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BooRadley908
1 Rookie
•
7 Posts
1
31078
September 22nd, 2020 13:00
U2720Q, MacBook Pro, flickering
I've noticed a fairly consistent and worsening flickering with my new Dell U2720Q where the display goes dark and then reconnects.
At first I thought it might have been a loose cable but I've ensured that the USB Type-C cable is tight at both the monitor and laptop end.
Any advice on troubleshooting or isolating the problem?
Details of my set-up:
Dell:
Settings:
- USB Type-C Prioritization: High Resolution
- Response Time: Fast
- Smart HDR: Desktop
- Aspect Ratio: 16:9 wide
Display Info:
- USB Type-C connection
- DP Capability: DP 1.4 (HBR 2)
- HDMI: 2.0
- USB: 2.0
MacBook Pro:
24508
1
Posted September 23rd, 2020 06:00
Thank you! We have received the required details. We will work towards a resolution. You may also receive assistance or suggestions from the community members as well.
#IWork4Dell
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Dell Partner GEM Program, Out of Warranty Support Options, BIS (Bureau of Indian Standards) certificate, Get a copy of your Dell invoice24495
0
Posted September 23rd, 2020 11:00
Dell mentioned that they wouldn't be able to help me so this issue is still outstanding in case anyone in the community has anything to offer here.
I'm leaning towards some kind of data speed or power problem.
Latest evidence for that is that the lights on my keyboard which is connected to the monitor also flicker at times when the monitor's display does.
24423
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Posted October 1st, 2020 06:00
@BooRadley908
I think there are two USB-C Ports behind the monitor. One with charging, the other one without. Try both.2. In the monitor on screen menu, you have two connection modes. Try both
Curious to hear back
24419
1
Posted October 1st, 2020 07:00
Only one of the ports delivers enough power to power the laptop. That's the one I'm using.
In the OSD, only one of the modes—"High Resolution"—can deliver this resolution with 60 Hz refresh rate. That's the one I'm using.
I'm leaning towards a problem with the cable or the port on the display or my Mac as it seems to happen when I move the monitor around on its arm.
24292
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Posted October 21st, 2020 16:00
I'm experiencing the exact same issue with my U2720Q. Sometimes the flicker is more frequent, sometimes less frequent. It's never off for more than .5 of a second.
I'm connecting via USB-C to the top left port (if looking down onto the MacBook)
Specs:
24255
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Posted October 22nd, 2020 10:00
Got it, thanks @BooRadley908 ... appreciate the help! Just ordered the same one
24209
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Posted October 28th, 2020 14:00
Hmm, this worked for a while but today the video signal and power dropped completely from the USB-C port.
I've read through this and am not having any luck troubleshooting with any of those steps.
Using a Dell UltraSharp USB-C Monitor with a MacDid I just get a dud Dell?
23188
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Posted January 8th, 2021 04:00
Hi I am facing the same problem. Tried already different USB-C cables but were not able to solve the problem.
5898
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Posted January 21st, 2021 14:00
Works great so far with the recommended cable. The factory supplied cable is garbage. Thanks Dell for wasting 3 hours of my time with your terrible support team.
BooRadley908
1 Rookie
•
7 Posts
24287
2
Posted October 21st, 2020 18:00
Heads up @gstebbins that I got a new Nimaso USB C to USB C (Gen 2, 3.1, 100W, PD) cable and so far so good on the problem not recurring. I'll let you know if that continues.