Score:0

Battery Drains on Suspend - Ubuntu 18.04 - ASUS Vivobook 15

ca flag

The battery drains fully on suspension for Ubuntu 18.04 on my ASUS Vivobook 15. This is telling me that I'm not actually going into suspension. What am I missing?

One of the solutions suggested was to do the following steps:

I found out that you need add mem_sleep_default=deep to the Kernel boot parameter:

  • Open the GRUB file: sudo -H gedit /etc/default/grub
  • Find the line: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
  • Replace it by: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash mem_sleep_default=deep"
  • Update GRUB file: sudo update-grub

I have completed those steps, however upon waking my laptop from suspension, I found that it was drained of all of its battery. This is not a case of a bad battery either, as this device is dual-booted with Windows 11 and I do not run into this issue when using Windows 11.

Any reasons for why this may be happening?

J-Cake avatar
in flag
What happens when you hibernate instead of suspend?
AngoMango avatar
ca flag
@J-Cake It looks like hibernating shaves off about 2% of charge after 10 minutes. Is this expecting from hibernation?
J-Cake avatar
in flag
Hibernation is the computer completely shut down. In an ideal situation, your computer should not lose any power whatsoever. But given that it does, even while shut down, I suspect it to be a hardware issue, as what happens after shutdown is beyond the control of the operating system. Mind me asking how old the computer/battery is?
AngoMango avatar
ca flag
@J-Cake The computer is about a year old after purchase along with the battery. However, these issues aren't persistent with my Windows boot, so could this be attributed to Ubuntu?
J-Cake avatar
in flag
In my case, it didn't help at all, but you could try killing the upower service, and seeing what happens. Don't worry, this is a completely non-destructive action, and will be running again at next boot. ```systemctl stop upower```
I sit in a Tesla and translated this thread with Ai:

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.