I want to reduce the blue light of my screen, I thought it would be easy, but I have trouble doing this :
blue light
most internet answers are for ubuntu (not xubuntu) and propose this solution : settings > display > blue light, but I don't find it under my release of xubuntu 22.04.1 LTS (Jammy Jellyfish)
flux
then i tried to use flux, but i couldn't install it, https://github.com/xflux-gui/fluxgui, ppa didn't work and the workaround was not clear, maybe i misunderstood something, but it's using redshift anyway
redshift
so I tried to use redshift, https://github.com/jonls/redshift, but unfortunately i couldn't :
- first i got geoclue error https://github.com/jonls/redshift/issues/318
- then I tried a manual configuration with a config file, but I couldn't get it work, redshift gives me an
fopen: permission denied
: following instruction of the readme, I installed the config file in ~/.config/redshift/redshift.conf
, I had to create ~/.config/redshift/
first, and I changed the permissions to try to solve the issue :
~/.config/
was rwxr-xr-x
~/.config/redshift/
was rwxrwxr-x
~/.config/redshift/redshift.conf
was rw-rw-r--
- i made all of them rwxrwxr-x, but without luck
- and finally i could launch it with this command but then I cannot control the time :
redshift -l LAT:LONG
so it's not what I want
do you have a solution to reduce the blue light in xubuntu 22.04 ?