mouse click frequently stops working

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After installing DisplayFusion, I noticed that the mouse click frequently stops working. Based on a habit from older versions of Windows where an accessibility feature (StickyKeys?) was accidentally turned on, I learned that tapping the Alt key makes the click work again, but I don't think this is the same problem.

After seeing a bunch of threads in the support forum relating to Alt+Tab functionality, I found that I can consistently recreate the problem by switching to another window with Alt+Tab. I'm not sure if this the only case where this problem occurs, but it happens every time I Alt+Tab.

When I close DisplayFusion, the problem goes away.

I don't have any of the features under Settings > Mouse Management enabled, but the problem seems to go away if I disable the Alt+Tab handler.

I'm using the Steam version of DisplayFusion on a laptop. The primary monitor is the laptop's inbuilt display and the secondary monitor is connected by HDMI.

Thank you.

Apr 4, 2015 • #1

Interesting! Which version of Windows are you running? We haven't run into this here before, but we'll test it out to see if we can reproduce it.

Thanks!

Apr 6, 2015 • #2

I'm using Windows 8.1...

OS NameMicrosoft Windows 8.1 Pro
Version6.3.9600 Build 9600

I should've updated my thread when I realized that disabling the Alt+Tab handler also fixes the problem.

Settings > Window Management > Alt+Tab Handler

Thank you.

Apr 6, 2015 • #3

Ok, so when the issue occurs, just pressing the Alt key fixes it for the time being? Could you check Control Panel > Ease of Access to see if StickyKeys is enabled? I wonder if it's being triggered somehow by our Alt-Tab Handler.

Apr 7, 2015 • #4

I found it under Control Panel > Ease of Access Center > Make the keyboard easier to use

Sticky Keys isn't enabled. I only found one setting checked: "Turn on Toggle Keys by holding down the NUM LOCK key for 5 seconds"

• Attachment [protected]: 20150408_162038_Make_the_keyboard_easier_to_use_.png [35,977 bytes]

Apr 8, 2015 • #5

Ok strange! So to clarify, if the Alt+Tab Handler is enabled, and the Alt key gets "stuck" down, all you have to do is press the Alt key once to resolve the issue?

I can't reproduce that here, so I'm kind of stumped as to how it could be happening

Apr 16, 2015 • #6

What are you alt+tabbing in/out of when this happens? If you exit DisplayFusion completely, does this still happen?

Jun 17, 2016 • #7

Ok, does that happen if you alt+tab out of other games after using the prevent window deactivation function as well?

Jun 21, 2016 • #8

anatomy

1 discussion post

Sorry for the necro, but I have the same-ish problem. W10 Pro, Logitech G502. When my display wakes up (computer does not sleep) my mouse buttons either will not fuction at all, or will not interact inside windows. I can click on my taskbar, open the windows button, and click between windows, but not anything inside windows, and right-click is completely disabled either way. I've been trying to resolve this for super long not realising it could be to do with DF until the other day, and discovered it only happens with DF running. Sticky keys are not enabled. I've just turned off the Alt+tab handler so I'm hoping that fixes it, or hitting alt to turn off whatever is going wrong if it happens again.

Apr 24, 2024 • #9