Ubuntu¶

install libssl1.1 latest in ubuntu 22.04¶

• https://github.com/microsoft/azure-pipelines-agent/blob/master/src/Misc/layoutbin/installdependencies.sh

• https://stackoverflow.com/questions/72133316/libssl-so-1-1-cannot-open-shared-object-file-no-such-file-or-directory

use wget

package=$(wget -qO- http://security.ubuntu.com/ubuntu/pool/main/o/openssl/ | grep -oP '(libssl1.1_1.1.1f.*?_amd64.deb)' | head -1)
wget "http://security.ubuntu.com/ubuntu/pool/main/o/openssl/${package}" && dpkg -i $package

use curl

package=$(curl -sL http://security.ubuntu.com/ubuntu/pool/main/o/openssl/ | grep -oP '(libssl1.1_1.1.1f.*?_amd64.deb)' | head -1)
curl -LO "http://security.ubuntu.com/ubuntu/pool/main/o/openssl/${package}" && dpkg -i $package

Change mirror site in sources.list¶

sudo vi /etc/apt/sources.list
#replace http://archive.ubuntu.com/ubuntu with another mirror

#http://au.archive.ubuntu.com/ubuntu

:%s/search_string/replacement_string/g
:%s#search_string#replacement_string#g

gnome top bar to left¶

https://askubuntu.com/questions/1162884/can-i-move-the-gnome-top-bar-and-status-icons-to-the-side

disable shutdown confirmation¶

gsettings set org.gnome.SessionManager logout-prompt false

change font size¶

gsettings set org.gnome.desktop.interface text-scaling-factor 1.05

Enable hibernate¶

systemctl hibernate
Failed to hibernate system via logind: Sleep verb not supported

Disable swapfile and delete it

sudo swapoff /swapfile
sudo rm /swapfile

Auto hibernate after timeout¶

https://unix.stackexchange.com/questions/645535/shutdown-system-by-timeout-during-suspend

https://ubuntuhandbook.org/index.php/2021/06/automatic-shutdown-hibernate-on-idle-ubuntu/

Shortcut key does not work but works in terminal with pwd

dbus-send --system --print-reply --dest=org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager.Hibernate boolean:true
dbus-send --system --print-reply --type=method_call --dest=org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager.Hibernate boolean:true

Set the timeout value:

• https://wiki.archlinux.org/title/Power_management#Suspend_and_hibernate

• https://man.archlinux.org/man/sleep.conf.d.5

  /etc/systemd/sleep.conf
  

24.04 hibernation issues¶

After hibernation, the laptop will immediately wake up to the login screen.

Solution:

• after hibernation failed, quickly check log:

  journalctl --since "3 minutes ago" | grep -i "hiber"
  journalctl -p err -b | grep -i "power|hiber|swap"
  journalctl -p crit -b | grep -i "power|hiber|swap"
  

• found the message Wakeup event detected during hibernation, rolling back

• based on the message search online and found: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/2057687

• there are many worked solutions. #18 solved my issue as well.

• 18: add the line blacklist intel_hid to /etc/modprobe.d/blacklist.conf and then run¶

  sudo update-grub
  sudo update-initramfs -c -k all
  

• for similar discussion see also: https://bugzilla.kernel.org/show_bug.cgi?id=218634