Can't get f.lux to work with Windows 10 Lenovo Yoga laptop with dual external monitors attached to Toshiba Dynadock



  • Went through all the forum posts about f.lux not working on Windows 10, and none of the solutions worked. My laptop's internal monitor dims fine, but the external monitors don't. When I open f.lux, the program indicates the monitors have been dimmed, but they have not. Laptop PC is a Lenovo Yoga with Windows 10 64-bit, monitors attached to Intel HD Graphics 520 via a Toshiba Dynadock docking port. Monitor #1 is Dell S2330MX (Digital) using Dell driver 1.0.0.0 dated 3/2/2011. Monitor #2 is an ASUS VS247H (registers in Device Manager as "Generic PnP Monitor") using Microsoft default driver version 10.0.10586.0 dated 6/21/2006. ASUS does not distribute a proprietary driver for this monitor, and I haven't been able to locate anything that identifies another driver that will work with the monitor. Flux worked fine on my old Dell laptop running Windows 7 and attached to a Dell docking station. Now neither external monitor works with f.lux. I've expanded the color range, as one commenter suggested in another post. I've made sure all drivers are up-to-date. Can't find a non-generic driver for the ASUS monitor, but f.lux isn't working on the Dell monitor, either. Any suggestions? Either for a way to make f.lux work or for an alternative dimming program that will work?



  • Forgot to mention that the old laptop was attached to these same two monitors through the Dell docking station, and both monitors dimmed as expected with f.lux. Also, when connected to the dock, the laptop is generally closed, so the laptop monitor is turned off, and the Dell monitor (Monitor #1) is the main screen. Uninstalled and reinstalled f.lux, and expanded the color range again. Still doesn't work.



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