i'm using lxde desktop, Fedora 20, and i symlinked a shell script to desktop to set resolution and dpi when i use vnc.

but everytime i click on the script, it ask me to execute or open it, how to make it always "execute" ?

enter image description here

and btw, why can't in run

xrandr -s 1280x800 --dpi 97

but have to run

xrandr -s 1280x800 && xrandr --dpi 97

can't set resolution and dpi at the same time ?

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