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从命令行确定 HDMI 控制器

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从命令行确定 HDMI 控制器

XBMC（或者更确切地说是 libcec）仅在几个 HDMI 控制器中支持 CEC。

我想要一种方法来从命令行找出机器上安装了哪个 HDMI / CEC 控制器。

这是我现在正在查看的示例机器，但我正在寻找适用于任何 Linux 机器的通用解决方案：

System Information
        Manufacturer: ASUSTeK Computer INC.
        Product Name: EB1012P

也许有一个实用程序可以探测 HDMI 控制器以了解其功能？

这是lspci：

$ lspci
00:00.0 Host bridge: Intel Corporation Atom Processor D4xx/D5xx/N4xx/N5xx DMI Bridge (rev 02)
00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 2 (rev 02)
00:1c.2 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 3 (rev 02)
00:1c.3 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 4 (rev 02)
00:1d.0 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #1 (rev 02)
00:1d.1 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #2 (rev 02)
00:1d.2 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #3 (rev 02)
00:1d.3 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #4 (rev 02)
00:1d.7 USB controller: Intel Corporation NM10/ICH7 Family USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation NM10 Family LPC Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation NM10/ICH7 Family SATA Controller [AHCI mode] (rev 02)
00:1f.3 SMBus: Intel Corporation NM10/ICH7 Family SMBus Controller (rev 02)
02:00.0 VGA compatible controller: NVIDIA Corporation GT218 [ION] (rev a2)
02:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1)
03:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
05:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 03)

答案1

cec-客户端-l

  1. 安装（debian/ubuntu）

    apt-get install cec-utils libcec-dev

  2. 跑步

    cec-client -l

    这将列出系统上的所有 CEC 设备。如果没有 CEC 支持设备，cec-client -l将返回Found devices: NONE，这是正确的。

    请记住，大多数 PC 显卡（Nvidia、AMD）不支持 CEC（参见 PS2、PS3）。已知（有明确文档/规格）支持 CEC 的 GPU 是视频核心，在 Raspberry Pi 中找到。

    PS1：libcec-dev需要在 Ubuntu 12.04 上才能cec-client正常运行。

    PS2：根据在线论坛帖子，Nvidia（GF、GT(ION)、GTX）从未声称支持 CEC，也没有否认。Nvidia 网站没有关于 CEC 的信息。它基本上没有提到任何与此有关的事情。我只是认为这是“不”。

    PS3：少数AMD PDF文档提到CEC，明确指出不支持。

xrandr --prop（这可能有帮助，我的视频卡没有 cec 可以验证）

以下是示例输出

#xrandr --prop
Screen 0: minimum 320 x 200, current 2560 x 1024, maximum 8192 x 8192
VGA1 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 376mm x 301mm
    EDID:
        00ffffffffffff0010ac194050435341
        281101030e261e78eeee95a3544c9926
        0f5054a54b00714f8180010101010101
        010101010101302a009851002a403070
        1300782d1100001e000000ff00434333
        3838374136415343500a000000fc0044
        454c4c20313930374650560a000000fd
        00384c1e510e000a20202020202000d9
   1280x1024      60.0*+   75.0  
   1152x864       75.0  
   1024x768       75.1     60.0  
   800x600        75.0     60.3  
   640x480        75.0     60.0  
   720x400        70.1  
HDMI1 disconnected (normal left inverted right x axis y axis)
    Broadcast RGB:  Full
        supported: Full         Limited 16:2
    audio:  auto
        supported: off          auto         on          
DP1 disconnected (normal left inverted right x axis y axis)
    Broadcast RGB:  Full
        supported: Full         Limited 16:2
    audio:  auto
        supported: off          auto         on          
HDMI2 connected 1280x1024+1280+0 (normal left inverted right x axis y axis) 376mm x 301mm
    EDID:
        00ffffffffffff0010ac204045375241
        2811010380261e78eeee95a3544c9926
        0f5054a54b00714f8180010101010101
        010101010101302a009851002a403070
        1300782d1100001e000000ff00434333
        3838374136415237450a000000fc0044
        454c4c20313930374650560a000000fd
        00384c1e510e000a2020202020200090
    Broadcast RGB:  Full
        supported: Full         Limited 16:2
    audio:  auto
        supported: off          auto         on          
   1280x1024      60.0*+   75.0  
   1152x864       75.0  
   1024x768       75.1     60.0  
   800x600        75.0     60.3  
   640x480        75.0     60.0  
   720x400        70.1  
DP2 disconnected (normal left inverted right x axis y axis)
    Broadcast RGB:  Full
        supported: Full         Limited 16:2
    audio:  auto
        supported: off          auto         on

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