Google Pixel Slate supports DP Alt Mode on USB Type-C, but the new U2419HC doesn't detect the Google Pixel Slate. I've hard reset the Google Pixel Slate and tried different USB Type-C cables from both Dell and Google.
For my Dell notes, click my Dell-name and private message me the U2419HC service tag number.
I do not see the Google Chrome OS on the U2419HC supported Operating system list. On a supported Windows PC with USB Type-C out port, does the U2419HC and provided USB Type-C cable (C to C) function? If yes, then you should post the issue on the Google Chrome OS Forum to see what other users have tried.
I'll PM the tag # when I get back to the monitor.
C-to-C video works with other systems (e.g., MacBook Pro 2017).
Google support says they're compliant with the DP Alt Mode spec, and users report C-to-C video working with other monitors.
I'm really not interested in playing multi-vendor finger-pointing. Will you be opening an issue with whatever engineering group is responsible for U2419HC firmware, or not? All I want from this conversation is to surface this issue into *both* device engineering support workflows so that it eventually gets resolved.
I'm having this same issue with the U2719DC. Verified the monitor does work with Windows via USB-C but not with the Pixel Slate.
Unfortunately, I have no information on the Pixel Slate. You may want to contact them for information using the monitor with their product.