Re: [gentoo-user] Re: VGA output?

[Valmor de Almeida <val.gentoo@gmail.com>]

Grant wrote:
...[snip]...
> 
> Thanks everyone.  Do these apps allow you to connect and disconnect a
> monitor without restarting X?  I'm not sure how that would work
> because my laptop screen's aspect ratio is resized based on that of
> the monitor.
> 
> - Grant
> 
> 

Yes. Typically I have aliased commands for xrandr. If I am using the VGA
and I want to undock the laptop and use its LCD, I run my turnoffvga alias:

 xrandr --output VGA --off

undock the laptop and restart windowmaker (not the X server); just a
simple ALT+R key stroke for wm; this does not mess up running X apps. I
restart the window manager so my desktop background are resized to the
size of the laptop LCD monitor. I use xrandr extensively to reset, turn
on and off VGA/LCD whether I have the laptop docked or not. All without
restarting the X server; it also works with digital projectors.

For resetting the VGA:

xrandr --output LVDS1 --auto --pos 0x0

or for a resetting both monitors (bash function)

EXTERNAL_OUTPUT="VGA"
INTERNAL_OUTPUT="LVDS1"
INTERNAL_LOCATION="--below $EXTERNAL_OUTPUT"

xrandr |grep $EXTERNAL_OUTPUT | grep " connected "
if [ $? -eq 0 ]; then
    xrandr --output $EXTERNAL_OUTPUT --auto
    xrandr --output $INTERNAL_OUTPUT --auto
    xrandr --output $INTERNAL_OUTPUT $INTERNAL_LOCATION
else
    xrandr --output $EXTERNAL_OUTPUT --off
    xrandr --output $INTERNAL_OUTPUT --auto
fi


--
Valmor