(Solved) Mate: can't change desktop wallpaper since update

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(Solved) Mate: can't change desktop wallpaper since update

Postby zorzi » 2017-05-08 11:55

Hello,

I'm using Debian Stretch with the Mate desktop 1.16.

Since a morning update today, I stay stuck with the lightdm wallpaper on my desktop. Can't change wallpaper.

I suspect last updates of mate-panel (1.16.2-1) and mate-control-center (1.16.1-1).

Has anyone met the same problem ?
Last edited by zorzi on 2017-06-06 20:42, edited 1 time in total.
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Re: Stretch Mate: can't change desktop wallpaper since updat

Postby tommyp » 2017-05-08 19:55

Same problem here too. Just a black screen that I can't change.
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Re: Stretch Mate: can't change desktop wallpaper since updat

Postby zorzi » 2017-05-08 20:15

Thanks for your report. This is a liitle bit annoying.

I'd like to make a bug report but I don't know what is the guilty package.
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Re: Stretch Mate: can't change desktop wallpaper since updat

Postby tommyp » 2017-05-08 21:03

Ditto. Maybe a message to the Mate packaging team?
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Re: Stretch Mate: can't change desktop wallpaper since updat

Postby zorzi » 2017-05-08 21:24

Just wrote a message to the team. Hope it will help.
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Re: Stretch Mate: can't change desktop wallpaper since updat

Postby ikarus » 2017-05-09 07:20

Same Problem for me....
Can't change the background after update.
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Re: Stretch Mate: can't change desktop wallpaper since updat

Postby MikeEcho » 2017-05-10 18:53

Same problem here.

Can't change this (ugly ?) background. Well, that is not exactly true ...

1/ If I select a background on the "Background" so-called tab of "Appearance Preferences" : jack shit happens.
2/ But if I disable and then re-enable in a row "Show desktop icons" in "MATE Tweak", the previously selected background appears.
3/ Though, if I reset my computer, that ugly standard background re-appears like I never changed it.

A complete re-install didn't manage do deal with this bug ...
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Re: Stretch Mate: can't change desktop wallpaper since updat

Postby gradinaruvasile » 2017-05-13 04:44

Same here. I have 2 monitors and on the first one i have the default wallpaper, black on the second.
But i cannot change them. Tried directly from dconf-editor but nothing.
It seems certain settings from the mate-settings-daemon are disregarded. Theme, fonts seem to change but those too were reset after restarting X.
I was under the impression squeeze was under freeze?

BTW there is a bug for that:

https://bugs.debian.org/cgi-bin/bugrepo ... bug=862355
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Re: Stretch Mate: can't change desktop wallpaper since updat

Postby furquan » 2017-05-13 07:33

zorzi wrote:Hello,

I'm using Debian Stretch with the Mate desktop 1.16.

Since a morning update today, I stay stuck with the lightdm wallpaper on my desktop.


What happens when you change LightDM's wallpaper itself (https://wiki.debian.org/LightDM#Change_ ... background)?

You can try changing the wallpaper from the command-line to see if works:
Code: Select all
dconf write /org/mate/desktop/background/picture-filename "[WALLPAPER-PATH]"


If the above does work then LightDM may be at fault; in that case you might want to switch to another DM (like GDM or LXDM) for the meantime.
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Re: Stretch Mate: can't change desktop wallpaper since updat

Postby gradinaruvasile » 2017-05-13 08:45

It does not work i tried it (the dconf one). Did not try update-alternatives yet though (btw there is a very good GUI for alternatives named galternatives).
Since the problem appeared after mate-settings-daemon and other mate components upgrade i suppose some mate component(s) should be the culprit.
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Re: Stretch Mate: can't change desktop wallpaper since updat

Postby zorzi » 2017-05-13 09:38

Well, the bug has been reported here:

https://bugs.debian.org/cgi-bin/bugrepo ... bug=862355
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Re: Stretch Mate: can't change desktop wallpaper since updat

Postby furquan » 2017-05-13 09:54

gradinaruvasile wrote:It does not work i tried it (the dconf one). Did not try update-alternatives yet though (btw there is a very good GUI for alternatives named galternatives).
Since the problem appeared after mate-settings-daemon and other mate components upgrade i suppose some mate component(s) should be the culprit.


Did you try configuring LightDM? It is a workaround (and a bad one at that) but you should be able to change the wallpaper this way since you say that you're stuck on the LightDM wallpaper.

The exact procedure for changing the wallpaper depends on the greeter in question but if MATE uses the GTK3-greeter then you should be able to change its wallpaper after installing the following tool:
Code: Select all
sudo apt install lightdm-gtk-greeter-settings
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Re: Stretch Mate: can't change desktop wallpaper since updat

Postby furquan » 2017-05-13 09:56

Another idea would be to use feh. I'm not sure it would work (since you've already tried the dconf solution) but I've tried it when Xfce became unresponsive and couldn't change the wallpaper and it did work. Install it using the following command:
Code: Select all
sudo apt install feh

The manpage for feh defines it as a mode-based image viewer but it is much more than that. It can even change the background image. Just type:
Code: Select all
feh --bg-[center/scale/fill/whatever] [IMAGE]

and if everything goes correctly, the wallpaper should change. If it doesn't then oh well, you may decide to switch to another desktop-environment (or better, a bare-minimum wm) until this gets resolved.

You can also try killing the file-manager (since it controls the desktop) and then restarting it. This used to fix desktop-related problems in GNOME-related desktops because sometimes Nautilus would hang making the desktop unresponsive.

I hope this helps.
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Re: Stretch Mate: can't change desktop wallpaper since updat

Postby gradinaruvasile » 2017-05-13 14:34

I logged out and in a few times, restarted caja to no avail.
Will try feh, although i am not sure it will work. On this desktop i did not logged out/in yet and feh works too (but the standard right click desktop change too), but i am curious after reloading X....
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Re: Stretch Mate: can't change desktop wallpaper since updat

Postby gradinaruvasile » 2017-05-15 09:29

So i tested feh and it is working...

It seems it cannot use svgs only png/jpg (probably others, not tried).
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