I remember on my old Macbook, when I closed the lid, I could open it one week later and it lost a few percentage points of energy over the week (about 10%).
When I do this with my xps13, the first problem is, that it doesn't really go to standby, when I close the lid, so I have to do the process manually.
Click the lock symbol:
Now the power LED is still on:
So I have to move the mouse again to end the black screen then press the pause button
As I took the picture I had 66% again, but it was at 55%, so I have lost 45% of energy in only ONE night in standby! So whats the trick here? Is there a feature to keep the energy in standby mode for 1-2 weeks or is this not possible with Ubuntu?
PS: I have also to mention that on Ubuntu I have closed ALL programs before activating the standby mode. On the Macbook I had about 10-20 programs open before just closing the lid and putting it to standby automatically.
From comments:
cat /sys/power/mem_sleep
results in
[s2idle] deep
In your case "s2idle" sleep mode is active and intended but you probably should have "deep" active. There is a bug with the s2idle mode. This should be fixed with kernel version 5.3. To switch to deep sleep mode, do
and change
with
and reload it with
Then reboot and try suspend again. You can do these from command line:
and/or