Note for fixing network setup in vm

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I normally run several linux vms in VMware Fusion on MacBook Pro 2019. Recently during a trip, the system stuck. I forced a shutdown and reboot. Then I lost network in a Ubuntu 23.04 vm, there is no ethernet interfaces in Network section in Settings(GNOME), and there is no related icon in top-right corner.

I googled a few times, I found one article helped me. Something is wrong in this file:

sudo cat /var/lib/NetworkManager/NetworkManager.state
[main]
NetworkingEnabled=false
WirelessEnabled=true
WWANEnabled=true

sudo cat /var/lib/NetworkManager/NetworkManager.state

[main]

NetworkingEnabled=false

WirelessEnabled=true

WWANEnabled=true

Anyway, I just followed the steps in the article, it works for me.

sudo service NetworkManager stop
sudo rm /var/lib/NetworkManager/NetworkManager.state
sudo service NetworkManager start

sudo service NetworkManager stop

sudo rm /var/lib/NetworkManager/NetworkManager.state

sudo service NetworkManager start

Play Qt dev in Flatpak world

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XDG Desktop Portal and Flatpak are more and more in used. If you are using Qt, Flatpak KDE runtime is a good place to start, install pre-built Qt binaries in Flatpak world. But it’s normally for the released versions.

If you want to play with the edge of Qt, for example, dev branch, you can try following steps:

git clone https://github.com/liangqi/flatpak-kde-runtime.git
cd flatpak-kde-runtime
make remotes
make check
make org.kde.Sdk.app
cd repo
flatpak remote-add --user --no-gpg-verify liang-flatpak file://$(pwd)
flatpak install --user liang-flatpak org.kde.Platform
flatpak install --user liang-flatpak org.kde.Sdk

git clone https://github.com/liangqi/flatpak-kde-runtime.git

cd flatpak-kde-runtime

make remotes

make check

make org.kde.Sdk.app

cd repo

flatpak remote-add --user --no-gpg-verify liang-flatpak file://$(pwd)

flatpak install --user liang-flatpak org.kde.Platform

flatpak install --user liang-flatpak org.kde.Sdk

And here is an example at io.qt.examples.dropsite.yaml

git clone https://github.com/liangqi/dropsite-flatpak.git
cd dropsite-flatpak
flatpak-builder --user --install --force-clean build-dir io.qt.examples.dropsite.yaml

git clone https://github.com/liangqi/dropsite-flatpak.git

cd dropsite-flatpak

flatpak-builder --user --install --force-clean build-dir io.qt.examples.dropsite.yaml

Thanks bbhtt for the help in matrix.to: Packaging KDE Apps in Flatpaks channel.

Install Vim 9.0 and enable Qml syntax

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(Ubuntu 22.04/23.04)

$ sudo add-apt-repository ppa:jonathonf/vim
$ sudo apt install vim

$ sudo add-apt-repository ppa:jonathonf/vim

$ sudo apt install vim

Reference: How to Install Latest Vim 9.0 on Ubuntu Based Linux Distributions

Configure vim to enable Qml syntax

$ cd ~
$ mkdir .vim
$ cd .vim
$ mkdir ftplugin indent syntax
$ wget -O ftplugin/qml.vim https://raw.githubusercontent.com/peterhoeg/vim-qml/master/ftplugin/qml.vim
$ wget -O indent/qml.vim https://raw.githubusercontent.com/peterhoeg/vim-qml/master/indent/qml.vim
$ wget -O syntax/qml.vim https://raw.githubusercontent.com/peterhoeg/vim-qml/master/syntax/qml.vim
$ vi ~/.vimrc

$ cd ~

$ mkdir .vim

$ cd .vim

$ mkdir ftplugin indent syntax

$ wget -O ftplugin/qml.vim https://raw.githubusercontent.com/peterhoeg/vim-qml/master/ftplugin/qml.vim

$ wget -O indent/qml.vim https://raw.githubusercontent.com/peterhoeg/vim-qml/master/indent/qml.vim

$ wget -O syntax/qml.vim https://raw.githubusercontent.com/peterhoeg/vim-qml/master/syntax/qml.vim

$ vi ~/.vimrc

Add the following line:

autocmd BufRead,BufNewFile *.qml setfiletype qml

1 2	autocmd BufRead,BufNewFile *.qml setfiletype qml

Configure nvim and nvim-qt

$ cd ~/.config
$ ln -s ~/.vim ./nvim
$ cd nvim
$ ln -s ~/.vimrc ./init.vim

$ cd ~/.config

$ ln -s ~/.vim ./nvim

$ cd nvim

$ ln -s ~/.vimrc ./init.vim

Reference: How to share config between Vim and Neovim

Help to test KDE/Plasma 6 Wayland

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KDE developers are working hard on Plasma 6 Wayland. See also KDE Plasma 6 Development Progressing Well, Plasma 6 Beta Possible In A Few Months and KDE Plasma 6 Wayland Session: “It’s Been Working Great!”.

For example, you can install Neon Developer Edition via KDE neon: Live Images. After installation, you can upgrade it to KDE/Plasma 6,

sudo apt update sudo apt install neon-settings-2 sudo apt full-upgrade

If you find any bug, please help to report to KDE bugtracker. Here is my first ticket recently.

View heart rate for pool swimming with Workout app on Apple Watch

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Normally you can see the heart rate information for running/hiking/skiing. But it’s not the case by default for pool swimming with Workout app.

On Apple Watch, Workout, touch the “…” button on Pool Swim(OPEN GOAL) section, click the pencil button on the top-right corner of “Open” section, Workout Views, Edit Views, enable the “Include” of “METRICS 2” for heart rate information and “HEART RATE ZONES” if needed. You can also “Reorder” the views, the button for it at the bottom of the page.

Reference:
* Apple: Use the Workout app on your Apple Watch
* Polar: HOW TO CALCULATE YOUR MAXIMUM HEART RATE
* Polar: HEART RATE ZONES | THE BASICS