f.lux v4.76 on Window 7 SP1 -- Stuck in "daylight" mode

  • On Win7 SP1, f.lux v4.76 runs from the Startup folder of my "Standard User" account when I boot up. I've selected "Recommended Colors."

    Here's the problem: After sunset, f.lux is stuck in "daylight" mode and does not change to "nightime" mode. If I exit f.lux and then restart it, it goes straight to "nightime" mode.

    f.lux used to work properly on my box, but I don't remember when it began acting up.

  • Does the graph in f.lux preferences look right?
    Can you post options > Driver info?

  • The graph looks OK -- bright after sunrise and dim after sunset with smooth transitions between the two states.

    When I run a "24 Hour Preview" of the "Recommended Colors," the screen colors change as expected.

    Which specific options do you want to see?

    Here's info on my video card:

    Graphics Card Manufacturer Built by ATI
    Graphics Chipset RADEON X700 Series
    Device ID 5E4B
    Vendor 1002

    Subsystem ID 2302
    Subsystem Vendor ID 1002

    Graphics Bus Capability PCI Express
    Maximum Bus Setting PCI Express x16

    BIOS Version
    BIOS Part Number 113-A37910-103
    BIOS Date 2005/04/08

    Memory Size 256 MB
    Memory Type DDR3

    Core Clock in MHz 425 MHz
    Memory Clock in MHz 432 MHz

    Here's info on the driver software:

    Driver Packaging Version 8.593.100-100210a-095951E-ATI
    Catalyst™ Version 10.2
    Provider ATI Technologies Inc.
    2D Driver Version
    2D Driver File Path /REGISTRY/MACHINE/SYSTEM/ControlSet001/Control/Class/{4D36E968-E325-11CE-BFC1-08002BE10318}/0002
    Direct3D Version
    OpenGL Version
    Catalyst™ Control Center Version 2010.0210.2339.42455

  • OK, it seems like this card never had a driver release for Windows 7 (only Vista) and the card is from 2004, but you are using the latest driver.

    Is it maybe failing to restore from standby? i.e. does it work sometimes? Also is f.lux still running when it's failing (see if you can bring up the preferences)? Maybe it is crashing...

  • f.lux is running when stuck in "daylight" mode after sunset. I can pull up the preferences and change them. That's how I exit f.lux.

    I can't say if f.lux works sometimes, because I don't remember the last time I was working on my computer at sunset, but I can check.

    Question: Can f.lux be affected by Windows' screen saver and/or power management settings? I can't get the display (Dell E173FPc, correct driver installed) to turn off when the computer is idle. The power button flashes orange (display off) then turns green again and the display shows the mouse cursor on a black background. (This is a problem I hope to take care of in the near future.)

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