Everything above 3A implies an e-marked cable, and they can be a maximum of 4m in length (USB-C - Wikipedia). Those long-ish cables will not support video, they’re for charging and USB2.0 only.
The video/USB3.1-capable cables maxes out at 2m lengths. For USB3.1 Gen 2 they can’t be more than 1m. HDMI 1.4 alt-mode should work with 2m cables, but I haven’t tested that myself.
Edit: The only video alt-mode supported by the PPM USB-C video port is alt-mode DP, not HDMI → Connecting laptop using USB-C cable - #21 by Philips_Support_P