Panning / Creating a bigger virtual screen.
dgriffith at internode.on.net
Wed Sep 10 01:07:40 PDT 2008
I'm currently working on a small panning utility to bring back panning
to my eeePC.
It has an 800x400 LCD, thus I would *really* like to pan the screen.
400px is not a great amount of usable real estate once menus and
statusbars and what-not are on-screen.
With my meagre X abilites, I have crufted up a small program that
queries where the pointer is, and shifts the viewport about with
XF86VidModeSetViewport to keep the pointer on screen. Seems to work well
Except for a niggly problem. I can't set a virtual desktop size bigger
than my current 800x400 display. I have "Virtual 1680 1680" on my
xorg.conf, but I can't seem to figure out how to enforce that as a root
window size regardless of the actual size of my display. On startup, X
discards any modes that are bigger than 800x400 as they exceed the panel
dimensions, so there's nothing bigger than 800x400 in xrandr's available
At present, I have to create a new higher resolution modeline with
xrandr on my (unplugged) VGA output, then activate the VGA output. This
then startles X into resizing the desktop to fit the higher resolution,
then I have a higher resolution virtual desktop that I can pan around
with my laptop's internal 800x400 display.
Surely there's a better way than this? I'm hoping I've missed something
completely obvious to the seasoned X veteran :-)
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