Windows Adaptive Brightness
Press the Start button, then search for Power Options.
Edit Plan Settings
Click on Change plan settings on whichever power plan on or want to change.
Adjust Adaptive Brightness
Scroll down till you get to the Display section and click on the plus sign to show the submenus. Now press the plus sign next to Enable adaptive brightness to expose its settings.
https://windowserrors.org/how-to-change-brightness-on-windows-10/

f.lux v4 has an option to turn off hardware cursors, and it's faster than mouse trails, which tends to lag.

@herf Thank youuuu!!

Usually crashing Windows takes a video driver.

Since we are not doing anything new I would try downgrading the nvidia driver to see if it helps?

Hey,

thanks for posting. I was having the same issue and was looking what to do next.Then I came across your thread and now my issue is solved.Thanks for the information....it was quiet helpful.

Best Regards !!

Thanks for writing this in depth post. You covered every angle. The great thing is you can reference different parts.

I use this LED screen as my extended monitor and I have flux installed. sometimes when I turn off flux to edit a photo with photoshop, even though the color I've set is white, when I have saved the image, it doesn't come out fully white in the screen. Does it have something to do with flux or the settings of the screen?

Hey all. A simple solution that worked for me after a good year of hard coping. Windows 10 has a built in feature within display settings called "Night Light" which is on by default and seems to clash with the flux app. All I had to do was go to windows settings -> system -> display. I found the toggle switch to turn windows night light OFF underneath the Color header. I disabled Night Light and have not had any problems since! Long live flux! I hope you all didn't waste too much money!

I would also like to have a setting to permanently change the brightness setting, instead of the brightness resetting every day at sunrise.

Didnt fix my problem. And i didnt have sytem restore
So here's what i did, should work for all:

Wins > device manager > enter uninstall the display driver update it automatically or find the driver online
(you may have to restart the computer before being able to do this) restart until its done

flux broke the display driver itself, thats why literally nothing will work until you reinstall it.

I think the only way they will ever create a 64-bit version of F.lux is if they become forced into it someday due to compatibility (like when 32-bit support from operating systems truly becomes obsolete). Do a bit of research on the subject of 32-bit programs vs. 64-bit programs, and you will find that the only real benefit would be the potential of extra security that 64-bit programs can have, but it would come at a cost of much more work for the developer because they would have to be developing and supporting both a 32-bit and 64-bit version of the program.

So, for them to create a 64-bit version would give them double the workload they have now. It just wouldn't be worth it in the least bit and it wouldn't make any sense for them to go to all of the trouble of making and supporting a 64-bit version right now on top of their 32-bit version.

Here's just one of many articles I found that I learned this (and more) from: https://www.howtogeek.com/194119/why-are-most-programs-still-32-bit-on-a-64-bit-version-of-windows/

The only other benefit of 64-bit besides the potential for better security is that a 64-bit program can use more than 4 GB of memory. F.lux uses only 8-9 MB (yes, that's 8 to 9 Megabytes). There are 4,096 MB in 4 GB, so there's no risk whatsoever of F.lux ever needing so much memory that we would ever see or feel any difference from a 64-bit version.

There's no argument to be had though about any performance benefits with a 64-bit F.lux (I see lots of people claiming 64-bit always provides better performance). The only time you see a performance benefit is with programs or games that can benefit from using more than 4 GB of memory. In such cases, the 64-bit version would definitely provide better performance due to being able to use as much memory as it needs to, instead of being restricted to 4 GB in the 32-bit version.

I get that 32-bit support will be just as obsolete as 16-bit someday (I get that 64-bit is "the future"), but I think we should trust good developers, such as the one who makes F.lux. I am just about 100% confident that I could guarantee you that when a 64-bit version of F.lux becomes necessary due to 32-bit finally becoming 100% obsolete, they will create it and it won't be too late. As of right now though, creating a 64-bit version would mean they would have two versions of F.lux for each operating system to keep updating and improving and providing support for: a 32-bit version, and a 64-bit version. One version for each OS is plenty of work for them as it is, and as of today, it has to be a 32-bit version for the sake of compatibility for everyone.

So, I think we should stop asking them for a 64-bit version. I think they will make a 64-bit version when it becomes safe to discontinue the 32-bit version.

Even though some customers could have expressed this in a kinder manner, I also think that more customisability would significantly improve the user experience. I would like to be able to shorten sunset time by a couple of hours, or set a continuum between sunset and bedtime rather than a sudden change, or decide to postpone bedtime a little bit. I understand the software is designed with attention to research on circadian cycles, and that is great, but I still think there needs to be some degree of flexibility. The user interface could contain contextual information so one can understand why a certain timing is recommended, and why there must be a minimum amount of hours without bright light, without forcing people to do so, if they don't want to. I am also wondering how the screen brightness has an impact on melatonine generation. I keep the brightness of my screen quite low, so when bedtime time comes, it gets really dark, too much to be able to work comfortably. Fine if it's 30 min/1h before going to bed, but 2-3 hours in advance, it's not ideal. Of course I can set custom colours but then I can't have a properly dimmed screen right before going to bed. I would definitely consider making another donation, the moment that this was implemented. Thanks for your efforts.

Hello zonanima,

I had the same problem for you for a while. Eventually, I found out that I needed to hold down the function key while pressing Alt + PgUp/PgDn because otherwise, my keyboard would register only as Alt + Up/Down, which does nothing. Certainly, this doesn't apply to every keyboard but it may for yours.

Best,
Bermersher

@Tungsten_smooth - Cannot reduce contrast in Mac anymore, but can increase the contrast. Any other solution? The night mode does work, and one can increase the warmth from system settings, but Flux allows one to control the warmth directly. Thus, do you have any other solutions ?