<![CDATA[F.lux with 2 external Mac displays]]>Hello

I use a MPB circa early 2015 with 2 external displays. One is driven directly from a dvi display port, the other from USB to a DisplayLink to VGA. Flux controls the first display, but not the second. This makes sense because VGA doesn't support a color control protocol. I deal with this by changing the colors on my second display by hand twice a day.
I'm hopeful that some new devices on the market that use the Thunderbolt protocol will fix this problem. They include the Elgato Thunderbolt 3 Dock and the StarTech Thunderbolt 3 Docking Station. But they're expensive, over $250. Would driving two displays through one of these devices enable Flux to control the color of both of them?
Thanks
Arthur

]]>https://forum.justgetflux.com/topic/6298/f-lux-with-2-external-mac-displaysRSS for NodeTue, 21 Jul 2026 13:24:51 GMTSat, 07 Apr 2018 14:33:18 GMT60<![CDATA[Reply to F.lux with 2 external Mac displays on Sun, 22 Apr 2018 16:32:23 GMT]]>I found an INEXPENSIVE solution: use a min-DisplayPort -> DisplayPort cable. BOTH external displays are controlled by F.lux.

More details:
I discarded the USB to a DisplayLink to VGA cable, and replaced it with a mini DisplayPort to DisplayPort cable. You can find cheaper cables elsewhere. The Thunderbolt port on a Mac is a Mini DisplayPort.

Arthur

]]>https://forum.justgetflux.com/post/19481https://forum.justgetflux.com/post/19481Sun, 22 Apr 2018 16:32:23 GMT<![CDATA[Reply to F.lux with 2 external Mac displays on Sun, 08 Apr 2018 16:14:50 GMT]]>@arthur.goldberg I misspoke.
Display 1 is driven dvi - StarTech adapter - VGA: Flux controls it.
Display 2 is driven USB - DisplayLink adapter - VGA: Flux does not control.
My displays support DisplayPort and VGA inputs.

]]>https://forum.justgetflux.com/post/19378https://forum.justgetflux.com/post/19378Sun, 08 Apr 2018 16:14:50 GMT