Score:2

Ubuntu 20.04 wakes up to pixelated static screen

us flag

Issue:
When I wake up my computer after suspending it, I can only see a pixelated static screen. I cannot go further from this screen, so I always end up rebooting the computer. This issue only happens after sleep, never after reboot or when turning on the computer.

System:
Model: ThinkPad E14 Gen 2 (14”) AMD Laptop
Processor: AMD® Ryzen 5 4500u with radeon graphics × 6
Graphics: AMD® Renoir
OS: Ubuntu 20.04 LTS

Extra info:
I have tried updating the system again and reinstalling the drivers, but this didn't solve the problem.

Extra info 2 (edit):
When connected to a monitor, the monitor does show the normal screen, but the laptop screen is still pixelated.

Maheswar KARAKKATTU KISHOR KUM avatar
Are you sure your RAM is working?
us flag
As far as I can see it is working, at least before suspension
ph flag
I seem to have the same with a 4750U. Happens on suspend/resume, or if I turn the display on/off when connected to an external monitor. I updated system firmware to 1.35 just before this started happening, though that revision dates from 2021-07-13. I boot into a live 20.4.3 and it doesn't happen. Reverting system firmware didn't help. Only happens on internal screen, not external monitor.
pdpino avatar
in flag
Anyone still having this issue can look at more options: [Fuzzy static Noise Screen after awakening from suspend](https://askubuntu.com/questions/1383378/fuzzy-static-noise-screen-after-awakening-from-suspend)
Score:0
bl flag

I just started having the same problem with my Acer Swift 3 (AMD Ryzen 7 4700U with Radeon graphics) on Ubuntu 20.04.3.

My kernel was a 5.13 version. When I chose a 5.11 kernel in Grub I didn't see the issue reappear. And today I updated to version 5.15.16 and I haven't seen it reoccur since. The release notes mention updates for AMD GPUs, so hopefully that's the fix for our problem.

(There are different ways to do the kernel update, but I just downloaded the 3 appropriate deb files for my system, ran sudo dpkg -i *.deb, and disabled secure boot on my machine)

us flag
Thanks! I tried upgrading the kernel to the 5.15.16 version and it solved the issue
billy avatar
bl flag
Great, thanks for the update, glad it worked!
Score:0
us flag

I've faced the same issue recently and confirm that up-/down-grading the Linux kernel, as previousuly mentioned by billy helps.

I've tried with 5.11.* Kernel and now running on 5.15.16, since most recent 5.* version. However, I've purged Nvidia 470* proprietary drivers to get image on external monitors.

Here are more details to my machine:

Kernel: Linux 5.15.16-051516-generic #202201200437 SMP Thu Jan 20 10:00:11 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Ubuntu Version: 20.04.3 LTS
Nvidia driver: X.OrgX Server (open Source)
Processor: AMD® Ryzen 7 4800h with radeon graphics × 16 (Renoir)
Graphics card: Nvidia TU106 [GeForce RTX 2060], driver=nouveau
wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.15.16/amd64/linux-headers-5.15.16-051516_5.15.16-051516.202201200437_all.deb

Files I've used for kernel upgrade:

wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.15.16/amd64/linux-image-unsigned-5.15.16-051516-generic_5.15.16-051516.202201200437_amd64.deb

wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.15.16/amd64/linux-modules-5.15.16-051516-generic_5.15.16-051516.202201200437_amd64.deb
us flag
Thanks! I tried upgrading the kernel to the 5.15.16 version and it solved the issue
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