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