Thunderbolt 端口不发送视频

Thunderbolt 端口不发送视频

我有一个运行 ubuntu20.04 5.4.0-58-generic 的 razr Stealth RZ0901952E72。当使用带有 USB-C 端口的 MacBook 时,我可以使用 USB-HDMI 电缆运行飞利浦 243V5L。我想对 Stealth 做同样的事情(它有一个 USB-C 风格的端口,显然是“Thunderbolt 3”和一个工作正常的 HDMI 端口,整个练习的重点是运行两个或更多外部屏幕)但到目前为止还没有骰子。

未连接任何设备的 xrandr(以及通过 usbc-hdmi 电缆连接到外部监视器的 Thunderbolt)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)

当连接 HDMI 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 Thunderbolt 端口也通过 USB-HDMI 电缆连接到外部显示器时,我再次得到相同的输出。换句话说,将 usbc-hdmi 连接到 Thunderbolt 端口似乎没有改变任何东西。

雷电似乎确实是“真实的”(如果你不相信雷电 3)制造技术规格

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,我还将添加:

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)

进一步谷歌搜索后更新 - 也许我需要的是一个 USB-C 来显示端口这也能让我得到更多的显示器。

答案1

进一步谷歌搜索后更新 - 也许我需要的是一个像这样的 USB-C 显示端口,这也能让我得到一些更多的显示器。

这将无法从计算机上的 USB-C 端口获取视频,因为计算机不支持该端口的 DP 输出。要向计算机添加另一个显示器需要添加另一个 GPU。您指出计算机已经有一个 GPU,但该 GPU 仅向内部显示器和 HDMI 端口提供视频,它没有您可以达到的 DP 输出。 GPU 可能在电路板上的某个位置有 DP 连接,但如果没有螺丝刀和烙铁就无法访问该连接。如果您不这么认为,那么您需要联系制造商,因为您的 DP 输出似乎已损坏并且需要维修。如果您的 USB-C 转 HDMI 线缆在 MacBook 上工作正常,但在 Razer 电脑上却无法正常工作,那么问题就出在电脑上。它的 USB-C 端口不支持 DP 输出,或者该端口需要维修。

答案2

MacBook 在 USB-C 端口上支持 DP 和 TB3,允许使用 USB-C 转 HDMI 电缆将视频传输到显示器。我没有看到任何表明 Razer 上 USB-C 端口支持 DP 的信息。由于它有一个 HDMI 2.0 端口,因此可以使用它来插入 HDMI 显示器。我的猜测是,由于这是一款游戏笔记本电脑,因此 TB3 端口用于外部 GPU,而不是直接连接 DP 显示器。其他选项包括用作团队游戏的快速网络、VR/AR 护目镜的连接、更多的存储空间、更多的处理能力(可以包括 GPU 或 CPU)。如果目标只是连接 HDMI 显示器,那么使用一根电缆即可完成。如果您正在寻找 8K 高刷新魔法,那么 GPU 就是您的最佳选择。

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