OBS Output in preview and stream incorrect

movxtx

New Member
Hi all,

I am trying to update my preview and stream to the correct output, I am using a Samsung Odyssey ultra wide monitor and in OBS I have my file > settings set to:

Base (canvas) resolution: 5120x1440
Output (scaled) resolution: 5120x1440

Previously the preview showed the picture in the middle of the screen filling it to my monitor width now it shows a black area around the picture with the video in the upper left of that window and this is how my wife sees it in the stream. I have tried changing all my settings to different outputs (preview and stream never change). Tried to close everything, restart, no change. Any help would be appreciated! Thank for your time!

Screenshot of the preview and settings, this is on my secondary monitor.
Screenshot 2026-04-10 070728.png



Logs from current session (issue present) here: https://obsproject.com/logs/Qit0eFnhZLcWdcuI
 
07:03:05.778: [game-capture: 'Game Capture'] DXGI_SWAP_CHAIN_DESC:
07:03:05.778: BufferDesc.Width: 3840
07:03:05.778: BufferDesc.Height: 1080

According to the log, your game is not running at the native resolution of your monitor, so you should either set your game resolution to match your canvas, or lower your canvas resolution to match the game. Note when adjust the canvas, the existing source may need its transform reset (Ctrl+R) as resizing the canvas will also resize sources.
 
07:03:05.778: [game-capture: 'Game Capture'] DXGI_SWAP_CHAIN_DESC:
07:03:05.778: BufferDesc.Width: 3840
07:03:05.778: BufferDesc.Height: 1080

According to the log, your game is not running at the native resolution of your monitor, so you should either set your game resolution to match your canvas, or lower your canvas resolution to match the game. Note when adjust the canvas, the existing source may need its transform reset (Ctrl+R) as resizing the canvas will also resize sources.
Thank you so much R1CH, I didn't even check that will do that now. Thanks again for the prompt response!
 
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