Update NanoKVM Docs

docs/hardware/en/kvm/NanoKVM/faq.md

@@ -68,6 +68,12 @@ The STA LED indicates the operating status of the NanoKVM. When functioning prop
    > If `VIDevFPS` is not 0 and `VIFPS` is 0, it indicates that NanoKVM is not correctly configured for HDMI parameters. The Cube can replug the HDMI to auto-detect, while PCIe can click `Reset HDMI` under `Video` to auto-detect.
    > Check if `VIInImgWidth` and `VIInImgHeight` match the actual HDMI resolution. If they are different, it means NanoKVM did not auto-detect the correct HDMI parameters. Manually configure the resolution parameters as described in point 4.
 
+### No Display After Host Wakes from Sleep
+
+1. Check if you are using a cheap DP to HDMI (passive adapter). These types of adapters lack a proper wake mechanism and cannot notify the NanoKVM that the display has been restored.
+2. For PCIe versions, you can click the "Reset HDMI" button to forcefully retrieve the display.
+3. The Cube/Lite versions lack a reset function; please switch to an active DP adapter.
+
 ### Serious screen delay in internal network environment
 
 1. Try replacing the switch or power supply

docs/hardware/en/kvm/NanoKVM_USB/faq.md

@@ -17,6 +17,12 @@ keywords: NanoKVM-USB, Lichee, PiKVM, RISCV, tool
 
 + Some Linux distributions come with `brltty`, a Braille display tool that occupies the `/dev/ttyUSB0` serial port, causing the webpage to be unable to detect it. If you are not using `brltty`, it is recommended to uninstall it with `sudo apt remove brltty`.
 
+### Poor Video Quality
+
++ First, check if you're using a USB 2.0 cable/HOST interface. When the resolution is high, USB 2.0 may not provide sufficient bandwidth, which can lower the video quality. It is recommended to use a USB 3.0 cable.
++ At 2K resolution, the video quality may decrease due to the chip's encoding capability. Please switch to 1080P.
++ If the target device is connected to a Windows host, go to System Settings > Display Settings > Advanced Display Settings, and change to 1080P60 in the "List all modes" section. Also, check if the "Desktop Resolution" and "Active Signal Resolution" are consistent.
+
 ### Unable to Open NanoKVM-USB Corresponding Serial Device After Opening Web Page
 
 + This may be due to other programs occupying the serial port. Please ensure it is not in use before trying again.

docs/hardware/zh/kvm/NanoKVM/faq.md

@@ -66,6 +66,12 @@ keywords: NanoKVM, Remote desktop, Lichee, PiKVM, RISCV, tool
   > 若 `VIDevFPS` 非0 、`VIFPS` 为0 ，则认为NanoKVM没有正确配置HDMI参数，Cube可以重新插拔HDMI重新自动获取，PCIe可点击`视频`下`重置HDMI`自动获取
   > 查看 `VIInImgWidth` 和 `VIInImgHeight`与实际HDMI分辨率是否一致，若不同，则认为NanoKVM没有自动获取到正确的HDMI参数，按照第4点手动配置分辨率参数
 
+### 主机休眠唤醒后无画面
+
+  1. 检查是否使用廉价的DP转HDMI（无源转换头）；这类转换接口没有完善的唤醒机制，无法通知 NanoKVM 画面已经恢复
+  2. PCIe 版本可以点击重置HDMI按钮来强制重新获取画面
+  3. Cube/Lite版本缺少重置功能，请更换有源DP转换接头
+
 ### 内网环境下画面延迟异常严重
 
   1. 尝试更换交换机或电源

docs/hardware/zh/kvm/NanoKVM/system/flashing.md

@@ -18,7 +18,7 @@ update:
     - Full 版本自带一张 32G 的 SD 卡，需要拆开外壳将其取出；
     - Lite 版本需要自己准备一张 8G 以上的 SD 卡。
 
-1. 前往 [Github](https://github.com/sipeed/NanoKVM/releases) 下载最新版本镜像。
+1. 前往 [Github](https://github.com/sipeed/NanoKVM/releases/latest) 下载最新版本镜像。
 
 1. 安装烧录软件，推荐使用 [Etcher](https://etcher.balena.io)。
 

docs/hardware/zh/kvm/NanoKVM_Pro/atx_start.md

@@ -28,7 +28,7 @@ NanoKVM-ATX包含：
 
 ## 接口定义
 
-![](./../../../assets/NanoKVM/pro/start/Desk-Interface.png)
+![](./../../../assets/NanoKVM/pro/start/ATX-Interface.jpg)
 
 ## 接线
 

docs/hardware/zh/kvm/NanoKVM_Pro/extended.md

@@ -88,3 +88,23 @@ stty -F /dev/ttyS1 115200
 # 发送十六进制数据 0x11, 0x22, 0x33
 echo -n -e '\x11\x22\x33' > /dev/ttyS1
 ```
+
+## 如何修改EDID
+
+EDID（扩展显示识别数据）是显示设备向主机提供的一组数据，包括设备信息、分辨率帧率列表、颜色特性、音频能力等。主机接受到 EDID 后按需调整显示器的设置
+
+NanoKVM Pro 支持修改虚拟显示屏暴露的EDID，您可以克隆显示器的EDID或编写自己的EDID，来达到特殊的屏幕比例、刷新率或颜色特征
+
+> 修改EDID后可能存在无法正常显示的风险，请谨慎修改。如果出现异常，请恢复默认EDID
+
+写入方式：
+
+```shell
+# 1. 准备edid文件，一般大小是256Byte，scp 到系统中
+ls -l /root/customize.bin
+# -rw-r--r-- 1 1000 1000 256 Aug 19 14:44 /root/customize.bin
+# 2. 写入EDID
+cat /root/customize.bin > /proc/lt6911_info/edid
+# 3. 恢复默认EDID：
+cat /kvmcomm/edid/e18.bin > /proc/lt6911_info/edid
+```

docs/hardware/zh/kvm/NanoKVM_Pro/faq.md

@@ -23,7 +23,7 @@ NanoKVM Pro 支持通过 USB 烧录镜像的方式来恢复或更新系统。
 #### 烧录步骤
 
 1. **下载镜像与烧录工具**
-- 访问 [NanoKVM Pro 发布页面](https://github.com/sipeed/NanoKVM-Pro/releases) 下载最新镜像文件
+- 访问 [NanoKVM Pro 发布页面](https://github.com/sipeed/NanoKVM-Pro/releases/latest) 下载最新镜像文件
 - 下载并安装烧录工具 [balenaEtcher](https://etcher.balena.io/)
 
 2. **进入烧录模式**

docs/hardware/zh/kvm/NanoKVM_Pro/introduction.md

@@ -65,7 +65,7 @@ IP-KVM系列产品是远程桌面的硬件外挂，通过HDMI捕捉画面，通
 
 ## NanoKVM-PCIe 资料
 
-+ [NanoKVM Pro 镜像下载 (待更新)]()
++ [NanoKVM Pro 镜像下载 (待更新)](https://github.com/sipeed/NanoKVM-Pro/releases/latest)
 + [ATX上手指南](https://wiki.sipeed.com/hardware/zh/kvm/NanoKVM_Pro/atx_start.html)
 + [高级应用](https://wiki.sipeed.com/hardware/zh/kvm/NanoKVM_Pro/extended.html)
 + [常见问题](https://wiki.sipeed.com/hardware/zh/kvm/NanoKVM_Pro/faq.html)
@@ -80,6 +80,7 @@ IP-KVM系列产品是远程桌面的硬件外挂，通过HDMI捕捉画面，通
 
 如果您在使用过程中有任何问题或建议，请通过以下渠道和我们反馈：
 
++ [Github issues](https://github.com/sipeed/NanoKVM-Pro/issues)
 + [MaixHub 论坛](https://maixhub.com/discussion/nanokvm)
 + QQ 交流群: 703230713
 

docs/hardware/zh/kvm/NanoKVM_Pro/ws2812.md

@@ -0,0 +1,3 @@
+# 屏幕色彩扩展灯带
+
+敬请期待

docs/hardware/zh/kvm/NanoKVM_USB/faq.md

@@ -26,6 +26,12 @@ keywords: NanoKVM-USB, Lichee, PiKVM, RISCV, tool
 
 ## 视频问题
 
+### 视频画质差
+
++ 首先检查是否使用了 USB2.0 的线缆/HOST接口，当分辨率较大时 USB2.0 不足以提供充足的传输带宽，会被动降低画质，建议选用 USB3.0的线缆
++ 2K分辨率下首先于芯片编码能力，画质会下降，请切换为1080P使用
++ 如果 Target 连接的是 Windws主机，请前往系统设置-显示设置-高级显示设置-列出所有模式中更改为 1080P60，并检查`桌面分辨率`和`活动信号分辨率是否一致`
+
 ### DP-HDMI转接器
 
 + 部分无源DP转HDMI转换器内部电路仅做电平转换，对NanoKVM-USB兼容性较差，表现为视频信号从无到有（比如从睡眠唤醒时）NanoKVM-USB仍显示然黑屏，需要手动拔插HDMI。

docs/hardware/zh/sidebar.yaml

@@ -534,6 +534,8 @@ items:
             file: kvm/NanoKVM_Pro/desk_start.md
         -   label: 高级应用
             file: kvm/NanoKVM_Pro/extended.md
+        -   label: 屏幕色彩扩展灯带
+            file: kvm/NanoKVM_Pro/ws2812.md
         -   label: FAQ
             file: kvm/NanoKVM_Pro/faq.md
 -   label: Cluster