RX580 Whitenoise/flickering/artifacts

[markmac]

I got this strange problem.
At random moments one of my screen is flickering and showing some kind of snow/whitenoise. See screenshot.
Sometimes this happens after 5 mins after i started the computer. But sometimes it takes up to 5 or 6 hours.
Is this problem also happening with other users ?.
I Do not use whatevergreen or something because the pulse rx580 is working native out of the box.
My screens are both connected with HDMI.
I tried changing the SMBIOS but it did not help.

 

[Macmagoo]

Doesn't happen with my Pulse RX580.

 

[markmac]

Doesn't happen with my Pulse RX580.

Strange. What smbios are you using ?. and are you using whatevergreen or other kexts ?.
Maybe you could share your EFI so we can help other Pulse RX580 users

 

[Macmagoo]

SMBios is 17,1. The only extra kexts I have over and above the normal ones are Lilu and Whatevergreen.

 

[markmac]

Ok thanks ! It is a bit quiet so i think i am the only one with this problem. Will figure it out.

edit: solved by buying a rx580