Unable to power my monitor + charge my device using USB Type C port

[downloaderfan]

Hi All,

 

I have a BenQ EW3270U monitor to which I've connected ThinkPad E490 i7 version laptop via type c to type c cable (DP over type c). The thinkpad only has 1 type c port, which is used primarily for charging using it's power adapter. But when connected to the monitor, the charging does not occur. Why? The monitor came with a 16amp plug, but since I didn't have a 16amp socket, I bought to 16 amp to 6 amp converter. Could this be the reason? Or does the thinkpad lack something which prevents this?

[Kilrah]

That monitor does not seem to support charging an external device.

[downloaderfan]

On 4/4/2022 at 2:03 AM, Kilrah said:

That monitor does not seem to support charging an external device.

It does charge my phone though when connected via type c to type c cable....

[Kilrah]

Could be that the power profiles it supports are too all too low for the laptop to consider charging from. 

[downloaderfan]

7 hours ago, Kilrah said:

Could be that the power profiles it supports are too all too low for the laptop to consider charging from. 

Could it be because I connected it to a 6 amp socket and not 16 amp?

[Kilrah]

Nope. The monitor draws a max of 76W which is about 0.6 amp. 

That also means that even if the monitor supported power delivery it's probably only able to deliver 20-30W to an external device and from what I can see your laptop expects a 45 or 65W power adapter.