Trouble displaying stimuli on second monitor despite setting 'screen = 2' in visual.Window()

[Xander Krieg]

Hello All,

I am struggling to display my experiment on the participant's screen in our lab. Everything works perfectly except the experiment shows on the experimenter screen (screen = 1) instead of the participant screen (screen = 2). I am using PsychoPy v1.81.03 on a Mac Mini with the experiment screen connected through the Thunderbolt Port and the participant screen connected through the HDMI port.

In Coder View, I set "screen=2" in visual.Window(), but it always appears in the experimenter screen in full screen. When I change it to "screen = 1" just to test it. It shows part of the window in the upper left-hand corner of the screen (image attached). I assume that there is something wrong with my monitor settings.

When I look into my Monitor Settings, I see that I have four screens (default, testMonitor, Experimenter Screen, and Participant Screen). I completed the Gamma Calibration for both of my monitors and entered the correct resolution. I noticed that every time I calibrate gamma for my participant screen, it shows "screen = 1".

How can I get my experiment to display on the other screen? Is there a way to permanently make a certain screen be the second monitor?

Thank you for your help, and for sharing your knowledge and expertise!

-Xander

[Michael MacAskill]

Hi Xander,

The screen numbers are zero-based. Subtract 1 and see what happens.

Regards,

Michael

[Xander Krieg]

Hi Michael,

Thank you so much for your reply and your advice. To test this, I entered the numbers 0 - 9 in for "screen = ". Except for "screen = 1", which still does what is depicted in the screenshot on the Experimenter Screen, every other number displays full screen on the Experimenter Screen.

Any other suggestions on what could be causing this?

Thanks again!

-Xander

[Michael MacAskill]

Wow, this is a tricky one. Although I now seem to recall that this OS X issue has been noted before.

(A) I put you wrong on the 0-based thing: Builder subtracts 1 for you, so you should just enter 1 or 2 as required.

(B) On OS X 10.10.1, I could get it to display on the other screen if I deselected “Full screen window” in Builder’s “Experiment settings” dialog.

*** NB this might look alright cosmetically, but I think running in non-fullscreen mode can cause performance issues ***

(C) The only combination I could find to get it on the other screen AND be full-screen was to shift the menu bar to that screen in the Displays panel of System Preferences. OS X defines screen 0 (i.e. 1 in Builder) as the one with the menu bar and the other becomes screen 1 (i.e. 2 in Builder) That is, the numbering isn’t a physical one based on which port the display is connected to. 

It seems that OS X will only allow an app to be fullscreen on the first screen. You can get a menu bar to appear on the second screen as well (oddly enough, via the Mission Control panel -> “Displays have separate spaces", so it isn’t too difficult to drag the Builder window over there and you can run everything as required without the subject seeing it.

 

Does that work for you?

Mike

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[Jonathan Peirce]

Mike is right. Apple have removed support for full-screen mode on your second monitor, as of Mavericks (10.9). So the closest you can get to that now is to make the screen the right size for your second monitor and put screen=1 in the Window arguments

Jon

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[Dingcai Cao]

This strategy (setting screen=1) for the second monitor only works with Psychopy version 80. It does not work for version 81 or 82, no matter of the OS I tested (Mac OS X 10.6, 10.7, 10.10). Interestingly enough, the monitor center in Psychopy 82 allows to choose which monitor to do gamma calibration (1 for the primary; 2 for the secondary). 

[Linus Sun]

Just wanted to chime in also having problems with the monitor settings in psychopy.  Basically psychopy will never draw a window on a the second display no matter if I set screen=0 or screen=1 to the visual.Window  line in the code - it will ONLY display on the "main display" set in Windows 7.  I wanted to have a 'clean' display for the subject rather than have them watch me launch a psychopy GUI, or see any python 'errors' that arise appear on their monitors which can be quite distracting. 

Any tricks to manage this or has this bug been fixed? 

Various manipulations in the 'monitor center' seem irrelevant, any changes that occur to the screen=0 or screen=1 either by direct coding or changing Screen 1 or Screen 2 in Builder->Experiment Settings->Screen tab makes no difference. visual.Window always displays on "main display" of Windows 7. 

Admittedly, my system is a bit unique, I'm running Windows 7 on Bootcamp on a MacPro (1,1) Xeon X5...@3.00 Ghz "Quad-Core" system.  Windows 7 has no trouble changing between "make this my main display" for either of my two monitors. 

I am using the standalone download of PsychoPy 1.82.01

Thanks for your help,

Linus

[Kaitlyn Tagarelli]

Hello,

I'm having a similar issue. Following the directions in this thread, I was able to get my experiment to run on a second monitor only if I indicate screen 2 and uncheck "Full-screen window" in the Experiment Settings. However, there is still a bar at the top (i.e., the top of the window). Is there a way to get rid of this window bar so that it displays completely in full-screen mode?

I tried setting the screen number in the visual.window() settings, but the Experiment Settings seem to override that (I'm relatively new to Psychopy).

I also tried playing around with the screen dimensions to see if I could hack it to cut off the very top/bar of the window, but that doesn't seem to work either (and is probably not a great solution anyway).

I am running OS X 10.10.5 and Psychopy v1.83.03. 

Thanks in advance for any advice!

Kaitlyn

[Michael MacAskill]

Hi Kaitlyn,

I don't know if there is a wait to set this within the graphical Builder interface, but if you push the "Compile script" button, you'll see a line in the code that Builder generates that looks like this:

win = visual.Window(size=[600, 600], fullscr=False, screen=0, allowGUI=True, allowStencil=False,
monitor=u'testMonitor', color=[0,0,0], colorSpace='rgb',
blendMode='avg', useFBO=True,
)

If you edit that so that allowGUI=False, you should lose the window bar.

Note that Builder regenerates this file afresh each time it runs, so if you want to edit the generated code like this, you should save a copy of the script and then run it from inside the Coder interface.

Best wishes,

Michael

> On 29/01/2016, at 04:19, Kaitlyn Tagarelli <taga...@gmail.com> wrote:
>
> Hello,
>
> I'm having a similar issue. Following the directions in this thread, I was able to get my experiment to run on a second monitor only if I indicate screen 2 and uncheck "Full-screen window" in the Experiment Settings. However, there is still a bar at the top (i.e., the top of the window). Is there a way to get rid of this window bar so that it displays completely in full-screen mode?
>
> I tried setting the screen number in the visual.window() settings, but the Experiment Settings seem to override that (I'm relatively new to Psychopy).
>
> I also tried playing around with the screen dimensions to see if I could hack it to cut off the very top/bar of the window, but that doesn't seem to work either (and is probably not a great solution anyway).
>
> I am running OS X 10.10.5 and Psychopy v1.83.03.
>
> Thanks in advance for any advice!
>
> Kaitlyn
>

[Jonathan Peirce]

Kaitlin, I'm afraid in your case this is an issue to do with Mac OSX. Apple decided in their wisdom that second screens should not allow full-screen mode (I know, I have no idea either!). Nothing we can do I'm afraid. On the second screen, creating a window and making it big is your only option. Or using mirrored screens :-(

The problem for the original post here is to do with the X windowing system and, for that, I don't have an answer. We use the pyglet library to handle creation of the window.

Jon

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