LMDE how to add new screen resolution and how to upload it?

Question

linux

Hello!
There is a need to add custom screen resolution for LMDE 3 Cinnamon.
I can add a new permission, but I can't add it to startup.
I created a sh script and threw it along the way

/home/user/.config/autostart/user.sh

File contents:

#!/bin/bash
sudo xrandr  --newmode "1600x900_60.00"  118.25  1600 1696 1856 2112  900 903 9$
sudo xrandr --addmode eDP-1 1600x900_60.00
sudo xrandr --output eDP-1 --mode 1600x900_60.00

Then I added a new launch to the "Startup" section, specifying the path to the script:

/home/user/.config/autostart/user.sh

After a reboot, the new screen resolution is not applied.
I note that in addition to my script, autorun also contains:
- cinnamon settings daemon - xrandr
- ctrl + alt + backspace (for restart xorg)
and other scripts ...
I would be grateful if you could tell me what exactly needs to be updated.
I note that the above script is working and when added through the terminal in the "Display" section, the required resolution appears and when applied it is displayed correctly

Answer 1

in my ~/.config/autostart folder,
in addition to the executable display.sh script that adds the required permission,
there is a button to launch this script display.sh.desktop

[Desktop Entry]
Type=Application
Exec=/home/svm/.config/autostart/display.sh
Hidden=false
X-MATE-Autostart-enabled=true
Name=display.sh

line X-MATE-Autostart-enabled=true
change under cinnamon https://forum.ubuntu.ru/index.php?topic=272217.0