Ubuntu: Difference between revisions
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;xrandr --output VGA-1-2 --off | ;xrandr --output VGA-1-2 --off | ||
:Turn off the VGA display. The name may differ on other configurations. | :Turn off the VGA display. The name may differ on other configurations. | ||
==Add applications== | |||
To add an application to the 'Open with' list edit /usr/share/applications/newapp.desktop. | |||
For opening jupyter notebooks I added jupyter.desktop that looks like below. | |||
I don't think everything is needed but it works. | |||
[Desktop Entry] | |||
Type=Application | |||
Version=1.0 | |||
Name=Jupyter | |||
GenericName=Jupyter notebook | |||
Comment=Prototyping and documentation | |||
Exec=jupyter notebook %F | |||
Icon=jupyter | |||
Terminal=false | |||
Categories=GTK;Development;IDE; | |||
MimeType=text/plain;text/x-python; | |||
StartupNotify=true | |||
Keywords=Python;Editor; | |||
Revision as of 11:27, 5 October 2019
Ubuntu is a linux distribution derived from debian. It's a very nice plug&play OS with all features I need.
- cat /etc/os-release
- cat /etc/lsb-release
- lsb_release -a
- Show the currently installed version. os-release has most information.
Modfications made
The few things I needed to tweak are listed here.
NetworkManager
Networkmanager is a bad idea, just disable it and use /etc/network/interfaces to configure your network.
apt-get purge network-manager
vi /etc/network/interfaces
auto <interface>
iface <interface> inet dhcp
wpa-ssid <ssid>
wpa-psk <password>
For interfaces that may not be connected use allow-hotplug instead of auto.
The bootprocces now does not wait for an DCHP-answer on disconnected interfaces. Saves you about 5 minutes during startup.
Settings GUI
One day I could not start the settings GUI anymore. Removing the unity-control-center fixed the problem one time. On another install it didn't.
sudo apt-get remove unity-control-center
Display
When I connect a monitor to my laptop on HDMI automatically a 3rd VGA display is found.
- xrandr --listactivemonitors
- Show all active monitors
- xrandr --output VGA-1-2 --off
- Turn off the VGA display. The name may differ on other configurations.
Add applications
To add an application to the 'Open with' list edit /usr/share/applications/newapp.desktop.
For opening jupyter notebooks I added jupyter.desktop that looks like below. I don't think everything is needed but it works.
[Desktop Entry] Type=Application Version=1.0 Name=Jupyter GenericName=Jupyter notebook Comment=Prototyping and documentation Exec=jupyter notebook %F Icon=jupyter Terminal=false Categories=GTK;Development;IDE; MimeType=text/plain;text/x-python; StartupNotify=true Keywords=Python;Editor;