我上周买了一台联想 Z70-80，安装了 Ubuntu 14.04 Trusty Tahr。从那时起，我就一直在论坛上寻找我的无线适配器无法工作的原因。它在 Windows 10 下工作正常。以太网工作正常。我意识到可能还没有它的驱动程序：
03:00.0 网络控制器 [0280]: Qualcomm Atheros QCA6174 802.11ac 无线网络适配器 [168c:003e] (rev 20)
我运行了找到的无线信息脚本这里，结果如下：
########## wireless info START ##########
Report from: 17 Nov 2015 23:44 EST -0500
Booted last: 17 Nov 2015 23:26 EST -0500
Script from: 27 Sep 2015 00:34 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 14.04.3 LTS
Release: 14.04
Codename: trusty
##### kernel ############################
Linux 3.19.0-33-generic #38~14.04.1-Ubuntu SMP Fri Nov 6 18:17:28 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Ubuntu
##### lspci #############################
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 10)
Subsystem: Lenovo Device [17aa:3819]
Kernel driver in use: r8169
03:00.0 Network controller [0280]: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter [168c:003e] (rev 20)
Subsystem: Lenovo Device [17aa:3044]
04:00.0 3D controller [0302]: NVIDIA Corporation GM108M [GeForce 840M] [10de:1341] (rev a2)
##### lsusb #############################
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0cf3:e300 Atheros Communications, Inc.
Bus 001 Device 003: ID 174f:14be Syntek
Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
1: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
2: ideapad_bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
##### lsmod #############################
ideapad_laptop 20480 0
sparse_keymap 16384 1 ideapad_laptop
mxm_wmi 16384 1 nouveau
wmi 20480 2 mxm_wmi,nouveau
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
eth0 Link encap:Ethernet HWaddr <MAC 'eth0' [IF]>
inet addr:10.0.0.38 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: 2601:147:0:6f47:<IP6 'eth0' [IF]>/64 Scope:Global
inet6 addr: 2601:147:0:6f47:48f4:15bf:5b8a:9e86/64 Scope:Global
inet6 addr: fe80::<IP6 'eth0' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:18440 errors:0 dropped:0 overruns:0 frame:0
TX packets:12281 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:16786797 (16.7 MB) TX bytes:1558681 (1.5 MB)
##### iwconfig ##########################
eth0 no wireless extensions.
lo no wireless extensions.
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.0.0.1 0.0.0.0 UG 0 0 0 eth0
10.0.0.0 0.0.0.0 255.255.255.0 U 1 0 0 eth0
##### resolv.conf #######################
nameserver 127.0.1.1
search hsd1.md.comcast.net
##### network managers ##################
Installed:
NetworkManager
Running:
root 908 1 0 23:26 ? 00:00:00 NetworkManager
##### NetworkManager info ###############
NetworkManager Tool
State: connected (global)
- Device: eth0 [Wired connection 1] -------------------------------------------
Type: Wired
Driver: r8169
State: connected
Default: yes
HW Address: <MAC 'eth0' [IF]>
Capabilities:
Carrier Detect: yes
Speed: 1000 Mb/s
Wired Properties
Carrier: on
IPv4 Settings:
Address: 10.0.0.38
Prefix: 24 (255.255.255.0)
Gateway: 10.0.0.1
DNS: 75.75.75.75
DNS: 75.75.76.76
IPv6 Settings:
Address: 2601:147:0:6f47:48f4:15bf:5b8a:9e86
Prefix: 64
Gateway: fe80::ea89:2cff:fef9:31e1
Address: 2601:147:0:6f47:<IP6 'eth0' [IF]>
Prefix: 64
Gateway: fe80::ea89:2cff:fef9:31e1
Address: fe80::<IP6 'eth0' [IF]>
Prefix: 64
Gateway: fe80::ea89:2cff:fef9:31e1
DNS: 2001:558:feed::1
DNS: 2001:558:feed::2
##### 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 ###########
##### iw reg get ########################
Region: America/New_York (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
##### iwlist channels ###################
eth0 no frequency information.
lo no frequency information.
##### iwlist scan #######################
Sorry, try again.
eth0 Interface doesn't support scanning.
lo 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 0x10ec:0x8168 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
##### dmesg #############################
[ 20.849529] Bluetooth: hci0: don't support firmware rome 0x200
[ 21.025627] r8169 0000:02:00.0 eth0: link down (repeated 2 times)
[ 21.025680] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 23.977440] r8169 0000:02:00.0 eth0: link up
[ 23.977449] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
########## wireless info END ############
提前致谢。
答案1
组件支持比以前好多了，Ubuntu 和社区中的其他人在这方面值得更多，而不仅仅是表扬（捐赠谈话）。高通和其他制造商已经宣布开源硬件固件。然而无线和图形（英伟达！）较新的机器对卡的支持仍然很少。
如果无线功能无法使用，通常可以尝试：
升级到具有最新内核和驱动程序的发行版（有时使用带有 rmmod 和 modprobe 的新固件就可以了）。对于 QCA6174，最简单的方法是升级到 Ubuntu 15.10（您可以使用 Ubuntu 软件更新程序，而不必从头安装 15.10），因为它具有内核 4.2 和ath10k固件必需的。
奇怪的是可能升级后发生的情况是触摸板停止工作，通常通过在终端中拆卸然后连接触摸板和/或重新安装固件（例如 synaptics）来解决（可以在 askubuntu 中找到帮助）。
一般来说，在使用 Linux 时，好主意就是有一个USB鼠标和一个USB无线网卡。
反向移植是一种非常快速和方便的解决方案，可让旧内核与仅支持较新内核的软件配合使用。您需要下载适用于您的发行版的反向移植，然后下载适用于 NIC 的固件包。关于UbuntuBackports。
如果上述方法不起作用，您可以购买价格低于 15 美元且支持 Linux 的廉价双频 ac USB 无线网卡（查看其官方网站）。您可以使用它直到您的 NIC 的内核和固件发布，如果出现任何问题，它会非常方便。
如果您需要 USB 端口或有其他原因不使用 3，那么您可以购买支持 Linux 的新 NIC。英特尔产品通常在发布硬件之前就已提供良好的支持。