USB-C charger not detected

[ZannyMcZanny]

Devices in question:

• HP ENVY x360 15.6 inch 2-in-1 Laptop PC 15-eu0000 computer.  This device supports USB-C charging, as specifically mentioned in the device's service manual. 
  • This Envy was preloaded with Windows 11.
  • All updates from Windows Update and those listed on the HP Software and Driver Downloads page have been applied.
  • The preloaded bios (F.06) is newer than the most recent one listed on the Software and Driver Downloads page (F.04).
• I have purchased this USB-C power adapter. This device delivers 96Watts over a USB-C connector.
  • The item's description says it's compatible with HP devices (among many others).

The problem:

• I have plugged the USB-C power adapter into my Envy computer. This USB-C power adapter does not let my Envy charge the battery.  My Envy does not even realize a charger is present at all. 
• I can charge other devices using this same charger, including a HP Chromebook. These other devices are able to recognize the charger and power the device. This implies that the charger itself works fine.

My Question;

• Why is my Envy not able to recognize a USB-C power adapter, even though it should be able to power the device?
• If this is due to a known incompatibility, what is that incompatibility? What do I need to look for when I buy a different USB-C charger to remedy it?

[pbroussard]

More than likely that charger doesn't supply the specific voltage your laptop needs. HP's USB C charger like this- HP USB C charger   It delivers 5V, 9V, 10V, 12V, 15V, or 20V of power, auto sensing whatever the device needs. I see no mention of the voltages that charger can produce, so it's unlikely that it support your particular model.

[ZannyMcZanny]

According to the writing on the USB-C charger, it supports:

• 5V @ 3Amps
• 9V @ 3A
• 15V @ 3A
• 20.5V @ 4.7A

How do I find the specific voltages that are required in this Envy's USB-C port?

[banhien]

@ZannyMcZanny 

What is your Laptop PC 15-eu0000 ? For example

            HP ENVY x360 Convert 15-eu0001nn

Your machine should have same ports as the above machine. It

• has 1 SuperSpeed USB Type-C® 10Gbps signaling rate (USB Power Delivery, DisplayPort™ 1.4, HP Sleep and Charge) port
• uses 65 W AC power adapter

You can use a compatible USB-C chager with wattage rating 65W to charge your machine. Your machine is a good candidate for an HP USB-C Gen 5 dock which give you many things using a single cable.

Regards.

[ZannyMcZanny]

> What is your Laptop PC 15-eu0000 ? For example

This device is specifically a HP ENVY x360 Convertible 15m-eu0043dx

>  Your machine should have same ports as the above machine. It has

> *1 SuperSpeed USB Type-C® 10Gbps signaling rate (USB Power Delivery, DisplayPort™ 1.4, HP Sleep and Charge)

> * port uses 65 W AC power adapter

>  You can use a compatible USB-C chager with wattage rating 65W to charge your machine. Your machine is a good candidate for an HP USB-C Gen 5 dock which give you many things using a single cable.

It does indeed have those ports.  I got this device specifically because it ought to be a good candidate for a docking station. I got a 90 watt adapter so that there would be enough power to go around between a dock and the computer itself.   Not all docks include a power adapter.

The question comes down to: What exactly defines a USB-C charger to be compatible or not?  

[banhien]

@ZannyMcZanny 

Very hard to find from HP even with the following charger

           https://www.hp.com/au-en/shop/hp-65w-usb-c-power-adapter-1he08aa.html

which only

        Compatible with HP Pro X2 612 G2; HP Elite X2 1012 G2; HP Elitebook x360 1030 G2 

I don't have money to buy them all to test. I used to borrow many things from work but very hard now because I am a retiree. I bought an HP USB-C Gen 5 dock for my Elitebook machine and I did test on my HP Envy machine, Dell 2-in-1 13-7000 series machine ...

Regards.