[Novalug] question on xrandr

pereira ninorpereira@gmail.com
Wed Feb 25 19:32:49 EST 2015


Aaron,

I used to do it that way, but the question is really:
why doesn't rebooting the system pick up the order,
the orientation, etc., that I ask for with xrandr?
(actually, come to check this, I call Arandr: maybe
that's the problem; xrandr is the command line
application that I used to use).

Initially the monitors appear on top of each other,
and one isn't properly recognized (or, gets its proper
choice overruled because both have to be the same).
Otherwise swapping the cables is indeed the right thing
to do; I may still do that....

Thank you,

Nino


On 02/25/2015 07:13 PM, Aaron M. Ucko wrote:
> pereira via Novalug <novalug@firemountain.net> writes:
>
>> xrandr --output DVI-I-1 --mode 1680x1050 --pos 1920x0 --rotate normal
>>              --output HDMI-1 --off
>>              --output DVI-I-2 --mode 1920x1200 --pos 0x0 --rotate normal
> You could try establishing these settings via /etc/X11/xorg.conf, as
> documented in xorg.conf(5).  It's been a while since I've touched the
> file, but I think you'd want something along the following lines.  (Back
> in the day, it was also necessary to configure the video card and input
> devices explicitly, but X autodetects them, even when not trying to
> configure itself fully automatically.)
>
> Also, if the monitors are consistently showing up in the wrong order,
> you could simply swap the cables. ;-)
>
> Section "Device"
>      Option "Monitor-DVI-I-1" "Right monitor"
>      Option "Monitor-DVI-I-2" "Left monitor"
>      Option "Monitor-HDMI-1"  "HDMI output"
> EndSection
>
> Section "Monitor"
>      Identifier "Right monitor"
>      Option     "Primary" "false"
> EndSection
>
> Section "Monitor"
>      Identifier "Left monitor"
>      Option     "Primary" "true"
> EndSection
>
> Section "Monitor"
>      Identifier "HDMI output"
>      Option     "Enable" "false"
> EndSection
>
> Section "Screen"
>      Identifier "Left screen"
>      Monitor    "Left monitor"
> EndSection
>
> Section "Screen"
>      Identifier "Right screen"
>      Monitor    "Right monitor"
> EndSection
>
> Section "ServerLayout"
>      Identifier "My layout"
>      Screen     "Left screen"
>      Screen     "Right screen" RightOf "Left screen"
> EndSection
>




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