我刚刚安装了 Lubuntu 17.10 作为我的主要操作系统，过去我使用 Windows 7 和 Ubuntu 16.04。唯一的问题是我的无线连接非常慢，加载网页/youtube 视频需要很长时间，我的下载速度在 Windows 上为 20-30 KB/s，而 Windows 上接近 600-700 KB/s。以下是我的笔记本电脑规格：
emanuel-presario-cq57-notebook-pc
description: Computer
width: 64 bits
capabilities: smp vsyscall32
*-core
description: Motherboard
physical id: 0
*-memory
description: System memory
physical id: 0
size: 3549MiB
*-cpu
product: AMD E-450 APU with Radeon(tm) HD Graphics
vendor: Advanced Micro Devices [AMD]
physical id: 1
bus info: cpu@0
size: 1237MHz
capacity: 1650MHz
width: 64 bits
capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp x86-64 constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni monitor ssse3 cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch ibs skinit wdt hw_pstate vmmcall arat npt lbrv svm_lock nrip_save pausefilter cpufreq
*-pci:0
description: Host bridge
product: Family 14h Processor Root Complex
vendor: Advanced Micro Devices, Inc. [AMD]
physical id: 100
bus info: pci@0000:00:00.0
version: 00
width: 32 bits
clock: 66MHz
configuration: latency=32
*-display
description: VGA compatible controller
product: Wrestler [Radeon HD 6320]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 1
bus info: pci@0000:00:01.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: vga_controller bus_master cap_list rom
configuration: driver=radeon latency=0
resources: irq:29 memory:e0000000-efffffff ioport:4000(size=256) memory:f0400000-f043ffff memory:c0000-dffff
*-storage
description: SATA controller
product: SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 11
bus info: pci@0000:00:11.0
version: 00
width: 32 bits
clock: 66MHz
capabilities: storage ahci_1.0 bus_master cap_list
configuration: driver=ahci latency=64
resources: irq:19 ioport:4118(size=8) ioport:4124(size=4) ioport:4110(size=8) ioport:4120(size=4) ioport:4100(size=16) memory:f0449000-f04493ff
*-usb:0
description: USB controller
product: SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 12
bus info: pci@0000:00:12.0
version: 00
width: 32 bits
clock: 66MHz
capabilities: ohci bus_master
configuration: driver=ohci-pci latency=32
resources: irq:18 memory:f0448000-f0448fff
*-usb:1
description: USB controller
product: SB7x0/SB8x0/SB9x0 USB EHCI Controller
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 12.2
bus info: pci@0000:00:12.2
version: 00
width: 32 bits
clock: 66MHz
capabilities: ehci bus_master cap_list
configuration: driver=ehci-pci latency=32
resources: irq:17 memory:f0447000-f04470ff
*-serial
description: SMBus
product: SBx00 SMBus Controller
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 14
bus info: pci@0000:00:14.0
version: 42
width: 32 bits
clock: 66MHz
configuration: driver=piix4_smbus latency=0
resources: irq:0
*-multimedia
description: Audio device
product: SBx00 Azalia (Intel HDA)
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 14.2
bus info: pci@0000:00:14.2
version: 40
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=snd_hda_intel latency=32
resources: irq:16 memory:f0440000-f0443fff
*-isa
description: ISA bridge
product: SB7x0/SB8x0/SB9x0 LPC host controller
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 14.3
bus info: pci@0000:00:14.3
version: 40
width: 32 bits
clock: 66MHz
capabilities: isa bus_master
configuration: latency=0
*-pci:0
description: PCI bridge
product: SBx00 PCI to PCI Bridge
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 14.4
bus info: pci@0000:00:14.4
version: 40
width: 32 bits
clock: 66MHz
capabilities: pci subtractive_decode bus_master
*-usb:2
description: USB controller
product: SB7x0/SB8x0/SB9x0 USB OHCI2 Controller
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 14.5
bus info: pci@0000:00:14.5
version: 00
width: 32 bits
clock: 66MHz
capabilities: ohci bus_master
configuration: driver=ohci-pci latency=32
resources: irq:18 memory:f0446000-f0446fff
*-pci:1
description: PCI bridge
product: SB700/SB800/SB900 PCI to PCI bridge (PCIE port 0)
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 15
bus info: pci@0000:00:15.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:24 ioport:3000(size=4096) memory:f0300000-f03fffff ioport:f0000000(size=1048576)
*-generic
description: Unassigned class
product: RTS5209 PCI Express Card Reader
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
version: 01
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=rtsx_pci latency=0
resources: irq:27 memory:f0300000-f0300fff
*-pci:2
description: PCI bridge
product: SB700/SB800/SB900 PCI to PCI bridge (PCIE port 1)
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 15.1
bus info: pci@0000:00:15.1
version: 00
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:25 ioport:2000(size=4096) ioport:f0100000(size=1048576)
*-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@0000:06:00.0
logical name: eno1
version: 05
serial: 00:9c:02:89:72:a2
size: 10Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: 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=rtl_nic/rtl8105e-1.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:28 ioport:2000(size=256) memory:f0104000-f0104fff memory:f0100000-f0103fff
*-pci:3
description: PCI bridge
product: SB900 PCI to PCI bridge (PCIE port 3)
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 15.3
bus info: pci@0000:00:15.3
version: 00
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:26 memory:f0200000-f02fffff
*-network
description: Wireless interface
product: BCM4313 802.11bgn Wireless Network Adapter
vendor: Broadcom Limited
physical id: 0
bus info: pci@0000:07:00.0
logical name: wlp7s0b1
version: 01
serial: c0:18:85:30:b5:d6
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=brcmsmac driverversion=4.13.0-21-generic firmware=610.812 ip=192.168.1.4 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:23 memory:f0200000-f0203fff
*-usb:3
description: USB controller
product: SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 16
bus info: pci@0000:00:16.0
version: 00
width: 32 bits
clock: 66MHz
capabilities: ohci bus_master
configuration: driver=ohci-pci latency=32
resources: irq:18 memory:f0445000-f0445fff
*-usb:4
description: USB controller
product: SB7x0/SB8x0/SB9x0 USB EHCI Controller
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 16.2
bus info: pci@0000:00:16.2
version: 00
width: 32 bits
clock: 66MHz
capabilities: ehci bus_master cap_list
configuration: driver=ehci-pci latency=32
resources: irq:17 memory:f0444000-f04440ff
*-pci:1
description: Host bridge
product: Family 12h/14h Processor Function 0
vendor: Advanced Micro Devices, Inc. [AMD]
physical id: 101
bus info: pci@0000:00:18.0
version: 43
width: 32 bits
clock: 33MHz
*-pci:2
description: Host bridge
product: Family 12h/14h Processor Function 1
vendor: Advanced Micro Devices, Inc. [AMD]
physical id: 102
bus info: pci@0000:00:18.1
version: 00
width: 32 bits
clock: 33MHz
*-pci:3
description: Host bridge
product: Family 12h/14h Processor Function 2
vendor: Advanced Micro Devices, Inc. [AMD]
physical id: 103
bus info: pci@0000:00:18.2
version: 00
width: 32 bits
clock: 33MHz
*-pci:4
description: Host bridge
product: Family 12h/14h Processor Function 3
vendor: Advanced Micro Devices, Inc. [AMD]
physical id: 104
bus info: pci@0000:00:18.3
version: 00
width: 32 bits
clock: 33MHz
configuration: driver=k10temp
resources: irq:0
*-pci:5
description: Host bridge
product: Family 12h/14h Processor Function 4
vendor: Advanced Micro Devices, Inc. [AMD]
physical id: 105
bus info: pci@0000:00:18.4
version: 00
width: 32 bits
clock: 33MHz
*-pci:6
description: Host bridge
product: Family 12h/14h Processor Function 6
vendor: Advanced Micro Devices, Inc. [AMD]
physical id: 106
bus info: pci@0000:00:18.5
version: 00
width: 32 bits
clock: 33MHz
*-pci:7
description: Host bridge
product: Family 12h/14h Processor Function 5
vendor: Advanced Micro Devices, Inc. [AMD]
physical id: 107
bus info: pci@0000:00:18.6
version: 00
width: 32 bits
clock: 33MHz
*-pci:8
description: Host bridge
product: Family 12h/14h Processor Function 7
vendor: Advanced Micro Devices, Inc. [AMD]
physical id: 108
bus info: pci@0000:00:18.7
version: 00
width: 32 bits
clock: 33MHz
*-scsi
physical id: 2
logical name: scsi1
capabilities: emulated
*-cdrom
description: DVD-RAM writer
product: DVDRAM GT50N
vendor: hp
physical id: 0.0.0
bus info: scsi@1:0.0.0
logical name: /dev/cdrom
logical name: /dev/cdrw
logical name: /dev/dvd
logical name: /dev/dvdrw
logical name: /dev/sr0
version: MP00
capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram
configuration: ansiversion=5 status=nodisc
以下是有关网卡的一些信息：
*-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@0000:06:00.0
logical name: eno1
version: 05
serial: 00:9c:02:89:72:a2
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=rtl_nic/rtl8105e-1.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:28 ioport:2000(size=256) memory:f0104000-f0104fff memory:f0100000-f0103fff
*-network
description: Wireless interface
product: BCM4313 802.11bgn Wireless Network Adapter
vendor: Broadcom Limited
physical id: 0
bus info: pci@0000:07:00.0
logical name: wlp7s0b1
version: 01
serial: c0:18:85:30:b5:d6
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=brcmsmac driverversion=4.13.0-21-generic firmware=610.812 ip=192.168.1.4 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:23 memory:f0200000-f0203fff