Linux FINALLY Gets 4K60 Capture?! Elgato 4K X + Kernel Patch Tested
If you’ve ever tried capturing 4K60 gameplay on Linux, you know it’s been… basically impossible—until now.
In this video, I test the Elgato 4K X capture card on Linux and show how a new kernel patch (featured in CachyOS) unlocks full 4K60—and even 4K120 support inside OBS Studio.
I compare behavior between Fedora and CachyOS, explain why the device was limited to 5Gbps before, and show how the patched kernel enables full 10Gbps bandwidth for proper high-resolution capture.
What you’ll see in this video:
4K60 capture working on Linux (finally!)
Differences between Fedora and CachyOS kernels
Elgato 4K X performance and features (HDR, 4K120, passthrough)
Real gameplay capture from Nintendo Switch 2 (Metroid Prime 4, BOTW, TOTK)
I’ll also talk about future plans like HDR capture testing (H.265 / AV1), Linux distro reviews using a secondary PC, and more live streaming setups.
This is a huge step forward for Linux streamers, especially those running dual PC setups or capturing console gameplay via HDMI.
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