Difference between revisions of "Ubuntu"

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(Modfications made)
Line 12: Line 12:
 
===NetworkManager===
 
===NetworkManager===
  
Networkmanager is a bad idea, just disable it and use <code>/etc/network/interfaces</code> to configure your network.
+
NetworkManager is a bad idea, just disable it and use <code>/etc/network/[[Networking#Interfaces|interfaces]]</code> to configure your network. You may need to install ifupdown and disable the netplan thing to achieve this.
 
 
<syntaxhighlight lang=bash>
 
apt-get purge network-manager
 
vi /etc/network/interfaces
 
auto <interface>
 
iface <interface> inet dhcp
 
    wpa-ssid <ssid>
 
    wpa-psk <password>
 
</syntaxhighlight>
 
 
 
For interfaces that may not be connected use <code>allow-hotplug</code> instead of <code>auto</code>.<br>
 
The bootprocces now does not wait for an DCHP-answer on disconnected interfaces. Saves you about 5 minutes during startup.
 
  
 
===Settings GUI===
 
===Settings GUI===

Revision as of 21:16, 15 November 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. You may need to install ifupdown and disable the netplan thing to achieve this.

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;