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I've been using ubuntu for a while and I've never encountered a problem. However, yesterday after suspending the laptop, when I try to resume screen goes for blank(Neither mouse nor keyboard action works).

I've tried several solutions posted here but none of them worked like editing grub file for AMD/Nvidia drivers. The one thing I've noticed that when executing cat /sys/power/state command it shows freeze mem disk. Maybe something related with memory that causes freeze on suspend, but honestly don't have idea for a exact reason

System Details:

OS: Ubuntu LTS 20.04, Kernel 5.8.0-40-generic CPU: AMD A6-6310 APU with AMD Radeon R4 Graphics GPU: Mullins [Radeon R4/R5 Graphics] RAM: 8GB

Thanks in advance

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  • There's a new kernel bug that might be at fault. Try booting with an older kernel to see if you still have the problem.
    – Paddy Landau
    Aug 14, 2021 at 5:42

4 Answers 4

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On a freshly installed Ubuntu 20.04 with the same problem, i.e. blank screen after resuming from suspend; on a different Asus GL502 laptop with GPU GeForce GTX 1060, I installed the Nvidia drivers with

sudo ubuntu-drivers autoinstall

(which replaced the Nouveau display driver from xserver-xorg-video-nouveau). Now it works perfect.

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Try ctrl+clt+f2 (this should turn your whole screen into a terminal) and the alt+f7 (to come out of it.)

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Your problem is... driver for Graphics GPU: Mullins [Radeon R4/R5 Graphics], not yet available... you may try this work around:

sudo nano /etc/default/grub

Edit the GRUB_CMDLINE_LINUX_DEFAULT line as shown below:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset resume=UUID=fe4994e1-975c-47eb-97d9-e779340a84be"
  • nomodeset is important, as long as mullins driver not yet available
  • UUID=fe4994e1-975c-47eb-97d9-e779340a84be is your swap partition, must add also at /etc/fstab

After doing so, update your grub:

sudo update-grub

Continue with editing /etc/initramfs-tools/conf.d/resume:

sudo nano /etc/initramfs-tools/conf.d/resume

Edit the RESUME=UUID line:

RESUME=UUID=fe4994e1-975c-47eb-97d9-e779340a84be
  • UUID=fe4994e1-975c-47eb-97d9-e779340a84be is your swap partition, must add also at /etc/fstab

Update your initramfs:

sudo update-initramfs -c -k all

You may also want to doing hibernate without asking password. it still require sudo, but you may skip entering sudo password (only for hibernate).

sudo nano /etc/sudoers

Add:

User_That_You_Allowed_To_Do_Hibernate ALL= NOPASSWD: /usr/bin/systemctl hibernate
  • login to created user

sudo systemctl hibernate

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I was facing the same issue, This question fits a similar description and fixed the problem for me, I followed the instructions in the accepted answer. The only change is that the file in

/usr/share/X11/xorg.conf.d/10-amdgpu.conf

already existed for me, so I added the lines described in the links inside instead of making a new file. I'm running on Ubuntu 20.04.4 and kernel 5.13.19

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