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"In het verleden behaalde resultaten bieden geen garanties voor de toekomst"
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These are the ramblings of Matthijs Kooijman, concerning the software he hacks on, hobbies he has and occasionally his personal life.

Most content on this site is licensed under the WTFPL, version 2 (details).

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My old blog (pre-2006) is also still available.

See also my Mastodon page.

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Changing the gdm3 (login screen) background in Gnome3

Gnome

I upgraded to Gnome3 this week, and after half a day of debugging I got my (quite non-standard) setup working completely again. One of the things that got broken was my custom wallpaper on the gdm3 login screen. This used to be configured in /etc/gdm3/greeter.gconf.defaults, but apparently Gnome3 replaced gconf by this new "gsettings" thingy.

Anyway, to change the desktop background in gdm, add the following lines to /etc/gdm3/greeter.gsettings:

[org.gnome.desktop.background]
picture-uri='file:///etc/gdm3/thinkpad.jpg'

For reference, I also found some other method, which looks a lot more complicated. I suspect it also doesn't work in Debian, which runs gdm as root, not as a separate "gdm" user. Systems that do use such a user might need the more complicated method, I guess (which probably ends up storing the settings somewhere in the homedir of the gdm user...).

 
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