Receiving SMS plays a long tune on my #Librem5. For a few persons I'd like to have this tune played also if they send me a message using #matrix.

A problem is that the #fractal flatpak does not use #feedbackd yet to signal new messages and on #PureOS #Byzantium there's no way to define different sounds for different notification events.

So I started testing a small script to read notifications and trigger feedback for messages coming from an account containing some string:

#!/usr/bin/python3

import gi
import time
gi.require_version('Lfb', '0.0')
from gi.repository import Lfb
from gi.repository import GLib
import dbus
from dbus.mainloop.glib import DBusGMainLoop

def print_notification(bus, message):
    keys = ["app_name", "replaces_id", "app_icon", "summary",
          "body", "actions", "hints", "expire_timeout"]
    args = message.get_args_list()
    if len(args) == 8:
        notification = dict([(keys[i], args[i]) for i in range(8)])
        if "account_i_want_to_be_notified_for_like_it_would_be_sms" in notification["summary"]:
            print( notification["summary"], ': ', notification["body"] )
            event.trigger_feedback()

Lfb.init('org.sigxcpu.lfbexample')
event = Lfb.Event.new('message-new-sms')
loop = DBusGMainLoop(set_as_default=True)
session_bus = dbus.SessionBus()
session_bus.add_match_string("type='method_call',interface='org.freedesktop.Notifications',member='Notify',eavesdrop=true")
session_bus.add_message_filter(print_notification)

GLib.MainLoop().run()

After playing around with phoc/phosh on my notebook I found that the media-keys in gnome didn't work anymore after closing #phoc and #phosh.

Later on I wasn't able to suspend my #Librem14 running #PureOS #Byzantium with #Gnome (3.38.5) on #Wayland by hitting Fn-Esc.

It turned out that the gsd-media-keys¹ daemon got confused over phosh grabbing and releasing the controls.

Stopping the daemon via killall gsd-media-keys and re-starting it using systemctl start org.gnome.SettingsDaemon.MediaKeys.target or executing /usr/libexec/gsd-media-keys &, disown %1 restored the functioning of the hotkeys.

Didn't file an issue, yet, because I don't know if this is reproducible in newer versions of Gnome. @agx@social.librem.one, maybe it'd be nice to add some information to the article in case people wonder why there hotkeys do not work after following those instructions?

¹this is the only documentation I found describing in short what the daemon does - any hints to newer official sources are welcome