iMac 2020, 5700XT - graphical glitch?

[PBG4 Dude]

Has this issue been solved yet? Was it hardware och software/driver error?

Which issue do you mean? The white line glitches issue that started this thread was resolved in 2020. The split screen true tone issue on shutdown has been resolved as well from what I’ve seen. I’m not in Sonoma so I can’t tell you if it came back, but for me I don’t have any issues in macOS.

 

[anthony13]

Mine was fully resolved with a software update.

 

[Schnauzer World]

Has this issue been solved yet? Was it hardware och software/driver error?

Mine was fixed about four or five weeks after I received my 2020 iMac new. It was a software/driver issue.