MacOS Catalina Bug
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Yep, True Tone is disabled.
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Same issue here. Flux also causes OSX to prompt to grant screen recording permissions. I suspect the latter is just due to the API it uses, but perhaps failing to grant it is what's causing the problem?
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This should only be in the about box, which we use to estimate screen brightness. Could add a button you'd have to push if it's too alarming.
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F.lux didn't work for me either when I installed Catalina, but when I ticked "true tone" box it started working normally again.
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Anyone with "Feedback Assistant" please send a note to Apple for us?
Has to be done on a machine that's affected, and we haven't bought a new MBP yet. :)
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Just a small report from me - everything works now. I haven't changed anything nor updated something, yet it started to work normally again. Maybe this is only in the first few hours after upgrading?
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@_paul Okay so maybe this is a True tone conflict, it just takes some time to actually turn off?
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Still experiencing same problem, turning of True Tone/Auto Brightness didn't help
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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.
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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.
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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.)
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In case it helps this is happening on my macbook pro since installing Catalina. It also happens with another similar app called Iris.
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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 :-).
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any update on whether this will be fixed?
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@bnodvin we do not have a workaround.
As above, anyone with "Feedback Assistant" please send a note to Apple for us?
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And it's back again after installing the latest update. :-(
herf: Any way to get that feedback app without being a developer?
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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.
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Two things:
- How many of you have a dual-GPU mac, vs. integrated only?
- 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).
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@_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.
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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:- How many of you have a dual-GPU mac, vs. integrated only?
- 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).
- Integrated only
- This did not help, unfortunately.
If I can provide any additional information, please let me know.
