5

I disabled most of my entries in /proc/acpi/wakeup/ to make sure only the power button and the laptop lid can resume my system, not the mouse or keyboard. The problem is: every time I reboot, the settings are reset for some reason.

Is there a way to make these changes permanent? There are some workaround out there that just put the commands into a script hooked to some wakeup routine, but is there really no other solution?

I'm using a Debian/Gnome Windows 10 dual boot laptop

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  • Can you set it in the bios? Or uefi as it probably is now.. – Guy Jan 19 '18 at 12:49
  • Nope I checked all my BIOS settings and found nothing helpful there – piegames Jan 19 '18 at 14:44
-1

The /proc is a virtual file system containing runtime system info. So its content resets on reboot.

To make the kernel/system settings persistent across reboots you can employ the sysctl. There are corresponding sysctl settings to the /proc ones.

So basically, you need to transform and put all your /proc/acpi/wakeup settings to the /etc/sysctl.conf file. This way they get loaded at boot. There is a HowTo guide.

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  • So, how exactly do I set OHC1 to disabled in /proc/acpi/wakeup? – piegames Jan 18 '18 at 9:34
  • Sorry, @piegames, this seems to require a script triggered on startup (in your case via systemd). The script really just needs to echo the values to /proc/acpi/wakeup. This should give you the idea: linuxconfig.org/… – Yuri Jan 18 '18 at 20:48
  • The systemd service unit running a script did the job for me. Please update your answer so that it also works without the links. – piegames Jan 23 '18 at 22:41
  • Okay it does not work completely: although the script works fine, changes to EHC3 (the one with my mouse on it) does not work when calling the script. I still need to call the command manually as su. – piegames Jan 24 '18 at 13:35
  • 6
    /proc/acpi/wakeup is not a child of /proc/sys, sysctl doesn't work here. – Erik Feb 12 '19 at 19:50
1

acpitool can be used for this apt install acpitool

And then sudo acpitool -W [some number]

where some number is device id from /proc/acpi/wakeup

maciej@michal:~$ sudo acpitool -W 22
  Changed status for wakeup device #22 (UHC6)

   Device   S-state   Status   Sysfs node
  ---------------------------------------
  1. PCE2     S4    *disabled  pci:0000:00:02.0
  2. PCE3     S4    *disabled
  3. PCE4     S4    *disabled  pci:0000:00:04.0
  4. RLAN     S4    *enabled   pci:0000:02:00.0
  5. PCE5     S4    *disabled
  6. PCE6     S4    *disabled
  7. PCE7     S4    *disabled  pci:0000:00:07.0
  8. PCE9     S4    *disabled
  9. PCEA     S4    *disabled
  10. PCEB    S4    *disabled
  11. PCEC    S4    *disabled
  12. SBAZ    S4    *disabled  pci:0000:00:14.2
  13. PS2K    S4    *disabled
  14. PS2M    S4    *disabled
  15. UAR1    S4    *disabled  pnp:00:03
  16. P0PC    S4    *disabled  pci:0000:00:14.4
  17. UHC1    S4    *disabled  pci:0000:00:12.0
  18. UHC2    S4    *disabled  pci:0000:00:12.1
  19. UHC3    S4    *disabled  pci:0000:00:12.2
  20. USB4    S4    *disabled  pci:0000:00:13.0
  21. UHC5    S4    *disabled  pci:0000:00:13.1
  22. UHC6    S4    *disabled  pci:0000:00:13.2
  23. UHC7    S4    *enabled   pci:0000:00:14.5
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  • 1
    It was asked for a permanent solution. This one is only temporary. – Matthias Lohr Jun 1 '19 at 10:36
0

Eric Garrido has a script in /etc/rc.local that echo's those devices that are allowed to wake up his system, to /proc/acpi/wakeup.

for i in `/bin/grep USB /proc/acpi/wakeup | /usr/bin/awk '{print $1}'`; 
do 
    echo $i > /proc/acpi/wakeup; 
done
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0

For a USB mouse or keyboard, you can use a udev rule to make the setting permanent. First, look up the PCI vendor ID of your mouse/keyboard using lsusb. For my mouse, it's 046d:

Bus 001 Device 006: ID 046d:c52b Logitech, Inc. Unifying Receiver

Then create a "rules" file like my /etc/udev/rules.d/logitech.rules, only replace "046d" with the vendor ID of your own device:

ACTION=="add", SUBSYSTEM=="usb", DRIVERS=="usb", ATTRS{idVendor}=="046d", ATTR{power/wakeup}="disabled"
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