https://www.androidpt.com/topic/42470-desbloqueio-gratuito-de-operadora…

https://forum.xda-developers.com/galaxy-s2/help/guide-tutorial-samsung-…

https://www.hisense.fr/telechargements?title=&type=televiseur

http://www.hisense.pt/descargas-firmware/n5750/

sudo sed -i 's/main/main contrib non-free/' /etc/apt/sources.list && sudo apt update -y && sudo apt install firmware-linux firmware-linux-free firmware-linux-nonfree firmware-misc-nonfree -y && sudo reboot

começar por substituir o rsyslog pelo busybox-syslogd que funciona na ram:

apt install busybox-syslogd
apt purge rsyslog

adicionar ao sistema raiz noatime,commit=1800

https://www.displayspecifications.com

<?xml version="1.0" encoding="UTF-8"?>

https://thelastmaimou.wordpress.com/2013/05/04/magic-soup-ext4-with-ssd…
https://wiki.gentoo.org/wiki/SDCard#Filesystem

hipótese 1:
gs -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=setting -sOutputFile=output.pdf input.pdf
o setting pode ser: /screen, /ebook, /printer e /prepress

https://www.techwalla.com/articles/disadvantages-to-the-pdf-format

xfce4-panel --quit;pkill xfconfd;rm -r ~/.config/xfce4;xfce4-panel

Preparation

Prepare a mount point for your data and change ownership.
# Create a mount point
sudo mkdir /media/cryptoUSB
# Set permissions for the owner
sudo chown stefan:stefan /media/cryptoUSB

Create an Encrypted Device

Encrypt the device with LUKS. Note that all data on the partition will be overwritten during this process.
# Create encrypted device
sudo cryptsetup --verify-passphrase luksFormat /dev/sdX -c aes -s 256 -h sha256