Ubuntu
linux-hwe-5.13 package

[amdgpu] Static-noise-like effect

Bug #1958523 reported by Mariusz
38
This bug affects 7 people
Affects Status Importance Assigned to Milestone
linux-hwe-5.13 (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

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.

Tags: focal amdgpu
Revision history for this message
Mariusz (mapniv) wrote :
Paul White (paulw2u)
affects: ubuntu → linux-hwe-5.13 (Ubuntu)
tags: added: focal
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

Sounds like bug 1958412 so we should track it there.

tags: added: amdgpu
summary: - Static-noise-like effect
+ [amdgpu] Static-noise-like effect
Revision history for this message
Launchpad Janitor (janitor) wrote :

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

Changed in linux-hwe-5.13 (Ubuntu):
status: New → Confirmed
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

While the problem is happening please run:

  journalctl -b0 > journal.txt

and attach the resulting text file here.

Changed in linux-hwe-5.13 (Ubuntu):
status: Confirmed → Incomplete
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

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

Revision history for this message
Mariusz (mapniv) wrote :

Attached journal.txt.

Revision history for this message
Mariusz (mapniv) wrote :

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.

Revision history for this message
Mariusz (mapniv) wrote :

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

Daniel van Vugt (vanvugt)
Changed in linux-hwe-5.13 (Ubuntu):
status: Incomplete → New
Revision history for this message
Gaurav (gauddasa) wrote :

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

Revision history for this message
Launchpad Janitor (janitor) wrote :

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

Changed in linux-hwe-5.13 (Ubuntu):
status: New → Confirmed
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

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

Changed in linux-hwe-5.13 (Ubuntu):
status: Confirmed → Incomplete
Revision history for this message
Mariusz (mapniv) wrote :

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.

Daniel van Vugt (vanvugt)
Changed in linux-hwe-5.13 (Ubuntu):
status: Incomplete → Confirmed
Revision history for this message
David Rees (drees) wrote :

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.

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