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18.04
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suspend
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URL:
https://askubuntu.com/q/1089078
Title:
Wakes from suspend immediately when bluetooth device disconnected
ID:
/2018/11/01/Wakes-from-suspend-immediately-when-bluetooth-device-disconnected
Created:
November 1, 2018
Upload:
September 15, 2024
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My laptop which used to suspend OK most of the time started having problems last week. Perhaps due to a faulty cable. I created a bash script which suspends and resumes faster than before and more reliably.
Use this command:
sudo -H gedit /lib/systemd/system-sleep/custom-xhci_hcd
Copy and paste the following into the editor:
#!/bin/bash
# Original script was using /bin/sh but shellcheck reporting warnings.
# NAME: custom-xhci_hcd
# PATH: /lib/systemd/system-sleep
# CALL: Called from SystemD automatically
# DESC: Suspend broken for USB3.0 as of Oct 25/2018 various kernels all at once
# DATE: Oct 28 2018.
# NOTE: From comment #61 at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/522998
TMPLIST=/tmp/xhci-dev-list
# Original script was: case "${1}" in hibernate|suspend)
case $1/$2 in
pre/*)
echo "$0: Going to $2..."
echo -n '' > $TMPLIST
for i in `ls /sys/bus/pci/drivers/xhci_hcd/ | egrep '[0-9a-z]+\:[0-9a-z]+\:.*$'`; do
# Unbind xhci_hcd for first device XXXX:XX:XX.X:
echo -n "$i" | tee /sys/bus/pci/drivers/xhci_hcd/unbind
echo "$i" >> $TMPLIST
done
;;
post/*)
echo "$0: Waking up from $2..."
for i in `cat $TMPLIST`; do
# Bind xhci_hcd for first device XXXX:XX:XX.X:
echo -n "$i" | tee /sys/bus/pci/drivers/xhci_hcd/bind
done
rm $TMPLIST
;;
esac
Then save the file and exit gedit.
Mark the script as executable using:
sudo chmod a+x /lib/systemd/system-sleep/custom-xhci_hcd
Now your suspend/resume problems should go away. If not hopefully someone else posts their solution.