Suspend works on Ubuntu 21.04

[cies]

I followed the instructions in this repo for getting suspend to work on Ubuntu 21.04.

It did not work, and as suggested in issue #26 this may well be due to a regression in the Linux 5.11 kernel.

So I upgraded to the 5.13.9 kernel with this guide. While is worked, it showed a list of Possible missing firmware /lib/firmware/amdgpu/* errors. I fixed those errors by following this guide.

I now have suspend working on my Yoga Slim 7. Woop, woop.

[thomanq]

I confirm that this is working. :)

Side note:
I installed the unsigned kernel from here after disabling secure boot with sudo mokutil --disable-validation.
I tried to leave Secure Boot on and to install the mainline 5.13 kernel following:

https://ubuntu.com/blog/how-to-sign-things-for-secure-boot
https://gloveboxes.github.io/Ubuntu-for-Azure-Developers/docs/signing-kernel-for-secure-boot.html

but I couldn't get it to accept my signed kernel and kept hitting:
error: /vmlinuz-5.13.11-051311-generic.signed has invalid signature

If someone knows how to sign unsigned kernels, then I'd be glad to read your solution :)

[jrandiny]

Hm I will try kernel 5.13 as soon as possible because a lot of people seems to have found success using it

[jrandiny]

@thomanq regarding signing kernel I think there might be problem with the machine key not enrolled or some failure in your signing process. You can try listing the installed key by using mokutil --list-enrolled. In addition to that, I think the gist to I link on the readme is one of the best way to sign unsigned kernel https://gist.github.com/maxried/796d1f3101b3a03ca153fa09d3af8a11

Lastly, if this don't solve your problem, try opening new issues specific to your problem

Thanks :)

[arush-sal]

Tried your listed steps with v5.13.11 from Ubuntu Mainline Kernel packages(had to upgrade to 21.04 from 20.04`) but can confirm that suspend works flawlessly now.

[werzum]

I tried so many things and finally found this thread- thanks! The kernel update works as well for Lenovo IdeaPad 1405ARE, and now suspend is finally working. Since I was running 20.04, I also had to upgrade to 21.04, but from then on it was smooth sailing.

[kanflo]

I tried 5.13.19, 5.14.21 and 5.15.13 and they all seem to work great on 21.04 when it comes to suspend. If suspending by closing the lid, I need to press a key when opening the lid but that is a minor annoyance.

[kanflo]

Have anyone gotten sleep to work on eg. 5.13.19 without the DSDT patch?

I spent quite some time failing to go get my second 14ARE05 to sleep, and wake from sleep. I tried 5.13.19 on fresh installs of

• 21.04
• 21.10
• 20.04.3 upgraded to 21.04

and none of them would wake from sleep...

When I succeeded in getting sleep to work on my first 14ARE05, I had applied the DSDT patch (something I forgot I did) and that seems to be key.

For reference, here is relevant output when using the acpi_s3_override in grub

johkan@flotop:~$ grep "s3\|sleep" /etc/default/grub
GRUB_EARLY_INITRD_LINUX_CUSTOM="acpi_s3_override"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash mem_sleep_default=deep"
johkan@flotop:~$ dmesg | grep ACPI:\ \(
[    0.280414] ACPI: (supports S0 S3 S4 S5)
johkan@flotop:~$ uname -a
Linux flotop 5.13.19-051319-generic #202109181232 SMP Sat Sep 18 12:56:56 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
johkan@flotop:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 21.04
Release:	21.04
Codename:	hirsute
johkan@flotop:~$ cat /sys/power/mem_sleep 
s2idle [deep]

and here is the same output without the acpi_s3_override in grub:

johkan@flotop:~$ grep "s3\|sleep" /etc/default/grub
johkan@flotop:~$ dmesg | grep ACPI:\ \(
[    0.280414] ACPI: (supports S0 S4 S5)
johkan@flotop:~$ uname -a
Linux flotop 5.13.19-051319-generic #202109181232 SMP Sat Sep 18 12:56:56 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
johkan@flotop:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 21.04
Release:	21.04
Codename:	hirsute
johkan@flotop:~$ cat /sys/power/mem_sleep 
[s2idle]

[martijnboers]

Updated to 5.13.9 without any adjustments to my yoga and can confirm sleep is working consistently