Difference between revisions of "Ubuntu 18 04 modifications"

From RobotinoWiki
(→‎Mirror display)
(→‎Activate only one display)
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</pre>
 
</pre>
  
−
==Activate only one display==
+
==Mirror displays==
 +
There are four situations to take care of
 +
# No external display connected
 +
# VGA display connected
 +
# HDMI display connected
 +
# VGA and HDMI display connected
 +
 
 +
If no external display is connected only the internal display eDP-1 is in use. You can see eDP-1 when connecting via VNC.
 +
 
 +
If the VGA display is connected eDP-1 and DP-3 are in use. To mirror the content of eDP-1 to DP-3 run the VGA.sh script.
 +
 
 +
If the HDMI display is connected eDP-1 and HDMI-1 are in use. To mirror the content of eDP-1 to HDMI-1 run the HDMI.sh script.
 +
 
 +
If the VGA and HDMI displays are connected, eDP-1, DP-3 and HDMI-1 are in use. To mirror the content of eDP-1 to DP-3 and HDMI-1 run the VGA-HDMI.sh script.
 +
 
 
Script to check which display is connected. If VGA is connected make it the primary display and disable the others. If HDMI-1 is connected make it the primary display and disable the others. If non is connected use the internal display.
 
Script to check which display is connected. If VGA is connected make it the primary display and disable the others. If HDMI-1 is connected make it the primary display and disable the others. If non is connected use the internal display.
  
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<pre>
 
<pre>
 
#!/bin/bash
 
#!/bin/bash
 +
 +
VGAprev=0
 +
HDMIprev=0
  
 
for (( ; ; ))
 
for (( ; ; ))
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xrandrout=$(xrandr)
 
xrandrout=$(xrandr)
 +
 +
VGA=0
 +
HDMI=0
  
 
if [[ $xrandrout == *"DP-3 connected"* ]] ; then
 
if [[ $xrandrout == *"DP-3 connected"* ]] ; then
−
   echo DP3
+
   VGA=1
−
  xrandr --output DP-3 --primary --auto --output eDP-1 --off --output HDMI-1 --off
+
fi
−
elif [[ $xrandrout == *"HDMI-1 connected"* ]] ; then
+
 
−
   echo HDMI-1
+
if [[ $xrandrout == *"HDMI-1 connected"* ]] ; then
−
   xrandr --output HDMI-1 --primary --auto --output eDP-1 --off --output DP-3 --off
+
   HDMI=1
−
else
+
fi
−
  echo eDP-1
+
 
−
   xrandr --output eDP-1 --primary --auto --output DP-3 --off --output HDMI-1 --off
+
if (( VGAprev != VGA || HDMIprev != HDMI )) ; then
 +
   VGAprev=$VGA
 +
  HDMIprev=$HDMI
 +
 
 +
  if (( VGA == 1 && HDMI == 1 )) ; then
 +
    echo VGA and HDMI
 +
    /home/robotino/.screenlayout/VGA-HDMI.sh
 +
  elif (( VGA == 1 )) ; then
 +
    echo VGA only
 +
    /home/robotino/.screenlayout/VGA.sh
 +
   elif (( HDMI == 1 )) ; then
 +
    echo HDMI only
 +
    /home/robotino/.screenlayout/HDMI.sh
 +
  fi
 
fi
 
fi
  
 
sleep 5
 
sleep 5
 
done
 
done
 +
</pre>
 +
 +
VGA.sh
 +
<pre>
 +
#!/bin/sh
 +
xrandr --output eDP-1 --primary --mode 1600x1200 --pos 0x0 --rotate normal --output HDMI-3 --off --output HDMI-2 --off --output HDMI-1 --off --output DP-3 --mode 1600x1200 --pos 0x0 --rotate normal --output DP-2 --off --output DP-1 --off
 +
</pre>
 +
 +
HDMI.sh
 +
<pre>
 +
#!/bin/sh
 +
xrandr --output eDP-1 --primary --mode 1600x1200 --pos 0x0 --rotate normal --output HDMI-3 --off --output HDMI-2 --off --output HDMI-1 --mode 1600x1200 --pos 0x0 --rotate normal --output DP-3 --off --output DP-2 --off --output DP-1 --off
 +
</pre>
  
 +
VGA-HDMI.sh
 +
<pre>
 +
#!/bin/sh
 +
xrandr --output eDP-1 --primary --mode 1600x1200 --pos 0x0 --rotate normal --output HDMI-3 --off --output HDMI-2 --off --output HDMI-1 --mode 1600x1200 --pos 0x0 --rotate normal --output DP-3 --mode 1600x1200 --pos 0x0 --rotate normal --output DP-2 --off --output DP-1 --off
 
</pre>
 
</pre>
  

Revision as of 12:09, 23 April 2019

Graphics drivers

add-apt-repository ppa:oibaf/graphics-drivers
apt-get update
apt-get upgrade

Mirror displays

There are four situations to take care of

  1. No external display connected
  2. VGA display connected
  3. HDMI display connected
  4. VGA and HDMI display connected

If no external display is connected only the internal display eDP-1 is in use. You can see eDP-1 when connecting via VNC.

If the VGA display is connected eDP-1 and DP-3 are in use. To mirror the content of eDP-1 to DP-3 run the VGA.sh script.

If the HDMI display is connected eDP-1 and HDMI-1 are in use. To mirror the content of eDP-1 to HDMI-1 run the HDMI.sh script.

If the VGA and HDMI displays are connected, eDP-1, DP-3 and HDMI-1 are in use. To mirror the content of eDP-1 to DP-3 and HDMI-1 run the VGA-HDMI.sh script.

Script to check which display is connected. If VGA is connected make it the primary display and disable the others. If HDMI-1 is connected make it the primary display and disable the others. If non is connected use the internal display.

Add it to Startup Applications Alt+F2 and run the gnome-session-properties 

#!/bin/bash

VGAprev=0
HDMIprev=0

for (( ; ; ))
do

xrandrout=$(xrandr)

VGA=0
HDMI=0

if [[ $xrandrout == *"DP-3 connected"* ]] ; then
  VGA=1
fi

if [[ $xrandrout == *"HDMI-1 connected"* ]] ; then
  HDMI=1
fi

if (( VGAprev != VGA || HDMIprev != HDMI )) ; then
  VGAprev=$VGA
  HDMIprev=$HDMI

  if (( VGA == 1 && HDMI == 1 )) ; then
    echo VGA and HDMI
    /home/robotino/.screenlayout/VGA-HDMI.sh
  elif (( VGA == 1 )) ; then
    echo VGA only
    /home/robotino/.screenlayout/VGA.sh
  elif (( HDMI == 1 )) ; then
    echo HDMI only
    /home/robotino/.screenlayout/HDMI.sh
  fi
fi

sleep 5
done

VGA.sh 

#!/bin/sh
xrandr --output eDP-1 --primary --mode 1600x1200 --pos 0x0 --rotate normal --output HDMI-3 --off --output HDMI-2 --off --output HDMI-1 --off --output DP-3 --mode 1600x1200 --pos 0x0 --rotate normal --output DP-2 --off --output DP-1 --off

HDMI.sh 

#!/bin/sh
xrandr --output eDP-1 --primary --mode 1600x1200 --pos 0x0 --rotate normal --output HDMI-3 --off --output HDMI-2 --off --output HDMI-1 --mode 1600x1200 --pos 0x0 --rotate normal --output DP-3 --off --output DP-2 --off --output DP-1 --off

VGA-HDMI.sh 

#!/bin/sh
xrandr --output eDP-1 --primary --mode 1600x1200 --pos 0x0 --rotate normal --output HDMI-3 --off --output HDMI-2 --off --output HDMI-1 --mode 1600x1200 --pos 0x0 --rotate normal --output DP-3 --mode 1600x1200 --pos 0x0 --rotate normal --output DP-2 --off --output DP-1 --off

VNC

apt-get install x11vnc

/etc/systemd/system/x11vnc.service 

[Unit]
Description="x11vnc"

[Service]
ExecStart=/usr/bin/x11vnc -auth /run/user/1000/gdm/Xauthority -forever -loop -noxdamage -repeat -rfbport 5900 -shared
Restart=on-failure

[Install]
WantedBy=display-manager.service

systemctl enable x11vnc.service

Realsense

sudo apt-key adv --keyserver keys.gnupg.net --recv-key C8B3A55A6F3EFCDE || sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-key C8B3A55A6F3EFCDE
sudo add-apt-repository "deb http://realsense-hw-public.s3.amazonaws.com/Debian/apt-repo bionic main" -u

sudo apt-get install librealsense2-utils
sudo apt-get install librealsense2-dev

optinal

sudo apt-get install librealsense2-dbg
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