我刚接触 Ubuntu，因为我刚从 Windows 转过来。我想说的是，Ubuntu 搭配 Gnome 速度更快、更流畅，而且 UI 非常棒！
然而，尽管距离 Wi-Fi 2 米远，我似乎还是无法稳定地连接到它。我甚至把笔记本电脑放在天线旁边，但我仍然收到一条错误消息，提示：
连接失败：激活网络连接失败
我不认为这是一个物理问题，因为我的所有设备都可以连接到它（Kindle Fire，各种智能手机......）
我尝试安装 Realtek 卡的新内核，但仍然出现相同的错误。
有人能给我建议吗？
谢谢！
编辑 1：“lshw”的输出
description: Notebook
product: Hero Book (N/A)
vendor: CHUWI INNOVATION LIMITED
version: Type1 - TBD by OEM
serial: HeroBookR64G19073703
width: 64 bits
capabilities: smbios-2.8 dmi-2.8 smp vsyscall32
configuration: boot=normal chassis=notebook family=N/A sku=N/A uuid=F75E53A5-0958-AC47-AFBA-AE4776CF52E1
*-core
description: Motherboard
product: N/A
vendor: N/A
physical id: 0
version: Type2 - Board Version
serial: HeroBookR64G19073703
slot: Type2 - Board Chassis Location
*-firmware
description: BIOS
vendor: INSYDE Corp.
physical id: 0
version: E115C.CHUWI.B011
date: 01/19/2019
size: 64KiB
capacity: 3008KiB
capabilities: pci upgrade shadowing cdboot bootselect edd int9keyboard int14serial int17printer int10video acpi usb zipboot biosbootspecification netboot uefi
*-cpu
description: CPU
product: Intel(R) Atom(TM) x5-E8000 CPU @ 1.04GHz
vendor: Intel Corp.
physical id: 4
bus info: cpu@0
version: Intel(R) Atom(TM) x5-E8000 CPU @ 1.04GHz
serial: To Be Filled By O.E.M.
slot: CHV
size: 902MHz
capacity: 2GHz
width: 64 bits
clock: 83MHz
capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology tsc_reliable nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes rdrand lahf_lm 3dnowprefetch epb pti ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat md_clear cpufreq
configuration: cores=4 enabledcores=4 threads=4
*-cache:0
description: L1 cache
physical id: 6
slot: L1 Cache
size: 32KiB
capacity: 32KiB
capabilities: synchronous internal write-back instruction
configuration: level=1
*-cache:1
description: L2 cache
physical id: 7
slot: L2 Cache
size: 1MiB
capacity: 1MiB
capabilities: synchronous internal write-back unified
configuration: level=2
*-cache
description: L1 cache
physical id: 5
slot: L1 Cache
size: 24KiB
capacity: 24KiB
capabilities: synchronous internal write-back data
configuration: level=1
*-memory
description: System Memory
physical id: 23
slot: System board or motherboard
size: 4GiB
*-bank:0
description: DIMM DDR3 Synchronous 1066 MHz (0.9 ns)
vendor: 0000
physical id: 0
serial: 00000000
slot: ChannelA-DIMM0
size: 2GiB
width: 8 bits
clock: 1066MHz (0.9ns)
*-bank:1
description: DIMM DDR3 Synchronous 1066 MHz (0.9 ns)
vendor: 0000
physical id: 1
serial: 00000000
slot: ChannelB-DIMM0
size: 2GiB
width: 8 bits
clock: 1066MHz (0.9ns)
*-pci
description: Host bridge
product: Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 35
width: 32 bits
clock: 33MHz
configuration: driver=iosf_mbi_pci
resources: irq:0
*-display
description: VGA compatible controller
product: Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 35
width: 64 bits
clock: 33MHz
capabilities: pm msi vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:120 memory:90000000-90ffffff memory:80000000-8fffffff ioport:1000(size=64) memory:c0000-dffff
*-generic:0
description: Signal processing controller
product: Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Power Management Controller
vendor: Intel Corporation
physical id: b
bus info: pci@0000:00:0b.0
version: 35
width: 64 bits
clock: 33MHz
capabilities: msi pm bus_master cap_list
configuration: driver=proc_thermal latency=0
resources: irq:118 memory:91218000-91218fff
*-usb
description: USB controller
product: Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller
vendor: Intel Corporation
physical id: 14
bus info: pci@0000:00:14.0
version: 35
width: 64 bits
clock: 33MHz
capabilities: pm msi xhci bus_master cap_list
configuration: driver=xhci_hcd latency=0
resources: irq:115 memory:91200000-9120ffff
*-usbhost:0
product: xHCI Host Controller
vendor: Linux 5.3.0-46-generic xhci-hcd
physical id: 0
bus info: usb@1
logical name: usb1
version: 5.03
capabilities: usb-2.00
configuration: driver=hub slots=7 speed=480Mbit/s
*-usb:0
description: Video
product: USB 2.0 Camera
vendor: Sonix Technology Co., Ltd.
physical id: 1
bus info: usb@1:1
version: 0.00
capabilities: usb-2.00
configuration: driver=uvcvideo maxpower=500mA speed=480Mbit/s
*-usb:1
description: USB hub
product: USB 2.0 Hub
vendor: Terminus Technology Inc.
physical id: 4
bus info: usb@1:4
version: 1.11
capabilities: usb-2.00
configuration: driver=hub maxpower=100mA slots=4 speed=480Mbit/s
*-usb
description: Generic USB device
product: USB2.0-CRW
vendor: Generic
physical id: 2
bus info: usb@1:4.2
version: 39.60
serial: 20100201396000000
capabilities: usb-2.00
configuration: driver=rtsx_usb maxpower=500mA speed=480Mbit/s
*-usb:2
description: Bluetooth wireless interface
product: 802.11n WLAN Adapter
vendor: Realtek
physical id: 5
bus info: usb@1:5
version: 2.00
serial: 00e04c000001
capabilities: usb-2.10 bluetooth
configuration: driver=rtl8xxxu maxpower=500mA speed=480Mbit/s
*-usbhost:1
product: xHCI Host Controller
vendor: Linux 5.3.0-46-generic xhci-hcd
physical id: 1
bus info: usb@2
logical name: usb2
version: 5.03
capabilities: usb-3.00
configuration: driver=hub slots=6 speed=5000Mbit/s
*-generic:1
description: Encryption controller
product: Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine
vendor: Intel Corporation
physical id: 1a
bus info: pci@0000:00:1a.0
version: 35
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list
configuration: driver=mei_txe latency=0
resources: irq:119 memory:91100000-911fffff memory:91000000-910fffff
*-multimedia
description: Audio device
product: Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series High Definition Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 35
width: 64 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:121 memory:91210000-91213fff
*-isa
description: ISA bridge
product: Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU
vendor: Intel Corporation
physical id: 1f
bus info: pci@0000:00:1f.0
version: 35
width: 32 bits
clock: 33MHz
capabilities: isa bus_master cap_list
configuration: driver=lpc_ich latency=0
resources: irq:0
*-serial UNCLAIMED
description: SMBus
product: Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx SMBus Controller
vendor: Intel Corporation
physical id: 1f.3
bus info: pci@0000:00:1f.3
version: 35
width: 32 bits
clock: 33MHz
capabilities: pm cap_list
configuration: latency=0
resources: memory:91219000-9121901f ioport:1040(size=32)
*-battery
description: Lithium Ion Battery
product: SR Real Battery
vendor: Intel SR 1
physical id: 1
version: Date
serial: 123456789
slot: I2C2
configuration: voltage=3.8V
*-power UNCLAIMED
description: OEM Define 1
product: OEM Define 5
vendor: OEM Define 2
physical id: 2
version: OEM Define 6
serial: OEM Define 3
capacity: 75mWh
*-network
description: Wireless interface
physical id: 3
bus info: usb@1:5
logical name: wlxac5d5c9422c5
serial: ac:5d:5c:94:22:c5
capabilities: ethernet physical wireless
configuration: broadcast=yes driver=rtl8xxxu driverversion=5.3.0-46-generic firmware=N/A ip=192.168.0.149 link=yes multicast=yes wireless=IEEE 802.11
编辑 2：添加了“lsusb”输出
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0bda:b720 Realtek Semiconductor Corp.
Bus 001 Device 005: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 003: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 001 Device 002: ID 0c45:6321 Microdia
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
编辑 3：尝试通过以下方式安装“rtl8723bu”https://github.com/lwfinger/rtl8723bu/blob/master/README.md
结果：安装了 RealTek 的 rtl8723bu 驱动程序，0bda:b720，同时将 rtl8xxu 列入黑名单。尽管如此，我仍然收到较弱的信号，PC 有时无法识别 Wifi 信号，尽管距离它 10 厘米。考虑购买 USB 适配器来解决这个问题，但目前为 TP-Link 安装新驱动程序可能很麻烦。
是什么让我继续前进：我真的很喜欢 Ubuntu，我爱上了它的流畅度、用户界面、应用程序……还不想放弃！我真的不想回到 Windows 10，因为它感觉很笨重。