过去 7-8 个月我一直在使用 Ubuntu 16.04。我正在使用它，突然 wifi 断开连接，现在我看不到任何与 wifi 相关的选项。我猜蓝牙也消失了，因为它们都是无线的。我最近才从 ubuntu 软件安装了 Remmina
按照本网站的建议运行无线信息脚本后，其链接如下：https://paste.ubuntu.com/p/HG6x7KDjB4/
我已经尝试过了sudo service network-manager restart。
sudo lshw -class network返回：
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:07:00.0
logical name: enp7s0
version: 0c
serial: 74:e6:e2:28:47:31
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8168 driverversion=8.046.00-NAPI latency=0 link=no multicast=yes port=twisted pair
resources: irq:40 ioport:e000(size=256) memory:f7c00000-f7c00fff memory:f0000000-f0003fff
*-network
description: Ethernet interface
physical id: 2
logical name: enp0s29u1u1
serial: 72:39:83:c6:bf:92
capabilities: ethernet physical
configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.4 link=yes multicast=yes
我也尝试过按照本网站建议的手动方式：https://unixblogger.com/how-to-get-your-realtek-rtl8111rtl8168-working-updated-guide/
最后运行 autorun.sh 后，这是我的输出：
Check old driver and unload it.
rmmod r8168
Build the module and install
Makefile:976: "Cannot use CONFIG_STACK_VALIDATION=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel"
Makefile:976: "Cannot use CONFIG_STACK_VALIDATION=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel"
At main.c:160:
- SSL error:02001002:system library:fopen:No such file or directory: bss_file.c:175
- SSL error:2006D080:BIO routines:BIO_new_file:no such file: bss_file.c:178
sign-file: certs/signing_key.pem: No such file or directory
DEPMOD 4.15.0-47-generic
load module r8168
Updating initramfs. Please wait.
update-initramfs: Generating /boot/initrd.img-4.15.0-47-generic
W: Possible missing firmware /lib/firmware/i915/kbl_guc_ver9_14.bin for module i915
W: Possible missing firmware /lib/firmware/i915/bxt_guc_ver8_7.bin for module i915
Completed.