Solved: HP Spectre won't charge from monitor USB-C port - HP Support Community

thebenb · ‎09-24-2018

The laptop is supposed to support charging and video through the same USB-C cable.

When I connect it to my monitor, the video is fine, but it doesn't charge and I get the message "The AC adapter is not compatible with this system"

The monitor is a LG 29UM69G

The monitor manual is a bit vague, but does suggest it should be supplying 30W so I'm wondering if it's just the laptop being a bit fussy.

It would be great to be able to charge and do video with the same cable.

banhien · ‎09-24-2018

@thebenb wrote:
... The monitor manual is a bit vague, but does suggest it should be supplying 30W .

@thebenb

You need at least 45W. From the following specs

https://www.lg.com/us/monitors/lg-29UM69G-B-ultrawide-monitor

The USB-C port for your monitor won't charge anything. I

Regards.

BH
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banhien · ‎09-24-2018

@thebenb wrote:
... The monitor manual is a bit vague, but does suggest it should be supplying 30W .

@thebenb

You need at least 45W. From the following specs

https://www.lg.com/us/monitors/lg-29UM69G-B-ultrawide-monitor

The USB-C port for your monitor won't charge anything. I

Regards.

BH
***
**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

thebenb · ‎09-25-2018

Thanks.

It does have some power though, as it charges my phone.

Guess it's under the power required for the laptop though.

I'll keep a lookout for a monitor that does have adequate power output.

HP Spectre won't charge from monitor USB-C port

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