Dell Latitude 7480 上的 Wifi 无法使用

Dell Latitude 7480 上的 Wifi 无法使用

我正在使用装有 Ubuntu 14.04 的 Dell Latitude 7480 笔记本电脑。我当前使用的内核版本是 v4.4.0.116-generic。WiFi 目前无法使用。我按照此处给出的说明操作-Ubuntu 16.04 无法识别英特尔 WiFi 卡并且 WiFi 确实短暂地工作过。但是当我将内核升级到 v4.10 或 v4.11 时,系统停止工作,但 WiFi 连接可用。WiFi 在 v4.5 下不起作用。

网络诊断脚本的输出如下-

    ########## wireless info START ##########

Report from: 13 Mar 2018 15:27 GMT +0000

Booted last: 13 Mar 2018 14:49 GMT +0000

Script from: 10 Jan 2018 20:04 UTC +0000

##### release ###########################

Distributor ID: Ubuntu
Description:    Ubuntu 14.04.5 LTS
Release:    14.04
Codename:   trusty

##### kernel ############################

Linux 4.4.0-116-generic #140~14.04.1-Ubuntu SMP Fri Feb 16 09:25:20 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, quiet, splash, vt.handoff=7

##### desktop ###########################

Ubuntu

##### lspci #############################

00:1f.6 Ethernet controller [0200]: Intel Corporation Device [8086:15d7] (rev 21)
    Subsystem: Dell Device [1028:07a0]
    Kernel driver in use: e1000e

02:00.0 Network controller [0280]: Intel Corporation Device [8086:24fd] (rev 78)
    Subsystem: Intel Corporation Device [8086:0050]

##### lsusb #############################

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 0bda:5650 Realtek Semiconductor Corp. 
Bus 001 Device 004: ID 0a5c:5832 Broadcom Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

##### PCMCIA card info ##################

##### rfkill ############################

1: dell-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
2: dell-bluetooth: Bluetooth
    Soft blocked: yes
    Hard blocked: no

##### lsmod #############################

dell_wmi               16384  0 
dell_laptop            20480  0 
dcdbas                 16384  1 dell_laptop
wmi                    20480  2 dell_led,dell_wmi
video                  40960  3 i915_bpo,dell_wmi,dell_laptop
sparse_keymap          16384  2 dell_wmi,intel_hid

##### interfaces ########################

[/etc/network/interfaces]
auto lo
iface lo inet loopback

##### ifconfig ##########################

eth0      Link encap:Ethernet  HWaddr <MAC 'eth0' [IF1]>  
      inet addr:172.22.70.173  Bcast:172.22.255.255  Mask:255.255.0.0
      inet6 addr: fe80::<IP6 'eth0' [IF1]>/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:272874 errors:0 dropped:0 overruns:0 frame:0
      TX packets:24057 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000 
      RX bytes:97183114 (97.1 MB)  TX bytes:3638783 (3.6 MB)
      Interrupt:16 Memory:ef200000-ef220000 

lo        Link encap:Local Loopback  
      inet addr:127.0.0.1  Mask:255.0.0.0
      inet6 addr: ::1/128 Scope:Host
      UP LOOPBACK RUNNING  MTU:65536  Metric:1
      RX packets:4208 errors:0 dropped:0 overruns:0 frame:0
      TX packets:4208 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1 
      RX bytes:408782 (408.7 KB)  TX bytes:408782 (408.7 KB)

##### iwconfig ##########################

lo        no wireless extensions.

eth0      no wireless extensions.

##### route #############################

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         172.22.1.1      0.0.0.0         UG    0      0        0 eth0
172.22.0.0      0.0.0.0         255.255.0.0     U     1      0        0 eth0

##### resolv.conf #######################

nameserver 127.0.1.1
search windows.ebi.ac.uk ebi.ac.uk

##### network managers ##################

Installed:

    NetworkManager

Running:

root       774     1  0 14:49 ?        00:00:00 NetworkManager

##### NetworkManager info ###############

NetworkManager Tool

State: connected (global)

- Device: eth0  [Wired connection 1] -------------------------------------------
  Type:              Wired
  Driver:            e1000e
  State:             connected
  Default:           yes
  HW Address:        <MAC 'eth0' [IF1]>

  Capabilities:
    Carrier Detect:  yes
    Speed:           1000 Mb/s

  Wired Properties
    Carrier:         on

  IPv4 Settings:
    Address:         172.22.70.173
    Prefix:          16 (255.255.0.0)
    Gateway:         172.22.1.1

    DNS:             172.22.2.8
    DNS:             172.22.2.10
    DNS:             172.22.2.9

##### NetworkManager.state ##############

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true

##### NetworkManager.conf ###############

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

[ifupdown]
managed=false

##### NetworkManager profiles ###########

[[/etc/NetworkManager/system-connections/VM380140-5G]] (600 root)
[connection] id=VM380140-5G | type=802-11-wireless
[802-11-wireless] ssid=VM380140-5G | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto

[[/etc/NetworkManager/system-connections/EBI]] (600 root)
[ipv6] method=auto
[connection] id=EBI | type=802-11-wireless
[802-11-wireless] ssid=EBI | mac-address=<MAC address>
[ipv4] method=auto

##### Netplan config ####################

##### iw reg get ########################

Region: Europe/London (based on set time zone)

country 00:
    (2402 - 2472 @ 40), (6, 20)
    (2457 - 2482 @ 40), (6, 20), PASSIVE-SCAN
    (2474 - 2494 @ 20), (6, 20), NO-OFDM, PASSIVE-SCAN
    (5170 - 5250 @ 160), (6, 20), PASSIVE-SCAN
    (5250 - 5330 @ 160), (6, 20), DFS, PASSIVE-SCAN
    (5490 - 5730 @ 160), (6, 20), DFS, PASSIVE-SCAN
    (5735 - 5835 @ 80), (6, 20), PASSIVE-SCAN
    (57240 - 63720 @ 2160), (N/A, 0)

##### iwlist channels ###################

lo        no frequency information.

eth0      no frequency information.

##### iwlist scan #######################

lo        Interface doesn't support scanning.

eth0      Interface doesn't support scanning.

##### module infos ######################

##### module parameters #################

##### /etc/modules ######################

lp
rtc

##### modprobe options ##################

[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci

[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac

[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off

[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211

[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en

##### rc.local ##########################

exit 0

##### pm-utils ##########################

##### udev rules ########################

[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x8086:0x15d7 (e1000e)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF1]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x8086:0x24fd (iwlwifi)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"

##### dmesg #############################

[    3.924048] i915_bpo 0000:00:02.0: Direct firmware load for i915/kbl_dmc_ver1.bin failed with error -2
[    3.924053] i915_bpo 0000:00:02.0: Failed to load DMC firmware [https://01.org/linuxgraphics/intel-linux-graphics-firmwares], disabling runtime power management.
[    4.551782] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[    7.362110] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[    7.362145] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 1823.660741] e1000e: eth0 NIC Link is Down
[ 1865.597690] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx

########## wireless info END ############

是否有任何驱动程序可以安装或将内核升级到 WiFi 可以工作但系统不会停止工作的版本?

答案1

我建议您下载适用于 Ubuntu 16.04.3(或更高版本)的 .iso,其中包含内核版本 4.10.0-28 并涵盖您的 24fd 设备。您可以在此处找到它:http://old-releases.ubuntu.com/releases/16.04.3/

尝试实时会话,一旦发现包括无线在内的一切都正常工作,就安装它。

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