Nice job !
How can I known when this patch was applied ? Witch kernel version ? Witch
ubuntu kernel version ?
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https://bugs.launchpad.net/bugs/1810619
Title:
Sleep mode
Today with 4.18.0-16-generic and s2idle activated, the consumption is
lesser than in the past.
100 % at 0h00 : I leave my laptop without suspend it. KDE suspend my laptop
after 15 min.
95% at 7h40
I've powertop enabled.
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Today, with freshly installed 4.18.0-16-generic, it seems to be a better
behavior.
With s2idle :
100% battery at 0h00
95% at 7:40
$ sudo cat /sys/power/mem_sleep
[s2idle] deep
Moving mouse (connected via bluetooth) resumes the laptop.
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Powertop return consumption about 5,5W/h.
KDE doesn't said me the same autonomy... 2h actually in taskbar KDE but
posertop said me 8h34 (with less than 4,5W/h) but sometimes posertop
return 1h20.
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Same behavior. Without AC and without adapter :
michel@skeleton:~$ sudo powertop --auto-tune
modprobe cpufreq_stats failed23 mesures préalables chargées
Impossible de charger à partir du fichier
/var/cache/powertop/saved_parameters.powertop
File will be loaded after taking minimum number of
@superm1
1) When I'm on battery, there is just an USB-C adapter with just a nano
receiver for my cordless mouse. On AC, there is a USB-C all-in-one which is
plugged in (output DVI, another nano USB receiver, ethernet)
2)
$ sudo powertop with --auto-tune
modprobe cpufreq_stats failed19
Yes, I've tested a few days ago and I believe the same behavior appears
: no really sleep mode, battery in discharge. Just the screen black.
But I've non tested with
$ sudo sh -c 'echo mem > /sys/power/state'
$ sudo sh -c 'echo deep > /sys/power/mem_sleep'
I don't know the default value of this
> Do you mean a fully charged battery only lasts 4 ~ 6 hours?
I will do some other tests next days but if a suspend my laptop at 1:00
with a battery loaded about 40%, when I try to resume at 7:00, the
laptop refuse to resume (battery empty). I have to plug in the charger
in order to resume
> > - no really suspend mode (the battery continue to discharge like the laptop
> > is in activity)
>How much does it use during suspend?
About 4 - 6 hours.
> > - resume by touch the keyboard
> This is intended. Both macOS and Windows do this.
With 4.18-10, I don't have this behavior. Is it
I've tested with https://people.canonical.com/~khfeng/lp1810619/
Bug still present :
- no really suspend mode (the battery continue to discharge like the laptop is
in activity)
- resume by touch the keyboard
- sudo sh -c 'echo disabled > /sys/bus/serio/devices/serio0/power/wakeup'
disabled the
When I do some test, the screen goes off but the laptop doesn't seems to
enter in sleep mode. The battery continue to discharge after enter in
sleep mode : 39% when I stopped to work and 0% a few hours after (9
hours). Fans are stopped.
With :
sudo sh -c 'echo disabled >
When I do some test, the screen goes off but the laptop doesn't seems to
enter in sleep mode. The battery continue to discharge after enter in
sleep mode : 39% when I stopped to work and 0% a few hours after (9
hours). Fans are stopped.
With :
sudo sh -c 'echo disabled >
** Attachment added: "dmesg.log"
https://bugs.launchpad.net/ubuntu/+source/linux-meta/+bug/1810619/+attachment/5227106/+files/dmesg.log
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** Attachment added: "lspci-vnvn.log"
https://bugs.launchpad.net/ubuntu/+source/linux-meta/+bug/1810619/+attachment/5227114/+files/lspci-vnvn.log
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Public bug reported:
On my Dell XPS 13 laptop (9370), the sleep mode dosn't work anymore with
linux-image-4.18.0-13.
The screen goes off correctly but any touch resume the laptop.
This is the log :
Jan 5 11:15:25 skeleton systemd[1]: Reached target Sleep.
Jan 5 11:15:25 skeleton systemd[1]:
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