Résolution bloquée a 640x480p

Hi JulienCLEMENT,

sorry to hear.Your Xbox One displays 480p if it does not receive an EDID from your TV. This is the lowest resolution possible for the Xbox One. However, the console was not designed to display at low resolutions. So I think maybe your TV is faulty?
But please read about here:

"How to adjust the display settings on your Xbox One" and

"Display troubleshooter"

Hope this helps and please keep us informed

Hello Julian,

Thanks for keeping us updated. The best way to see if the problem corresponds with your TV is to connect the Xbox to a different TV or monitor. Try that out, if possible, and let us know the results.

You can also try resetting the Xbox display settings to default. afterwards, check to see if you can adjust she settings. You can do so by following these steps :

1. If there's a disc in the Xbox One console, eject it.
2. On the console, press and hold the Xbox button
   for 10 seconds to turn off the console.
3. Press and hold the Xbox button
   and the Eject button until you hear a beep to turn on the console. You’ll hear one beep right away and a second beep 10 seconds later. The power light will flash on before the second beep. DO NOT LET GO until the second beep occurs.
   
   Note If you have an Xbox One S All-Digital Edition, you’ll need to press and hold the
   Xbox button and the Bind button instead, as your console does not have an
   Eject button.
   
   In either case, this will boot your console in low resolution mode (640 × 480). To reset this setting, press the
   Xbox button to open the guide. Go to System >
   Settings > Display & sound > Video output, and then select the resolution you want from the Display dropdown.
   

Bonjour !

Ma TV est une LG 46LB5610 ...

Cela m'étonnerait que le problème vienne de ma TV car il y a une semaine tout allait bien (mon PC Gamer est actuellement branché sur cette dernière est il n'y a aucun souci avec lui).

Merci de vos réponses

Translation -

Hello !

My TV is a LG 46LB5610 ...

It would surprise me that the problem comes from my TV because a week ago everything was fine (my PC Gamer is currently connected to the latter is there is no problem with him).

Thank you for your answers

Hello Christophe (It seems we have to translate first name ... Joking )

I'll try your technic, and you'll know te result soon as possible

I'd like to thanks all of you for answering me, also my english is not so good sorry for mistakes/error.

Bonjour

Tu as quoi comme modèle de télévision ?

Translation -

Hello

What do you have as a television model?