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。