# Set Mathematica screen resolution?

**URL:** <https://community.wolfram.com/t/set-mathematica-screen-resolution/8746>\
**Category:** Questions\
**Tags:** mathematica, external-interfaces, tuning-and-debugging, ui-ux-and-ide\
**Created:** [June 13, 2016, 11:15am UTC](https://community.wolfram.com/t/set-mathematica-screen-resolution/8746 "2016-06-13T11:15:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![martinmm](https://avatars.discourse-cdn.com/v4/letter/m/9dc877/32.png) [@martinmm](https://community.wolfram.com/u/martinmm)\
**Post date:** [June 13, 2016, 11:15am UTC](https://community.wolfram.com/t/set-mathematica-screen-resolution/8746/1 "2016-06-13T11:15:38Z")

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HI !  
I am using Windows 10 and Mathematica Home Edition 10.4.0 on a PC.  
In Windows Control Panel I have adjusted my computer resolution to 1680_1050.  
And it all works fine - except when I start Mathematica ! In Mathematica the screen resolution  
is only 1344_840 and my computer works only with DirectX 9. As soon as I exit Mathematica,  
the computer works with a resolution of 1680\*1050 for all other programmes, and with DirectX 11.2.  
How can this be ?