How to adjust screen resolution on Linux if it doesn’t fit the screen?

If the resolution of Linux is not suitable for your screen, you can try the following methods to fix it:

1. Most Linux distributions offer graphical user interface settings, where you can open the settings or display options to adjust the resolution to fit your screen.
2. To adjust the resolution manually, you can use command line tools. Input the ‘cvt’ command in the terminal window followed by your desired resolution and refresh rate to generate model parameters. Then apply the generated model parameters to your screen using the ‘xrandr’ command.
3. Edit configuration file: You can manually configure the resolution by editing the Xorg configuration file. This file is usually located in the /etc/X11/xorg.conf or /etc/X11/xorg.conf.d/ directory. You can add or modify the resolution settings in this file, then restart the X server.
4. Update your graphics card driver: If your graphics card driver is not the latest version, it may cause resolution to not adapt to the screen. You can try updating or reinstalling the graphics card driver to ensure compatibility and freshness.
5. Check hardware compatibility: Sometimes, certain screens or monitors may not be compatible with certain resolutions. It is best to check their compatibility and supported resolutions before purchasing or using a new screen.

If none of the above methods work, you can try seeking help from the Linux community forums or consulting professional experts.