雷电端口不发送视频

Question

我有一个razr隐形RZ0901952E72运行ubuntu20.04 5.4.0-58-通用。当使用带有usb-c端口的macbook时，我可以使用usbc电缆运行飞利浦243V5L。我也想做同样的隐形(它有一个usb-c风格的端口，显然是一个‘雷电3’和hdmi端口的工作良好，整个演习的重点是运行两个或更多的外部屏幕)，但到目前为止，没有骰子。

没有任何连接(以及通过usbc-hdmi电缆连接到ext监视器的雷电)显示：

jeremy@jeremy-Blade:~/$ xrandr
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
HDMI-0 disconnected (normal left inverted right x axis y axis)
eDP-1-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 309mm x 174mm
   1920x1080     60.02*+  60.01    59.97    59.96    59.93  
   1680x1050     59.95    59.88  
   1600x1024     60.17  
 ...
   320x180       59.84    59.32  
DP-1-1 disconnected (normal left inverted right x axis y axis)
HDMI-1-1 disconnected (normal left inverted right x axis y axis)

当hdmi连接时，它显示：

jeremy@jeremy-Blade:~/$ xrandr
Screen 0: minimum 8 x 8, current 3840 x 1080, maximum 32767 x 32767
HDMI-0 connected primary 1920x1080+1920+0 (normal left inverted right x axis y axis) 521mm x 293mm
   1920x1080     60.00*+
...
   640x480       75.00    72.81    59.94  
eDP-1-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 309mm x 174mm
   1920x1080     60.02*+  60.01    59.97    59.96    59.93  
...
   320x180       59.84    59.32  
DP-1-1 disconnected (normal left inverted right x axis y axis)
HDMI-1-1 disconnected (normal left inverted right x axis y axis)
  1680x1050 (0x1bf) 146.250MHz -HSync +VSync
        h: width  1680 start 1784 end 1960 total 2240 skew    0 clock  65.29KHz
        v: height 1050 start 1053 end 1059 total 1089           clock  59.95Hz
  1280x1024 (0x1c3) 108.000MHz +HSync +VSync
        h: width  1280 start 1328 end 1440 total 1688 skew    0 clock  63.98KHz
        v: height 1024 start 1025 end 1028 total 1066           clock  60.02Hz
  1440x900 (0x1c1) 106.500MHz -HSync +VSync
        h: width  1440 start 1520 end 1672 total 1904 skew    0 clock  55.93KHz
        v: height  900 start  903 end  909 total  934           clock  59.89Hz
  1024x768 (0x1c6) 65.000MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock  48.36KHz
        v: height  768 start  771 end  777 total  806           clock  60.00Hz
  800x600 (0x1c8) 40.000MHz +HSync +VSync
        h: width   800 start  840 end  968 total 1056 skew    0 clock  37.88KHz
        v: height  600 start  601 end  605 total  628           clock  60.32Hz
  640x480 (0x1cb) 25.175MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock  31.47KHz
        v: height  480 start  490 end  492 total  525           clock  59.94Hz

当雷电端口也通过usbc电缆连接到ext监视器时，我再次获得相同的输出。换句话说，将usbc连接到雷电端口似乎没有任何改变。

雷电似乎是“真实的”(如果你不相信mfg技术规范的“雷电3”)

jeremy@jeremy-Blade:~/$ lsmod|grep thund
thunderbolt           167936  0
intel_wmi_thunderbolt    20480  0
wmi                    32768  2 intel_wmi_thunderbolt,mxm_wmi

为了完整起见，我还将提交：

jeremy@jeremy-Blade:~/$ lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Host Bridge/DRAM Registers (rev 07)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) (rev 07)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06)
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
00:14.0 USB controller: Intel Corporation 100 Series/C230 Series Chipset Family USB 3.0 xHCI Controller (rev 31)
00:14.2 Signal processing controller: Intel Corporation 100 Series/C230 Series Chipset Family Thermal Subsystem (rev 31)
00:15.0 Signal processing controller: Intel Corporation 100 Series/C230 Series Chipset Family Serial IO I2C Controller #0 (rev 31)
00:15.1 Signal processing controller: Intel Corporation 100 Series/C230 Series Chipset Family Serial IO I2C Controller #1 (rev 31)
00:16.0 Communication controller: Intel Corporation 100 Series/C230 Series Chipset Family MEI Controller #1 (rev 31)
00:1c.0 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #1 (rev f1)
00:1c.5 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #6 (rev f1)
00:1d.0 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #9 (rev f1)
00:1d.4 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #13 (rev f1)
00:1e.0 Signal processing controller: Intel Corporation 100 Series/C230 Series Chipset Family Serial IO UART #0 (rev 31)
00:1f.0 ISA bridge: Intel Corporation HM170 Chipset LPC/eSPI Controller (rev 31)
00:1f.2 Memory controller: Intel Corporation 100 Series/C230 Series Chipset Family Power Management Controller (rev 31)
00:1f.3 Audio device: Intel Corporation 100 Series/C230 Series Chipset Family HD Audio Controller (rev 31)
00:1f.4 SMBus: Intel Corporation 100 Series/C230 Series Chipset Family SMBus (rev 31)
01:00.0 VGA compatible controller: NVIDIA Corporation GP106M [GeForce GTX 1060 Mobile] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GP106 High Definition Audio Controller (rev a1)
3b:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 32)
3d:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM951/PM951 (rev 01)

更新后，进一步谷歌-也许我需要的是一个usb显示端口，如这，这也会给我一些更多的监视器。

Answer 1

更新后，进一步谷歌-也许我需要的是一个usb-c显示端口像这样，这也会给我一些更多的监视器。

这将不会从您的计算机上的USB端口获得视频，因为计算机不支持来自该端口的DP输出。若要将另一个显示器添加到计算机中，则需要添加另一个GPU。您指出，计算机已经有一个GPU，但GPU只提供视频到内部显示器和HDMI端口，它没有DP输出，您可以达到。GPU有可能在电路板的某个地方有一个DP连接，但是如果没有螺丝起子和焊铁，这个连接是无法访问的。如果您认为不是，那么您需要联系制造商，因为它似乎您的DP输出是坏的，并需要修理。如果USB到HDMI电缆，你有良好的工作与MacBook，而不是你的razer计算机，那么问题在于计算机。它要么不支持其USB端口上的DP输出，要么该端口需要修复。

Answer 2

MacBook支持USB端口上的DP和TB3，这允许使用USB到HDMI电缆将视频传输到显示器上。我没有看到任何迹象表明从razer上的USB端口支持DP。因为它有一个用于HDMI2.0的端口，所以使用它来插入您的HDMI显示器。我的猜测是，由于这是一台游戏笔记本电脑，所以TB3端口是为外部GPU设计的，而不是直接连接DP显示器。其他选择将是作为一个快速网络的团队游戏，连接VR/AR护目镜，更多的存储，更多的处理，可以包括一个GPU或CPU。如果目标只是连接HDMI显示器，那么就拿一根电缆，然后完成。如果你正在寻找一些8K高刷新魔法，那么现在是时间的GPU。