Ferry, Chris,
I thought you were trying to test hibernation. Let's switch back to
suspend to mem.
The first thing is to figure out what suspend mode you are using:
1. boot with the same kernel with TPM disabled.
2. cat /sys/power/mem_sleep,
echo 'N' > /sys/module/printk/parameters/console_suspend
echo 'Y' > /sys/module/printk/parameters/initcall_debug
and leverage pm_test mode to narrow down:
3. echo different mode to /sys/power/pm_test
start from right to left (freezer to devices to platform...)
[none] core processors platform devices freezer
check if the system could resume back within 5 seconds.
For example:
echo freezer > /sys/power/pm_test
echo mem > /sys/power/state
if succeed to resume back, then:
save the dmesg and launch the next test mode:
echo devices> /sys/power/pm_test
echo mem > /sys/power/state
and go on util you see a hang during resume.
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https://bugs.launchpad.net/bugs/1848771
Title:
Reboot after resume from suspend (deep)
Status in linux package in Ubuntu:
Incomplete
Status in ubuntu-release-upgrader package in Ubuntu:
Invalid
Bug description:
After upgrading to Kubuntu Eoan (19.10) yesterday, my laptop crashes
after resume from suspending. This is regardless the way of suspending
(closing lid, selecting suspend from sddm, systemctl suspend).
The journal shows:
ferry@chromium:~$ journalctl -b -1 -e
..
sddm[1106]: Message received from greeter: Suspend
NetworkManager[836]: <info> manager: sleep: sleep requested (sleeping: no
enabled: yes)
NetworkManager[836]: <info> device (60:73:BC:BA:B8:68): state change:
disconnected -> unmanaged (reason '
NetworkManager[836]: <info> device (60:73:BC:23:8F:3E): state change:
disconnected -> unmanaged (reason '
NetworkManager[836]: <info> device (p2p-dev-wlp1s0): state change:
disconnected -> unmanaged (reason 'sle
NetworkManager[836]: <info> manager: NetworkManager state is now ASLEEP
systemd[1]: Reached target Sleep.
systemd[1]: Starting Suspend...
systemd-sleep[1238]: Suspending system...
kernel: PM: suspend entry (deep)
On resume (keypress, open lid) resume starts but immediately crashes
and reboots.
The laptop is an Acer 720p Chromebook with Chromium replaced and
working fine with Kubuntu since 5 years or so.
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: ubuntu-release-upgrader-core 1:19.10.15
ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1
Uname: Linux 5.3.0-18-generic x86_64
ApportVersion: 2.20.11-0ubuntu8
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: KDE
Date: Fri Oct 18 18:45:53 2019
InstallationDate: Installed on 2017-07-13 (826 days ago)
InstallationMedia: Kubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: Upgraded to eoan on 2019-10-17 (0 days ago)
VarLogDistupgradeTermlog:
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