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Asked: 2024-09-26T21:50:46+05:30 In:

What command can I use to display a list of all currently connected monitors in Ubuntu?

Hey folks, I could really use your help with something that’s been bugging me! I recently set up a dual monitor setup on my Ubuntu machine, and everything seemed perfect at first. But now I’m a little lost and could use your expertise.

Here’s the situation: I want to make sure that both monitors are connected and recognized by the system. You know how it goes—you think everything is hooked up correctly, cables are all in place, but every once in a while, you just want to double-check to avoid any surprises. It’s super important for me to see if both screens are actually being picked up by Ubuntu.

So, I’m on the hunt for the right command to display all currently connected monitors. I remember fiddling around with some terminal commands last time, but I’m drawing a blank. I know there’s a command that lists monitors, but I can’t remember it for the life of me!

Plus, if I can get this sorted out, I’d love to configure some settings—like adjusting the resolution on each screen or even reorganizing their positions. But first things first, I need to know if Ubuntu is recognizing both of my displays.

If you’ve been in a similar situation or you’re just a terminal whiz, I’d really appreciate it if you could share the command you use. And if you have any tips for managing multi-monitor setups in Ubuntu, I’m all ears!

Honestly, any help you can provide would be amazing. I just need to get this sorted so I can get back to my projects without worrying about whether one of my monitors is just a mirage! Thanks a ton in advance—can’t wait to see what you all suggest!

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    2 Answers






    1. Ubuntu Dual Monitor Setup Help

      Hey! It sounds like you’re in a bit of a pickle with your dual monitor setup. Totally get that feeling! The command you’re looking for is:

      xrandr

      Just open up your terminal and type that in. It’ll show you all the connected displays along with their resolutions. If both monitors are recognized, you should see them listed there. Each monitor will be identified by a name like HDMI-1 or DP-1.

      Once you confirm that both are detected, you can use xrandr to configure the displays. For instance, to change the resolution of a specific monitor, you can use:

      xrandr --output HDMI-1 --mode 1920x1080

      Just replace HDMI-1 with your monitor’s identifier and change the resolution to whatever you need.

      To rearrange your screens (like if you want them side by side), you can use something like:

      xrandr --output HDMI-1 --right-of DP-1

      This command places HDMI-1 to the right of DP-1. It’s a bit of trial and error, but it works!

      As for tips, make sure the monitor settings aren’t being overridden by the display settings in your system settings panel. Sometimes, you can manage it all from there, which might be more intuitive than playing in the terminal!

      Hope that helps! Good luck getting everything set up just the way you want it!


    2. To check whether both of your monitors are recognized by your Ubuntu system, you can use the command xrandr in the terminal. This command will display detailed information about your connected displays, including their names, resolutions, and whether they are currently active. Simply open your terminal and type xrandr, then hit Enter. You should see output that lists each monitor along with its settings. Look for entries labeled with things like HDMI-1, DP-1, or VGA-1—these are identifiers for your monitors. If both are listed, you’re all set; if not, check your physical connections and settings in ‘Displays’ found within the system settings.

      Once you’ve confirmed that both monitors are recognized, you can use xrandr to configure their settings as well. For instance, to set the resolution of a particular monitor, you would use a command like xrandr --output HDMI-1 --mode 1920x1080, replacing HDMI-1 with the appropriate identifier and 1920x1080 with your desired resolution. You can also rearrange their positions using commands like --left-of or --right-of. If you want a more user-friendly way to manage your dual monitor setup, consider using the ‘Displays’ GUI in the settings menu, where you can drag and position your monitors visually. This way, you can organize them according to your workspace needs without any hassle.

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