在 Ubuntu 18.04 上安装 Displaylink 驱动程序失败

我一直在尝试通过 ThinkPad USB 3 Pro 扩展坞（具有 DisplayLink 标签）的 DVI 端口将额外的显示器与具有 Ubuntu 18.04 的 Lenovo IdeaPad L340 连接。所有其他驱动程序（声音、USB）都是开箱即用的，但不是显示器。

我遵循了 Ubuntu 18.04 驱动程序版本的安装步骤：5.1 https://support.displaylink.com/knowledgebase/articles/684649

但是在运行脚本的步骤中失败了：

sudo ./displaylink-driver-5.1.26.run 
Verifying archive integrity...  100%   All good.
Uncompressing DisplayLink Linux Driver 5.1.26  100%  
DisplayLink Linux Software 5.1.26 install script called: install
Distribution discovered: Ubuntu 18.04.4 LTS
WARNING: Version 1.7.0 of EVDI kernel module is already running.
Please reboot before attempting to re-install DisplayLink Linux Software.
Installation terminated.

经过一番谷歌搜索；我做了以下事情：

$ sudo ./displaylink-driver-5.1.26.run --keep --noexec

displaylink-driver-5.1.26$ sudo ./displaylink-installer.sh uninstall

DisplayLink Linux Software 5.1.26 install script called: uninstall
Distribution discovered: Ubuntu 18.04.4 LTS
Uninstalling
Removing EVDI from kernel tree, DKMS, and removing sources.
Stopping displaylink-driver systemd service
Failed to stop displaylink-driver.service: Unit displaylink-driver.service not loaded.
Failed to disable unit: Unit file displaylink-driver.service does not exist.
Removing suspend-resume hooks
Removing udev rule
Removing Core folder

Uninstallation steps complete.
Please note that the evdi kernel module is still in the memory.
A reboot is required to fully complete the uninstallation process.

由于 displaylink-driver.service 不存在，因此卸载似乎没有进行。我重新启动了几次；我什至尝试在控制台模式下运行 Ubuntu，以避免 X 服务器出现任何问题。

按照此处的步骤更改 X 服务器的配置没有帮助： https: //support.displaylink.com/knowledgebase/articles/1181623-displaylink-ubuntu-driver-after-recent-x-upgrades

这里提到的构建 DisplayLink / EVDI 都没有帮助： https ://forums.developer.nvidia.com/t/building-displaylink-evdi/73626

• lsusb 命令结果：

$lsusb
Bus 002 Device 004: ID 17ef:1017 Lenovo 
Bus 002 Device 003: ID 17e9:433f DisplayLink 
Bus 002 Device 002: ID 17ef:1016 Lenovo 
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 174f:1176 Syntek 
Bus 001 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 006: ID 0cf3:e500 Atheros Communications, Inc. 
Bus 001 Device 004: ID 17ef:1017 Lenovo 
Bus 001 Device 008: ID 04e8:6860 Samsung Electronics Co., Ltd Galaxy (MTP)
Bus 001 Device 002: ID 17ef:1016 Lenovo 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

• dkms 初始状态：

$dkms status
nvidia, 440.59, 5.3.0-59-generic, x86_64: installed

• 构建 DisplayLink / EVDI 后的 dkms 状态

$ dkms status
evdi, devel, 5.3.0-59-generic, x86_64: installed (WARNING! Diff between built and installed module!)
nvidia, 440.59, 5.3.0-59-generic, x86_64: installed

• 内核版本

$uname -a
Linux 5.3.0-59-generic #53~18.04.1-Ubuntu

我将不胜感激任何帮助；如果需要更多信息，请告诉我。

谢谢。