Arch Linux

pauper

Member

Registered: 2012-06-25

Posts: 38

Problems with resume from suspend with ethernet andbluetooth (wiimote)

I've been trying to get my mediacentre to suspend and resume reliably, initially I found that I had no ethernet connection on resume and after finding several similar reports from some time back I tried

#echo "on" > /sys/class/net/enp2s5/power/control

without success.

My networking is handled entirely by dhcpcd - journalctl reports after resume:

dhcpcd[211]: enp2s5: carrier lost
dhcpcd[211]: enp2s5: deleting route to 192.168.1.0/24
dhcpcd[211]: enp2s5: deleting default route via 192.168.1.3

I eventually wrote a script to restart the network device on resume in /usr/lib/systemd/system-sleep:

#!/bin/sh
case $1/$2 in
  pre/*)
    echo "Going to $2..."
    ;;
  post/*)
    ip link set enp2s5 down  
    ip link set enp2s5 up
    ;;
esac

This is working but I wanted to know if anyone was having similar problems and if there was a more elegant solution.

Secondly I found that I could not resume with a bluetooth connected wiimote (under cwiid) which I use to control the mediacentre nor could I resume with a usb keyboard.

cat /proc/acpi/wakeup 
Device  S-state   Status   Sysfs node
PCI0      S5    *disabled  no-bus:pci0000:00
PEX0      S5    *disabled  pci:0000:00:1c.0
PEX1      S5    *disabled
PEX2      S5    *disabled
PEX3      S5    *disabled
PEX4      S5    *disabled
PEX5      S5    *disabled
HUB0      S5    *disabled  pci:0000:00:1e.0
UAR1      S3    *disabled
UAR2      S3    *disabled
USB0      S3    *enabled   pci:0000:00:1d.0
USB1      S3    *enabled   pci:0000:00:1d.1
USB2      S3    *enabled   pci:0000:00:1d.2
USB3      S3    *enabled   pci:0000:00:1d.3
USBE      S3    *enabled   pci:0000:00:1d.7
AZAL      S5    *disabled  pci:0000:00:1b.0

After searching the forums I found this post - https://bbs.archlinux.org/viewtopic.php … 9#p1206269

What you can try is to set /sys/bus/usb/devices/usb*/power/wakeup to enabled where * is the number of your usb device.

this worked for the usb keyboard, allowing it to resume from suspend but not for the wiimote.
When suspending the wiimote's light remains on showing a connection (in fact holding the off button can't turn it off) on resume (with keyboard or the computer's on switch) the light goes off and it has to be reconnected by putting it in discovery mode again.

I'm not sure if this is even possible but can anyone suggest anything else I could try to enable resume with a wiimote?