This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1860390
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1860390
Title:
Dell XPS 13 (9360) defaults to s2idle sleep/suspend instead of deep
(suspend to ram)
Status in linux package in Ubuntu:
Incomplete
Bug description:
This is a reintroduction of
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1808957 which I am
experiencing with Ubuntu 20.04 fully upgraded on a Dell XPS 13 9360. This did
not happen before in Ubuntu 19.04.
It seems that the Dell 9360 is set to go into s2idle mode rather than
deep sleep, forgoing significant power savings.
I have confirmed this by suspending and then checking:
sudo journalctl | grep "PM: suspend" | tail -2. If the output is
PM: suspend entry (s2idle)
PM: suspend exit
cat /sys/power/mem_sleep showed
[s2idle] deep
As a temporary fix, I typed
echo deep > /sys/power/mem_sleep
as a root user (sudo -i).
Then the output of cat /sys/power/mem_sleep was
s2idle [deep]
After suspending now,
sudo journalctl | grep "PM: suspend" | tail -2 returns
PM: suspend entry (deep)
PM: suspend exit
I have made this permanent by editing
/etc/default/grub
and replacing
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
with
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash mem_sleep_default=deep"
then regenerating my grub configuration (sudo update-grub).
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1860390/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
