How can I have the same screen on both my laptop & an external monitor?

On Fedora 39 Gnome.
I’m using an external monitor, which works fine,
but on my laptop
not the whole screen is used

Is the screen resolution for both displays set the same ?

now that I set the screen resolution for both displays the same (1024 763),
they are different,
only the external monitor shows the active window

The cropped image in the initial post reminded me of possible outcome of having 2 monitors in “mirror” mode, when they don’t have the same resolution.
It was just a guess.

Is that just a fact statement, or are you saying you are not able to display (any?) windows on the second screen using this setup ?

1 Like

Right click on the empty desktop, go to Display Settings and set it the way you want it. You can also define which is your primary display (showing the top bar).
Make sure you click on Join to extend your internal display to the external one, don’t use Mirror, which will have a singular resolution for all displays.

can’t understand any of this

OK, do you understand the following?

Please make a right click on the desktop and select “Display Settings” in the menu?

What is your mother tongue? Maybe it’s a language issue and we can find someone that speaks your language to facilitate the instructions.

not a language issue,
a gnome/fedora issue maybe,
can’t understand why it’s so difficult to have the same screen on my laptop and the external monitor,
forget it,
I thought it could be done automatically,
no worries,
I use the 24 inch external monitor all the time,
so no big deal that the window on the laptop is smaller

It is done automatically, however you must use the Join mode

automatically ? :grinning:

I believe, we do not understand each other and we might not be able to decipher the “I want the same screen on both monitors” requirement. Either

  1. You want that both monitors display the exact same content, for example you want that people in the room see the same stuff as you do on your laptop when doing a talk. In that case, you need to mirror the screens. Note, that the resolution will be set to fit the device with the lowest resolution and that, on some devices, the screen will not fill the entire physical space (as seen in your first picture.) This is normal.

  2. You want to have one big screen space that spreads across two or more displays (as in monitors). In that case, you need the join mode. In the join mode, you need to set up the primary display that shows the upper bar and the controls. The secondary displays are all empty (wallpaper included). Again, this is how it works on default Fedora. I am not aware of a trick to put the upper bar on all the joined displays.

Gnome remembers the settings so it automatically restores the layout when you reconnect your devices. That mostly works with some hiccoughs, such as mixing the primary and secondary screen or mixing the order of the screens.

this is easier to understand,
thanks Lukáš

The easiest way I have found to understand what is being said is to try what i think I may have understood and see what happens.

Within the display config screen shown the user can make changes and apply them. The system then asks if you wish to keep the settings or revert to the previous config before the change is final. As such different things may be tried to reach the desired config.