ubuntu 16.04wifi链接问题,求不吝赐教

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superaliu
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注册时间: 2018-01-16 16:02
系统: win7

ubuntu 16.04wifi链接问题,求不吝赐教

#1

帖子 superaliu » 2018-01-16 16:10

这几天可折腾坏了,之前装的16.04wifi链接一直很稳定,前几天突然之间无法链接wifi了,然后网上的各种方法都用了,什么软件更新,重启网卡,,,还是不行,最后上国外一个论坛看到好像是16.04本身的bug。

然后我抱着重装解决一切的想法,就给重装了16.04 优麒麟版本,刚装好的时候还没问题,结果今天休眠后又出现那问题。。。

悲伤,难过,,,请问我是不是应该重装官方的版本,or直接升级到17.04去,,,

但是16.04是长期支持的,过段时间还需要用这个版本学一门课程,,,

求大神给点意见啊 :Cry

真的,国内外各种博客,各种论坛,各中方法都试过了,难道我电脑有问题?不是双系统,就一个Ubuntu。
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vickycq
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Re: ubuntu 16.04wifi链接问题,求不吝赐教

#2

帖子 vickycq » 2018-01-16 17:02

执行以下指令将结果全部复制贴上来

代码: 全选

uname -a
lspci -knn | grep -iA2 net
sudo lshw -numeric -C net
sudo ifconfig -a
superaliu 写了:无法链接wifi了
详细描述如何无法连接 wifi,观察到什么现象
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superaliu
帖子: 5
注册时间: 2018-01-16 16:02
系统: win7

Re: ubuntu 16.04wifi链接问题,求不吝赐教

#3

帖子 superaliu » 2018-01-16 18:39

vickycq 写了:执行以下指令将结果全部复制贴上来

代码: 全选

uname -a
lspci -knn | grep -iA2 net
sudo lshw -numeric -C net
sudo ifconfig -a
superaliu 写了:无法链接wifi了
详细描述如何无法连接 wifi,观察到什么现象
谢谢大佬。。。听从实验室哥们的意见,直接用随身wifi解决了。这估摸着是最快的方法了。

不过问题的确还是存在
QQ图片20180116183504.png
QQ图片20180116183523.png
QQ图片20180116183523.png (207.27 KiB) 查看 2100 次
QQ图片20180116183545.png
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vickycq
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Re: ubuntu 16.04wifi链接问题,求不吝赐教

#4

帖子 vickycq » 2018-01-16 19:33

lspci 看不到无线网卡设备,执行以下指令将结果全部复制贴上来

代码: 全选

lspci
你的电脑配备的什么无线网卡?不知道的话查一下
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superaliu
帖子: 5
注册时间: 2018-01-16 16:02
系统: win7

Re: ubuntu 16.04wifi链接问题,求不吝赐教

#5

帖子 superaliu » 2018-01-16 20:58

vickycq 写了:lspci 看不到无线网卡设备,执行以下指令将结果全部复制贴上来

代码: 全选

lspci
你的电脑配备的什么无线网卡?不知道的话查一下
superaliu@super:~$ lspci
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 02)
00:01.0 PCI bridge: Intel Corporation Core Processor PCI Express x16 Root Port (rev 02)
00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)
00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 05)
00:1c.2 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 (rev 05)
00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 05)
00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5)
00:1f.0 ISA bridge: Intel Corporation HM55 Chipset LPC Interface Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation GT218M [GeForce 310M] (rev a2)
01:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1)
06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 02)
ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 02)
ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 02)
ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 02)
ff:02.1 Host bridge: Intel Corporation 1st Generation Core i3/5/7 Processor QPI Physical 0 (rev 02)
ff:02.2 Host bridge: Intel Corporation 1st Generation Core i3/5/7 Processor Reserved (rev 02)
ff:02.3 Host bridge: Intel Corporation 1st Generation Core i3/5/7 Processor Reserved (rev 02)


网卡应该是

lspci | grep -i net
06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 02)
superaliu
帖子: 5
注册时间: 2018-01-16 16:02
系统: win7

Re: ubuntu 16.04wifi链接问题,求不吝赐教

#6

帖子 superaliu » 2018-01-16 21:02

vickycq 写了:lspci 看不到无线网卡设备,执行以下指令将结果全部复制贴上来

代码: 全选

lspci
你的电脑配备的什么无线网卡?不知道的话查一下
superaliu@super:~$ lspci -v
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 02)
Subsystem: Lenovo Core Processor DRAM Controller
Flags: bus master, fast devsel, latency 0
Capabilities: <access denied>

00:01.0 PCI bridge: Intel Corporation Core Processor PCI Express x16 Root Port (rev 02) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 24
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 00004000-00004fff
Memory behind bridge: d2000000-d30fffff
Prefetchable memory behind bridge: 00000000c0000000-00000000d1ffffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)
Subsystem: Lenovo 5 Series/3400 Series Chipset HECI Controller
Flags: bus master, fast devsel, latency 0, IRQ 28
Memory at d9106100 (64-bit, non-prefetchable)
Capabilities: <access denied>
Kernel driver in use: mei_me
Kernel modules: mei_me

00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05) (prog-if 20 [EHCI])
Subsystem: Lenovo 5 Series/3400 Series Chipset USB2 Enhanced Host Controller
Flags: bus master, medium devsel, latency 0, IRQ 16
Memory at d9105c00 (32-bit, non-prefetchable)
Capabilities: <access denied>
Kernel driver in use: ehci-pci

00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
Subsystem: Lenovo 5 Series/3400 Series Chipset High Definition Audio
Flags: bus master, fast devsel, latency 0, IRQ 29
Memory at d9100000 (64-bit, non-prefetchable)
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel

00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 05) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 17
Bus: primary=00, secondary=02, subordinate=05, sec-latency=0
I/O behind bridge: 00003000-00003fff
Memory behind bridge: d8100000-d90fffff
Prefetchable memory behind bridge: 00000000d3100000-00000000d40fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:1c.2 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 (rev 05) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 18
Bus: primary=00, secondary=06, subordinate=06, sec-latency=0
I/O behind bridge: 00002000-00002fff
Memory behind bridge: d7100000-d80fffff
Prefetchable memory behind bridge: 00000000d4100000-00000000d50fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 05) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 17
Bus: primary=00, secondary=07, subordinate=0a, sec-latency=0
I/O behind bridge: 00001000-00001fff
Memory behind bridge: d6100000-d70fffff
Prefetchable memory behind bridge: 00000000d5100000-00000000d60fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05) (prog-if 20 [EHCI])
Subsystem: Lenovo 5 Series/3400 Series Chipset USB2 Enhanced Host Controller
Flags: bus master, medium devsel, latency 0, IRQ 23
Memory at d9105800 (32-bit, non-prefetchable)
Capabilities: <access denied>
Kernel driver in use: ehci-pci

00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5) (prog-if 01 [Subtractive decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=0b, subordinate=0b, sec-latency=32
Capabilities: <access denied>

00:1f.0 ISA bridge: Intel Corporation HM55 Chipset LPC Interface Controller (rev 05)
Subsystem: Lenovo HM55 Chipset LPC Interface Controller
Flags: bus master, medium devsel, latency 0
Capabilities: <access denied>
Kernel driver in use: lpc_ich
Kernel modules: lpc_ich

00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller (rev 05) (prog-if 01 [AHCI 1.0])
Subsystem: Lenovo 5 Series/3400 Series Chipset 4 port SATA AHCI Controller
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 26
I/O ports at 5048
I/O ports at 5054
I/O ports at 5040
I/O ports at 5050
I/O ports at 5020
Memory at d9105000 (32-bit, non-prefetchable)
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci

00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 05)
Subsystem: Lenovo 5 Series/3400 Series Chipset SMBus Controller
Flags: medium devsel, IRQ 11
Memory at d9106000 (64-bit, non-prefetchable) [size=256]
I/O ports at 5000 [size=32]
Kernel modules: i2c_i801

01:00.0 VGA compatible controller: NVIDIA Corporation GT218M [GeForce 310M] (rev a2) (prog-if 00 [VGA controller])
Subsystem: Lenovo GT218M [GeForce 310M]
Flags: bus master, fast devsel, latency 0, IRQ 27
Memory at d2000000 (32-bit, non-prefetchable) [size=16M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
Memory at d0000000 (64-bit, prefetchable) [size=32M]
I/O ports at 4000 [size=128]
Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: nouveau
Kernel modules: nvidiafb, nouveau

01:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1)
Subsystem: Lenovo High Definition Audio Controller
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at d3000000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel

06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 02)
Subsystem: Lenovo RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
Flags: bus master, fast devsel, latency 0, IRQ 25
I/O ports at 2000 [size=256]
Memory at d4110000 (64-bit, prefetchable) [size=4K]
Memory at d4100000 (64-bit, prefetchable) [size=64K]
Expansion ROM at d7100000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: r8169
Kernel modules: r8169

ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 02)
Subsystem: Lenovo Core Processor QuickPath Architecture Generic Non-core Registers
Flags: bus master, fast devsel, latency 0

ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 02)
Subsystem: Lenovo Core Processor QuickPath Architecture System Address Decoder
Flags: bus master, fast devsel, latency 0

ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 02)
Subsystem: Lenovo Core Processor QPI Link 0
Flags: bus master, fast devsel, latency 0

ff:02.1 Host bridge: Intel Corporation 1st Generation Core i3/5/7 Processor QPI Physical 0 (rev 02)
Subsystem: Lenovo 1st Generation Core i3/5/7 Processor QPI Physical 0
Flags: bus master, fast devsel, latency 0

ff:02.2 Host bridge: Intel Corporation 1st Generation Core i3/5/7 Processor Reserved (rev 02)
Subsystem: Lenovo 1st Generation Core i3/5/7 Processor Reserved
Flags: bus master, fast devsel, latency 0

ff:02.3 Host bridge: Intel Corporation 1st Generation Core i3/5/7 Processor Reserved (rev 02)
Subsystem: Lenovo 1st Generation Core i3/5/7 Processor Reserved
Flags: bus master, fast devsel, latency 0

没找到,,, :Noting
superaliu
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Re: ubuntu 16.04wifi链接问题,求不吝赐教

#7

帖子 superaliu » 2018-01-16 21:10

superaliu@super:~$ lspci
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 02)
00:01.0 PCI bridge: Intel Corporation Core Processor PCI Express x16 Root Port (rev 02)
00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)
00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 05)
00:1c.2 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 (rev 05)
00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 05)
00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5)
00:1f.0 ISA bridge: Intel Corporation HM55 Chipset LPC Interface Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation GT218M [GeForce 310M] (rev a2)
01:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1)
06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 02)
ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 02)
ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 02)
ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 02)
ff:02.1 Host bridge: Intel Corporation 1st Generation Core i3/5/7 Processor QPI Physical 0 (rev 02)
ff:02.2 Host bridge: Intel Corporation 1st Generation Core i3/5/7 Processor Reserved (rev 02)
ff:02.3 Host bridge: Intel Corporation 1st Generation Core i3/5/7 Processor Reserved (rev 02)

好像没看到无线网卡network controller,,, :Noting
但是肯定是有的吧
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vickycq
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Re: ubuntu 16.04wifi链接问题,求不吝赐教

#8

帖子 vickycq » 2018-01-18 15:48

这台机器是什么型号的?执行以下指令看看

代码: 全选

cat /sys/class/dmi/id/{sys_vendor,product_name}
会不会不是 PCI 无线网卡?
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