171 lines
3.4 KiB
Markdown
171 lines
3.4 KiB
Markdown
# 技术点记录
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### ubuntu 24 开机慢优化
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```bash
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# 在 systemd-networkd-wait-online.service Service 加入 TImeoutStartSec=2sec
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sudo vim /etc/systemd/system/network-online.target.wants/systemd-networkd-wait-online.service
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```
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## linux 下播放音频
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```bash
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sudo apt install libasound2-dev alsa-utils
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```
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## linux 下播放视频
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```bash
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sudo apt install libvlc-dev vlc
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```
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## 显示安装
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```bash
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sudo apt install xorg
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```
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### 当前用户加入播放音频与视频的组中
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```bash
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sudo usermod -aG audio,video,dialout $USER
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```
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### 关闭背光
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```bash
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# xorg 环境，关闭背光
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xset dpms force off
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# xorg 环境，重新打开背光
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xset dpms force on
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```
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### 注册为 service ,并开机启动
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```bash
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sudo cp /script/game-driver.service /etc/systemd/system/
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sudo systemctl enable game-driver
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sudo systemctl start game-driver
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```
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## 编译 arm64 架构
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```bash
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CC=aarch64-linux-gnu-gcc CGO_ENABLED=1 GOOS=linux GOARCH=arm64 go build -o game-driver-arm64 .
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```
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## J8引脚
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```bash
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J8:
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3V3 (1) (2) 5V
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GPIO2 (3) (4) 5V
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GPIO3 (5) (6) GND
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GPIO4 (7) (8) GPIO14
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GND (9) (10) GPIO15
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GPIO17 (11) (12) GPIO18
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GPIO27 (13) (14) GND
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GPIO22 (15) (16) GPIO23
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3V3 (17) (18) GPIO24
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GPIO10 (19) (20) GND
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GPIO9 (21) (22) GPIO25
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GPIO11 (23) (24) GPIO8
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GND (25) (26) GPIO7
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GPIO0 (27) (28) GPIO1
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GPIO5 (29) (30) GND
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GPIO6 (31) (32) GPIO12
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GPIO13 (33) (34) GND
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GPIO19 (35) (36) GPIO16
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GPIO26 (37) (38) GPIO20
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GND (39) (40) GPIO21
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```
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## 极简桌面环境并自动登录
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### 安装 xorg i3
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```bash
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sudo apt install xorg i3-wm
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```
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### 自动启动 Xorg 和窗口管理器
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编辑 `.bashrc`文件，在文件的末尾添加以下行：
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```bash
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if [ -z "$DISPLAY" ] && [ "$(tty)" = "/dev/tty1" ]; then
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startx
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fi
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```
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这会在你登录后，自动启动 Xorg 和窗口管理器。该脚本检查当前是否在 tty1 控制台（默认终端）上
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### 自动登录
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编辑 `/etc/systemd/system/getty.target.wants/getty@tty1.service` 文件，将 `ExecStart` 行修改为：
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```bash
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ExecStart=-/sbin/agetty --autologin <your_username> --noclear %I $TERM
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```
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其中：
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- <your_username>：替换为你想自动登录的用户名。
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### 禁用 i3bar 状态栏
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编辑 `~/.config/i3/config`，将如下行注释掉：
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```bash
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# bar {
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# status_command i3status
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# }
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```
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如果没有 `~/.config/i3/config` 文件，需要重启系统，进入 i3 后，根据提示创建默认的配置文件
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### 配置 i3
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安装 `unclutter`：
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```bash
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sudo apt install unclutter
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```
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编辑 `~/.config/i3/config`，添加如下行：
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```bash
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exec --no-startup-id unclutter -root # 隐藏鼠标
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exec --no-startup-id xset dpms 0 0 0 # 关闭屏幕自动关闭
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exec --no-startup-id xset s off # 关闭屏幕保护
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```
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不使用 `xset -dpms` 来禁用屏幕自动关闭，因为当使用 `xset dpms force off` 或 `xset dpms force on` 时，会导致禁用失效
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### 安装中文字体和 emoji 字体
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```bash
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sudo apt install fonts-noto-cjk fonts-noto-color-emoji
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```
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## 安装浏览器作为默认启动页面
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### 安装浏览器
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```bash
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sudo add-apt-repository ppa:xtradeb/apps
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sudo apt install ungoogled-chromium
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```
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### 设置默认启动页面
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编辑 `~/.config/i3/config`，添加如下行：
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```bash
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exec --no-startup-id ungoogled-chromium --kiosk --disable-extensions --disable-translate --app=<your_url>
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```
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### 设置系统默认音量
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`alsamixer` `sudo alsactl store`
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