Problem apparently solved (i.e., SDD wakes up from S3, can remove
"mem_sleep_default=shallow" from grub) with today's BIOS update to
2.0.2. Or with some firmware update associated with it. The problem with
Dell is that these firmware updates declare to address only obscure
security tickets, not
** Description changed:
System apparently correctly suspends (in various ways - from gnome menu,
with pm-suspend on bash, with echo ... > /sys/power/pm_test) and resumes
bringing up X, gnome, consoles, mouse, keyboard - but not the nvme SSD.
Since I have the OS on that, no command relying
Attaching the dumps of:
cat /proc/acpi/wakeup > wakeup
echo > /sys/power/pm_test
sync && echo 1 > /sys/power/pm_trace && pm-suspend
dmesg > dmesg.
** Attachment added: "wakeup"
https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1855892/+attachment/5311723/+files/wakeup
--
** Attachment added: "dmesg.platform"
https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1855892/+attachment/5311726/+files/dmesg.platform
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** Attachment added: "dmesg.processors"
https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1855892/+attachment/5311727/+files/dmesg.processors
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** Attachment added: "dmesg.core"
https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1855892/+attachment/5311728/+files/dmesg.core
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cat /sys/kernel/debug/suspend_stats > suspend_stats
** Attachment added: "suspend_stats"
https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1855892/+attachment/5311729/+files/suspend_stats
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** Attachment added: "dmesg.freezer"
https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1855892/+attachment/5311724/+files/dmesg.freezer
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** Attachment added: "dmesg.devices"
https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1855892/+attachment/5311725/+files/dmesg.devices
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** Attachment added: "dmesg after an unsuccesful wake (with nvme disk off) from
S3"
https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1855892/+attachment/5311508/+files/dmesg.txt
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