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September 14th, 2019 20:00
XPS 13 9370 External USB-C DP-Alt Mode Monitor not working
I have recently acquired a USB-C enabled DP-Alt Mode Monitor, which is not recognized by my XPS 13 9370. When the monitor is connected to the laptop the keyboard stops working properly and starts skipping keypresses.
I tried different operating systems such as Ubuntu 18.04 and Windows 10, the XPS 13 didn't detect the monitor with either of those.
The monitor works perfectly fine on a DP-Alt Mode enabled Smartphone and Lenovo Laptop.
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jphughan
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September 14th, 2019 21:00
Is your system/BIOS up to date? There’s a known issue with the older XPS 13 9350 and certain Dell USB-C displays, but I haven’t seen any equivalent reports with the 9370. And this is a long shot, but have you tried all of the USB-C ports? The left ports are Thunderbolt-capable and the right one (ones?) are just regular USB-C. That shouldn’t make a difference, but it might.
minsam
105 Posts
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September 14th, 2019 23:00
This situation can be the version of this monitor that is not suitable for this laptop.
spyfly
3 Posts
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September 15th, 2019 04:00
I've tried every single port, it rather seems to be some issue with the laptops firmware.
A-M-R
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September 21st, 2019 15:00
Have you tried updating your bios? (Someone above mentioned it) This appears to be the latest bios update:
https://www.dell.com/support/home/us/en/04/drivers/driversdetails?driverid=3n2x8
I'd like an answer to your question, as I'm looking at a portable external monitor that uses USB-C DP-Alt Mode, as well.
Thanks!
spyfly
3 Posts
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September 21st, 2019 15:00
Hi,
I'm already running the latest BIOS Version 1.11.1.