Update NanoKVM docs: add EDID and password reset info.

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

@@ -15,7 +15,7 @@ keywords: NanoKVM, Remote desktop, Lichee, PiKVM, RISCV, tool
 ### About Password
 
    1. After updating to version 2.1.5, if you haven't set a web password before, you will be prompted to change the password upon logging in. When you change the password, the backend `root` password will also be synchronized to the web password. If you have already changed the web password before, the backend `root` password will not be changed automatically. You can modify it using `passwd` in the terminal or click "Reset Password" in the web settings.
-   2. If the application version is greater than 2.1.5 and you forget the password, you can press the `BOOT` button on the device for more than 10 seconds (the BOOT button for the NanoKVM-Cube is located next to the USB-HID interface, while the PCIe version can be found on the panel. Older versions of the NanoKVM Full may not have a hole in the corresponding location and require disassembly).
+   2. If the application version is greater than 2.1.5 and you forget the password, you can press the `BOOT` button on the device for more than 10 seconds (the BOOT button for the NanoKVM-Cube is located next to the USB-HID interface, while the PCIe version can be found on the panel. Older versions of the NanoKVM Full may not have a hole in the corresponding location and require disassembly). For detailed instructions, please refer to [Reset Password](https://wiki.sipeed.com/hardware/en/kvm/NanoKVM/reset.html).
    3. If holding down the button does not reset the password, it may be because the application version is less than 2.1.5. Please refer to [here](https://wiki.sipeed.com/hardware/en/kvm/NanoKVM/system/flashing.html) to reflash the image. Note that reflashing the image will erase all configuration information.
 
 ### HID Keyboard and Mouse Not Working

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

@@ -0,0 +1,24 @@
+---
+title: How to Reset Password for NanoKVM
+keywords: NanoKVM, Remote desktop, RISCV, tool
+---
+
+> Document Scope
+> Applicable to NanoKVM Cube/Lite/PCIe series
+> Password reset feature is available in APP version 2.1.5 and above
+
+## When to Reset Password
+
+Use the password reset function when you forget the login password for the web management interface and cannot retrieve it through other means.
+
+## How to Reset Password
+
+With the device powered on, press and hold the `BOOT` button (next to the USB-HID interface for Cube version, on the panel for PCIe version) for **more than 10 seconds**. The device will automatically reset the password.
+
+## Default Password After Reset
+
+After password reset, the default credentials for the web management interface are:
+- **Username**: `admin`
+- **Password**: `admin`
+
+> **Note**: Resetting the password only affects the web management interface login password, not the SSH login password. If you need to modify the SSH password, use the `passwd` command after logging in.

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

@@ -48,10 +48,12 @@ When the host has multiple displays, it generally prioritizes the built-in scree
 
 DP adapters come in two types: passive and active. Passive DP adapters are low-cost but may pose compatibility risks, manifesting as resolution lists not matching EDID, host wake-up failing to activate the screen, etc. Using the reset HDMI function can wake up the screen.
 
-### Missing Resolution List, Inconsistent with EDID
+### Missing Resolution List, Inconsistent with Configured EDID
 
 The resolution list in the host display settings is determined by the host, EDID, (potentially existing) loop-out screen, and video adapter collectively. You can switch between different EDIDs on the web page to achieve the most reasonable compatibility.
 
+> **Note**: In the hardware design of NanoKVM-Pro, HDMI first passes through a splitter chip before entering the HDMI capture chip. Due to chip limitations, writing is only possible to the capture chip. When a loop-out display is connected, the splitter chip automatically combines two EDIDs (the EDID of the capture chip and the EDID of the loop-out display). This process cannot be controlled by the main control chip, which is why the actual EDID used may differ from the configured EDID.
+
 ### HDMI Icon Lit on NanoKVM Screen but No Video Displayed in Web Interface
 
 NanoKVM-Pro supports video capture and loop-out functions. When only capturing video, it reports a maximum resolution of 4K30FPS to the host by default. When a loop-out display is connected, it reports a common resolution list.

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

@@ -14,7 +14,7 @@ keywords: NanoKVM, Remote desktop, Lichee, PiKVM, RISCV, tool
 ### 关于密码
 
   1. 更新至 2.1.5 版本应用后，若之前没有设置过网页密码，登录后会提示修改密码，修改密码时，后台的`root`密码也会同步修改成网页密码，若之前已经修改过网页密码，后台`root`密码不会主动修改，请在终端使用`passwd`或网页设置中点击重置密码以修改;
-  2. 应用版本大于 2.1.5 时，若忘记密码，可以按下机身`BOOT`按键10s以上（NanoKVM-Cube的BOOT按键位于USB-HID接口右边，PCIe版本BOOT按键可在面板上找到，较老版本的NanoKVM Full可能没有在对应位置开孔，需要拆机操作）
+  2. 应用版本大于 2.1.5 时，若忘记密码，可以按下机身`BOOT`按键10s以上（NanoKVM-Cube的BOOT按键位于USB-HID接口右边，PCIe版本BOOT按键可在面板上找到，较老版本的NanoKVM Full可能没有在对应位置开孔，需要拆机操作），详细操作指引请参考[重置密码](https://wiki.sipeed.com/hardware/zh/kvm/NanoKVM/reset.html)
   3. 若长按无法重置密码，可能是应用版本小于 2.1.5 ，参考[这里](https://wiki.sipeed.com/hardware/zh/kvm/NanoKVM/system/flashing.html)重新烧录镜像，注意，重烧镜像后会丢失所有配置信息。
 
 ### HID键鼠不工作

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

@@ -0,0 +1,26 @@
+---
+title: NanoKVM 如何重置密码
+keywords: NanoKVM, Remote desktop, RISCV, tool
+---
+
+> 文档适用范围
+> 适用于NanoKVM Cube/Lite/PCIe系列
+> 重置密码的功能在APP版本2.1.5版本及以上
+
+## 何时需要重置密码
+
+当您忘记网页管理界面的登录密码，且无法通过其他方式找回时，可以使用重置密码功能。
+
+## 如何重置密码
+
+在设备开机状态下，长按设备上的 `BOOT` 按键（Cube 版本在 USB-HID 接口旁边，PCIe 版本在面板上）持续 **10 秒以上**，设备将自动重置密码。
+
+## 重置后的默认密码
+
+密码重置后，网页管理界面的默认账号密码为：
+- **用户名**: `admin`
+- **密码**: `admin`
+
+> **注意**：重置密码仅影响网页管理界面的登录密码，不会影响 SSH 登录密码。如果需要修改 SSH 密码，请登录后使用 `passwd` 命令进行修改。
+
+

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

@@ -50,9 +50,11 @@ NanoKVM Pro 会不定期更新应用，一些问题可能在新的应用中已
 
 DP转接器有被动和主动两种，被动DP转接器价格低廉，但可能存在兼容性风险，表现为分辨率列表与EDID不一致，主机唤醒无法启动屏幕等，使用重置HDMI功能可唤醒屏幕
 
-### 分辨率列表缺失，和EDID不符
+### 分辨率列表缺失，和设置EDID不符
 
-主机显示设置中的分辨率列表由主机、EDID和（可能存在的）环出屏幕、视频转接器共同决定，可以在网页切换不同的EDID来实现最合理的兼容性
+主机显示设置中的分辨率列表由主机、EDID和（可能存在的）环出屏幕、视频转接器共同决定，可以在网页切换不同的EDID来实现最合理的兼容性。
+
+> **注**：NanoKVM-Pro 在硬件设计上，HDMI 先经过一分二芯片，再进入 HDMI 采集芯片。但受限于芯片功能，只能对采集芯片进行写入。当连接环出显示器时，一分二芯片将自动组合两个 EDID（采集芯片的 EDID 和环出显示器的 EDID），此过程无法由主控芯片干预，所以会出现实际使用的 EDID 与设置的 EDID 不同的现象。
 
 ### NanoKVM 小屏幕上HDMI图表亮起但无法在网页中看到画面