I have an issue with my WD19TB dock connected to my new Dell Precision 5530 (i9 version). Of course this dock is connected to the laptop with a single USB-C TB cable. Two HP LP2475w screens (1080p 60Hz) are plugged to the dock using DisplayPort.
When both screens are connected, I randomly get some flickering on the screen (image vibrate, quick black image ...) and this appears randomly on one screen, the other, or both, and this is completely unpredictable.
- updated my laptop firmware to latest version
- updated display drivers (intel + nvidia) to the latest available on Dell support website
- update Thunderbolt controller drivers to the latest versions.
I tested with many Displayport cables: long, short, also brand new.
I tested both screen on a Lenovo dock, they are working fine. I also tested both screen connected on WD19TB with Displayport to HDMI adapters and HDMI cables: no issue at all !
As soon as I plug back my screens with a Displayport cable this issue starts again 😞
As WD19TB is quite recent, do any user already reported some malfunction with Displayport ? I have checked, no firmware update is available yet for this dock.
Please advice, it's hard to work with such flickering effect all day long !