[amdgpu] Static-noise-like effect

[Mariusz]

Hello,

I have encountered a bug in Ubuntu. When I turn on my laptop and log in (I can see the login screen) I see static-noise-like effect. I was able to make a screenshot and it depicts my desktop as if the problem didn't exist.
Switching to stable (non-HWE) kernel solves the issue.

My desktop environment is GNOME.

[Daniel van Vugt (vanvugt)]

Sounds like bug 1958412 so we should track it there.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel van Vugt (vanvugt)]

While the problem is happening please run:

  journalctl -b0 > journal.txt

and attach the resulting text file here.

[Daniel van Vugt (vanvugt)]

Please also attach a photo of the problem. I am wondering if bug 1961605 is similar.

[Mariusz (mapniv)]

Attached journal.txt.

[Mariusz (mapniv)]

My screen looks like this:
https://postimg.cc/Tp2LJB4N
The right side of the screen changes very quickly. Sometimes it is black and sometimes it looks like the rest of the screen.

[Mariusz (mapniv)]

Right now I'm using OEM kernel and everything works well.

[Gaurav (gauddasa)]

I am seeing this static since kernel 5.13.0-28 and even now after today's update to kernel 5.13.0-35 the static still appears for a while while rebooting / shutdown.

The issue is same, "Laptop internal display shows random looking 'static' after it's turned off"

This is xubuntu 20.04 running on ASUS Laptop with AMD Ryzen 7 3750H with Radeon Vega Mobile Gfx

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel van Vugt (vanvugt)]

Mariusz, what kernel version are you now seeing this in?

[Mariusz (mapniv)]

I have following kernels installed:
- 5.13.0-35-generic
- 5.14.0-1024-oem
- 5.14.0-1027-oem

Kernel 5.13 does not work. The other two do work.

I see the problem on Lenovo Ideapad 320.

[David Rees (drees)]

I am seeing this same issue (static screen) on a fully updated Jammy system. It is a Beelink Renoir system and I have two external monitors plugged in via HDMI.

It seems to happen fairly randomly, but most often after the monitors go to sleep and then are woken up. It resolves itself eventually and doesn't seem to reoccur as long as I'm active on the system. Only one of the screens will go into static when it happens. Manually cycling power on a monitor can help bring it back.

Currently on kernel 5.19.0-41-generic. Any workarounds or fixes? Currently using Xorg display, haven't tried Wayland yet.