2mo ago

Does anyone else's AMD 7900 green screen?

Sometimes my entire screen will turn green requiring a reboot. This has happened while gaming but also while watching videos in browser. I'm trying out undervolting/underclocking using LACTL. Have you experienced this? What was the cause and how did you fix it?

7 comments

What is your:
Kernel
Linux-firmware
Mesa
Versions?
Additionally, what does the kernel logs tell you when you get a green screen?
Seems to be a common issue. Lots of posts point to the PSU as the issue. Do a search on your card and green screen + linux and see all the results. Good luck.
I've experienced random stuff like that in past - not exactly the same though and not that chip.
I'd suspect power issue, either cpu and/or gpu causing a spike that results in some voltage rail to go unstable. More likely GPU, unless your applications are really thrashing all cpu cores.
How old PSU? how much headroom? how good brand of PSU? Might also be a motherboard power management issue.
Also - it might not hurt just to unplug and reseat every power cable.
- Please excuse me dropping off the face of the Earth for a few days. Power supply is Corsair 750 W. Linux 6.14.6-109.bazzite.fc42.x86_64 AMD Ryzen 7 9700X (16) @ 5.58 GHz
  
  That PSU sounds good enough to me.
  Could be worth a motherboard firmware update?
  and i would double check all the power cables.
  It looks ike mangohud is an application to monitor stuff. I've never used it but you could give that a go - see if you're ever getting close to the 750W.
Not a 7900 but my 5900 does for sure.

7 comments