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XPX 15 7590 Thunderbolt Charging
XPS 15 7590
I connected my MacBooks Pro 96W USB-C power adapter to the XPS 15 7590. I get a dialog with "Slow charger - To speed up charging, use charger that came with the device." and then warning saying "Weak charging state, please check power adapter".
Why am I getting this message, this is not an iPhone charger I am connecting to the laptop?
The Specs say for the Thunderbolt 3 (USB 3.1 Gen 2 Type-C) port with Power delivery
Supports USB 3.1 Gen 2, DisplayPort 1.2, Thunderbolt 3 and also enables you to connect to an external display using a display adapter. Provides data transfer rates up to 10 Gbps for USB 3.1 Gen 2 and up to 40 Gbps for Thunderbolt 3. Supports Power Delivery that enables two-way power supply between devices. Provides up to 5V/3A power output that enables faster charging.
ejn63
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May 10th, 2024 14:18
Thunderbolt can only supply 100W to the system -- if your system has a discrete GPU (nVidia), it needs 130 W, so it'll only run at full speed with the OEM barrel connector power supply. It may charge more slowly over Thunderbolt.
cubano100pct
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May 10th, 2024 17:28
@ejn63 Thank you for the explanation. I do have discrete GPU NVIDIA GeForce GTX 1650.