Resolution Mismatch

will pressing the power and eject buttons to reset display settings work on the xbox one too??

Hi, power the Xbox off, then press and hold the power button and eject button, keep both buttons held until you hear the second of two power on tones then let the buttons go. That will reset the display settings, you will then need to go into the display
settings and make any required changes.

The xbox 360 e display isnt showing up on the tv, the 360's power button is just constantly flashing, and nothing is showing up, its just saying resolution mismatch change device's resolution..

I have everything set-up, the hdmi cables are in, one in the xbox, other in the tv, the powerbrick is working.. but nothing is showing up, just the same message.

Hi, you may be having a HDMI handshake issue, or a mismatched resolution issue. Try the steps in the following link. Specifically, power off xbox by holding power for at least 5 seconds to reset the system. Then turn it back on by holding power and eject
at the same time until you hear the system beep and turn on. This will cause it to boot in 480 resolution but hopefully will give you a picture. Then go to the display setting to set a higher resolution, but I would suggest selecting HDMI instead of AUTO
as this could be what caused the issue.

support.xbox.com/.../tv-or-monitor-screen-is-blank-while-connected

Hey guys, there are 2 things you can also try:

1) Set your STB resolution to 720p (vs 1080i)

2) Make sure that your STB and the Xbox One have the same audio settings. Set your STB to stereo audio, and make sure the setting in TV troubleshooting "Surround Sound (Beta)" is unchecked. Sometimes a mismatch between stereo and surround sound can cause
this issue.