Battery consumtion when turned off

[997I]

Now, I can’t find the bug report, but the content is here:

`Summary: Regression in kernel 6.12.0-160000.37 causes excessive battery drain on shutdown (ACPI S5 failure) on HP EliteBook

Description:
After upgrading from kernel 6.12.0-160000.36 to 6.12.0-160000.37, the system fails to properly enter ACPI S5 state during shutdown. The keyboard remains powered and battery drains significantly even when the system appears shut down. This worked correctly on kernel .36.

System Information:

• Hardware: HP EliteBook
• Distribution: openSUSE Leap 16
• Kernel A (working): 6.12.0-160000.36
• Kernel B (broken): 6.12.0-160000.37
• Desktop Environment: GNOME

Symptoms:

1. On shutdown with kernel 6.12.0-160000.37:

   • Keyboard backlight remains lit after shutdown
   • Battery drains approximately [Fyll i % på X timmar, t.ex. 10% per natt]
   • System does not appear to fully power off (ACPI S5 not reached)

2. On shutdown with kernel 6.12.0-160000.36:

   • Keyboard turns off completely after shutdown
   • Battery drain normal (<3% over several hours)
   • Proper ACPI S5 shutdown achieved

Steps to Reproduce:

1. Boot into kernel 6.12.0-160000.37
2. Ensure battery is charged
3. Perform normal shutdown: sudo systemctl poweroff
4. Disconnect AC adapter
5. Wait 2-4 hours
6. Reconnect and check battery level
7. Observe keyboard LED still lit or excessive battery drain

Expected Result:

• System enters full ACPI S5 power-off state
• No components remain powered (keyboard LEDs off)
• Minimal battery drain (<1-2% per 24 hours)

Actual Result:

• Components remain partially powered
• Keyboard backlight stays on
• Significant battery drain (% per night)
• ACPI S5 state not properly achieved`[quote=“deano_ferrari, post:20, topic:195509, full:true”]
  That’s a good find. In general, a good idea to post a link to it here for others to find if interested.

You could also consider trying the current stable kernel as well…
https://en.opensuse.org/SDB:InstallNewerKernel