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Month: December 2016

Re: [trinity-users] Re: Re: Dual screen setup not remembered

From: midi-pascal <midi-pascal@...>
Date: Thu, 1 Dec 2016 17:56:23 -0500
Thank you!

Inspired by your scripts and the output of xrandr, two lines in my 
.bashrc did the job:

xrandr --output HDMI-0 --right-of DVI-0 --auto --primary
xrandr --output DVI-0 --auto

I over-simplified the commands because I am on a desktop and my two 
screens are always connected.

No more fiddling with screen settings on each login! :-)

On 16-12-01 03:00 PM, deloptes wrote:
> iadest@... wrote:
>> OK, this is a sum of 3 scripts I use:
>> #!/bin/bash
>> #Test if we are not in dock
>> if [ -a /dev/video0 ]
>> then
>> #echo "Going to dock mode!";
>> xrandr --output LVDS1 --off
>> #xrandr --output VGA1 --mode 1600x1200
>> xrandr --newmode "1600x1200b" 180.0   1600 1604 1796 2050 1200
>> 1201 1204 1250 +hsync +vsync
>> xrandr --addmode VGA1 1600x1200b
>> xrandr --output VGA1 --primary --mode 1600x1200b
>> xrandr --addmode DVI1 1600x1200b
>> xrandr --output DVI1 --mode 1600x1200b
>> xrandr --output DVI1 --right-of VGA1
>> else
>> #we are not in dock. Check do we have output on VGA
>> if [ -n "`xrandr | grep \"VGA1 conected\"`" ]
>> then
>> #echo "Going to projector mode!";
>> xrandr --output LVDS1 --mode 1024x768 --output VGA1
>> --mode 1024x768 --same-as LVDS1
>> fi
>> fi
>> There may be problems with newlines. "1201 1204 ..." is the continuing
>> of previous line. "--mode 1024x768 --same-as LVDS1" is also in previous
>> one.
>> WARNING: Do not use this script directly on Your monitor without
>> checking. High frequency may damage the monitor, especially old CRTs.
>> So what I'm doing there: first I check for availability of my tuner
>> card, this card is installed in dock. It computer is in dock, I:
>> 1. Turn the LCD off
>> 2. Set a custom 1600x1200 mode (here called "1600x1200b" for my
>> monitor which is connected through Sun-VGA adapter and X has no idea
>> how to handle 1600x1200 on it.
>> 3. Activate it as primary.
>> 4. Activate the second display (DVI) as the one right of VGA monitor.
>> If I'm not in dock, I look for something connected to VGA port.
>> If there is, LCD gets down to 1024x768, and VGA copies it.
>> MCbx
>> Gerhard Zintel <gerhard.zintel@...>
>> napisaƂ(a):
>>> On Thursday 01 December 2016, deloptes wrote:
>>>> iadest@... wrote:
>>>>> Maybe this solution is not official and proper one, but works:
>>>>> Put the xrandr commands in a shell script and execute is at
>>>>> startup.
>>>>> I have such script which detects is my notebook docked first. If
>>>>> yes, dual-screen configuration for dock outputs are set and
>>>>> notebook's LCD is turned off.
>>>>> If it's not docked, script checks for display connected to VGA
>>>>> port. If it is, it duplicates screen from notebook decreasing
>>>>> resolutions to 1024x768 as it's usually a projector in a lecture
>>>>> room and it can't do more.
>>>>> MCbx
>>>> I do the same. In the office I have two additional monitors and at
>>>> home one. So a shell script is checking what is available and runs
>>>> xrandr to setup the monitor and resolution.
>>>> Perhaps this is the reason we never noticed that the settings are
>>>> not saved and/or applied at tde session startup.
>>>> In fact I have noticed this on a VM ware recently, but I was
>>>> thinking it has to do with the vmware.
>>>> I think it is worth a bug report, so that we may not forget to
>>>> inspect this.
>>> Can one of you guys please share that kind of shell script here on
>>> the list to give me a clue how to start?
>>> Gerhard
> SCREEN=`xrandr | egrep "[[:space:]]connected[[:space:]]" | grep -v eDP1`
> if [[ "x"$SCREEN != "x"  ]]
> then
>          xrandr --output $SCREEN --right-of eDP1 --auto
>          xrandr --output eDP1 --off
> else
>          xrandr --output eDP1 --auto
> fi
> eDP1 or LVDS depends on your card - look into the driver manual
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