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Questions tagged [f.lux]

23 questions
33
votes
3 answers

How to use "xrandr --gamma" for Gnome "Night Light"-like usage?

Background: More red / Less blue at night To save the eyes at night, adding more red and/or subtracting blue, is becoming popular in Windows 10 (blue-light filter) and Linux; Gnome Desktop (Night Light) and Ubuntu Unity Desktop with add-ons such as…
WinEunuuchs2Unix
  • 105,762
13
votes
7 answers

Redshift/F.lux not working on Ubuntu 16.04

I have installed both Redshift and f.lux on my Ubuntu 16.04 machine to try to change the color temperature of my screen. I can open the apps, but neither of them has an effect on the screen color tone. On F.lux, when I try to preview the color…
Sergei Wallace
  • 401
6
votes
2 answers

Why does f.lux use 100% of a cpu core?

I installed f.lux on Ubuntu 14.04. The GUI doesn't work properly but I am able to access settings through the xterminal. While looking in the system monitor, it can be seen that a process called "xflux" is using 100% of one one the cpu cores. Is…
Owen Roe
  • 61
5
votes
2 answers

Permanent f.lux

I want F.lux enabled at all times, not only during the night. I also installed Redshift, it has the same limitations of checking my latitude. The Windows version of F.lux has always-on functionality, no idea why Linux doesn't. How do I do this?…
Jay
  • 51
  • 4
5
votes
4 answers

Using terminal to have xflux at a certain temperature at all times

I'm trying to configure my xflux to have the screen's temperature at 3200 at all times, however it only seems to configure it for night time. Here's the command I put in: ./xflux -l 52.5, -g -1.886 -k 3200 This only configures it for night-time, is…
YojimboSonny
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4
votes
2 answers

Alternatives for f.lux/redshift

Neither f.lux nor redshift works on my Ubuntu. I've installed f.lux (latest version 2010 :/), but it didn't work for some reason. The same goes for redshift; after launching it outputs Unknown location providergeoclue'.` I've tried many solutions…
sympi
  • 41
4
votes
2 answers

Redshift/F.lux not working on Ubuntu 16.04 with Intel HD Graphics

I'm aware of the question asked and answered about Redshift/F.lux but it doesn't seem to work for me, as I have Intel HD Graphics. I can open F.lux and preview but for some reason it has no effect on the screen. I tried it with Redshift and the same…
probablynotdev
  • 41
4
votes
1 answer

f.lux doen't start after booting

I've installed f.lux some time ago and also had it in my startup apps. But now, all of a sudden, it doesn't startup automaticall anymore. I have the command "fluxgui" in my startup applications. If I open it from console, it works without a problem.…
NewtoUbuntu
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4
votes
1 answer

F.lux or redshift and lubuntu issues

I'm a noob. Putting this out there right away. Using Lubuntu 19 I want a blue light filter. So I've installed f.lux, but when I adjusted the brightness on my laptop it toggles or flashes between the screen without f.lux and then back to f.lux as I…
Vinnie Ross
  • 101
3
votes
2 answers

Can't remove flux

I'm trying to reinstall flux and am having a hard time. sudo apt-get remove fluxgui returns E: Unable to locate package fluxgui, which makes me think it's already uninstalled. But in the software center, I see: If I click "Remove", the machine…
snapcrack
  • 317
3
votes
0 answers

f.lux stopped working kernel upgrade

I recently upgraded to the 4.4.0-53-generic kernel, and now f.lux is not working. I have it launching on startup, but now it simply is not changing the temperature color settings: Here is the output of launching fluxgui…
Kalamalka Kid
  • 3,304
3
votes
3 answers

Redshift and flux f.lux both installed but no visible effect from either

I run a dual boot of Ubuntu and Windows. Windows running f.lux has a noticeable effect. I have redshift and flux installed on Ubuntu but neither has an visible effect. I'm looking for help in debugging this or any alternative software to make the…
user1821961
  • 133
2
votes
0 answers

How to override Flux color temperature settings in Ubuntu 16.04?

I am using Ubuntu 16.04 LTS. Flux runs fine during night time. But I would like to reduce the color temperature of the screen during daytime too to reduce the strain on my eyes. However Flux indicator applet does not allow to manually set the color…
RodrikTheReader
  • 121
1
vote
1 answer

Removing an app completely not installed by apt-get

I have installed an app by going on a bit of a rampage trying different things, and in the end I'm not completely sure what I did. But I do know that something is installed and I want to remove it. The app is fluxgui. I installed it on 16.04 ubuntu…
simernes
  • 507
1
vote
0 answers

f.lux lost effectiveness after setting temperature on Ubuntu 14.04 LTS?

I installed f.lux via apt-get and replaced xflux in /usr/bin with the daemon for X-window (32-bit build with support for multiple monitors). I launched it, set my location and chose my favourite colour temperature (4200 K) and clicked Preview. So…
LittleLittleQ
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