{"id":190,"date":"2015-07-10T23:03:34","date_gmt":"2015-07-10T22:03:34","guid":{"rendered":"http:\/\/blogs.gentoo.org\/johu\/?p=190"},"modified":"2023-07-31T08:10:49","modified_gmt":"2023-07-31T07:10:49","slug":"plasma-5-and-kdbus-testing","status":"publish","type":"post","link":"https:\/\/blogs.gentoo.org\/johu\/2015\/07\/10\/plasma-5-and-kdbus-testing\/","title":{"rendered":"Plasma 5 and kdbus testing"},"content":{"rendered":"

Thanks to Mike Pagano who enabled kdbus support in Gentoo kernel sources<\/a> almost 2 weeks ago. Which gives us the choice to test it. As described in Mikes blog post you will need to enable the use flags kdbus and experimental on sys-kernel\/gentoo-sources and kdbus on sys-apps\/systemd.
\n
\nroot # echo \"sys-kernel\/gentoo-sources kdbus experimental\" >> \/etc\/portage\/package.use\/kdbus
\n<\/code><\/p>\n

If you are running >=sys-apps\/systemd-221 kdbus is already enabled by default otherwise you have to enable it.
\n
\nroot # echo \"sys-apps\/systemd kdbus\" >> \/etc\/portage\/package.use\/kdbus
\n<\/code><\/p>\n

Any packages affected by the change need to be rebuilt.
\n
\nroot # emerge -avuND @world
\n<\/code><\/p>\n

Enable kdbus option in kernel.
\n
\nGeneral setup --->
\n<*> kdbus interprocess communication
\n<\/code><\/p>\n

Build the kernel, install it and reboot. Now we can check if kdbus is enabled properly. systemd should automatically mask dbus.service and start systemd-bus-proxyd.service instead (Thanks to eliasp for the info).
\n
\nroot # systemctl status dbus
\n\u25cf dbus.service
\nLoaded: masked (\/dev\/null)
\nActive: inactive (dead)<\/code>
\n<\/code>
\n
\nroot # systemctl status systemd-bus-proxyd
\n\u25cf systemd-bus-proxyd.service - Legacy D-Bus Protocol Compatibility Daemon
\n Loaded: loaded (\/usr\/lib64\/systemd\/system\/systemd-bus-proxyd.service; static; vendor preset: enabled)
\n Active: active (running) since Fr 2015-07-10 22:42:16 CEST; 16min ago
\n Main PID: 317 (systemd-bus-pro)
\n CGroup: \/system.slice\/systemd-bus-proxyd.service
\n \u2514\u2500317 \/usr\/lib\/systemd\/systemd-bus-proxyd --address=kernel:path=\/sys\/fs\/kdbus\/0-system\/bus
\n<\/code><\/p>\n

Plasma 5 starts fine here using sddm as login manager. On Plasma 4 you may be interested in Bug #553460<\/a>.<\/p>\n

Looking forward when Plasma 5 will get user session support<\/a>.<\/p>\n

Have fun!<\/p>\n

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