# Psychtoolbox on Windows 10, only worked for specific resolutions

**URL:** <https://psychtoolbox.discourse.group/t/psychtoolbox-on-windows-10-only-worked-for-specific-resolutions/3420>\
**Category:** Bugs & Features\
**Tags:** windows, gpu\
**Created:** [September 23, 2020, 9:28am UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-on-windows-10-only-worked-for-specific-resolutions/3420 "2020-09-23T09:28:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jCalderTravis](https://avatars.discourse-cdn.com/v4/letter/j/bbe5ce/32.png) [@jCalderTravis](https://psychtoolbox.discourse.group/u/jCalderTravis)\
**Post date:** [September 23, 2020, 9:28am UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-on-windows-10-only-worked-for-specific-resolutions/3420/1 "2020-09-23T09:28:29Z")

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This isn’t really a question, it is just for reference in case others who are testing/debugging their code on Windows 10 face the same problem I did.

Issue I had: The “Screen” function on Psychtoolbox, running on Windows 10, did nothing. No window appeared, not even to display the start up screen. This remained the case even when I selected a resolution from the list of supported resolutions, produced by calling “Screen(‘Resolutions’, screenNumber)”

Workaround: After experimenting I found Psychtoolbox worked for one specific resolution setting available to me. Specifically, a resolution of 1280x960. The scaling option available under Windows “Display settings” also had to be set to 125% for Psychtoolbox to run.

Of course, this may be a problem specific to my graphics card/computer, but just in case it is not I thought I would post for reference.

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**Author:** ![mariokleiner](https://avatars.discourse-cdn.com/v4/letter/m/13edae/32.png) [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\
**Post date:** [September 23, 2020, 11:21am UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-on-windows-10-only-worked-for-specific-resolutions/3420/2 "2020-09-23T11:21:54Z")

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It is specific to your setup. Something is seriously broken with your Windows10 operating system or its display drivers.

If i were you i wouldn’t trust that setup for a second wrt. precise timing or stimulus reproduction.

-mario

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**Author:** ![jCalderTravis](https://avatars.discourse-cdn.com/v4/letter/j/bbe5ce/32.png) [@jCalderTravis](https://psychtoolbox.discourse.group/u/jCalderTravis)\
**Post date:** [September 23, 2020, 11:42am UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-on-windows-10-only-worked-for-specific-resolutions/3420/3 "2020-09-23T11:42:41Z")

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Thanks Mario. Yep, I definitely agree regarding timing.