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Dell Inspiron 15 7547 - Screen Blinking Black for About 3 Seconds
Hey everyone!
So, I've been having this problem with my laptop for quite a while now and I have not been able to solve it. My laptop is acting as a desktop (it's connected to an external monitor, its lid is closed, and it is constantly plugged in). Every so often, the screen on the monitor turns black for around 3 seconds and comes back on. I just bought a new monitor to see if that would stop the flickering, but it didn't.
I have CONFIRMED that it is a problem with the laptop itself, NOT the monitor.
I do not know anything else that I could try to fix my problem. I've been on so many different forum discussions and have gotten nowhere. I have updated the graphics of my laptop, just by updating them and by completely uninstalling them and reinstalling them. I am thinking that my problem could be related to the battery of my laptop, as I have tried basically everything else. It is not related to the refresh rate. The laptop is connected to the external monitor via HDMI. The laptop is connected to the internet via an Ethernet cable.
My laptop is a Dell Inspiron 15 7547. My laptop is running the 64-bit edition of Windows 10 Home (version 1703). My processor is an Intel Core i5-4210U CPU @ 1.70Ghz 2.40Ghz. I have 16 GB of RAM installed.
If anyone could point me in the right direction, it would be highly appreciated.
Thanks again,
Josh
robert p
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9.4K Posts
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May 31st, 2017 04:00
Hi jdmathews,
Thanks for posting.
Does the same thing happen when using the laptop as a laptop and not connected to the external monitor?
jdmathews
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May 31st, 2017 10:00
Hi Robert,
I don't believe so. I've only had this issue when it is connected to an external monitor.
robert p
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9.4K Posts
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June 2nd, 2017 06:00
Which external monitor are you using? Is it powered by a separate power cord or USB power? Also, the monitor may be drawing a higher current than the Laptop can provide, which could also cause the issue. Please post the particulars of the monitor so the experts here can provide more assistance. Thanks.
jdmathews
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June 2nd, 2017 15:00
Hi Robert,
I am using an UltraSharp 24 InfinityEdge Monitor (U2417H). It is powered by a separate power cord that came in the box. I posted the rest of the specifications below and the link to the product itself: www.dell.com/.../monitors-monitor-accessories
General:
Display Type
LED-backlit LCD monitor / TFT active matrix
Energy Class
Class A
Power Consumption (On mode)
16.93 W
Diagonal Size
24"
Viewable Size
23.8"
Built-in Devices
USB 3.0 hub
Panel Type
IPS
Aspect Ratio
Widescreen - 16:9
Native Resolution
Full HD (1080p) 1920 x 1080 at 60 Hz
Pixel Pitch
0.2745 mm
Brightness
250 cd/m²
Contrast Ratio
1000:1
Color Support
16.7 million colors
Response Time
6 ms
Vertical Refresh Rate
56 - 76 Hz
Horizontal Refresh Rate
30 - 83 kHz
Video Bandwidth
148.5 MHz
Horizontal Viewing Angle
178
Vertical Viewing Angle
178
Screen Coating
Anti-glare, 3H Hard Coating
Backlight Technology
LED backlight
Color Temperature
5000K, 10000K
Controls & Adjustments
Brightness, contrast, sharpness, saturation, gamma correction, rotation, input select, color temperature, hue, aspect control
OSD Languages
Chinese (simplified), Brazilian Portuguese, English, German, French, Russian, Spanish, Japanese
Features
Game mode, Cinema Mode, 99% sRGB color gamut, integrated cable management, Multi-Stream transport (MST), BFR/PVC-free, Energy Gauge, Mercury free, Transition Minimized Differential Signaling (TMDS) technology, arsenic-free glass, Infinity Edge display
Color
Black
Dimensions (WxDxH)
21.2 in x 7.4 in x 14 in - with stand
Weight
11.71 lbs
Connectivity:
Interfaces
MHL / HDMI
DisplayPort output (MST)
DisplayPort
Mini DisplayPort
USB 3.0 upstream
4 x USB 3.0 downstream
Audio line-out
Mechanical:
Display Position Adjustments
Height, pivot (rotation), swivel, tilt
Tilt Angle
-5/+21
Swivel Angle
90
Rotation Angle
180
Height Adjustment
5.1 in
Flat Panel Mount Interface
100 x 100 mm
Miscellaneous
Features:
Security lock slot (cable lock sold separately), LED indicator, integrated cable management, VESA interface support, 1 USB 3.0 charging port
Included Accessories
Stand, cable management cover
Cables Included
1 x SuperSpeed USB cable - 6 ft
1 x Mini DisplayPort-DisplayPort cable - 6 ft
Compliant Standards
Plug and Play, DDC/CI, RoHS, TCO Displays
Power
Voltage Required:
AC 120/230 V (50/60 Hz)
Power Consumption Operational
68 Watt
Power Consumption Stand by
0.5 Watt
Power Consumption Sleep
0.5 Watt
jdmathews
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June 19th, 2017 17:00
Please help me figure out my problem. It is still not fixed.
jdmathews
5 Posts
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July 10th, 2017 15:00
Please help me solve my problem.
Thank you,
Josh Mathews