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OS X (A3 Ports): Secondary screen connected is thought as primary for purposes of resolution settings and mouse input
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Description

Running Arma 3 Ports OS X version under 10.11 El Capitan (same behaviour seen in 10.9.5 Mavericks), when you have a secondary screen connected, the game things it is the main screen for all purposes except actual display, apparently. Resolution settings are restricted to maximum of 2nd screen (1680px in my case), and mouse input in fullscreen mode in the menus (main menu, map menus) does not work (only keyboard).

Setting output to Windowed allows normal mouse input, but resolution is still tied to 2nd screen maximum.
Although Windowed output has problems with GFX card not going into full power mode, resulting in low FPS.

Actually physically disconnecting the 2nd screen cable allows to change resolution to normal for the main screen (4K in my case).

Still, graphics settings are limited to Textures:Low and mostly High on Details and Terrain maximums, even though the GFX card has plenty of power to run most on Ultra.

Seems to be a problem with the eON wrapper not dealing correctly with multiple screen setups.

Details

Legacy ID
3720935716
Severity
None
Resolution
Open
Reproducibility
Always
Category
Engine
Steps To Reproduce
  1. have Mac, running OS X 10.11 (although same problem reproduced on 10.9.5)
  2. have multiple screens connected (preferably with different max resolution)
  3. disconnect all other screens physically (might suffice to disable through SwitchResX, haven't tried myself)
  4. observe you are now able to set resolution to the maximum of the only connected screen
Additional Information

Arma 3 Ports, v1.42
Mac Pro
Aftermarket AMD R9 280X card (same problem observed on default GFX card before swap)
OS X 10.11 El Capitan (same problem observed on 10.9.5 before upgrade)

Event Timeline

fraczek edited Steps To Reproduce. (Show Details)Oct 1 2015, 7:51 PM
fraczek edited Additional Information. (Show Details)
fraczek set Category to Engine.
fraczek set Reproducibility to Always.
fraczek set Severity to None.
fraczek set Resolution to Open.
fraczek set Legacy ID to 3720935716.May 8 2016, 12:51 PM