Re: [orca-list] Another potentially usefull note...

[Hobbs Timothy <timothyhobbs seznam cz>]

Another obvious note I forgot to add.

Closing and opening the laptop lid will also turn the screen back on!

More info is here: http://www.thinkwiki.org/wiki/Xorg_RandR_1.2#Output_port_names

> -------- PÅvodnà zprÃva --------
> Od:  timothyhobbs seznam cz
> PÅedmÄt: Re: [orca-list] Another potentially usefull note...
> Datum: 20110216T21:59:33+0000
> ------------------------------
> It is possible to turn off the screen of your laptop using the utility xrandr(and turn it back on again 
> (smileyface)).  There are several reasons you may wish to do this.  Obviously, it is usefull to a sighted 
> develper wishing to "experience" blindness for testing reasons.  But it may also be usefull to non sighted 
> persons.  It should improve the battery life of your laptop, which is an obvious plus, and it will prevent 
> sighted people from reading over your shoulder(a plus and a minus, they can't spy on you while you're 
> working, but it may be that it is harder for them to help you if you need sighted assistance).
>
> You need to know three terminal commands to preform this operation.
> xrandr -q
>  will tell you the name of your laptops screen(called an output).  For me this is
> LVDS1
> In the output of
> "xrandr -q" it's the word that comes before "connected" in the first line...
>
> the command:
> xset s activate ; xrandr --output LVDS1 --off
> will turn off your screen.  Don't forget to use the correct output in the place of
> LVDS1.  .  The first command will set your screen  saver on(thus turning off the backlight hoperfully). The 
> seccond will stop output to the dysplay thus freezing the dysplay with the backlight off.
>
> the command:
> xrandr --ouput LVDS1 --auto
> will turn the screen back on.
>
> Hope this helps.
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