Sunday, March 29, 2026

How to activate REISUB in Fedora 43

From:


Configure REISUB in FEDORA by doing:

$ grep -r -e kernel.sysrq /{etc,usr/lib}/sysctl.*

This command will output something like:

/usr/lib/sysctl.d/50-default.conf:# Use kernel.sysrq = 1 to allow all keys.

/usr/lib/sysctl.d/50-default.conf:kernel.sysrq = 16


According to the comments in the file /usr/lib/sysctl.d/50-default.conf we have to create a file /etc/sysctl.d/90-sysctl.conf with the line kernel.sysrq = 1

$ sudo echo "kernel.sysrq = 1" | sudo tee /etc/sysctl.d/90-sysrq.conf


Now, reboot the computer or apply the change with:

$ sudo systemctl restart systemd-sysctl.service


Verify with:

$ cat /proc/sys/kernel/sysrq

This should show 1


Now you can perform REISUB. To activate REISUB in Fedora, you can follow these steps:

1. Press and hold the Alt+PrtScn on your keyboard.

2. While holding the `Alt` key, press the following keys in sequence: `R`, `E`, `I`, `S`, `U`, `B`.

3. Release the `Alt` key after pressing the last key (`B`).

This key combination will trigger the REISUB sequence, which is a safe way to reboot your system without causing data loss. Each key in the sequence corresponds to a specific action:

  • R: Switch the keyboard from raw mode to XLATE mode. We do this because the Desktop has stopped responding to the keyboard and we want to ensure any applications (like XOrg or Wayland) are not intercepting the keystrokes.
  • E: Send the SIGTERM signal to all processes, allowing them to terminate gracefully.
  • I: Send the SIGKILL signal to all processes, forcing them to terminate immediately.
  • S: Sync all mounted filesystems, ensuring that all data is written to disk.
  • U: Remount all filesystems in read-only mode, preventing any further changes to the disk.
  • B: Reboot the system immediately without syncing or unmounting filesystems.

Make sure to use this key combination only when your system is unresponsive and you need to perform a forced reboot.

Thursday, May 1, 2025

NVIDIA GeForce 4070Ti in Fedora 42

 In order to install the drivers of the NVIDIA GeForce RTX 4070 Ti on Fedora 42, I followed the steps on the tutorial:

https://www.if-not-true-then-false.com/2015/fedora-nvidia-guide/

All worked flawlessly.


Thursday, June 27, 2024

VSCODE extensions

Extensions for VSCODE:

  • Bookmarks
  • Code Spell Checker + Spanish dictionary
  • LaTeX Workshop
  • LTeX+ grammar/spell checking
  • Jupyter
  • Python


Configuration JSON:

{
    // GENERAL EDITOR CUSTOMIZATION:
    // Disable GPU acceleration in the integrated terminal
    "terminal.integrated.gpuAcceleration": "off",
    // Disable copying with syntax highlighting to avoid issues when pasting into other applications
    "editor.copyWithSyntaxHighlighting": false,
    // Makes the text cursor slightly wider so it is easier to spot in dense text
    "editor.cursorWidth": 3,
    // Enable bracket pair guides only for the active pair to reduce visual clutter and improve focus on the current code block
    "editor.guides.bracketPairs": "active",
    // Disable warnings for non-basic ASCII characters
    "editor.unicodeHighlight.nonBasicASCII": false,
    // Enable smooth scrolling for a better user experience
    "editor.mouseWheelZoom": true,
    // Enable smooth scrolling for lists and the editor
    "workbench.list.smoothScrolling": true,
    // Enable smooth caret animation for a more fluid typing experience
    "editor.cursorSmoothCaretAnimation": "on",
    // Enable smooth scrolling in the terminal and editor for a more fluid experience
    "terminal.integrated.smoothScrolling": true,
    // Enable smooth scrolling in the editor for a more fluid experience
    "editor.smoothScrolling": true,
    // Set the default Python interpreter path
    "python.defaultInterpreterPath": "/bin/python",
    // Disable the minimap to reduce distractions and improve performance
    "editor.minimap.enabled": false,
    // Set the color theme to Monokai for a visually appealing coding environment
    "workbench.colorTheme": "Monokai",
    // Enable word wrap to prevent horizontal scrolling and improve readability
    "editor.wordWrap": "on",
    // Show dots for double spaces and trailing spaces
    "editor.renderWhitespace": "boundary",
    // Ask to save files before closing the editor
    "files.hotExit": "off",
    // Disable warnings for long lines
    "terminal.integrated.inheritEnv": false,
    // Skip the "matlab.interrupt" command in the terminal to prevent conflicts with MATLAB's interrupt functionality
    "terminal.integrated.commandsToSkipShell": [
        "matlab.interrupt"
    ],
    
    // SPELL CHECKING CUSTOMIZATION:
    // Enable spell checking for English and Spanish, and make it case sensitive to catch more errors
    "cSpell.caseSensitive": true,
    // Set the languages for spell checking to English and Spanish
    "cSpell.language": "en,es",
    // User defined words for spell checking
    "cSpell.userWords": [
        "Eulerian",
        "Leonhard",
        "turbomachinery"
    ],
    "cSpell.ignoreRegExpList": [
        // Prevents the spell checker from flagging LaTeX commands (anything starting with \)
        "\\\\[a-zA-Z]+",
        // Prevents the spell checker from flagging citation and reference keys
        "\\\\(cite|ref|eqref|label)\\{[^}]+\\}"
    ],
    
    // LATEX WORKSHOP CUSTOMIZATION:
    // Enable SyncTeX after building the LaTeX document for better synchronization between source and PDF
    "latex-workshop.synctex.afterBuild.enabled": true,
    // Enable synchronization between the outline view and the PDF viewer for easier navigation
    "latex-workshop.view.outline.sync.viewer": true,
    // Trims the PDF preview to remove white margins
    "latex-workshop.view.pdf.trim": 15,
    // Customize the color and font style of section headings in LaTeX files to make them stand out
    "editor.tokenColorCustomizations": {
        "textMateRules": [
            {
                "scope": [
                    "entity.name.section.latex",
                    "entity.name.section.chapter.latex",
                    "entity.name.section.subsection.latex",
                    "entity.name.section.subsubsection.latex"
                ],
                "settings": {
                    "foreground": "#FF0000",
                    "fontStyle": "bold"
                }
            }
        ]
    },
}
 

Friday, May 24, 2024

Configurando Logitech Lift con SOLAAR

 El logitech lift tiene 6 botones y ellos se pueden personalizar usando solaar:

https://github.com/pwr-Solaar/Solaar


En particular me gusta activar con el boton central pequeño (DVI ) el comando para hacer el puntero más visible en KDE que es Ctrl+Shift+F12:

Eso se hace así:

En el menú principal:

  • Active Key/Button Diversion: DPI Switch - Diverted


Luego en Rule Editor configure la regla:

  • Key >> DVI Switch (Key Up)
  • Key Press >> Control_L Shift_L F12 (agregue teclas con Add key) y luego seleccione Click

Save changes y eso es todo.


Para entender esto me sirvió el video: https://www.youtube.com/watch?v=CHbFFvxldG4





Thursday, May 2, 2024

Instalando FEDORA 43 - KDE Edition

Al instalar:

  • Use modo UEFI. 
  • Cree las siguientes particiones:
    • Partición EFI (EFI) en sda1 de 600 Mb montada en /boot/efi
    • Partición BOOT (EXT4 filesystem) en sda2 de 2 Gb montada en /boot
    • Partición SWAP (SWAP) en sda3 de 16 Gb
    • Partición ROOT (BTRFS filesystem) en sda4 montada en /
    • Partición HOME (BTRFS filesystem) en sda5 montada en /home
    • Partición BODEGA (BTRFS filesystem) en sda6 montada en /bodega

  • Y haga: sudo chown daalvarez:daalvarez /bodega

Se instaló con sudo dnf install:

  • audacity
  • ImageMagick
  • inkscape
  • kate
  • qgis python3-qgis qgis-grass qgis-server
  • texlive-scheme-full
  • texstudio
  • workrave
  • xournalpp


Y adicionalmente:

  • dictd
  • dvipng
  • git
  • git-lfs (aunque yo hice unas cosas desde la página del programa -> revisar)
  • helix
  • htop
  • kompare
  • krename
  • kruler
  • krusader
  • hyphen-es
  • hunspell-es
  • hunspell-es-CO
  • mc
  • meld
  • ocrmypdf
  • octave
  • pdftk
  • perl-Image-ExifTool
  • subversion
  • tesseract-langpack-spa
  • vim
  • vlc
  • wxmaxima


Otros archivos

  • dbus-glib (si va a instalar Zotero)
  • gtksourceview3 (si va a instalar TexText en INKSCAPE, para el syntax highlighting)


Y desde la página web de cada programa (bajando el respectivo .RPM):

  • Anaconda
  • Antigravity
  • Visual Studio Code
  • Brave browser
  • Google Earth Pro
  • pdfstudioviewer
  • FSPViewer (para ver fotos 360°)


En comparación con Kubuntu, ya se encuentran instalados:

  • gwenview
  • kolourpaint


No instalé esta vez:

  • Google Chrome
  • kdiff3
  • matlab
  • Microsoft Edge
  • obstudio
  • tor browser
  • zoom


No existen en Fedora:

  • kubuntu-restricted-extras
  • matlab-support
  • synaptic
  • ttf-mscorefonts-installer


Active el SSH con:
 
Configure meld as the default tool in git:
git config --global diff.tool meld
git config --global merge.tool meld
 

Sunday, March 24, 2024

No WIFI on ASUS Vivobook 15


This device is not supported by Linux yet!

 

daalvarez@laptop:~/Downloads$ lspci | grep Network
0000:02:00.0 Network controller: MEDIATEK Corp. Device 7902
 

 

Check:

https://linux-hardware.org/?probe=97a323caf9



In order to circumvent this problem I bought a USB with the chipset RTL8188FU 802.11N from AliExpress:

daalvarez@laptop:~$ lsusb

Bus 001 Device 002: ID 0bda:f179 Realtek Semiconductor Corp. RTL8188FTV 802.11b/g/n 1T1R 2.4G WLAN Adapter

Linux does not recognize it out of the box. Therefore, I used the drivers and instructions in:

https://github.com/kelebek333/rtl8188fu

with the following modifications (given that they are for Debian-based distributions, and I am using Fedora):

Instead of

sudo apt-get install build-essential git dkms linux-headers-$(uname -r)


Do:

sudo dnf upgrade

sudo dnf install dkms git


Then reboot and continue with ...

sudo dkms install ./rtl8188fu

etc ...


Down below, use the instructions for DRACUT below instead of the ones for INITRAMFS.


Reboot again, and you now have WIFI in your laptop.

Tuesday, September 5, 2023

Ajustando las ventanas de LXQt

LXQt does not allow to easily resize.


I created some shortcuts that allow to resize a windows easily

$ kate .config/openbox/rc.xml

Then add under <keyboard> the following:


    <keybind key="C-S-KP_4">              # Left
      <action name="UnmaximizeFull"/>
      <action name="MoveResizeTo">
        <width>50%</width>
        <height>100%</height>
        <x>0%</x>
        <y>0%</y>
      </action>
    </keybind>
    <keybind key="C-S-KP_6">              # Right
      <action name="UnmaximizeFull"/>
      <action name="MoveResizeTo">
        <width>50%</width>
        <height>100%</height>
        <x>50%</x>
        <y>0%</y>
      </action>
    </keybind>
    <keybind key="C-S-KP_2">              # Up
      <action name="UnmaximizeFull"/>
      <action name="MoveResizeTo">
        <width>100%</width>
        <height>50%</height>
        <x>0%</x>
        <y>50%</y>
      </action>
    </keybind>
    <keybind key="C-S-KP_8">              # Down
      <action name="UnmaximizeFull"/>
      <action name="MoveResizeTo">
        <width>100%</width>
        <height>50%</height>
        <x>0%</x>
        <y>0%</y>
      </action>
    </keybind>

    <keybind key="C-S-KP_7">        # UpperQuarterLeft
      <action name="UnmaximizeFull"/>
      <action name="MoveResizeTo"><x>0</x><y>0</y><height>50%</height><width>50%</width></action>
    </keybind>

    <keybind key="C-S-KP_1">        # LowerQuarterLeft
      <action name="UnmaximizeFull"/>
      <action name="MoveResizeTo"><x>0</x><y>-0</y><height>50%</height><width>50%</width></action>
    </keybind>

    <keybind key="C-S-KP_3">        # LowerQuarterRight
      <action name="UnmaximizeFull"/>
      <action name="MoveResizeTo"><x>-0</x><y>-0</y><height>50%</height><width>50%</width></action>
    </keybind>

    <keybind key="C-S-KP_9">        # UpperQuarterRight
      <action name="UnmaximizeFull"/>
      <action name="MoveResizeTo"><x>-0</x><y>0</y><height>50%</height><width>50%</width></action>
    </keybind>

Finally run

$ openbox --reconfigure
 

Wednesday, May 10, 2023

Ajustando las resoluciones de las pantallas de los computadores de la U

 Con 

$ xrand

conozco las resoluciones


PILLARBOX



ESTE ES EL COMANDO PARA AJUSTAR LA PANTALLA IZQUIERDA A LA PANTALLA DERECHA (Pantalla de baja resolución se ajusta a pantalla de alta resolución)

xrandr --output VGA-1 --mode 1680x1050

xrandr --output DP-1 --mode 1600x900 --same-as VGA-1 --scale 1.15x1.167


El 1.15 sale de                       El 1.167 sale de 1050/900


      434

-------------- = 1.15

    236*473

   ---------

      296




xrandr --output DP-1 --mode 1600x900

xrandr --output VGA-1 --mode 1680x1050 --same-as DP-1 --scale 0.95x1


0.95 = 1600/1680x1050


1    -> ya que no hay que escalar

 

 

C401:

Televisor:

xrandr --output HDMI-1 --mode 1920x1080
xrandr --output HDMI-2 --mode 1440x900 --same-as HDMI-1 --scale 1.33x1.2

1920/1440 = 1.33

1080/900 = 1.2


Proyector:

xrandr --output HDMI-1 --mode 1920x1200
xrandr --output HDMI-2 --mode 1440x900 --same-as HDMI-1 --scale 1.33x1.33

 

 


Sunday, December 18, 2022

Load Strava Heatmap on qgis

 Use the URL:

https://heatmap-external-a.strava.com/tiles-auth/ACTIVITY/COLOR/{zoom}/{x}/{y}.png?Key-Pair-Id=MYVALUE&Policy=MYVALUE&Signature=MYVALUE

After logging in to https://www.strava.com/heatmap/ using a browser, you then have to retrieve and replace the MYVALUE items with appropriate cookie values for the following:

  • CloudFront-Key-Pair-Id
  • CloudFront-Policy
  • CloudFront-Signature
Click on the padlock icon in the URL bar while at https://www.strava.com/heatmap/ and take the values from Cookies.

You can use also this Chrome extension to fill the fields:
https://github.com/zekefarwell/josm-strava-heatmap

Monday, October 31, 2022

Jabra: cannot set freq 48000 to ep 0x3

 To fix this problem, I followed the steps in:

https://cloudalbania.com/posts/2022-04-fix-pulseaudio-usb-device/


Edit /etc/pulse/daemon.conf


$ grep sample-rate /etc/pulse/daemon.conf

; default-sample-rate = 44100

; alternate-sample-rate = 48000


$ pulseaudio --dump-conf  | grep sample-rate

default-sample-rate = 44100

alternate-sample-rate = 48000


and change default-sample-rate to 48000:


$ pulseaudio --dump-conf  | grep sample-rate

default-sample-rate = 48000

alternate-sample-rate = 48000


Finally, restarted PulseAudio with pulseaudio -k



Monday, January 10, 2022

Install MAXIMA 5.30

Unzip all *.rpm that are found in 

https://sourceforge.net/projects/maxima/files/Maxima-Linux/5.30.0-Linux/

(Files maxima-lang-*.rpm are optional)


Download:

 wget http://mirrors.kernel.org/ubuntu/pool/universe/n/ncurses/libncurses5_6.2-0ubuntu2_i386.deb

wget http://ftp.de.debian.org/debian/pool/main/n/ncurses/libtinfo5_6.2+20201114-2_i386.deb


Crear soft link a info/

drwxrwxr-x  6 daam daam 4096 Dec 15 21:18 ./

drwxrwxr-x  4 daam daam 4096 Dec 15 22:03 ../
drwxrwxr-x  2 daam daam 4096 Dec 15 21:22 bin/
lrwxrwxrwx  1 daam daam   41 Dec 15 21:18 info -> /home/daam/bin/maxima-5.30/usr/share/info/
drwxrwxr-x  3 daam daam 4096 Dec 15 20:38 lib/
drwxrwxr-x  3 daam daam 4096 Dec 15 20:38 libexec/
drwxrwxr-x 13 daam daam 4096 Dec 15 21:11 share/
(base) daam@almarhall:~/bin/maxima-5.30/usr$


Para instalar WXMAXIMA:

sudo apt-get install autotools-dev automake

sudo apt-get install libwxgtk-media3.0-gtk3-dev

Download wxmaxima from: https://github.com/wxMaxima-developers/wxmaxima/releases/tag/Version-16.04.2

./configure --prefix=/home/daam/Downloads/wx



Execute:

export LD_LIBRARY_PATH=/home/daam/bin/maxima-5.30/lib/i386-linux-gnu:/usr/lib/x86_64-linux-gnu


Now you can make

./wxmaxima


Saturday, November 27, 2021

Installing KUBUNTU 20.04

I opt for installing using the PPAs/DEBs the following programs (this is because the UBUNTU repositories tend to store older software):

  • anaconda (python distribution)
  • audacity
  • brave browser
  • google earth
  • google chrome
  • gwenview
  • inkscape
  • matlab
  • microsoft edge
  • obstudio
  • pdfstudioviewer
  • qgis
  • texstudio
  • tor browser
  • vscode
  • workrave
  • xournal++
  • zoom


I install from the official repositories the huion driver

digimend-kernel-drivers (en caso de que lo de arriba no funcione)


I install using "apt install"

  • dict 
  • dvipng 
  • git
  • git lfs
  • htop
  • hunspell-es
  • helix
  • imagemagick
  • kdiff3 (no se si valga la pena instalarlo)
  • kolourpaint
  • kompare
  • krename
  • kruler
  • krusader
  • kubuntu-restricted-extras
  • matlab-support
  • mc
  • meld 
  • octave
  • rar
  • subversion
  • synaptic
  • texlive-full
  • ttf-mscorefonts-installer
  • vim
  • wxmaxima


Programas necesarios preinstalados

  • LibreOffice
  • VLC


After installing I had a problem with the resolution 640x480 was the only one available. I fixed it using:

Search Nvidia packages:

$ dpkg -l | grep -i nvidia

Remove all the Nvidia drivers

$ sudo apt-get remove --purge '^nvidia-.*'

Go to: System settings >> Driver manager >> Additional Drivers >> select first one (NVIDIA driver 390 propietary, tested) >> Apply Changes

Reboot

Taken from: https://askubuntu.com/questions/1138975/stuck-at-640x480-resolution/1351606 


Install the HELVETICA FONT: 

https://getfontfree.com/helvetica-font/

So that inkscape does not complain when opening EPS files generated in MATLAB


Finally, disable the boot screen and show only kernel and boot text:

https://askubuntu.com/questions/33416/how-do-i-disable-the-boot-splash-screen-and-only-show-kernel-and-boot-text-inst


Install MATLAB 2021b in Linux Kubuntu 20.04

 In order to install MATLAB 2021b, run the following commands:

$ sudo unzip -X -K matlab_R2021b_glnxa64.zip 

$ xhost +SI:localuser:root

$ sudo ./install 

(adapted from: https://www.mathworks.com/matlabcentral/answers/1459909-installer-hang-when-installing-matlab-r2021b-as-root-on-ubuntu-20-04/)


Finally run:

$ sudo apt install matlab-support

Wednesday, November 24, 2021

Configurando OBS para las clases por ZOOM

* Instale Websockets server plug in.

* Instale StreamFX plug in - 3D transform filter.

* Configure el audio Input/Output con PulseAudio

* Cámara (3D transform filter):
 - Alinear la cámara con el borde superior del tablero, y las dos esquinas superiores con la pantalla.
 - 3D transform:

OPCION 1:
    - Camera mode: Corner pin
    - Enable Mipmapping: OFF (due to computational overhead)

OPCION 2:
   - Camera mode: Perspective
   - Field of view: 86
   - Rotation (pitch): 2.59 grados
   - Shear X: 1.95%
   
* Video Capture Device (V4L2):
   - Video format: BGR3 (emulated)
   - Resolution 1280x720
   - Sharpness: 180
   - Focus, Auto: OFF
   
* Para las diapositivas de fondo use Window Capture (Xcomposite):   
   - Color key: CUSTOM -> #ffffff
   - Contrast: -1.5

* Configure el directorio de los videos:
Settings -> Output -> Recording -> Recording Path -> /home/daalvarez/Videos

* Cuando intente grabar aparecerá el error "Failed to open NVENC Codec: Function not implemented". Se soluciona con:
Settings -> Output -> Recording -> Encoder -> Software (x264 low CPU usage preset)

* Para evitar una titilación si no estoy mal lo que hice fue:
  - EN NVIDIA X Server Settings  -> OpenGL settings -> Allow Flipping -> OFF (ensaye primero)

Saturday, November 13, 2021

How to crop PDFs

 Something that I have is to read papers with a very small font, specially when there are large margins around.


In order to crop this margin, I do not use linux at all, but this page: Crop PDF Online. Automatically trim white margins in one click. Then, I download the PDF and I print it using FIREFOX. I like it better than OKULAR,since it does have an accurate preview. 

When cropping a PDF, simply concentrate on the upper and lower margins. Left and right margins are not that important, since when you print the PDF, it will scale properly.

Monday, August 30, 2021

How to install Huion 1060 Plus on Ubuntu 20.04

METHOD 1:


METHOD 2:

            That is:

$ sudo apt-get install -y "linux-headers-$(uname -r)"
$ sudo apt-get install -y dkms
$ git clone https://github.com/DIGImend/digimend-kernel-drivers.git
$ cd digimend-kernel-drivers
$ make
$ sudo make install
$ sudo modprobe -r hid-kye hid-uclogic hid-polostar hid-viewsonic
  • Reconnect the tablet.
  • Run the "Tablet Wacom Finder" in KDE and configure the table.
  • Restart the computer.
In Xournal++, configure the buttons of the pen. Then check in the configuration:
  • Edit > Preferences > Input System > Options > Merge button events with stylus tip events > [checked]

Wednesday, July 29, 2020

One screen/Dual screen

I bought a second monitor

In order to create an icon that tells linux to use one or two monitors I did the following:

In the System Settings I adjusted the configuration that I wanted for one monitor. Then in the console I wrote:

$ autorandr --save solo-pantalla-lg

then I created an icon with the command:

$ autorandr --load solo-pantalla-lg

Repeat in order to activate both monitors:

$ autorandr --save doble-pantalla
$ autorandr --load doble-pantalla


Saturday, February 1, 2020

USB WIFI Antenna RTL8812AU 802.11n WLAN Adapter

In order to make my "USB WIFI Antenna RTL8812AU 802.11n WLAN Adapter" work under Linux Mint 17.3, and Kubuntu 19.10 I had to install its drivers.

Just do the following:

Check if it is recognized:

(base) daalvarez@heimdall:~ > lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0458:0186 KYE Systems Corp. (Mouse Systems)
Bus 001 Device 003: ID 045e:00db Microsoft Corp. Natural Ergonomic Keyboard 4000 V1.0
Bus 001 Device 002: ID 0bda:8812 Realtek Semiconductor Corp. RTL8812AU 802.11a/b/g/n/ac WLAN Adapter
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


Then download the source code of the driver and compile it:

git clone https://github.com/gnab/rtl8812au.git

Follow the steps in the README.md including the DKMS commands, so that it automatically adapts when there is a linux kernel update.



Finally, reboot the computer.

Friday, April 6, 2018

Meld in Linux Mint 18.2 shows text in Chinese

I solved it writing in .bashrc:

# estas dos lineas son para que el meld funcione bien
export GIO_EXTRA_MODULES=/usr/lib/x86_64-linux-gnu/gio/modules/
gsettings set org.gnome.meld detect-encodings "['iso8859-15','utf8']"

Tuesday, July 4, 2017

Installing Linux Mint 18.2

Firefox 52+ does not work with ALSA, therefore you must install PulseAudio:

sudo apt install pulseaudio pavucontrol

and then activate my bose speakers using the PulseAudio Volume Control from the main menu.


Install the following libraries (sudo apt-get install):
qml-module-org-kde-kholidays  (this is for the holidays in the calendar)
gnome-themes-standard          (prevents warning with wxmaxima)
plasma-widget-cwp
plasma-widget-weatherforecast (widget weather forecast... cities)


Otros programas a installar
lha
rpm
rsibreak (workrave does not work)
texstudio (descargar desde página oficial)
google earth (descargar desde página oficial)
acrobat reader (.deb)

Después de instalar MATLAB, instale
matlab-support


Login Manager (greeter)
sddm is the default login manager in Linux Mint 18.2
It is really ugly, and I really like mdm, the default in LM 17.3
Therefore, install mdm and select it as the login manager
Remove sddm, sddm-theme*, kde-config-sddm


In order to remove the
[FAILED] Failed to start braille device support
error, remove brltty