Bug 459481

Summary:	Redshift (night colour) is not activated on all screens at startup
Product:	[Unmaintained] plasma-redshift-control	Reporter:	Ilario Gottardello <ilario.gottardello>
Component:	General	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	REPORTED ---
Severity:	normal
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Ilario Gottardello 2022-09-21 08:55:26 UTC

SUMMARY
In my dual gpu system (integrated intel / discrete nvidia) if I turn on the computer at evening, redshift is activated only on the monitor attached to the intel gpu. The two monitors attached to the nvidia card displays normal colours. To turn them on, I have to manually go to settings, disable redshift and then enabled it; that will turn it on on every monitor.

STEPS TO REPRODUCE
1. Turn on pc at night and log into plasma
2. Observe that redshift is enabled only on the intel-attahed monitor
3. Go to settings, disable it and then enabled it, to turn it on on every monitor.

OBSERVED RESULT
Redshift is enabled only on one monitor, which is the principal monitor per BIOS settings

EXPECTED RESULT
Redshift should be automatically enabled on all monitors

SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.25.5
KDE Frameworks Version: 5.98.0
Qt Version: 5.15.6
Graphics Platform: X11

ADDITIONAL INFORMATION
nvidia card use proprietary drivers. This bug is present since at least one year or two