Hi everyone! I’m trying to get a HP EliteDesk 705 G3 Desktop Mini to work as a Linux media player for my LG smart TV. My TV only has HDMI input, and my EliteDesk only has Display Port output, so I’m using a (reported) 4k60hz DP to HDMI adaptor, with a HDMI 1.3 cable.
Specifically, I want to use my computer to play 4k content on my television. I tried using HDMI 4k60hz and 8k cables, with OpenSUSE Leap with Gnome installed, but that led to the maximum resolution being 640x480. I ended up trying the HDMI 1.3 cable and that did work for whatever reason.
I’m not a fan of Gnome, though, so I wanted to switch to KDE instead. I can’t get 4k to work there at all. It has installed just fine, and I can use the computer with my 1080p monitor, but whenever it attempts to switch to 4k on my TV, I get a black screen right before I can login by entering my password. And if it boots on my TV in 1080p, I don’t have a visible cursor.
reportctl afterwards doesn’t really show any errors.
I added inxi -Gxx as an image.
Any thoughts?


Most likely an adapter issue, some failure in communicating the possible resolutions through the HDMI/DP conversion.
Can you find a flex io HDMI port on eBay? Just make sure you get the right version of the flex io card. That’s the most “supported” way to deal with ports, but it’s more expensive than a simple adapter cord.
Looking online I only see G4 (and maybe later) ones. But thanks for the tip.