value displayed when resetting a key doesn't match the real one

[Phil Housley]

Binary package hint: gnome-session

The system default gconf value for /apps/gnome-session/options/splash_image is not the ubuntu customised one, it's "splash/gnome-splash.png". As such, after changing the splash screen it's tricky to get back to the original again - you can't just unset the key.

The correct default looks to be "splash/ubuntu-splash.png".

[Simon Law (sfllaw)]

Hi Phil,

I can't reproduce this. Can you tell me what:
$ grep -r splash.png /etc/gconf
produces?

Thanks.

[Phil Housley (undeconstructed)]

Nothing at all it seems.

However:

$ grep -r splash.png /usr/share/gconf/
/usr/share/gconf/schemas/gnome-session.schemas: <default>splash/gnome-splash.png</default>
/usr/share/gconf/defaults/10_gnome-session:/apps/gnome-session/options/splash_image splash/ubuntu-splash.png

[Sebastien Bacher (seb128)]

The revelant place is probably /usr/share/gconf if you want to look for the default. Note than we don't modify the upstream schemas but Debian,Ubuntu packages can set a default that is registered during the installation, it makes easy for CDD distributions to change a key by example. The gnome-session one is /usr/share/gconf/defaults/10_gnome-session and it lists "/apps/gnome-session/options/splash_image splash/ubuntu-splash.png", so if there is an issue that's likely to be a gconf distro specifc one rather that due to gnome-session

[Sebastien Bacher (seb128)]

does reinstalling gnome-session fix your problem?

[Phil Housley (undeconstructed)]

No, no change...

[Sebastien Bacher (seb128)]

is your system a stock Ubuntu installation or an upgrade for debian? Did you change /etc/gconf/2/path? What does that file contain (could you copy that to a comment)?

Does "sudo update-gconf-defaults" run fine? Do you have a /var/lib/gconf/debian.defaults/%gconf-tree.xml? What does it contain?

[Phil Housley (undeconstructed)]

I'm starting to think this must be a freak thing, 'cause I still see it after upgrading to breezy, with almost all the packages replace; so, if you want to drop this, I don't mind.

For the sake of completeness though:
1. It's an ubuntu install, probably started as dapper.
2. I don't think I have ever knowingly changed /etc/gconf/2/path, the non-comments in it are:
xml:readonly:/etc/gconf/gconf.xml.mandatory
include /etc/gconf/2/local-mandatory.path
include "$(HOME)/.gconf.path.mandatory"
include $(ENV_MANDATORY_PATH)
include "$(HOME)/.gconf.path"
xml:readwrite:$(HOME)/.gconf
include "$(HOME)/.gconf.path.defaults"
include $(ENV_DEFAULTS_PATH)
include /etc/gconf/2/local-defaults.path
xml:readonly:/etc/gconf/gconf.xml.defaults
xml:readonly:/var/lib/gconf/debian.defaults
xml:readonly:/var/lib/gconf/defaults
3. Looks like it runs:
phil@explicit:~$ sudo update-gconf-defaults
Password:
phil@explicit:~$ echo $?
0
4. The only splash reference in my /var/lib/gconf/debian.defaults/%gconf-tree.xml, is:
<dir name="gnome-session">
        <dir name="options">
                <entry name="splash_image" mtime="1167835470" type="string">
                        <stringvalue>splash/ubuntu-splash.png</stringvalue>
                </entry>
        </dir>
</dir>

I'll try and grep through the gconf settings files to see if I can find anything, but as I said before, if this only affects me, I have no problem with you marking it notabug or something.

[Sebastien Bacher (seb128)]

Do you have a /usr/share/pixmaps/splash/ubuntu-splash.png file? What does "gconftool -g /apps/gnome-session/options/splash_image" print?

[Phil Housley (undeconstructed)]

$ file /usr/share/pixmaps/splash/ubuntu-splash.png
/usr/share/pixmaps/splash/ubuntu-splash.png: symbolic link to `ubuntu-slick.png'

I've actually just reinstalled from scratch (a herd 2 cd image.) I'm not sure the situation is exactly as it was, but it still isn't right.

It seems that the only way to make the problem happen is specifically using the gconf-editor. If I use that to set the key to, for example, "error", then:

$ gconftool -g /apps/gnome-session/options/splash_image
error
$ gconftool -u /apps/gnome-session/options/splash_image
$ gconftool -g /apps/gnome-session/options/splash_image
splash/ubuntu-splash.png

And everything works correctly. If I then open gconf-editor, navigate to the key, and select "unset" from the context menu, the screen will then show "splash/gnome-splash.png". However:

$ gconftool -g /apps/gnome-session/options/splash_image
splash/ubuntu-splash.png

Starting gconf-editor again, the key is now shown as "splash/ubuntu-splash.png" again, so it looks like the context menu option doesn't actually set the key wrong, it just displays the wrong text.

I guess this is actually just a gconf-editor bug?

[Sebastien Bacher (seb128)]

might be a problem with gconf-editor, did you open the bug because gconf-editor was not displayed the expected value or because you had a wrong image on login?

[Phil Housley (undeconstructed)]

To be honest, I can't remember; it was very long time ago... Regardless, since reinstalling the only problem seems to be with gconf-editor, so that's the only part that's still current now.

[Joel Bryan Juliano (joelbryan)]

I've checked the gnome-session 2.17.90.1 source and looked for a reference in patches, postinst, and rules for ubuntu-splash.png but found none, even in libgnome 2.17.90, the debian/changelog doesn't indicate the changes on how the splash screen image is set, I'm curious, how does ubuntu apply the gconf settings for the splash screen?

[Joel Bryan Juliano (joelbryan)]

I've found some reference on how ubuntu-splash.png is set, I think this is during hoary, http://www.google.com/codesearch?hl=en&q=+ubuntu-splash.png+show:h1D1iStZHqQ:avSeUxXdgkU:pJYpjWpxz2Y&sa=N&cd=1&ct=rc&cs_p=http://archive.ubuntu.com/ubuntu/pool/main/g/gnome-session/gnome-session_2.10.0.orig.tar.gz&cs_f=gnome-session-2.10.0.orig/debian/patches/07_ubuntu-theme.diff#a0
it patches the gnome-session.schemas.in.in file to set the splash,
I wonder what happened to this method?

[Sebastien Bacher (seb128)]

Closing the gnome-session task then and opening a gconf-editor one. On feisty the Ubuntu splash is defined by /usr/share/gconf/defaults/16_ubuntu-artwork which is shipped by the ubuntu-artwork package

[Sebastien Bacher (seb128)]

Updated the current task instead

[Sebastien Bacher (seb128)]

I've sent the bug upstream, http://bugzilla.gnome.org/show_bug.cgi?id=441178