Hello
I have a raspberry pi4 with raspbian
He works perfectly in 4k résolution
Now and i don t know why after a reboot the higher resolution is 1024x768 and it s impossible to have the good résolution
I reinstall ans format my SD card and it s the same issue
I try to change the config.txt and no issue
Somebody can help me ?
My TV it s Samsung 4k hdr
My xbox one x and my switch work perfectly at the good résolution

Thx