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| #!/bin/bash | |
| # this forces Arena into full screen mode on startup, set back to 3 to reset | |
| # note that if you go into the Arena "Graphics" preference panel, it will reset all of these | |
| # and you will need to run these commands again | |
| defaults write com.wizards.mtga "Screenmanager Fullscreen mode" -integer 0 | |
| defaults write com.wizards.mtga "Screenmanager Resolution Use Native" -integer 0 | |
| # you can also replace the long complicated integer bit with any other scaled 16:9 | |
| # resolution your system supports. | |
| # to find the scaled resolutions, go to System Preferences --> Display and then | |
| # divide the width by 16 and multiple by 9. on my personal system this ends up | |
| # as 3456 x 1944 (versus the bizarre 1728x1117 it will very temporarily select | |
| # when clicking the full screen option in the client | |
| defaults write com.wizards.mtga "Screenmanager Resolution Width" -integer \ | |
| $(system_profiler SPDisplaysDataType | grep Resolution | cut -c23-26) | |
| defaults write com.wizards.mtga "Screenmanager Resolution Height" -integer \ | |
| $(bc <<< "$(system_profiler SPDisplaysDataType | grep Resolution | cut -c23-26) / 16 * 9") |
Yes, I noticed this as well and posted a bug here: In-game screen resolution changed to 16:10 on macOS after Tarkir Alchemy update (v2025.48)
Interestingly, the game’s landing and menu screens appear to load in the correct resolution (as set by this script or the Epic Games Launcher), but it automatically changes as soon as I enter a game for the first time.
In my case, if I switch the MTGA client to windowed mode, then everything renders at the correct aspect ratio, plus the in-game “Graphics” options screen works as expected (i.e. it automatically shows and selects the highest possible resolution, hence I don’t have to set this via a script or the Epic Games Launcher).
So in short, running the game in windowed mode seems to be the best workaround for now.
Oh no :-( That's bad. In window mode my macbook can not start the game mode. And my untapped.gg overlay does not work fine. I hope wizards will fix it quick. But I think we have to wait a long time. This bug always exists and wizards can not fix it since years.
FYI @BlackMambaHQ, this workaround/script is working again as of yesterday's v2025.48.40 update.
Thanks for the info! That's great news. I hope that the problem will be completely solved at some point. But the solution with the script helps a lot. Unfortunately, you can't open the graphics settings, otherwise everything is set incorrectly again. And you have to restart the game.
This script needs a nice shebang line. I added #!/bin/sh to the top because it was bugging me.
Yes, I noticed this as well and posted a bug here: In-game screen resolution changed to 16:10 on macOS after Tarkir Alchemy update (v2025.48)
Interestingly, the game’s landing and menu screens appear to load in the correct resolution (as set by this script or the Epic Games Launcher), but it automatically changes as soon as I enter a game for the first time.
In my case, if I switch the MTGA client to windowed mode, then everything renders at the correct aspect ratio, plus the in-game “Graphics” options screen works as expected (i.e. it automatically shows and selects the highest possible resolution, hence I don’t have to set this via a script or the Epic Games Launcher).
So in short, running the game in windowed mode seems to be the best workaround for now.