花粉症(花粉过敏) – hay fever(allergy to pollen)

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顾名思义花粉症是因对花粉过敏引起的症状，是“过敏体质”的患者反复接触致敏花粉后，由机体免疫系统产生反应从而导致的一系列临床症状。主要表现在鼻、眼、咽部及支气管。典型症状为打喷嚏、流鼻涕、鼻痒和鼻塞，出现眼睛痒、流泪、眼红和灼热感，咽部会感到瘙痒、咳嗽，部分患者合并支气管哮喘、过敏性皮炎等疾病。症状的出现与花粉的地域和播散季节相关。

花粉过敏主要发生在春季，也会延续到夏季。

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Acer Laptop has magic in BIOS settings

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Got a Acer ConceptD 7 Ezel CC715-71P to install Linux and test touch screen on it. After booting from Ubuntu 23.10 USB, the installer told me that I need to deal with the Intel RST settings. Reboot, F2, enter the BIOS setup, but I didn’t find any option related.

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Play Linux vms on M3 Max

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Yeah, got a new work laptop recently, MacBook Pro 16″, M3 Max/36GB/1TB. But Asahi Linux is not ready for M3 yet.

And I have VMware Fusion, then I tried a few linux distributions with arm64/aarch64 support.

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游泳比赛义务劳动

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Asker Open – 2024

主场作战，俩娃全都派出。

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How to run ARM64(aarch64) Qt auto tests on x86_64

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Assume you have a host(x86_64) build of qtbase, like following:

cd ~/qt
git clone git://code.qt.io/qt/qtbase.git
mkdir qtbase-build
cd qtbase-build
../qtbase/configure -developer-build -opensource -confirm-license -nomake examples -nomake tests -verbose
cmake --build . --parallel -j8

cd ~/qt

git clone git://code.qt.io/qt/qtbase.git

mkdir qtbase-build

cd qtbase-build

../qtbase/configure -developer-build -opensource -confirm-license -nomake examples -nomake tests -verbose

cmake --build . --parallel -j8

Some extra work to setup system:

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Build Qt dev/5.15/5.12/4.8 on Ubuntu 23.10

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Install Ubuntu 23.10, for me, it’s an VM via VMware Fusion 13.5.0 on MacBook Pro 2019.

Install some needed packages,

sudo apt install -y zsh build-essential perl python3 git
sudo snap install cmake --classic
sudo apt install ninja-build
sudo apt-get build-dep qtbase-opensource-src
sudo apt-get install libxcb-xinerama0-dev 
sudo apt-get install '^libxcb.*-dev' libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev libxkbcommon-dev libxkbcommon-x11-dev
sudo apt-get install libdbus-1-dev libglib2.0-dev

sudo apt install -y zsh build-essential perl python3 git

sudo snap install cmake --classic

sudo apt install ninja-build

sudo apt-get build-dep qtbase-opensource-src

sudo apt-get install libxcb-xinerama0-dev

sudo apt-get install '^libxcb.*-dev' libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev libxkbcommon-dev libxkbcommon-x11-dev

sudo apt-get install libdbus-1-dev libglib2.0-dev

Default gcc/g++ is 13.2.0.

Add following in env:

export MAKEFLAGS='--jobs=8'
export CMAKE_GENERATOR=Ninja

export MAKEFLAGS='--jobs=8'

export CMAKE_GENERATOR=Ninja

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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.