Asus Laptop won't turn on if connected to monitor

Jun 24, 2018
So a couple of days ago my Asus N56D laptop screen stopped working so I decided to open it to verify that all the connectors were in place and everything. I did so and when I closed it, it worked fine and the screen was not blank anymore! Yet, yesterday the laptop wouldn't start even if plugged. I opened it again and discover that it would turn on only if I unplug the monitor connector. It doesn't appear like the monitor connector is broken or like one of the pins is missing. I tried to clean the dust from the connector and laptop in general but nothing changed. I finally tried to change the RAMs to see if it did something but it did not change anything.
Summary: the laptop only turns on if it is not connected to its own monitor (keyboard lights turn on, processor and fan start working). If connected, it doesn't turn on at all (nothing happens that was said before happens)

Thank you for your time,
Then there is either a problem with the cable that connects it, the display itself, the GPU or the motherboard (possibly where the cable connects). You can either do the work yourself, testing them one at a time, or take it to a tech that can.
Thread starter Similar threads Forum Replies Date
paccjas Laptop Tech Support 1
T Laptop Tech Support 8
282aviral Laptop Tech Support 1
aparky42 Laptop Tech Support 1
Hifrotech Laptop Tech Support 0
geriuu Laptop Tech Support 3
J Laptop Tech Support 0
sulphur88 Laptop Tech Support 1
miluti Laptop Tech Support 3
S786 Laptop Tech Support 1
N Laptop Tech Support 2
T Laptop Tech Support 2
J Laptop Tech Support 4
S Laptop Tech Support 2
5 Laptop Tech Support 13
N Laptop Tech Support 2
P Laptop Tech Support 1
J Laptop Tech Support 1
G Laptop Tech Support 2
C Laptop Tech Support 4
Similar threads
Solved! Issue Connecting a Secondary Monitor to Laptop
Solved! How to connect 144hz laptop to 144hz monitor
Question My laptop has both Mini DisplayPort & HDMI, can I connect TWO external monitors at same time?
Discussion Correct cable to connect laptop to external monitor
Question Can i connect a 144hz Monitor with my laptop?
Solved! Connect 144hz monitor per docking station to laptop
Question Possible? Dual monitors with two different laptops connected to ThinkPad ThunderBolt port replicator
Question External monitor black screen when connected to my laptop HDMI port
Question HP Notebook 17-x010ca was dropped 3ft onto a rug; backlight works, but no picture. Everything else seem to work when connected to an external monitor.
Question Hp Laptop connection to Barco Monitor
Question Connection to laptop monitor got cut off, everything should be working. But hmdl shows black screen.
Question How to wirelessly connect 2 laptops to an external monitor
How to connect newer USB-C laptop to older E-port dock (with no USB-C)
low frame rates on 1050ti laptop screen, but better when connected to monitor.
Laptop wont connect to monitor
How to connect two extra HDMI monitors to a HP Pavillion laptop on extended mode
I have an HDMI converter cable to use with HP monitor whilst connected on my Acer aspire laptop but ITs displaying for five m
Solved! Cannot connect laptop to external monitors
Solved! Connecting external monitor to broken laptop issue(video mode not supported)
Dell G7 freezes while gaming, the laptop is closed, connected to external monitor, but resumes once the lid is opened