Regolith3: Regolith-Settings->Displays does not show all screens

[gogsbread]

• [x] I've run a search on the existing bug reports to make sure I'm not filing a duplicate (you can use the search box at the top left corner)
• [x] I've read the Regolith documentation and didn't find any relevant topic
• [ ] I tried asking on Slack (especially for configuration related issues)

Describe the bug Regolith Settings does not show all the displays after choosing a monitor with "Single Display" option.

To Reproduce

• Have multiple monitors connected
• Goto "Regolith Settings" (mod+c) and choose "Display". You should see all the connected monitors
• Choose "Single Display" for an external monitor and hit apply
• After a refresh, the other display will disappear.
• To bring back the lost display, you'd have to enable both monitors using something like sway-regolith output eDP-1 enable && <other enable> and then all the monitors will be shown.

Expected behavior

• Both displays should be shown so that the user can switch to a different display as desired.
• This is the behavior in mutter

Screenshots working not-working

Configuration file(s) Monitoring the d-bus, dbus-monitor --session "sender='org.gnome.Mutter.DisplayConfig'", it shows that in a mutter session, the dbus response has the "built-in Display" whereas the one in Regolith session does not. regolith-dbus.txt mutter-dbus.txt

Additional context I have a feeling something is trying to apply a different profile and hence it is missing this information. It is weird because no matter what "Single Display" I choose, laptop built-in or external monitor, it always seems to pivot to the external monitor.

[gogsbread]

Ok monitoring journalctl -f I see a log line Oct 21 23:26:08 <user> regolith-wayland.desktop[44603]: no profile matched.

So, somebody is trying to load some profile and they are failing. I'll try to debug this more when I have time later

[kgilmer]

CC @SoumyaRanjanPatnaik .. From the poster's notes, this is a sway session. is this from the kanshi dependency?

[SoumyaRanjanPatnaik]

I think this is happening because regolith-displayd only returns the list of active mobitors via the dbus interface. I'll try to come up with a fix for this. I'll probably have to figure out how mutter reports monitors that are connected but disable

[SoumyaRanjanPatnaik]

https://github.com/regolith-linux/regolith-displayd/commit/c4ebc881bd58a2ed4cbe2717e29d9430f117db4b and https://github.com/regolith-linux/regolith-displayd/commit/aa3d572a3cf96f42a08bb68ac37574f4de748ba9 should fix this. The changes should ideally be available in the next beta of Regolith 3.1