HDMIDVI 显示器热插拔与检测原理（HPD） 转载

3. **DVI/HDMI热插拔检测（Hot-plug）**： - 推荐使用1千欧姆的电阻来实现热插拔检测。 - HDMI HOTPLUG应使用具有5V耐压能力的Open Drain GPIO，并将 ...

3. **DVI/HDMI热插拔检测（Hot-plug）**： - 推荐使用1千欧姆的电阻来实现热插拔检测。 - HDMI HOTPLUG应使用具有5V耐压能力的Open Drain GPIO，并将 ...

The hot plug detect pin is an output from the monitor. You can freely ignore the pin, the monitor does not care.

In circuit filtering is always nice but not needed. Software needs to wait until the 5V and HPA are stable. Usually ~5-10 ms should do.

A flat panel is connected to the DVI connector on the display adapter. The display adapter detects a hot-plug event and generates an interrupt.

Yes. the digital visual interface (DVI) is hot pluggable. The pin 16 specifies hot plug detection. Share. Share a link to this answer. Copy link

硬件接口， HDMI(19Pin)/DVI（16 pin）的功能是热插拔检测（HPD），这个信号将作为主机系统是否对HDMI/DVI是否发送TMDS信号的依据.

热插拔检测的作用是当显示器等数字显示器通过DVI接口与计算机主机相连或断开连接时，计算机主机能够通过HDMI/DVI的HPD引脚检测出这一事件，并做出响应。 在 ...

Hot Plug Detect or HPD is a feature of the HDMI, DisplayPort, and DVI specifications. Typically it relies on a single pin in the connector making contact ...