I recently purchased a LG C5 and was using a 6' normal HDMI cable for the past month to connect my tv to my soundbar via the HDMI port 2 (eARC / ARC). I'm working on running the cords through the wall to hide them and wanted to switch to a 10' cable to give myself some more slack, and for the life of me I cannot find a single 10' cable - after trying four of them now - old crappy HDMI, "ultra high speed", "ultra high speed certified" that works. But every time I try my 6' normal HDMI cable I have zero issues. I've turned eARC on and off with no impact.
Does anyone have some insight?
Edit: example of 6' HDMI cable working: https://www.amazon.com/dp/B00T58JLPI?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_21
Example of 10' HDMI cables NOT working:
https://www.amazon.com/dp/B0FGTYPND8?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
https://www.amazon.com/dp/B0CGX2QS9Y?ref=ppx_yo2ov_dt_b_fed_asin_title
https://www.amazon.com/dp/B0FJJNMPB4?ref=ppx_yo2ov_dt_b_fed_asin_title
https://www.amazon.com/dp/B07B7J8LD4?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_2&th=1