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mystdeim
Asked: 2016-06-30 22:11:35 +0800 CST

Can I resume after suspend by pressing a key on an external keyboard?

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Can I resume Ubuntu after suspend by shortcut from keyboard?

I have a docking station with thinkpad and an external monitor. My laptop is always closed, so I need to open it and close again to resume system, it's annoying.

suspend

1 Answers

  1. If the external keyboard is USB, you probably can, although it depends on your motherboard.

    Check /proc/acpi/wakeup it shows all supported wakeup sources and their states. To toggle the state, simply echo the wakeupsource name back to the same file.

    Example, to enable/disable wakeup from a usb device on my system, i do:

    # cat /proc/acpi/wakeup |grep HC
EHC1      S4    *disabled  pci:0000:00:1d.0
EHC2      S4    *disabled  pci:0000:00:1a.0
XHC   S4    *disabled  pci:0000:00:14.0
# echo XHC > /proc/acpi/wakeup 
# cat /proc/acpi/wakeup |grep HC
EHC1      S4    *disabled  pci:0000:00:1d.0
EHC2      S4    *disabled  pci:0000:00:1a.0
XHC   S4    *enabled   pci:0000:00:14.0
#
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