Eye control issue on two monitor setup
I think I've detected a bug in Eye Control and would like to report it.
Have done the following test that I think proves it:
I can access the eye control buttons OK, all of them, even write on the eye control keyboard just fine. But when I ask for a click or even precise mouse action, after positioning on a point on the screen, then it happens that the actual point of the event is another one, to the left of the original one.
I measured the event point x coordinate and it is exactly one half of the gaze point x coordinate.
Let me clarify: I tested it on Paint, drawing a point and then measuring the horizontal position. When I gaze-click on the left edge of the screen, the actual click is accurately located (x=0). Whan I gaze click on the right edge of the screen, the point is drawn exactly en the horizontal center (one half of the screen width). On every desktop icon or element I try to click, the same thing happens..
I thought this might be related to my two monitor setup, so I changed it to use only one monitor, and then ---> it worked just fine.
So I think Eye Control might have an issue when using a two monitor setup on Windows.
I need to use two monitors even if eye control operates over only one of them, but I need the click point to be accurate because it is not possible to use it this way.
My Windows 10 has the 1809 build version. My eye tracker is a Tobii 4C with the latest driver version. I tested it on other Tobii apps and works perfectly even on two monitor setup.
I'm pretty sure this is a bug.
Thanks for your help.
Philip Weiss commented
I'm having the same problem too. Tobii doesn't support eye tracking on two monitors, but everything on the primary monitor should work right.
Thanks for the clarification Carlos, we will be passing this on to the Eye Control team.
Carlos A. Marchiaro commented
Thanks for your answer. I'm afraid i've not made myself clear. The hardware works perfectly well on two monitor setup, it just operates over the first monitor as expected. I've been able to use Tobii software and other applicacions developed by myself on this setup. This issue is only related to some functions of the Windows 10 Eye Control software, as described. Please, could you forward this information to the Eye Control development team, or maybe tell me how to contact them?
At this time, eye tracking hardware from our partners Tobii and EyeTech only support single monitor usage. Please reach out to them to learn more about the hardware limitations.