UNSOLVED
USB Type C display port stopped working - Latitude 7370
I own a Latitude 7370 and a Dell monitor ( not sure the model)
I purchased a HDMI to mini USB C to connect to the display port, it worked perfectly for about 6 months.
When it stopped working i plugged the HDMI mini to USB C into the charging port ( instead of the display port) and it worked. Which told me that the cables are working fine and the monitor is working fine. But it's too unpractical to work this way because if i use the charge port for the monitor then my battery runs and i can't work,
Can someone help me to find out how i can " repair" the Mini USB C display port? Unfortunately my warranty just expired.
Thanks in advance!
Blackswordsman13
6 Posts
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Posted June 11th, 2021 02:00
SOLUTION
Hi,
I had this issue yesterday with my Dell Precision 5540 and Dell U3219Q monitor after a power outage where the display was previously working via the USB-C suddenly stopped. I tried searching the net but didn't find a solution and opted to use the HDMI port which worked, I also tested the USBC with my iPad Pro which worked perfectly. Today while I got it to work though so I wanted to share my solution that I found by chance:
Connect another display OR two of the Monitor inputs eg, the USBC and the HDMI.
Right click on desktop and Open "Dell Display Manager" (install it if you don't already have it)
It will display the summarized version, At the bottom click on "Open Dell Display Manager"
On the Basic Tab, right at the bottom mine showed a tick box that said something like "Enable display matrix control"
NOTE: My USBC was connected as well as the HDMI on the laptop at the time. I've tested it and this option only appears on the "Basic" tab if "Dell Display Manager" thinks that there is more than one external monitor. I connected both display outputs on the laptop to the same monitor which fooled "Display Manager" into thinking I had 3 displays, the laptop display a USBC display and an HDMI display. Found this totally by chance because I had the HDMI connected for the display and I was still using the USBC from the monitor to my laptop because the keyboard is connected to the monitor and then via the USBC to the laptop because when it was working I just had a single USBC cable to connect to my laptop for both display and keyboard. Hope this helps someone. Hopefully Dell also sees this and figures out why or updates the app the show the "Enable display Matrix" always.
DELL-Cares
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Posted December 17th, 2020 09:00
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