问题[thunderbolt](ubuntu)

当XPS 9310 DE 笔记本电脑（使用戴尔预装的 Ubuntu 20.04 以及所有更新，包括笔记本电脑和坞站的 LVFS 更新）关闭并连接到WD19TB坞站时，当我打开它时它不会启动。

当我按下电源按钮（在笔记本电脑或扩展坞上）时，笔记本电脑上的屏幕变为活动状态，显示戴尔徽标，但只是无限期地保持这种状态。

如果我按住电源按钮 10 秒以上，计算机可能会被强制关闭。当我在强制关闭后再次启动它时，我看到了戴尔徽标，但计算机继续运行，我看到的下一个屏幕是 GRUB 启动菜单。从那里我可以选择“Ubuntu”，计算机正常启动没有问题。

使一切正常的另一种方法是在启动计算机之前，从笔记本电脑上拔下 Thunderbolt 电缆。然后它正常启动，我可以再次连接 Thunderbolt 电缆，一切正常。

我正在寻找一种解决方案，这样我总是可以让笔记本电脑连接到扩展坞，并在第一次尝试时让它正常启动（没有强制关机或断开/重新连接）。

我已经查找了 dmsg 或 syslogs，但没有看到任何东西，这是有道理的，因为它并没有走得太远。我很感激任何解决这个问题的想法，甚至只是替代调试方法。

更新：我的问题与在这个戴尔论坛帖子中看到的非常相似。

我通过我的 caldigit ts3 plus 坞站只获得了一台显示器（以及充电）；扩展坞连接到笔记本电脑上的 Thunderbolt 3 接口。该扩展坞在我也拥有的 Macbook Pro 上完美运行。

欢迎任何关于如何显示两个屏幕的想法。

我有一个运行 Ubuntu 20.04 的戴尔 XPS 15 (4K OLED) 连接到戴尔 WD19TB 坞站。

扩展坞已连接到它：

• 2x4K 外接显示器
• 以太网
• 我的无线键盘/鼠标的 USB 接收器

它主要工作（忽略分数缩放的怪异）。我遇到的主要问题是，有时 USB 掉线意味着我的键盘/鼠标停止工作。有时它只是几秒钟，有时我需要重新启动我的机器或插入/拔出扩展坞。我已经为 Thunderbolt 设置了“无安全性”，而 Ubuntu 将扩展坞显示为“已授权”。我不确定如何进行。

谢谢，戈登

编辑：Mac OS X（13" MBP 和 4 个 Thunderbolt 端口）上的硬件相同。

在运行 Ubuntu 20.04 的 Thinkpad L590 上显示 Thunderbolt 信息时，我得到以下信息：

No Thunderbolt support - Thunderbolt security level could not be determinded

我已经禁用了安全启动，因为有些人在其他讨论中说这可能是问题的原因，但它似乎没有帮助。

知道如何解决这个问题吗？

编辑和回答

正如评论指出的那样，L490 不支持迅雷，与 T490 等相反。所以这就是解释...

我遇到了一个与缺乏对 Thunderbolt 通道绑定的支持有关的问题，我认为它在内核 5.5 中已修复，有没有办法知道 20.04 何时可用？ https://www.phoronix.com/scan.php?page=news_item&px=Linux-5.5-Thunderbolt-Changes

如果可能的话，我不想搞乱安装主线内核版本并进行常规更新过程

我有一台新的 Dell Precission 5540 笔记本电脑，我连接到我的 LG 34WK95 显示器。在 Windows 中，我得到完整的 5120x2160@60hz 分辨率，但在 Ubuntu 中，我能得到的最好分辨率是 3440x1440。显示器通过迅雷 (usb-c) 连接。

有谁知道如何解决这一问题？或者至少我应该在哪里提交错误报告。

谷歌搜索时我能找到的唯一相关内容是这些链接

https://unix.stackexchange.com/questions/486350/using-displayport-over-usb-c-thunderbolt-3-to-drive-external-5120x2160-monitor

https://www.phoronix.com/scan.php?page=news_item&px=Linux-USB-Type-C-Port-DP-Driver

更新 1：使用 xrandr 我可以强制设置 5120x2160@30Hz 设置，所以这可能表明它以某种方式在 USB-C 模式下运行，即使连接的是在 Windows 中工作的相同 thunberbolt 电缆？ https://www.lg.com/uk/monitors/lg-34WK95U

60赫兹仍然不起作用。

更新 2：按要求附加xrandr --verbose输出

$ xrandr --verbose
Screen 0: minimum 320 x 200, current 8192 x 3456, maximum 16384 x 16384
eDP-1 connected (normal left inverted right x axis y axis)
    Identifier: 0x42
    Timestamp:  3453569
    Subpixel:   unknown
    Clones:    
    CRTCs:      1 0 2
    Transform:  1.000000 0.000000 0.000000
                0.000000 1.000000 0.000000
                0.000000 0.000000 1.000000
               filter: 
    _MUTTER_PRESENTATION_OUTPUT: 0 
    EDID: 
        00ffffffffffff004d10ba1400000000
        161d0104a52213780ede50a3544c9926
        0f505400000001010101010101010101
        010101010101ac3780a070383e403020
        350058c2100000180000000000000000
        00000000000000000000000000fe004d
        57503154804c513135364d3100000000
        0002410332001200000a010a202000d3
    scaling mode: Full aspect 
        supported: Full, Center, Full aspect
    max bpc: 12 
        range: (6, 12)
    Broadcast RGB: Automatic 
        supported: Automatic, Full, Limited 16:235
    link-status: Good 
        supported: Good, Bad
    CONNECTOR_ID: 86 
        supported: 86
    non-desktop: 0 
        range: (0, 1)
  1920x1080 (0x47) 142.520MHz -HSync -VSync +preferred
        h: width  1920 start 1968 end 2000 total 2080 skew    0 clock  68.52KHz
        v: height 1080 start 1083 end 1088 total 1142           clock  60.00Hz
  1920x1080 (0x48) 266.500MHz +HSync -VSync DoubleScan
        h: width  1920 start 1944 end 1960 total 2000 skew    0 clock 133.25KHz
        v: height 1080 start 1081 end 1084 total 1111           clock  59.97Hz
  1920x1080 (0x49) 173.000MHz -HSync +VSync
        h: width  1920 start 2048 end 2248 total 2576 skew    0 clock  67.16KHz
        v: height 1080 start 1083 end 1088 total 1120           clock  59.96Hz
  1920x1080 (0x4a) 138.500MHz +HSync -VSync
        h: width  1920 start 1968 end 2000 total 2080 skew    0 clock  66.59KHz
        v: height 1080 start 1083 end 1088 total 1111           clock  59.93Hz
  1680x1050 (0x4b) 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
  1680x1050 (0x4c) 119.000MHz +HSync -VSync
        h: width  1680 start 1728 end 1760 total 1840 skew    0 clock  64.67KHz
        v: height 1050 start 1053 end 1059 total 1080           clock  59.88Hz
  1600x1024 (0x4d) 103.125MHz +HSync +VSync
        h: width  1600 start 1600 end 1656 total 1664 skew    0 clock  61.97KHz
        v: height 1024 start 1024 end 1029 total 1030           clock  60.17Hz
  1400x1050 (0x4e) 122.000MHz +HSync +VSync
        h: width  1400 start 1488 end 1640 total 1880 skew    0 clock  64.89KHz
        v: height 1050 start 1052 end 1064 total 1082           clock  59.98Hz
  1600x900 (0x4f) 246.000MHz -HSync +VSync DoubleScan
        h: width  1600 start 1728 end 1900 total 2200 skew    0 clock 111.82KHz
        v: height  900 start  901 end  904 total  932           clock  59.99Hz
  1600x900 (0x50) 186.500MHz +HSync -VSync DoubleScan
        h: width  1600 start 1624 end 1640 total 1680 skew    0 clock 111.01KHz
        v: height  900 start  901 end  904 total  926           clock  59.94Hz
  1600x900 (0x51) 118.250MHz -HSync +VSync
        h: width  1600 start 1696 end 1856 total 2112 skew    0 clock  55.99KHz
        v: height  900 start  903 end  908 total  934           clock  59.95Hz
  1600x900 (0x52) 97.500MHz +HSync -VSync
        h: width  1600 start 1648 end 1680 total 1760 skew    0 clock  55.40KHz
        v: height  900 start  903 end  908 total  926           clock  59.82Hz
  1280x1024 (0x53) 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 (0x54) 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
  1400x900 (0x55) 103.500MHz -HSync +VSync
        h: width  1400 start 1480 end 1624 total 1848 skew    0 clock  56.01KHz
        v: height  900 start  903 end  913 total  934           clock  59.96Hz
  1400x900 (0x56) 86.500MHz +HSync -VSync
        h: width  1400 start 1448 end 1480 total 1560 skew    0 clock  55.45KHz
        v: height  900 start  903 end  913 total  926           clock  59.88Hz
  1280x960 (0x57) 108.000MHz +HSync +VSync
        h: width  1280 start 1376 end 1488 total 1800 skew    0 clock  60.00KHz
        v: height  960 start  961 end  964 total 1000           clock  60.00Hz
  1440x810 (0x58) 198.125MHz -HSync +VSync DoubleScan
        h: width  1440 start 1548 end 1704 total 1968 skew    0 clock 100.67KHz
        v: height  810 start  811 end  814 total  839           clock  60.00Hz
  1440x810 (0x59) 151.875MHz +HSync -VSync DoubleScan
        h: width  1440 start 1464 end 1480 total 1520 skew    0 clock  99.92KHz
        v: height  810 start  811 end  814 total  833           clock  59.97Hz
  1368x768 (0x5a) 85.250MHz -HSync +VSync
        h: width  1368 start 1440 end 1576 total 1784 skew    0 clock  47.79KHz
        v: height  768 start  771 end  781 total  798           clock  59.88Hz
  1368x768 (0x5b) 72.250MHz +HSync -VSync
        h: width  1368 start 1416 end 1448 total 1528 skew    0 clock  47.28KHz
        v: height  768 start  771 end  781 total  790           clock  59.85Hz
  1360x768 (0x5c) 84.750MHz -HSync +VSync
        h: width  1360 start 1432 end 1568 total 1776 skew    0 clock  47.72KHz
        v: height  768 start  771 end  781 total  798           clock  59.80Hz
  1360x768 (0x5d) 72.000MHz +HSync -VSync
        h: width  1360 start 1408 end 1440 total 1520 skew    0 clock  47.37KHz
        v: height  768 start  771 end  781 total  790           clock  59.96Hz
  1280x800 (0x5e) 174.250MHz -HSync +VSync DoubleScan
        h: width  1280 start 1380 end 1516 total 1752 skew    0 clock  99.46KHz
        v: height  800 start  801 end  804 total  829           clock  59.99Hz
  1280x800 (0x5f) 134.250MHz +HSync -VSync DoubleScan
        h: width  1280 start 1304 end 1320 total 1360 skew    0 clock  98.71KHz
        v: height  800 start  801 end  804 total  823           clock  59.97Hz
  1280x800 (0x60) 83.500MHz -HSync +VSync
        h: width  1280 start 1352 end 1480 total 1680 skew    0 clock  49.70KHz
        v: height  800 start  803 end  809 total  831           clock  59.81Hz
  1280x800 (0x61) 71.000MHz +HSync -VSync
        h: width  1280 start 1328 end 1360 total 1440 skew    0 clock  49.31KHz
        v: height  800 start  803 end  809 total  823           clock  59.91Hz
  1152x864 (0x62) 81.620MHz -HSync +VSync
        h: width  1152 start 1216 end 1336 total 1520 skew    0 clock  53.70KHz
        v: height  864 start  865 end  868 total  895           clock  60.00Hz
  1280x720 (0x63) 156.125MHz -HSync +VSync DoubleScan
        h: width  1280 start 1376 end 1512 total 1744 skew    0 clock  89.52KHz
        v: height  720 start  721 end  724 total  746           clock  60.00Hz
  1280x720 (0x64) 120.750MHz +HSync -VSync DoubleScan
        h: width  1280 start 1304 end 1320 total 1360 skew    0 clock  88.79KHz
        v: height  720 start  721 end  724 total  740           clock  59.99Hz
  1280x720 (0x65) 74.500MHz -HSync +VSync
        h: width  1280 start 1344 end 1472 total 1664 skew    0 clock  44.77KHz
        v: height  720 start  723 end  728 total  748           clock  59.86Hz
  1280x720 (0x66) 63.750MHz +HSync -VSync
        h: width  1280 start 1328 end 1360 total 1440 skew    0 clock  44.27KHz
        v: height  720 start  723 end  728 total  741           clock  59.74Hz
  1024x768 (0x67) 133.475MHz -HSync +VSync DoubleScan
        h: width  1024 start 1100 end 1212 total 1400 skew    0 clock  95.34KHz
        v: height  768 start  768 end  770 total  794           clock  60.04Hz
  1024x768 (0x68) 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
  960x720 (0x69) 117.000MHz -HSync +VSync DoubleScan
        h: width   960 start 1024 end 1128 total 1300 skew    0 clock  90.00KHz
        v: height  720 start  720 end  722 total  750           clock  60.00Hz
  928x696 (0x6a) 109.150MHz -HSync +VSync DoubleScan
        h: width   928 start  976 end 1088 total 1264 skew    0 clock  86.35KHz
        v: height  696 start  696 end  698 total  719           clock  60.05Hz
  896x672 (0x6b) 102.400MHz -HSync +VSync DoubleScan
        h: width   896 start  960 end 1060 total 1224 skew    0 clock  83.66KHz
        v: height  672 start  672 end  674 total  697           clock  60.01Hz
  1024x576 (0x6c) 98.500MHz -HSync +VSync DoubleScan
        h: width  1024 start 1092 end 1200 total 1376 skew    0 clock  71.58KHz
        v: height  576 start  577 end  580 total  597           clock  59.95Hz
  1024x576 (0x6d) 78.375MHz +HSync -VSync DoubleScan
        h: width  1024 start 1048 end 1064 total 1104 skew    0 clock  70.99KHz
        v: height  576 start  577 end  580 total  592           clock  59.96Hz
  1024x576 (0x6e) 46.500MHz -HSync +VSync
        h: width  1024 start 1064 end 1160 total 1296 skew    0 clock  35.88KHz
        v: height  576 start  579 end  584 total  599           clock  59.90Hz
  1024x576 (0x6f) 42.000MHz +HSync -VSync
        h: width  1024 start 1072 end 1104 total 1184 skew    0 clock  35.47KHz
        v: height  576 start  579 end  584 total  593           clock  59.82Hz
  960x600 (0x70) 96.625MHz -HSync +VSync DoubleScan
        h: width   960 start 1028 end 1128 total 1296 skew    0 clock  74.56KHz
        v: height  600 start  601 end  604 total  622           clock  59.93Hz
  960x600 (0x71) 77.000MHz +HSync -VSync DoubleScan
        h: width   960 start  984 end 1000 total 1040 skew    0 clock  74.04KHz
        v: height  600 start  601 end  604 total  617           clock  60.00Hz
  960x540 (0x72) 86.500MHz -HSync +VSync DoubleScan
        h: width   960 start 1024 end 1124 total 1288 skew    0 clock  67.16KHz
        v: height  540 start  541 end  544 total  560           clock  59.96Hz
  960x540 (0x73) 69.250MHz +HSync -VSync DoubleScan
        h: width   960 start  984 end 1000 total 1040 skew    0 clock  66.59KHz
        v: height  540 start  541 end  544 total  555           clock  59.99Hz
  960x540 (0x74) 40.750MHz -HSync +VSync
        h: width   960 start  992 end 1088 total 1216 skew    0 clock  33.51KHz
        v: height  540 start  543 end  548 total  562           clock  59.63Hz
  960x540 (0x75) 37.250MHz +HSync -VSync
        h: width   960 start 1008 end 1040 total 1120 skew    0 clock  33.26KHz
        v: height  540 start  543 end  548 total  556           clock  59.82Hz
  800x600 (0x76) 81.000MHz +HSync +VSync DoubleScan
        h: width   800 start  832 end  928 total 1080 skew    0 clock  75.00KHz
        v: height  600 start  600 end  602 total  625           clock  60.00Hz
  800x600 (0x77) 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
  800x600 (0x78) 36.000MHz +HSync +VSync
        h: width   800 start  824 end  896 total 1024 skew    0 clock  35.16KHz
        v: height  600 start  601 end  603 total  625           clock  56.25Hz
  840x525 (0x79) 73.125MHz -HSync +VSync DoubleScan
        h: width   840 start  892 end  980 total 1120 skew    0 clock  65.29KHz
        v: height  525 start  526 end  529 total  544           clock  60.01Hz
  840x525 (0x7a) 59.500MHz +HSync -VSync DoubleScan
        h: width   840 start  864 end  880 total  920 skew    0 clock  64.67KHz
        v: height  525 start  526 end  529 total  540           clock  59.88Hz
  864x486 (0x7b) 32.500MHz -HSync +VSync
        h: width   864 start  888 end  968 total 1072 skew    0 clock  30.32KHz
        v: height  486 start  489 end  494 total  506           clock  59.92Hz
  864x486 (0x7c) 30.500MHz +HSync -VSync
        h: width   864 start  912 end  944 total 1024 skew    0 clock  29.79KHz
        v: height  486 start  489 end  494 total  500           clock  59.57Hz
  800x512 (0x7d) 51.562MHz +HSync +VSync DoubleScan
        h: width   800 start  800 end  828 total  832 skew    0 clock  61.97KHz
        v: height  512 start  512 end  514 total  515           clock  60.17Hz
  700x525 (0x7e) 61.000MHz +HSync +VSync DoubleScan
        h: width   700 start  744 end  820 total  940 skew    0 clock  64.89KHz
        v: height  525 start  526 end  532 total  541           clock  59.98Hz
  800x450 (0x7f) 59.125MHz -HSync +VSync DoubleScan
        h: width   800 start  848 end  928 total 1056 skew    0 clock  55.99KHz
        v: height  450 start  451 end  454 total  467           clock  59.95Hz
  800x450 (0x80) 48.750MHz +HSync -VSync DoubleScan
        h: width   800 start  824 end  840 total  880 skew    0 clock  55.40KHz
        v: height  450 start  451 end  454 total  463           clock  59.82Hz
  640x512 (0x81) 54.000MHz +HSync +VSync DoubleScan
        h: width   640 start  664 end  720 total  844 skew    0 clock  63.98KHz
        v: height  512 start  512 end  514 total  533           clock  60.02Hz
  720x450 (0x82) 53.250MHz -HSync +VSync DoubleScan
        h: width   720 start  760 end  836 total  952 skew    0 clock  55.93KHz
        v: height  450 start  451 end  454 total  467           clock  59.89Hz
  700x450 (0x83) 51.750MHz -HSync +VSync DoubleScan
        h: width   700 start  740 end  812 total  924 skew    0 clock  56.01KHz
        v: height  450 start  451 end  456 total  467           clock  59.96Hz
  700x450 (0x84) 43.250MHz +HSync -VSync DoubleScan
        h: width   700 start  724 end  740 total  780 skew    0 clock  55.45KHz
        v: height  450 start  451 end  456 total  463           clock  59.88Hz
  640x480 (0x85) 54.000MHz +HSync +VSync DoubleScan
        h: width   640 start  688 end  744 total  900 skew    0 clock  60.00KHz
        v: height  480 start  480 end  482 total  500           clock  60.00Hz
  640x480 (0x86) 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
  720x405 (0x87) 22.500MHz -HSync +VSync
        h: width   720 start  744 end  808 total  896 skew    0 clock  25.11KHz
        v: height  405 start  408 end  413 total  422           clock  59.51Hz
  720x405 (0x88) 21.750MHz +HSync -VSync
        h: width   720 start  768 end  800 total  880 skew    0 clock  24.72KHz
        v: height  405 start  408 end  413 total  419           clock  58.99Hz
  684x384 (0x89) 42.625MHz -HSync +VSync DoubleScan
        h: width   684 start  720 end  788 total  892 skew    0 clock  47.79KHz
        v: height  384 start  385 end  390 total  399           clock  59.88Hz
  684x384 (0x8a) 36.125MHz +HSync -VSync DoubleScan
        h: width   684 start  708 end  724 total  764 skew    0 clock  47.28KHz
        v: height  384 start  385 end  390 total  395           clock  59.85Hz
  680x384 (0x8b) 42.375MHz -HSync +VSync DoubleScan
        h: width   680 start  716 end  784 total  888 skew    0 clock  47.72KHz
        v: height  384 start  385 end  390 total  399           clock  59.80Hz
  680x384 (0x8c) 36.000MHz +HSync -VSync DoubleScan
        h: width   680 start  704 end  720 total  760 skew    0 clock  47.37KHz
        v: height  384 start  385 end  390 total  395           clock  59.96Hz
  640x400 (0x8d) 41.750MHz -HSync +VSync DoubleScan
        h: width   640 start  676 end  740 total  840 skew    0 clock  49.70KHz
        v: height  400 start  401 end  404 total  415           clock  59.88Hz
  640x400 (0x8e) 35.500MHz +HSync -VSync DoubleScan
        h: width   640 start  664 end  680 total  720 skew    0 clock  49.31KHz
        v: height  400 start  401 end  404 total  411           clock  59.98Hz
  576x432 (0x8f) 40.810MHz -HSync +VSync DoubleScan
        h: width   576 start  608 end  668 total  760 skew    0 clock  53.70KHz
        v: height  432 start  432 end  434 total  447           clock  60.06Hz
  640x360 (0x90) 37.250MHz -HSync +VSync DoubleScan
        h: width   640 start  672 end  736 total  832 skew    0 clock  44.77KHz
        v: height  360 start  361 end  364 total  374           clock  59.86Hz
  640x360 (0x91) 31.875MHz +HSync -VSync DoubleScan
        h: width   640 start  664 end  680 total  720 skew    0 clock  44.27KHz
        v: height  360 start  361 end  364 total  370           clock  59.83Hz
  640x360 (0x92) 18.000MHz -HSync +VSync
        h: width   640 start  664 end  720 total  800 skew    0 clock  22.50KHz
        v: height  360 start  363 end  368 total  376           clock  59.84Hz
  640x360 (0x93) 17.750MHz +HSync -VSync
        h: width   640 start  688 end  720 total  800 skew    0 clock  22.19KHz
        v: height  360 start  363 end  368 total  374           clock  59.32Hz
  512x384 (0x94) 32.500MHz -HSync -VSync DoubleScan
        h: width   512 start  524 end  592 total  672 skew    0 clock  48.36KHz
        v: height  384 start  385 end  388 total  403           clock  60.00Hz
  512x288 (0x95) 23.250MHz -HSync +VSync DoubleScan
        h: width   512 start  532 end  580 total  648 skew    0 clock  35.88KHz
        v: height  288 start  289 end  292 total  299           clock  60.00Hz
  512x288 (0x96) 21.000MHz +HSync -VSync DoubleScan
        h: width   512 start  536 end  552 total  592 skew    0 clock  35.47KHz
        v: height  288 start  289 end  292 total  296           clock  59.92Hz
  480x270 (0x97) 20.375MHz -HSync +VSync DoubleScan
        h: width   480 start  496 end  544 total  608 skew    0 clock  33.51KHz
        v: height  270 start  271 end  274 total  281           clock  59.63Hz
  480x270 (0x98) 18.625MHz +HSync -VSync DoubleScan
        h: width   480 start  504 end  520 total  560 skew    0 clock  33.26KHz
        v: height  270 start  271 end  274 total  278           clock  59.82Hz
  400x300 (0x99) 20.000MHz +HSync +VSync DoubleScan
        h: width   400 start  420 end  484 total  528 skew    0 clock  37.88KHz
        v: height  300 start  300 end  302 total  314           clock  60.32Hz
  400x300 (0x9a) 18.000MHz +HSync +VSync DoubleScan
        h: width   400 start  412 end  448 total  512 skew    0 clock  35.16KHz
        v: height  300 start  300 end  301 total  312           clock  56.34Hz
  432x243 (0x9b) 16.250MHz -HSync +VSync DoubleScan
        h: width   432 start  444 end  484 total  536 skew    0 clock  30.32KHz
        v: height  243 start  244 end  247 total  253           clock  59.92Hz
  432x243 (0x9c) 15.250MHz +HSync -VSync DoubleScan
        h: width   432 start  456 end  472 total  512 skew    0 clock  29.79KHz
        v: height  243 start  244 end  247 total  250           clock  59.57Hz
  320x240 (0x9d) 12.587MHz -HSync -VSync DoubleScan
        h: width   320 start  328 end  376 total  400 skew    0 clock  31.47KHz
        v: height  240 start  245 end  246 total  262           clock  60.05Hz
  360x202 (0x9e) 11.250MHz -HSync +VSync DoubleScan
        h: width   360 start  372 end  404 total  448 skew    0 clock  25.11KHz
        v: height  202 start  204 end  206 total  211           clock  59.51Hz
  360x202 (0x9f) 10.875MHz +HSync -VSync DoubleScan
        h: width   360 start  384 end  400 total  440 skew    0 clock  24.72KHz
        v: height  202 start  204 end  206 total  209           clock  59.13Hz
  320x180 (0xa0)  9.000MHz -HSync +VSync DoubleScan
        h: width   320 start  332 end  360 total  400 skew    0 clock  22.50KHz
        v: height  180 start  181 end  184 total  188           clock  59.84Hz
  320x180 (0xa1)  8.875MHz +HSync -VSync DoubleScan
        h: width   320 start  344 end  360 total  400 skew    0 clock  22.19KHz
        v: height  180 start  181 end  184 total  187           clock  59.32Hz
DP-1 connected primary 8192x3456+0+0 (0x5dd) normal (normal left inverted right x axis y axis) 800mm x 330mm
    Identifier: 0x43
    Timestamp:  3453569
    Subpixel:   unknown
    Gamma:      1.0:1.0:1.0
    Brightness: 1.0
    Clones:    
    CRTC:       0
    CRTCs:      1 0 2
    Transform:  1.599991 0.000000 0.000000
                0.000000 1.599991 0.000000
                0.000000 0.000000 1.000000
               filter: bilinear
    EDID: 
        00ffffffffffff001e6d2177d3ad0200
        091d0104b55021789e09c1ae5044af26
        0e50542108007140818081c0a9c0d1c0
        810001010101e77c70a0d0a029503020
        3a00204a3100001a9d6770a0d0a02250
        30203a00204a3100001a000000fd0030
        3d1e874c000a202020202020000000fc
        004c472048445220354b0a202020033d
        02031971449004030123090707830100
        00e305c000e30605014dd000a0f0703e
        803020650c204a3100001a286800a0f0
        703e800890650c204a3100001a000000
        00000000000000000000000000000000
        00000000000000000000000000000000
        00000000000000000000000000000000
        000000000000000000000000000000e3
        701279030001000c401fe40c00147008
        90788999030014e07c00086f0d9f002f
        801f009f052800020009000000000000
        00000000000000000000000000000000
        00000000000000000000000000000000
        00000000000000000000000000000000
        00000000000000000000000000000000
        00000000000000000000000000002590
        701279030012001682100000ff096f08
    _MUTTER_PRESENTATION_OUTPUT: 0 
    Content Protection: Undesired 
        supported: Undesired, Desired, Enabled
    max bpc: 12 
        range: (6, 12)
    Broadcast RGB: Automatic 
        supported: Automatic, Full, Limited 16:235
    audio: auto 
        supported: force-dvi, off, auto, on
    link-status: Good 
        supported: Good, Bad
    CONNECTOR_ID: 92 
        supported: 92
    non-desktop: 0 
        range: (0, 1)
  3440x1440 (0x5df) 319.750MHz +HSync -VSync +preferred
        h: width  3440 start 3488 end 3520 total 3600 skew    0 clock  88.82KHz
        v: height 1440 start 1443 end 1453 total 1481           clock  59.97Hz
  3840x2160 (0x5e0) 533.250MHz +HSync -VSync
        h: width  3840 start 3888 end 3920 total 4000 skew    0 clock 133.31KHz
        v: height 2160 start 2214 end 2219 total 2222           clock  60.00Hz
  3840x2160 (0x5e1) 266.640MHz +HSync -VSync
        h: width  3840 start 3848 end 3992 total 4000 skew    0 clock  66.66KHz
        v: height 2160 start 2214 end 2219 total 2222           clock  30.00Hz
  3440x1440 (0x5e2) 319.680MHz +HSync -VSync
        h: width  3440 start 3488 end 3520 total 3600 skew    0 clock  88.80KHz
        v: height 1440 start 1443 end 1453 total 1481           clock  59.96Hz
  3440x1440 (0x5e3) 265.250MHz +HSync -VSync
        h: width  3440 start 3488 end 3520 total 3600 skew    0 clock  73.68KHz
        v: height 1440 start 1443 end 1453 total 1474           clock  49.99Hz
  1920x1080 (0x5e4) 148.500MHz -HSync -VSync
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  67.50KHz
        v: height 1080 start 1084 end 1089 total 1125           clock  60.00Hz
  1920x1080 (0x5e5) 148.500MHz +HSync +VSync
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  67.50KHz
        v: height 1080 start 1084 end 1089 total 1125           clock  60.00Hz
  1920x1080 (0x5e6) 148.352MHz +HSync +VSync
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  67.43KHz
        v: height 1080 start 1084 end 1089 total 1125           clock  59.94Hz
  1600x900 (0x5e7) 108.000MHz +HSync +VSync
        h: width  1600 start 1624 end 1704 total 1800 skew    0 clock  60.00KHz
        v: height  900 start  901 end  904 total 1000           clock  60.00Hz
  1280x1024 (0x53) 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
  1280x800 (0x60) 83.500MHz -HSync +VSync
        h: width  1280 start 1352 end 1480 total 1680 skew    0 clock  49.70KHz
        v: height  800 start  803 end  809 total  831           clock  59.81Hz
  1152x864 (0x5e8) 81.579MHz -HSync +VSync
        h: width  1152 start 1216 end 1336 total 1520 skew    0 clock  53.67KHz
        v: height  864 start  865 end  868 total  895           clock  59.97Hz
  1280x720 (0x5e9) 74.250MHz +HSync +VSync
        h: width  1280 start 1390 end 1430 total 1650 skew    0 clock  45.00KHz
        v: height  720 start  725 end  730 total  750           clock  60.00Hz
  1280x720 (0x5ea) 74.176MHz +HSync +VSync
        h: width  1280 start 1390 end 1430 total 1650 skew    0 clock  44.96KHz
        v: height  720 start  725 end  730 total  750           clock  59.94Hz
  1024x768 (0x68) 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 (0x77) 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
  720x480 (0x5eb) 27.027MHz -HSync -VSync
        h: width   720 start  736 end  798 total  858 skew    0 clock  31.50KHz
        v: height  480 start  489 end  495 total  525           clock  60.00Hz
  720x480 (0x5ec) 27.000MHz -HSync -VSync
        h: width   720 start  736 end  798 total  858 skew    0 clock  31.47KHz
        v: height  480 start  489 end  495 total  525           clock  59.94Hz
  640x480 (0x5ed) 25.200MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock  31.50KHz
        v: height  480 start  490 end  492 total  525           clock  60.00Hz
  640x480 (0x86) 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
  5120x2160_30.00 (0x5dd) 452.750MHz -HSync +VSync *current
        h: width  5120 start 5448 end 5992 total 6864 skew    0 clock  65.96KHz
        v: height 2160 start 2163 end 2173 total 2200           clock  29.98Hz
  5120x2160_60.00 (0x5f1) 949.000MHz -HSync +VSync
        h: width  5120 start 5536 end 6096 total 7072 skew    0 clock 134.19KHz
        v: height 2160 start 2163 end 2173 total 2237           clock  59.99Hz
DP-2 connected (normal left inverted right x axis y axis)
    Identifier: 0x44
    Timestamp:  3453569
    Subpixel:   unknown
    Clones:    
    CRTCs:      1 0 2
    Transform:  1.000000 0.000000 0.000000
                0.000000 1.000000 0.000000
                0.000000 0.000000 1.000000
               filter: 
    EDID: 
        00ffffffffffff001e6d2177d3ad0200
        091d0104b55021789e09c1ae5044af26
        0e505420000001010101010101010101
        01010101010100000000000000000000
        00000000000000000000000000000000
        00000000000000000000000000fd0030
        3d1e874c000a202020202020000000fc
        004c472048445220354b0a202020017a
        701279030001000c401fe40c00147008
        9078899912001680101000ff096f0800
        0000000047534d217701010101030014
        f0890008ff094f0007801f006f085100
        00000700000000000000000000000000
        00000000000000000000000000000000
        00000000000000000000000000000000
        00000000000000000000000000003290
    TILE: 1 1 2 1 1 0 2560 2160 
    Content Protection: Undesired 
        supported: Undesired, Desired, Enabled
    max bpc: 12 
        range: (6, 12)
    Broadcast RGB: Automatic 
        supported: Automatic, Full, Limited 16:235
    audio: auto 
        supported: force-dvi, off, auto, on
    link-status: Good 
        supported: Good, Bad
    CONNECTOR_ID: 100 
        supported: 100
    non-desktop: 0 
        range: (0, 1)
  2560x2160 (0x5de) 353.120MHz +HSync -VSync
        h: width  2560 start 2568 end 2600 total 2640 skew    0 clock 133.76KHz
        v: height 2160 start 2161 end 2169 total 2242           clock  59.66Hz
  640x480 (0x86) 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
DP-3 disconnected (normal left inverted right x axis y axis)
    Identifier: 0x45
    Timestamp:  3453569
    Subpixel:   unknown
    Clones:    
    CRTCs:      1 0 2
    Transform:  1.000000 0.000000 0.000000
                0.000000 1.000000 0.000000
                0.000000 0.000000 1.000000
               filter: 
    Content Protection: Undesired 
        supported: Undesired, Desired, Enabled
    max bpc: 12 
        range: (6, 12)
    Broadcast RGB: Automatic 
        supported: Automatic, Full, Limited 16:235
    audio: auto 
        supported: force-dvi, off, auto, on
    link-status: Good 
        supported: Good, Bad
    CONNECTOR_ID: 106 
        supported: 106
    non-desktop: 0 
        range: (0, 1)

更新 3：我尝试运行主线内核 5.6.7，希望 TB 通道绑定支持能够解决问题，但它没有。

为了回答这个问题，我为运行 18.04.3 LTS 的 XPS 13 7390“开发者版”购买了戴尔 WD19TB坞站。连接一切后，HDMI 外接显示器工作正常，但 USB 3 和千兆以太网端口根本不工作。我查看了我的设备-> Thunderbolt，扩展坞显示为“待处理”：

我点击了该屏幕中的扩展坞名称，然后弹出此对话框，要求我“授权并连接”到扩展坞：

我单击“授权并连接”按钮，在输入我的 sudo 密码后，我得到另一个对话框，指出“无法授权设备：内核错误”。

在此之后，返回设备-> Thunderbolt 屏幕，扩展坞显示错误：

戴尔支持似乎不知道如何处理 Ubuntu 用户，并将我引导到官方 Ubuntu 论坛，我也将在那里发帖。我需要为扩展坞安装一些驱动程序吗？如果是这样，什么驱动程序以及我在哪里可以得到它们？如何让戴尔 WD19TB 坞站与我的系统配合使用？

我在连接到 Lenovo Thunderbolt 3 Dock 40AF 的 Lenovo ThinkPad X1 Tablet Gen 3 上运行 Ubuntu 19.10。在扩展坞连接上，一切（以太网、USB、充电）都可以工作，但只有 HDMI 和 DisplayPort 连接不能。

我已经尝试了在 Gnome UI 中启用和禁用 Thunderbolt 访问的标准技巧，并且我也一直在关注本教程。奇怪的是该boltctl命令不会产生任何输出。我一直在寻找日志文件等，但没有找到任何可以给我更多信息的东西。

我不能（也不想）禁用 BIOS 安全功能。

任何进一步的输入怎么办？

我认为这是我第一次无法在 Google 上找到解决方案或拼凑出一个解决方案，所以我开始了。我有一个 13 英寸的 Razer 刀片和一个 Razer Core X Chroma。它可以完美且轻松地连接Windows，但我也希望能够使其在 Ubuntu 上运行。我正在全新安装，除了我更新了一些英特尔驱动程序并安装了 amd 驱动程序（对于我的 Radeon RX Vega 64 来自 amdgpu-install 脚本）。第一个（也许是最大的障碍）是我无法让 ubuntu 识别出问题的东西甚至已插入。设置 gui 仅显示标准“无法检测到 Thunderbolt。”灰色错误，而 lspci 显示以下内容输出-

lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 08)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21)
00:15.1 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #3 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)
00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Intel(R) 100 Series Chipset Family LPC Controller/eSPI Controller - 9D4E (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
01:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 32)
02:00.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02)
03:00.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02)
03:01.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02)
03:02.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02)
04:00.0 System peripheral: Intel Corporation JHL6340 Thunderbolt 3 NHI (C step) [Alpine Ridge 2C 2016] (rev 02)
05:00.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] (rev 02)
3b:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981


boltctl power -q 还显示以下内容-

supported: yes
power state: on
1 active power guards:
  guard '4'
   ├─ who: boltctl
   └─ pid: 2650

boltctl list 和 boltctl 域都没有显示任何内容。老实说，我并不关心使用 GPU，我只想能够使用连接到它的键盘和鼠标，所以如果有人可以帮助我，我向你保证 20 美元，无论如何你想要它。

我正在尝试使用用于我的 Macbook Pro 的相同 USB-C 电缆连接同一台显示器 (LG)。我的 Ubuntu 机器是戴尔 Precision，每次只能工作 1 或 2 秒，然后显示器和 PC 屏幕都会变黑，直到我拔下电缆。我如何解决它？

更新：重新启动，现在不再闪烁，但显示器的屏幕仍然无法使用；我可以在外部屏幕的边缘看到鼠标指针，但不能再移动，也不能在上面拖动任何窗口；系统设置也无奈

$ sudo lshw -C display
  *-display                 
       description: VGA compatible controller
       product: HD Graphics P630
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 04
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:137 memory:eb000000-ebffffff memory:a0000000-afffffff ioport:f000(size=64) memory:c0000-dffff

这是 xrandr 的输出：

Screen 0: minimum 320 x 200, current 3840 x 2160, maximum 8192 x 8192
eDP-1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 346mm x 194mm
   3840x2160     60.00*+  59.98    48.02    59.97  
   3200x1800     59.96    59.94  
   2880x1620     59.96    59.97  
   2560x1600     59.99    59.97  
   2560x1440     59.99    59.99    59.96    59.95  
   2048x1536     60.00  
   1920x1440     60.00  
   1856x1392     60.01  
   1792x1344     60.01  
   2048x1152     59.99    59.98    59.90    59.91  
   1920x1200     59.88    59.95  
   1920x1080     60.01    59.97    59.96    59.93  
   1600x1200     60.00  
   1680x1050     59.95    59.88  
   1600x1024     60.17  
   1400x1050     59.98  
   1600x900      59.99    59.94    59.95    59.82  
   1280x1024     60.02  
   1440x900      59.89  
   1400x900      59.96    59.88  
   1280x960      60.00  
   1440x810      60.00    59.97  
   1368x768      59.88    59.85  
   1360x768      59.80    59.96  
   1280x800      59.99    59.97    59.81    59.91  
   1152x864      60.00  
   1280x720      60.00    59.99    59.86    59.74  
   1024x768      60.04    60.00  
   960x720       60.00  
   928x696       60.05  
   896x672       60.01  
   1024x576      59.95    59.96    59.90    59.82  
   960x600       59.93    60.00  
   960x540       59.96    59.99    59.63    59.82  
   800x600       60.00    60.32    56.25  
   840x525       60.01    59.88  
   864x486       59.92    59.57  
   800x512       60.17  
   700x525       59.98  
   800x450       59.95    59.82  
   640x512       60.02  
   720x450       59.89  
   700x450       59.96    59.88  
   640x480       60.00    59.94  
   720x405       59.51    58.99  
   684x384       59.88    59.85  
   680x384       59.80    59.96  
   640x400       59.88    59.98  
   576x432       60.06  
   640x360       59.86    59.83    59.84    59.32  
   512x384       60.00  
   512x288       60.00    59.92  
   480x270       59.63    59.82  
   400x300       60.32    56.34  
   432x243       59.92    59.57  
   320x240       60.05  
   360x202       59.51    59.13  
   320x180       59.84    59.32  
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
HDMI-3 disconnected (normal left inverted right x axis y axis)