运行 Kubuntu 18.04。
最近将内核升级到 4.15.0-33。这是正常升级的一部分。
但是升级之后，联网就麻烦了，连不上wifi，连不上有线网络，蓝牙网络共享也不起作用。
唯一可行的方法是使用 USB 网络共享。
在 4.15.0-33 内核下，dkms status不产生任何输出并
sudo lshw -c network产生：
*-network
description: Wireless interface
product: RTL8723BE PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
logical name: wlo1
version: 00
serial: 40:b8:9a:2c:2f:4d
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8723be driverversion=4.15.0-33-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:37 ioport:3000(size=256) memory:f0a00000-f0a03fff
*-network
description: Ethernet interface
product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: enp2s0
version: 07
serial: 58:20:b1:7e:67:36
size: 10Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8106e-1_0.0.1 06/29/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:30 ioport:2000(size=256) memory:f0900000-f0900fff memory:f0800000-f0803fff
我重新启动到 4.15.0-29 内核并且 wifi 正常工作。
在 4.15.0-29 内核下，dkms status不产生任何输出并
sudo lshw -c network产生：
*-network
description: Wireless interface
product: RTL8723BE PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
logical name: wlo1
version: 00
serial: 40:b8:9a:2c:2f:4d
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8723be driverversion=4.15.0-29-generic firmware=N/A ip=192.168.0.104 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:37 ioport:3000(size=256) memory:f0a00000-f0a03fff
*-network
description: Ethernet interface
product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: enp2s0
version: 07
serial: 58:20:b1:7e:67:36
size: 10Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8106e-1_0.0.1 06/29/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:29 ioport:2000(size=256) memory:f0900000-f0900fff memory:f0800000-f0803fff
我目前正在运行 4.15.0-29。但是有什么方法可以启动到 4.15.0-33 并仍能访问网络吗？