当我读到这个标题时，我感觉自己好像正在试图打开通往另一个星系的门户......好吧，也许这并非不可能......至少从纸面上看它应该可行！
所以我在这里。
我有一个贝尔金扩展坞我想连接到我的戴尔 XPS 15。这款戴尔产品配备 USB-C 型 thundebolt 3，而 Belkin 扩展坞则使用 Thunderbolt 2（mini-DisplayPort）。
因此，为了连接它们，并遵循建议这里和这里，我买了一个苹果适配器。
今天，我将它们全部插到了一起。
首先，它们成功地连接在一起，这是一小步，但仍然是一大步。
但问题来了... Fedora 无法检测到与其连接的所有硬件（4k 屏幕、键盘、鼠标、扬声器和以太网电缆。是的，所有这些。
我相信解释我的情况的最好方法是向您展示一些 dmesg 输出，因此它如下：
[ 488.534521] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
[ 488.534522] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 488.534523] usb usb3: Product: xHCI Host Controller
[ 488.534523] usb usb3: Manufacturer: Linux 4.9.7-201.fc25.x86_64 xhci-hcd
[ 488.534524] usb usb3: SerialNumber: 0000:3e:00.0
[ 488.534781] hub 3-0:1.0: USB hub found
[ 488.534787] hub 3-0:1.0: 2 ports detected
[ 488.534883] xhci_hcd 0000:3e:00.0: xHCI Host Controller
[ 488.535036] xhci_hcd 0000:3e:00.0: new USB bus registered, assigned bus number 4
[ 488.535058] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003
[ 488.535059] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 488.535059] usb usb4: Product: xHCI Host Controller
[ 488.535060] usb usb4: Manufacturer: Linux 4.9.7-201.fc25.x86_64 xhci-hcd
[ 488.535061] usb usb4: SerialNumber: 0000:3e:00.0
[ 488.535265] hub 4-0:1.0: USB hub found
[ 488.535271] hub 4-0:1.0: 2 ports detected
[ 488.896951] usb 3-1: new low-speed USB device number 2 using xhci_hcd
[ 489.068266] usb 3-1: No LPM exit latency info found, disabling LPM.
[ 489.074304] usb 3-1: New USB device found, idVendor=05ac, idProduct=1657
[ 489.074306] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 489.074308] usb 3-1: Product: Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter
[ 489.074309] usb 3-1: Manufacturer: Apple Inc.
[ 489.074310] usb 3-1: SerialNumber: DTN6534002KH2YF4M
[ 1138.689803] usb 3-1: USB disconnect, device number 2
[ 1138.760846] xhci_hcd 0000:3e:00.0: remove, state 4
[ 1138.760851] usb usb4: USB disconnect, device number 1
[ 1138.761050] xhci_hcd 0000:3e:00.0: Host not halted after 16000 microseconds.
[ 1138.762074] xhci_hcd 0000:3e:00.0: USB bus 4 deregistered
[ 1138.762223] xhci_hcd 0000:3e:00.0: remove, state 4
[ 1138.762228] usb usb3: USB disconnect, device number 1
[ 1138.762494] xhci_hcd 0000:3e:00.0: USB bus 3 deregistered
[ 1138.781929] pci_bus 0000:07: Allocating resources
[ 1138.781954] pcieport 0000:07:01.0: bridge window [io 0x1000-0x0fff] to [bus 09-3d] add_size 1000
[ 1138.781963] pcieport 0000:07:02.0: bridge window [io 0x1000-0x0fff] to [bus 3e] add_size 1000
[ 1138.781964] pcieport 0000:07:02.0: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus 3e] add_size 200000 add_align 100000
[ 1138.781972] pcieport 0000:07:01.0: res[13]=[io 0x1000-0x0fff] res_to_dev_res add_size 1000 min_align 1000
[ 1138.781973] pcieport 0000:07:02.0: res[13]=[io 0x1000-0x0fff] res_to_dev_res add_size 1000 min_align 1000
[ 1138.781974] pcieport 0000:06:00.0: bridge window [io 0x1000-0x0fff] to [bus 07-3e] add_size 2000
[ 1138.781976] pcieport 0000:06:00.0: res[13]=[io 0x1000-0x0fff] res_to_dev_res add_size 2000 min_align 1000
[ 1138.781977] pcieport 0000:06:00.0: res[13]=[io 0x1000-0x2fff] res_to_dev_res add_size 2000 min_align 1000
[ 1138.781979] pcieport 0000:06:00.0: BAR 13: no space for [io size 0x2000]
[ 1138.781980] pcieport 0000:06:00.0: BAR 13: failed to assign [io size 0x2000]
[ 1138.781981] pcieport 0000:06:00.0: BAR 13: no space for [io size 0x2000]
[ 1138.781982] pcieport 0000:06:00.0: BAR 13: failed to assign [io size 0x2000]
[ 1138.781984] pcieport 0000:07:02.0: res[15]=[mem 0x00100000-0x000fffff 64bit pref] res_to_dev_res add_size 200000 min_align 100000
[ 1138.781985] pcieport 0000:07:02.0: res[15]=[mem 0x00100000-0x002fffff 64bit pref] res_to_dev_res add_size 200000 min_align 100000
[ 1138.781986] pcieport 0000:07:01.0: res[13]=[io 0x1000-0x0fff] res_to_dev_res add_size 1000 min_align 1000
[ 1138.781987] pcieport 0000:07:01.0: res[13]=[io 0x1000-0x1fff] res_to_dev_res add_size 1000 min_align 1000
[ 1138.781988] pcieport 0000:07:02.0: res[13]=[io 0x1000-0x0fff] res_to_dev_res add_size 1000 min_align 1000
[ 1138.781989] pcieport 0000:07:02.0: res[13]=[io 0x1000-0x1fff] res_to_dev_res add_size 1000 min_align 1000
[ 1138.781992] pcieport 0000:07:02.0: BAR 15: no space for [mem size 0x00200000 64bit pref]
[ 1138.781993] pcieport 0000:07:02.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref]
[ 1138.781993] pcieport 0000:07:01.0: BAR 13: no space for [io size 0x1000]
[ 1138.781994] pcieport 0000:07:01.0: BAR 13: failed to assign [io size 0x1000]
[ 1138.781995] pcieport 0000:07:02.0: BAR 13: no space for [io size 0x1000]
[ 1138.781996] pcieport 0000:07:02.0: BAR 13: failed to assign [io size 0x1000]
[ 1138.781998] pcieport 0000:07:02.0: BAR 15: no space for [mem size 0x00200000 64bit pref]
[ 1138.781999] pcieport 0000:07:02.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref]
[ 1138.782000] pcieport 0000:07:02.0: BAR 13: no space for [io size 0x1000]
[ 1138.782000] pcieport 0000:07:02.0: BAR 13: failed to assign [io size 0x1000]
[ 1138.782001] pcieport 0000:07:01.0: BAR 13: no space for [io size 0x1000]
[ 1138.782002] pcieport 0000:07:01.0: BAR 13: failed to assign [io size 0x1000]
[ 1143.882451] pcieport 0000:07:00.0: Refused to change power state, currently in D3
[ 1143.883388] pci_bus 0000:08: busn_res: [bus 08] is released
[ 1143.883437] pci_bus 0000:09: busn_res: [bus 09-3d] is released
[ 1143.883491] pci_bus 0000:3e: busn_res: [bus 3e] is released
[ 1143.883543] pci_bus 0000:07: busn_res: [bus 07-3e] is released
我想指出的是，我能够使用 Macbook Pro 2015（带有 thunderbolt 2）测试 Belkin（连接相同的硬件），并且它可以正确地用于连接到扩展坞的所有设备。
因此错误可能来自以下原因：
- Apple 适配器
- 戴尔的硬件（可以在 BIOS 中启用/禁用吗？）
- 来自 Fedora（我真的很怀疑，但谁知道呢？（不是我））
任何帮助将不胜感激！！
答案1
根据苹果，
Thunderbolt 3 (USB-C) 转 Thunderbolt 2 适配器不支持连接以下设备：
Thunderbolt 3 (USB-C) 总线供电设备
没有 Thunderbolt 的 USB-C 设备、显示器和适配器
MacBook（Retina，12 英寸，2015 年初）及更新机型
答案2
那么，好消息，它有效！
我不知道实际操作起来怎么样，但在操作过 Bios 之后，扩展坞就可以正常工作了。
必须启用 USB Powershare（我尝试过不启用，但没有用）
至于其他参数，我取消选中“始终允许戴尔基座”并检查了其他所有内容。
安全级别为User Authorization。
