Notebook with Discrete Graphics May Behave Unpredictably when Connected to Dock or Monitor

Affected Platforms:

• Notebooks with Discrete Graphics Cards

Notebooks with discrete graphics generally ship with AC adapters rated for 130W.

Note: Higher-performance computers may require even more power.

USB Type-C monitors and some docking stations only supply 90W to the laptop when connected using Type-C. Computers with higher power requirements may behave unpredictably with these devices.

• Notebooks that ship with 130W adapters may discharge the battery under heavy load. The hybrid power feature allows them to pull power from both AC and battery when needed.
• Notebooks with higher power requirements may display an underpowered AC adapter error and fail to charge.
• The monitor may flicker or experience other video issues.
• Peripherals may not be detected or work as expected.

This is working as designed. The monitor or dock does not provide enough power to the computer. They were not designed to be the sole power source for computers with higher power requirements. Also, the computer may not be compatible with some docks.

It may be necessary to connect the correct AC adapter to the computer in addition to the monitor or dock. Dell Technologies recommends using specific docking stations for the best experience. Reference to the Dell Commercial Docking station Compatibility Guide or more information.

Note: When two power sources are connected, the laptop only draws from the source with the highest wattage.