So, a strange thing happened. In order to mitigate the problem, I
decided to switch to having the computer hibernate instead of suspend (I
outline below the steps I did to do that). And then, on a whim, I tried
suspending again. And it stopped crashing, even after I switched back to
suspend completely. I didn't do any software updates or, as far as I
know, anything else in the interim. So right now, I have my computer set
to suspend and it seems to work fine. I was waiting a few days to see if
the problem reemered but right now, I can't reproduce it at all.
For your edification (and maybe for other people), here were the steps I
followed:
$ gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type
'hibernate'
$ gsettings set org.gnome.settings-daemon.plugins.power \
lid-close-ac-action 'hibernate' \
&& gsettings set org.gnome.settings-daemon.plugins.power \
lid-close-battery-action 'hibernate'
- In /etc/systemd/logind.conf, make sure '#HandleLidSwitch=suspend' is
commented out, and add HandleLidSwitch=hibernate
- And then I saved the attached file to
/etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla
To switch back, I reran the shell commands with 'suspend' instead of
hibernate and then removed the changes to the config files.
** Attachment added: "com.ubuntu.enable-hibernate.pkla.disabled"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1661741/+attachment/4814420/+files/com.ubuntu.enable-hibernate.pkla.disabled
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https://bugs.launchpad.net/bugs/1661741
Title:
[Dell Inc. Latitude E5470] suspend/resume failure
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