of 2020 iMacs are reporting strange graphical glitches.
  • It seems to impact iMacs with the AMD Radeon Pro 5700 XT GPU.
  • There's no fix for it just yet.

Several owners of 2020 iMacs have reported strange graphical glitches on their screens and it doesn't seem to be related to heat or system load. It does seem to only affect iMacs with the AMD Radeon Pro 5700 XT GPU, however.

People have taken to Apple's support forums to complain about the issue as spotted by 9to5Mac. Others have taken to social media to complain about screen tearing issues, too.

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According to one person, the issue doesn't seem to be related to system load and the rest of the computer functions without any issues.

I've just received my new iMac and noticed that from time to time a line glitch appears on my screen. It's completely random, I thought it was related to intensive work/heat but sometimes even when the computer is idle I see the line on the screen.The iMac is running fine, I ran all sorts of benchmarks for CPU/GPU and it's all OK, but from time to time I see this annoying line on my screen.

The Radeon Pro 5700 XT GPU is the only thing in common across all of the iMacs that are displaying graphical issues and it's hoped that this can be fixed in software. All eyes are now on Apple to see if things can get ironed out sooner rather than later.

Oliver Haslam

Oliver Haslam has written about Apple and the wider technology business for more than a decade with bylines on How-To Geek, PC Mag, iDownloadBlog, and many more. He has also been published in print for Macworld, including cover stories. At iMore, Oliver is involved in daily news coverage and, not being short of opinions, has been known to 'explain' those thoughts in more detail, too.

Having grown up using PCs and spending far too much money on graphics card and flashy RAM, Oliver switched to the Mac with a G5 iMac and hasn't looked back. Since then he's seen the growth of the smartphone world, backed by iPhone, and new product categories come and go. Current expertise includes iOS, macOS, streaming services, and pretty much anything that has a battery or plugs into a wall. Oliver also covers mobile gaming for iMore, with Apple Arcade a particular focus. He's been gaming since the Atari 2600 days and still struggles to comprehend the fact he can play console quality titles on his pocket computer.