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1

Change the wallpaper from System Setings, it will automatically stop.


1

If your purpose is to display the current earth view, you might make use of xplanet, which gets a more frequently updated image. Install xplanet with - sudo apt-get install xplanet Then, in your script replace the image source with the xplanet output as below. xplanet -body earth -num_times 1 -projection mercator -output $wallpaper_name -geometry ...


1

Default plasma wallpaper The default plasma wallpaper is set in the default desktop theme: /usr/share/kde4/apps/desktoptheme/default/ There is the metadata.desktop. It has wallpaper section. With the Kubuntu 14.04 / KDE 4.13: [Wallpaper] defaultWallpaperTheme=Elarun defaultFileSuffix=.png defaultWidth=2560 defaultHeight=1600 The 'Elarun' is described in ...


1

A line userswallpapers=path/to/wallpaper in the file ~/.kde/share/config/plasma-desktop-appletsrc is what you're looking for. Btw, almost everything you wanted you may easy find in the .kde directory with grep -rniI pattern, where -r stands for recursive, -n stands for show me the line number where the pattern found, -i — ignore case, and the -I — ignore ...


0

This can be done easily with Ubuntu Tweak. Just click Tweaks, Login Settings, and then "click the button to change the login screen background". If you want your session wallpaper to be used, there's a one click button for that, "set the same background as the current desktop background"


1

The request was for the resolution. That is given by xdpyinfo | grep resolution


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This is the default wallpaper of ubuntu 14.10.You can find it here.


1

I recommend using google image search. Go to google.com - Switch to Images - Then on the top right corner go to Advanced search mode. There you can choose from usage rights the one you want: Google Advanced search The same can be done with Ecosia search : Ecosia search (On the left bottom go to Labelled for reuse)


15

Take from this answer: xdpyinfo | grep dimensions Or to get just the resolution: xdpyinfo | awk '/dimensions/{print $2}' OR xdpyinfo | grep -oP 'dimensions:\s+\K\S+'


16

I would just use xrandr: $ xrandr Screen 0: minimum 320 x 200, current 3520 x 1200, maximum 32767 x 32767 LVDS1 connected 1600x900+1920+0 (normal left inverted right x axis y axis) 310mm x 174mm 1600x900 60.0*+ 1440x900 59.9 1360x768 59.8 60.0 1152x864 60.0 1024x768 60.0 800x600 60.3 ...


1

Image resolution - It will look best when the image matches your monitor resolution. Image colour - On old CRT monitors dark wallpapers use less energy, on LCD monitors light ones are less energy-consuming. Image size - The lower the image size, the faster the machine works. (But, there will not be so much difference unless you are using very old computer) ...



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