I have TFT monitor with 1280×1024 resolution and TV connected in nvidia twin view configuration with TV’s resolution of 800×600. Whenever I want to set up a desktop wallpaper on Gnome, I must adjust it, because Gnome “sees” my desktop as one large 2080×1024 desktop. So, I must manually open wallpaper in Gimp and create another picture that contains two wallpaper next to each other, one with 1280×1024 dimension, and another one, with 800×600 dimensions right of the first one. So, I decided that that’s enough. So I utilized imagemagick to accomplish this and put convinient function in my .bashrc file. Here it is:
make_wallpaper(){ convert -background white "$1" -resize 1280x1024 \( "$1" -resize 800x600 \) +append "$2"; }
Of course, background color isn’t neccesary since it is not visible, I just put it as a reminder. All I have to do now is to call:
make_wallpaper original.png my.png
Sweet, ain’t it;)