Monitor randomly turns itself on when in standby mode

Amatsubu · 29 Sep 2015 at 20:24

Hi!

I've recently bought the Benq BL3200PT and I'm extremely happy with it, it's better than I thought it would be. However, I have a bit of a problem. I've set Windows to make the monitor go into standby mode after 1 minute of idling but it turns itself on again in random intervals.

I suspect there's a process in the background which wakes up the monitor but I don't quite know how to pinpoint it. I've disabled sleep mode and checked all the USB hub roots and the network adapter power settings to make sure nothing is allowed to wake the computer from standby, but to no avail. I may have to recheck but I don't think I missed anything.

Has any of you had a similar issue?

TubbyGreg · 29 Sep 2015 at 20:38

That sure is an odd one, have you had a look at using a blank screensaver instead?

Amatsubu · 29 Sep 2015 at 21:35

Haven't tried anything yet. For now, I'm just trying to pinpoint whether the issue is inherent to the monitor itself (I really hope that's not the case) or to Windows simply acting up.

Worst of all, I might have had the issue when I was on my previous monitor but might have missed it due to always turning the screen off when away from the PC. The LG had a touch-sensitive power button but the BenQ has a physical one. This might sound stupid but I don't want it to wear down from being pushed 50 times a day and that's why I opted for using standby instead;p

Seriously though, I'm at a loss as to why it happens. Judging by how such things usually pan out, it might be something terribly simple but I'm just too stupid to figure it out.

Amatsubu · 30 Sep 2015 at 15:40

From what I've managed to observe, the issue doesn't seem to occur if I turn on the PC and let the monitor go into standby without doing anything. I've got 72 processes running at startup and they shoot up to about 76-78 after a while so there must be something that activates afterwards and randomly turns on the screen.

Seriously, this is ****ing me off and I don't really know what to do.

titaniumx3 · 30 Sep 2015 at 18:46

Maybe it's your mouse having occasional tracking problems and moving the cursor on its own. I've had this happen before.

Amatsubu · 30 Sep 2015 at 20:35

I've set the power settings to not allow the mouse to wake the PC so I think it's not that

GMac11 · 30 Sep 2015 at 20:44

I had the exact same thing happen to me and never got to the bottom of it. It stopped when I changed my graphics from AMD to Nvidia.

I have absolutely no evidence that it was the graphics card that caused it, could have been anything such as driver conflict.

Just thought I'd share.

Amatsubu · 30 Sep 2015 at 21:52

Thanks for the reply, I'm on nvidia ATM. It turns out that it might be the mouse because I've just noticed that I can still wake the screen with it, even though I tinkered with power management settings (my k&m are a Logitech set and run off a single USB stick so that may be the reason)

Other than that, it could be anything.