<![CDATA[MacOS Catalina Bug]]>Flux doesn't seem to work on latest Catalina OS. After turning it on, it flashes and colors/temp looks weird.

]]>https://forum.justgetflux.com/topic/7202/macos-catalina-bugRSS for NodeSat, 07 Mar 2026 20:54:02 GMTTue, 08 Oct 2019 00:38:58 GMT60<![CDATA[Reply to MacOS Catalina Bug on Mon, 23 Dec 2019 14:29:44 GMT]]>I have similar problem. I cannot access the controls for flux by clicking on the app. The app is running on its own and is way to dark and I cannot get to where I can make adjustments. I am using MacOS Catalina on a 2019 MacBook Pro 15".

]]>https://forum.justgetflux.com/post/22720https://forum.justgetflux.com/post/22720Mon, 23 Dec 2019 14:29:44 GMT<![CDATA[Reply to MacOS Catalina Bug on Tue, 12 Nov 2019 20:38:49 GMT]]>Okay try again with 39.9873?

Link is here:
https://forum.justgetflux.com/topic/7248/mac-beta

]]>https://forum.justgetflux.com/post/22532https://forum.justgetflux.com/post/22532Tue, 12 Nov 2019 20:38:49 GMT<![CDATA[Reply to MacOS Catalina Bug on Fri, 08 Nov 2019 16:17:53 GMT]]>Try this new build instead?

https://forum.justgetflux.com/topic/7248/mac-beta

]]>https://forum.justgetflux.com/post/22498https://forum.justgetflux.com/post/22498Fri, 08 Nov 2019 16:17:53 GMT<![CDATA[Reply to MacOS Catalina Bug on Thu, 07 Nov 2019 17:36:54 GMT]]>I should say instead of simply Catalina, OSX 10.5.1 to be more precise

]]>https://forum.justgetflux.com/post/22488https://forum.justgetflux.com/post/22488Thu, 07 Nov 2019 17:36:54 GMT<![CDATA[Reply to MacOS Catalina Bug on Thu, 07 Nov 2019 17:34:00 GMT]]>Mac OS Catalina. Macbook Pro 2019. I have the same problem. Flashing tints and colors.
This happened only after installing Catalina.
I do not have access to Feedback Assistant.
It was stable for a few days with True Tone turned on – everything seemed to work normally.
Then it started flashing again, cursor is day white (with true tone on or off) while everything else is evening-toned.
Then switching to movie mode makes grays go black, with true tone on.
Turning true tone off makes black go away, cursor is still day white.
Overall still buggy, can't find a combinations of settings to make things stable. I have to quit and instead use apple's night shift.

]]>https://forum.justgetflux.com/post/22487https://forum.justgetflux.com/post/22487Thu, 07 Nov 2019 17:34:00 GMT<![CDATA[Reply to MacOS Catalina Bug on Wed, 06 Nov 2019 06:00:47 GMT]]>I can also add that Flux is all jacked up on my 2018 MacBook Pro. It turns really dark red late at night and I have to disable it for an hour to make my computer usable. I'm on 10.15.1 as well.

]]>https://forum.justgetflux.com/post/22479https://forum.justgetflux.com/post/22479Wed, 06 Nov 2019 06:00:47 GMT<![CDATA[Reply to MacOS Catalina Bug on Sat, 02 Nov 2019 03:47:43 GMT]]>The flashing is no longer happening as of 10.15.1, but now I'm seeing a new issue. With True Tone on, enabling Movie Mode drops the screen to the deepest, late-night amber color rather than lightening it up — ie. it does the opposite of what Movie Mode is supposed to. The blue cursor others have mentioned appears when this happens as well.

With True Tone off on the other hand, Movie Mode works normally. I guess I can toggle True Tone off at the same time I turn Movie Mode on, but I quite like the effect of True Tone overall, and it doesn't currently seem to cause issues with Flux otherwise.

]]>https://forum.justgetflux.com/post/22446https://forum.justgetflux.com/post/22446Sat, 02 Nov 2019 03:47:43 GMT<![CDATA[Reply to MacOS Catalina Bug on Sat, 02 Nov 2019 03:11:13 GMT]]>@denschub said in MacOS Catalina Bug:

It appears that this is fixed in the current Catalina beta. Although there is now another issue (the mouse cursor is not affected by any color profile, what fun.) color profiles itself now stick, and flux is no longer having weird issues.

I am also seeing a blue cursor on 10.15.1.

]]>https://forum.justgetflux.com/post/22443https://forum.justgetflux.com/post/22443Sat, 02 Nov 2019 03:11:13 GMT<![CDATA[Reply to MacOS Catalina Bug on Thu, 31 Oct 2019 01:36:31 GMT]]>Update: Issue is no longer present on my end after latest Catalina update; 10.15.1

]]>https://forum.justgetflux.com/post/22432https://forum.justgetflux.com/post/22432Thu, 31 Oct 2019 01:36:31 GMT<![CDATA[Reply to MacOS Catalina Bug on Thu, 31 Oct 2019 00:29:39 GMT]]>It appears that this is fixed in the current Catalina beta. Although there is now another issue (the mouse cursor is not affected by any color profile, what fun.) color profiles itself now stick, and flux is no longer having weird issues.

]]>https://forum.justgetflux.com/post/22430https://forum.justgetflux.com/post/22430Thu, 31 Oct 2019 00:29:39 GMT<![CDATA[Reply to MacOS Catalina Bug on Wed, 30 Oct 2019 10:36:18 GMT]]>In case this helps anyone, I was having issues on a 2018 MBP w/ integrated graphics, however enabling True Tone seems to have fixed the issues I was having. I think I had to disable true tone in the last release, lol.

I also have night shift disabled.

]]>https://forum.justgetflux.com/post/22427https://forum.justgetflux.com/post/22427Wed, 30 Oct 2019 10:36:18 GMT<![CDATA[Reply to MacOS Catalina Bug on Wed, 30 Oct 2019 05:46:15 GMT]]>Truetone have been causing problems with flux for the last year, but after MacOS Catalina it is impossible, is flashing with every single white colour in the screen, this is the first time in 10 years that my only option is disabling flux

]]>https://forum.justgetflux.com/post/22424https://forum.justgetflux.com/post/22424Wed, 30 Oct 2019 05:46:15 GMT<![CDATA[Reply to MacOS Catalina Bug on Wed, 30 Oct 2019 01:17:44 GMT]]>I am also experienced this issue after upgrading to Catalina on my 2019 MBP (13 inch).

It appears to blink within Firefox only, although, the color/temp is messed up across all apps.

It's only being experienced when no external monitors are connected. Issue is not present with an external monitor connected.

@herf said in MacOS Catalina Bug:
Two things:

  1. How many of you have a dual-GPU mac, vs. integrated only?
  2. Does it help (in either case) to enable writeProfile using these instructions?
    https://justgetflux.com/news/2014/10/28/profile.html

defaults write org.herf.Flux writeProfile 1

If this is happening mostly on discrete GPU macs, it's possible that the new security parameters in Catalina are preventing f.lux from noticing it's a dual GPU machine (which I had not considered before).

  1. Integrated only
  2. This did not help, unfortunately.

If I can provide any additional information, please let me know.

]]>https://forum.justgetflux.com/post/22422https://forum.justgetflux.com/post/22422Wed, 30 Oct 2019 01:17:44 GMT<![CDATA[Reply to MacOS Catalina Bug on Sun, 27 Oct 2019 21:00:54 GMT]]>@_paul said in MacOS Catalina Bug:

And it's back again after installing the latest update. :-(

herf: Any way to get that feedback app without being a developer?

OK: Turns out this is really wierd. It's back to working again. I have not changed a thing, have not rebooted or something, it just works. The same as last time - Wait a few days, and it'll sort it out by itself. Guess I better not reboot anytime soon, haha.

]]>https://forum.justgetflux.com/post/22414https://forum.justgetflux.com/post/22414Sun, 27 Oct 2019 21:00:54 GMT<![CDATA[Reply to MacOS Catalina Bug on Sun, 27 Oct 2019 03:17:01 GMT]]>Two things:

  1. How many of you have a dual-GPU mac, vs. integrated only?
  2. Does it help (in either case) to enable writeProfile using these instructions?
    https://justgetflux.com/news/2014/10/28/profile.html

defaults write org.herf.Flux writeProfile 1

If this is happening mostly on discrete GPU macs, it's possible that the new security parameters in Catalina are preventing f.lux from noticing it's a dual GPU machine (which I had not considered before).

]]>https://forum.justgetflux.com/post/22410https://forum.justgetflux.com/post/22410Sun, 27 Oct 2019 03:17:01 GMT<![CDATA[Reply to MacOS Catalina Bug on Sun, 27 Oct 2019 01:57:26 GMT]]>I'm seeing this issue as well. In case it's helpful, here's a short (1 min.) video to give you an idea what's happening. As you can see onscreen in the video, both True Tone and automatic brightness are already disabled.

https://imgur.com/a/EMWNknw

]]>https://forum.justgetflux.com/post/22409https://forum.justgetflux.com/post/22409Sun, 27 Oct 2019 01:57:26 GMT<![CDATA[Reply to MacOS Catalina Bug on Wed, 23 Oct 2019 18:29:47 GMT]]>And it's back again after installing the latest update. :-(

herf: Any way to get that feedback app without being a developer?

]]>https://forum.justgetflux.com/post/22393https://forum.justgetflux.com/post/22393Wed, 23 Oct 2019 18:29:47 GMT<![CDATA[Reply to MacOS Catalina Bug on Wed, 23 Oct 2019 17:37:02 GMT]]>@bnodvin we do not have a workaround.

As above, anyone with "Feedback Assistant" please send a note to Apple for us?

]]>https://forum.justgetflux.com/post/22392https://forum.justgetflux.com/post/22392Wed, 23 Oct 2019 17:37:02 GMT<![CDATA[Reply to MacOS Catalina Bug on Wed, 23 Oct 2019 13:47:53 GMT]]>any update on whether this will be fixed?

]]>https://forum.justgetflux.com/post/22391https://forum.justgetflux.com/post/22391Wed, 23 Oct 2019 13:47:53 GMT<![CDATA[Reply to MacOS Catalina Bug on Wed, 16 Oct 2019 18:21:01 GMT]]>Have true tone disabled, have night shift disabled, and no external monitor. With flux running the screen flickers and changes color on a regular/random basis.

Have the issue with both stock and custom profiles. It's definitely a flux/catalina incompatibility. Now, on who's end I can't say :-).

]]>https://forum.justgetflux.com/post/22377https://forum.justgetflux.com/post/22377Wed, 16 Oct 2019 18:21:01 GMT<![CDATA[Reply to MacOS Catalina Bug on Tue, 15 Oct 2019 07:28:07 GMT]]>In case it helps this is happening on my macbook pro since installing Catalina. It also happens with another similar app called Iris.

]]>https://forum.justgetflux.com/post/22372https://forum.justgetflux.com/post/22372Tue, 15 Oct 2019 07:28:07 GMT<![CDATA[Reply to MacOS Catalina Bug on Mon, 14 Oct 2019 23:44:44 GMT]]>Same issue on MBP 15,4. Haven't yet noticed the problem on iMac 18,3 with additional external display.

For what it's worth, a system restart fixes this bug for me, at least until a subsequent sleep/wake cycle. (Merely restarting f.lux does not fix the bug, though obviously the flashing effect ceases when f.lux is disabled.)

]]>https://forum.justgetflux.com/post/22370https://forum.justgetflux.com/post/22370Mon, 14 Oct 2019 23:44:44 GMT<![CDATA[Reply to MacOS Catalina Bug on Sat, 12 Oct 2019 00:28:21 GMT]]>Just for the record, I highly doubt this issue is related to f.lux. As far as I can tell, f.lux is simply feeding a color profile to macOS, and there seems to be a general color profile issue going on in Catalina.

I have custom monitor calibration profiles (from a calibration device), and macOS randomly ignored the profile. As far as I can tell, most of the time, macOS decides to apply the color profile correctly for everything except for pure white. #fff is always rendered as #fff, even though the color profile might tint it differently. In f.lux, this is especially harsh since everything white will glow really bright next to the red'ish colors.

I have reported several issues in regards to color profiles in Catalina via the Feedback Assistant.

]]>https://forum.justgetflux.com/post/22358https://forum.justgetflux.com/post/22358Sat, 12 Oct 2019 00:28:21 GMT<![CDATA[Reply to MacOS Catalina Bug on Fri, 11 Oct 2019 20:44:21 GMT]]>For me it works when my external display is plugged in. As soon as I unplug it everything starts flickering and the color filter is only showing around the UI elements, on and off.

As other mentioned, True tone and auto brightness don't change a thing.

]]>https://forum.justgetflux.com/post/22357https://forum.justgetflux.com/post/22357Fri, 11 Oct 2019 20:44:21 GMT