The HDMI output works both on oem kernel 5.6 and 5.10.
It seems I can't reproduce your problem, but your hardware config is a bit different from what I have in hand.
Could you file a bug to Dell customer support? They will provide me the hardware if they expect the hardware can work with open platform.
Based on your result, the hardware also can't work with Intel's development branch, then the Ubuntu's kernel doesn't work for you as expect.
I have verified on two certified hardwares.
https:/ /certification. canonical. com/hardware/ 202007- 28055/ /certification. canonical. com/hardware/ 202006- 27982/
https:/
The HDMI output works both on oem kernel 5.6 and 5.10.
It seems I can't reproduce your problem, but your hardware config is a bit different from what I have in hand.
Could you file a bug to Dell customer support? They will provide me the hardware if they expect the hardware can work with open platform.
Thanks,