bah, i left in the line "they are both radeon based", which is not true.

also, proviso: i am not 100% sure that the one driving the "TV" Is actually achieving 4K resolution, which means that my info may be useless for you.

On Sun, Mar 29, 2020 at 9:59 AM Paul Davis <paul@linuxaudiosystems.com> wrote:

On Sun, Mar 29, 2020 at 3:44 AM Ben Bell <bjb-linux-audio-user@deus.net> wrote:
Apologies for this being only tangentially on-topic, but has anyone got a
recommendation for a decent video card for driving a 4K monitor under
Linux?

I have 2 video cards installed, both selected on the basis of their passive cooling. They are both Radeon based

GK208 [GeForce GT 710B]
Caicos PRO [Radeon HD 7450]

1 of them run two non-4k monitors, the other runs a 4k "TV" screen.

Setting up 3 monitors on Linux is tricky, but the basic set up with just one of either of them was completely painless and I've been happy with results both in terms of noise (none!) and performance.