Gamma control is ineffective under cage

[project-repo]

Hi,
I've been trying to debug this for some time now and haven't come up with much yet, so I thought I'd report this here seeing as it is a common bug between cage and cagebreak:
Some time back, the gamma control protocol was implemented for cage which is why I expected that gammastep -o -O 1000 would allow me to set the color temperature. However, for some reason which is unknown to me it seems that this command produces no effect whatsoever in either cage or cagebreak. Running it under sway does produce the desired fact and adding wlr_gamma_control_manager_v1_create to tinywl allows one to set the gamma values there too. That's pretty much all I've been able to figure out about this bug exept that it is probably not a rendering bug. Do you have any idea what might be causing this behaviour?
cheers,
project-repo

[project-repo]

OK, so I was able to figure out what the problem was and as it seems, this is a wlroots bug: Setting the redshift is broken only when scanning out a fullscreen view. The reason I was first unable to reproduce this in sway was that it does not display windows fullscreen by default meaning that it was not scanning out the views while cage and cagebreak were.
I will report this to the wlroots developers, feel free to close this issue if you like.
cheers,
project-repo

[project-repo]

See swaywm/wlroots#2280

[Hjdskes]

Thanks. Closing this as it seems to be fixed in wlroots too :)