If you don’t want to disable Fast Startup and still need the blue light filtering capability, have a look at the 3rd party freeware f.lux.ĭisabling Fast Startup is a compromise and a poor tradeoff for Night Light.
Then the system goes to hibernate mode (instead of traditional cold shutdown) so that the next boot up till the login screen will be quicker (30-70 % faster).ĭisabling Fast Startup and restarting the system brought back the Night Light functionality back. When you shut down the computer with fast startup enabled, the user accounts are logged off completely. Hurray! Disabling Fast Startup brings back Night LightĮventually, disabling the Fast Startup option was the ticket!įast startup is a hybrid of cold startup + hibernate. HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\CloudStore\Store\Cache\DefaultAccount\$$īut none of the above workarounds helped me. For me, removing the keys did not have any effect. Next steps: We are working on a resolution and will provide an update in an upcoming release.įor some users, the subsequent update, the June 11, 2019-KB4503293 (OS Build 18362.175) update fixed the Night Light issue.Īnd, the other users have indicated that deleting the following registry key and rebooting brought back the Night Light feature but it worked only momentarily for some users. Note We recommend that you do not attempt to manually update using the Update now button or the Media Creation Tool until this issue has been resolved. For other color setting issues, restart your computer to correct the issue. Workaround: If you find that your night light has stopped working, try turning the night light off and on, or restarting your computer. Running applications that rely on custom gamma rampsĪffected platforms: Client: Windows 10, version 1903.Updating display drivers or making other display mode changes.Connecting to (or disconnecting from) an external monitor, dock, or projector.
Microsoft has identified some scenarios where gamma ramps, color profiles and night light settings may stop working. Microsoft has identified some scenarios where night light settings may stop working, for example: Gamma ramps, color profiles, and night light settings do not apply in some cases
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