#magewell — Public Fediverse posts

My #SteamDeck (display) setup involves:

- The official Steam Deck docking station with HDMI 2.0 capable of outputting 1440p 120Hz. It's plugged in to power and docks my Deck through the on-device USB-C.

- A #Magewell USB Capture HDMI 4K Plus #CaptureCard capable of passing through 1440p 144Hz. It's connected to my primary PC via USB 3.2 Gen 2, and to the Steam Deck via the HDMI port on the Dock.

- An #LG27GL850 Monitor (HDMI) capable of 1440p 120~144Hz (with Adaptive Sync off). It's connected to the Capture Card via HDMI for passthrough.

I expect my Deck, while docked, to be able to output to my monitor at 1440p 120Hz with my present setup. This is true in desktop mode - the display settings on #KDEPlasma shows that my refresh rate is set to 120Hz, and my monitor OSD shows that it is outputting 120Hz. In #gaming mode however on #SteamOS, the new unified frame rate limit slider and the #Gamescope/#MangoHUD OSD shows a limit of 100Hz, my monitor too shows that it's outputting only 100Hz.

This bothers, borderline triggers me so much :') Especially since #games played on the Deck seem to target/limit to 60Hz (or rather, half the max refresh rate), and half of 100Hz in this case is 50Hz... which seems like a crime. I don't think this was the case prior to SteamOS 3.5 or the latest firmware update that came for the Dock at the same time, but I'm not sure that's even true. Does anybody know what could possibly be causing this and if there's a solution?