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Ubuntu 16.04 Wifi 网络变灰 - Dell Latitude E5470

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Ubuntu 16.04 Wifi 网络变灰 - Dell Latitude E5470

我已看到许多有关 Ubuntu 各个版本中的 Wifi 问题的帖子，但似乎没有一个回复适用于我。

这是输出rfkill list：

0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
1: dell-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
2: dell-bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
3: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

这是输出sudo lshw -C network：

  *-network DISABLED      
       description: Wireless interface
       product: QCA6174 802.11ac Wireless Network Adapter
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:01:00.0
       logical name: wlp1s0
       version: 32
       serial: 40:49:0f:06:1d:1f
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=ath10k_pci driverversion=4.4.0-21-generic firmware=WLAN.RM.2.0-00180-QCARMSWPZ-1 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
       resources: irq:130 memory:e1000000-e11fffff
  *-network
       description: Ethernet interface
       product: Ethernet Connection I219-LM
       vendor: Intel Corporation
       physical id: 1f.6
       bus info: pci@0000:00:1f.6
       logical name: enp0s31f6
       version: 21
       serial: 28:f1:0e:0f:2e:23
       size: 100Mbit/s
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k duplex=full firmware=0.13-3 ip=192.168.1.110 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
       resources: irq:127 memory:e1300000-e131ffff

我在网络菜单（右上角）中看到以下两个灰色部分：“WiFi 网络”、“设备未准备好”

我花了两周时间尝试修复这台笔记本电脑上的 3 个不同 ubuntu 版本（14.10、15.10 和现在的 16.04）上的这个问题，这台笔记本电脑现在是 Windows 10 和 Ubuntu 16.04 的双启动。任何帮助都将不胜感激。

输出dmesg | grep ath：

[    8.982622] ath10k_pci 0000:01:00.0: enabling device (0000 -> 0002)
[    8.983651] ath10k_pci 0000:01:00.0: pci irq msi-x interrupts 8 irq_mode 0 reset_mode 0
[    9.260939] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/cal-pci-0000:01:00.0.bin failed with error -2
[    9.269044] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/QCA6174/hw3.0/firmware-5.bin failed with error -2
[    9.269048] ath10k_pci 0000:01:00.0: could not fetch firmware file 'ath10k/QCA6174/hw3.0/firmware-5.bin': -2
[    9.368509] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/QCA6174/hw3.0/board-2.bin failed with error -2
[   11.640870] ath10k_pci 0000:01:00.0: qca6174 hw3.2 (0x05030000, 0x00340aff sub 1028:0310) fw WLAN.RM.2.0-00180-QCARMSWPZ-1 fwapi 4 bdapi 1 htt-ver 3.26 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1 features wowlan,ignore-otp,no-4addr-pad
[   11.640873] ath10k_pci 0000:01:00.0: debug 0 debugfs 1 tracing 1 dfs 0 testmode 0
[   14.637936] ath10k_pci 0000:01:00.0: could not suspend target (-11)
[   14.705845] ath: EEPROM regdomain: 0x6c
[   14.705848] ath: EEPROM indicates we should expect a direct regpair map
[   14.705850] ath: Country alpha2 being used: 00
[   14.705850] ath: Regpair used: 0x6c
[   14.844845] ath10k_pci 0000:01:00.0 wlp1s0: renamed from wlan0
[   26.098537] ath10k_pci 0000:01:00.0: failed to enable dynamic BW: -11
[   32.098781] ath10k_pci 0000:01:00.0: could not suspend target (-11)
[   37.930829] ath10k_pci 0000:01:00.0: failed to enable dynamic BW: -11
[   43.931047] ath10k_pci 0000:01:00.0: could not suspend target (-11)
[   49.243463] ath10k_pci 0000:01:00.0: failed to enable dynamic BW: -11
[   55.243906] ath10k_pci 0000:01:00.0: could not suspend target (-11)
[   71.260298] ath10k_pci 0000:01:00.0: failed to enable dynamic BW: -11
[   77.260556] ath10k_pci 0000:01:00.0: could not suspend target (-11)
[   82.572856] ath10k_pci 0000:01:00.0: failed to enable dynamic BW: -11
[   88.573096] ath10k_pci 0000:01:00.0: could not suspend target (-11)
[  104.253467] ath10k_pci 0000:01:00.0: failed to set rx-chainmask: -11, req 0x3
[  107.253817] ath10k_pci 0000:01:00.0: failed to set arp ac override parameter: -11
[  113.253791] ath10k_pci 0000:01:00.0: could not suspend target (-11)
[  118.566289] ath10k_pci 0000:01:00.0: failed to set tx-chainmask: -11, req 0x3
[  121.566223] ath10k_pci 0000:01:00.0: failed to set arp ac override parameter: -11
[  127.566616] ath10k_pci 0000:01:00.0: could not suspend target (-11)
[  139.263049] ath10k_pci 0000:01:00.0: failed to enable dynamic BW: -11
[  145.263314] ath10k_pci 0000:01:00.0: could not suspend target (-11)
[  150.575255] ath10k_pci 0000:01:00.0: failed to set rx-chainmask: -11, req 0x3
[  153.575438] ath10k_pci 0000:01:00.0: failed to set arp ac override parameter: -11

答案1

我建议您为设备安装所需的固件。在网络连接正常的情况下，打开终端并执行以下操作：

wget http://mirrors.kernel.org/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.158_all.deb
sudo dpkg -i linux-firmware*.deb
sudo modprobe -r ath10k_pci && sudo modprobe ath10k_pci

此外，驱动程序似乎需要但找不到区域代码。我建议明确设置您的监管区域。检查您的：

sudo iw reg get

如果您选择 00，则这是一个通用的设置。请在此处查找您的设置：http://en.wikipedia.org/wiki/ISO_3166-1_alpha-2然后暂时设置一下：

sudo iw reg set IS

当然，如果不是冰岛，请替换您的国家代码。永久设置它：

gksudo gedit /etc/default/crda

如果您没有文本编辑器 gedit，请使用 nano 或 Kate 或 leafpad。

将最后一行改为：

REGDOMAIN=IS

仔细校对，保存并关闭文本编辑器。

重新启动并让我们知道它是否按预期工作。

答案2

1.从下载 https://github.com/FireWalkerX/ath10k-firmware/blob/7e56cbb94182a2fdab110cf5bfeded8fd1d44d30/QCA6174/hw3.0/board-2.bin?raw=true，然后重命名为board.bin。

2.从下载 https://github.com/FireWalkerX/ath10k-firmware/blob/7e56cbb94182a2fdab110cf5bfeded8fd1d44d30/QCA6174/hw3.0/firmware-4.bin_WLAN.RM.2.0-00180-QCARMSWPZ-1?raw=true，然后重命名为firmware-4.bin

3.将以上所有内容放入/lib/firmware/ath10k/QCA6174/hw3.0/

4.重启机器

最后，我的解决方案来自：https://bbs.archlinux.org/viewtopic.php?pid=1604345#p1604345

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