Public bug reported:
This new laptop has a Samsung NVME SSD. The SSD (or the SSD controller)
sometimes fails to resume from standby. The probability of this goes up
with the time the laptop is on standby & I have to save all files when I
put the laptop on standby at the end of the day as most likely it won't
resume successfully.
When I try & resume, normally the laptop appears to resume, I can unlock
the screen but there's no disk access. Any programs that were in memory
when I suspended the laptop are OK but everything else fails with an I/O
error.
The syslog includes entries like the following.
nvme nvme0: Device not ready: aborting reset
nvme nvme0: Removing after probe failure status: -19
Sometimes the first of these is repeated.
Here is the relevant line from lspci.
02:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe
SSD Controller SM981/PM981/PM983
$ lsb_release -rd
Description: Ubuntu 20.04 LTS
Release: 20.04
$ uname -a
Linux orion 5.4.0-40-generic #44-Ubuntu SMP Tue Jun 23 00:01:04 UTC 2020 x86_64
x86_64 x86_64 GNU/Linux
** Affects: linux-signed (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1888018
Title:
nvme0 does not resume from standby
Status in linux-signed package in Ubuntu:
New
Bug description:
This new laptop has a Samsung NVME SSD. The SSD (or the SSD
controller) sometimes fails to resume from standby. The probability of
this goes up with the time the laptop is on standby & I have to save
all files when I put the laptop on standby at the end of the day as
most likely it won't resume successfully.
When I try & resume, normally the laptop appears to resume, I can
unlock the screen but there's no disk access. Any programs that were
in memory when I suspended the laptop are OK but everything else fails
with an I/O error.
The syslog includes entries like the following.
nvme nvme0: Device not ready: aborting reset
nvme nvme0: Removing after probe failure status: -19
Sometimes the first of these is repeated.
Here is the relevant line from lspci.
02:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd
NVMe SSD Controller SM981/PM981/PM983
$ lsb_release -rd
Description: Ubuntu 20.04 LTS
Release: 20.04
$ uname -a
Linux orion 5.4.0-40-generic #44-Ubuntu SMP Tue Jun 23 00:01:04 UTC 2020
x86_64 x86_64 x86_64 GNU/Linux
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