Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: BENQ GL2450 Goes Black few seconds then comes back.

08 Feb 2015   #1

Windows 7 Ultimate x64
BENQ GL2450 Goes Black few seconds then comes back.

Morning / afternoon all.

Having a issue where my screen will go black for a few seconds it could be in-game watching movie, music anything and then it will come back to my life, the monitor is 3 weeks old.

Im using HDMI cable and have tried three different cables as well.

I will post specs below:

System Model
Windows 7 Home Premium (x64) Service Pack 1 (build 7601)
Gigabyte Technology Co., Ltd. Z97X-Gaming 5
8006 Megabytes Usable Installed Memory

Slot 'ChannelA-DIMM0' is Empty
Slot 'ChannelA-DIMM1' is Empty
Slot 'ChannelB-DIMM0' has 4096 MB
Slot 'ChannelB-DIMM1' has 4096 MB
NVIDIA GeForce GT 630 [Display adapter]
Standard VGA Graphics Adapter [Display adapter]
BenQ GL2450H [Monitor] (24.0"vis, s/n L9E03537019, September 2014)

Anyone help be appreciated.

The monitor has no forced refresh rates or anything.

Thank you my humble friends

My System SpecsSystem Spec
08 Feb 2015   #2
Mellon Head

Win 7 Pro x64/Win 10 Pro x64 dual boot

Just to rule out your video card having issues, I would try to see if I could borrow a monitor to use for a day and see if the problem persists with that monitor. Likewise, I would see about trying the monitor on a friend's computer and see how that works out.

Post back and let us know what happens.


Can you also take a screenshot of Device Manager with the "Display Adapters" tab expanded, and post it, please?
My System SpecsSystem Spec
10 Feb 2015   #3

Windows 7 Ultimate x64

I used a DVI cable last night which solved it. I tried a 3 HDMI cables which still had the same issue does anyone know of a setting in the graphics card?
My System SpecsSystem Spec

12 Feb 2015   #4
Mellon Head

Win 7 Pro x64/Win 10 Pro x64 dual boot

I know of no setting, but HDMI does tax the video card a fair bit. Maybe your card is overheating? My screen goes black when mine does.

Just a thought.
My System SpecsSystem Spec
13 Feb 2015   #5

Windows 7 Ultimate x64

Its not the best card so does make sense, time to invest!!!!!
My System SpecsSystem Spec
28 Jul 2015   #6

Windows 7 Home Premium 64bit

Hi, if you bought a new videocard it would not solve your problem but by all mean do so. I have a gtx-970 still my benq monitor still going off sometimes.
My System SpecsSystem Spec

 BENQ GL2450 Goes Black few seconds then comes back.

Thread Tools

Similar help and support threads
Thread Forum
Screen goes black for a couple of seconds and comes back up
To give a bit of a background - I had to change the mothboard of my system last month because of an incident of burnt PSU Coming to the current situation - since the last few weeks, I have noticed that when I am viewing a video on fullscreen mode, I would often hear a system alert sound, like...
Graphic Cards
2nd monitor added but goes black after a few seconds..
I just added a 2nd monitor today to my comp, a Philips 109s. It turns on fine, displays the extended screen but after maybe 7 seconds, it goes black. If I change something within the screen res section(ie landscape to portrait), it fires back up, but goes black again in a few seconds. When the 2nd...
Graphic Cards
Machine turns off and then back on a few seconds later
Hello everyone, Its an ibuypower purchase off of New Egg a few months back. The last few days, after the computer has been on for a little while (sometimes as short as ten minutes) it turns off - no shutdown and then turns itself on a few seconds later. I've opened the side panel and made sure...
BSOD Help and Support
Black screen after login for some seconds, then back at logon screen!
Hi people, i've just registered to this forum to ask you about this, Since i've made a registry defrag with TuneUp Utilities (which probably has gone wrong), when i reset the computer, and I logon to my user, it shows a black screen, then back at the logon screen. If I do it again, the user doesn't...
BSOD Help and Support
Screen often goes black for 2 seconds
Hi, I have Windows 7 Ultimate, 7600 RTM with a Geforce GTX 275. I notice sometimes about every 30 minutes or so the screen on the desktop would just go black and reappear in about 2 seconds. What could be the problem? DXdiag shows the drivers I am using are
Graphic Cards

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 14:52.
Twitter Facebook Google+