The latest version of macOS DDPM 1.3.1.0015 was released on July 9, 2024 and validated up to macOS 14 Sonoma released on September 26, 2023. DDPM 1.3.1.0015 was not tested with the just released macOS 15 Sequoia as all can see under, "Important Information" =

All you can do is periodically check the U2724DE Drivers & Downloads page to see if a newer macOS DDPM is released.

DDPM 1.3.2 will have support for macOS 15 Sequoia. The release date to the applicable Monitors Drivers & Downloads page should be sometime in late October.

Really poor effort from Dell developers not to have this updated for MacOS Sequoia when the beta's have been available for many months! 

I agree that it is unreasonable with the MacOS Sequoia beta out for months, that DDPM does not work on the official release. I hope Dell can act quickly to address this. I have a U4021QW monitor.

<Merged to 1st thread. DELL-Admin>

I've updated my Macbook Pro with Sequoia OS and all of a sudden de KVM switch of my Dell U3824DW Monitor is not working or being recognised and most of the options in the DDPM app are greyed out. What happend and how can this be solved?

same here, U2723QE, I only need hotkey to switch input, unfortunately it broke down after 15.0 upgrade.

I am getting the same on my U4919DW.  So the official Dell answer is to just keep checking back on the drivers and downloads for my monitor and hope some day they update it for Sequoia which has been in open beta since June 10th?  I really hope it doesn't take as long as it did for support for the Apple Silicon Chips to come to Display Manager.

Same issue for me as well for U3824DW.

For me my U2723QE monitor went into split screen mode and until I realised it was a Dell issue I was screaming blue muder at Apple for the update as my screen became unusable. Very poor, if not unprofessional, of Dell not to update this driver in advance!

Same issue for me as well. I have a U4924DW

Same here, U3223QE and U2724DE