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Affected Products: Dell UltraSharp 27 4K Thunderbolt Hub Monitor U2725QE Dell UltraSharp 32 4K Thunderbolt Hub Monitor U3225QE The monitor may display several issues when connected to a computer: The ambient light sensor continuously adjusts the brightness. When connected using a Thunderbolt (primarily observed in MacBook), the USB hub is recognized as a USB 2.0 device. LID closed is not enumerated when waking from sleep Second display not detected after waking from modern standby using daisy chain
Firmware code issues and enhancements.
The engineering department has released a monitor firmware update M2T102, A01 . The updated firmware is posted on the monitor's support page. Dell UltraSharp 27 4K Thunderbolt Hub Monitor U2725QE Dell UltraSharp 32 4K Thunderbolt Hub Monitor U3225QE Note: The M2T102, A01 update addresses the ambient light sensor continuously adjusting the brightness issue. This article is updated as more information becomes available.
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