This seems to be caused by Focal's 5.4 kernel: after booting Ubuntu
19.10's linux-image-5.3.0-40-generic (5.3.0-40.32), which remained on
the system after upgrading to 20.04, hibernate-disk (and resume
afterwards) works fine.
** Also affects: linux-5.4 (Ubuntu)
Importance: Undecided
Stat
To ensure that hibernate/resume *should* work properly in a KVM
environment, I reproduced the above steps with Ubuntu 19.10 Eoan Desktop
(x86_64). After applying one missing step (see below), hibernate-disk
successfully hibernated the machine state in /swapfile and powered off
the VM; restarting k
Reproducible from a clean install of focal daily within KVM (on an
x86_64 host):
wget
http://cdimage.ubuntu.com/kubuntu/daily-live/20200311/focal-desktop-amd64.iso
qemu-img create -f qcow2 ubuntu.qcow2 10G
kvm -m 4096 -smp 2 -cdrom focal-desktop-amd64.iso ubuntu.qcow2
[do a minimal install]
[boot
Additional info: This has been observed on a Lenovo ThinkPad T460p, BIOS
version R07ET90W (2.30). dmesg output attached.
** Attachment added: "dmesg output"
https://bugs.launchpad.net/ubuntu/+source/hibernate/+bug/1866984/+attachment/5335767/+files/dmesg
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: hibernate (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1866984
Title:
