我的无线网络不能用。它曾经在内核为 3.18 或更低版本时出现。如果我的内核版本高于 4.1，它将无法工作。
我想使用 ubuntu 16 并且不想降级内核。
LSPCI | grep -i 无线输出：
03:00.0 Network controller: Qualcomm Atheros AR928X Wireless Network Adapter (PCI-Express) (rev 01)
dmesg | grep ath输出：
[ 15.115060] ath: EEPROM regdomain: 0x65
[ 15.115064] ath: EEPROM indicates we should expect a direct regpair map
[ 15.115068] ath: Country alpha2 being used: 00
[ 15.115069] ath: Regpair used: 0x65
[ 15.303548] ath9k 0000:03:00.0 wlp3s0: renamed from wlan0
修改信息 ath9k输出：
filename: /lib/modules/4.4.0-21-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k.ko
license: Dual BSD/GPL
description: Support for Atheros 802.11n wireless LAN cards.
author: Atheros Communications
srcversion: F7E3AF932B15681132EA595
alias: pci:v0000168Cd00000036sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000036sv00001028sd0000020Ebc*sc*i*
alias: pci:v0000168Cd00000036sv00001043sd000085F2bc*sc*i*
alias: pci:v0000168Cd00000036sv000017AAsd00004026bc*sc*i*
alias: pci:v0000168Cd00000036sv000017AAsd00003026bc*sc*i*
alias: pci:v0000168Cd00000036sv0000105Bsd0000E099bc*sc*i*
alias: pci:v0000168Cd00000036sv0000105Bsd0000E091bc*sc*i*
alias: pci:v0000168Cd00000036sv0000105Bsd0000E081bc*sc*i*
alias: pci:v0000168Cd00000036sv0000105Bsd0000E08Fbc*sc*i*
alias: pci:v0000168Cd00000036sv0000105Bsd0000E07Fbc*sc*i*
alias: pci:v0000168Cd00000036sv0000185Fsd0000A120bc*sc*i*
alias: pci:v0000168Cd00000036sv0000185Fsd00003027bc*sc*i*
alias: pci:v0000168Cd00000036sv00001B9Asd000028A4bc*sc*i*
alias: pci:v0000168Cd00000036sv00001B9Asd000028A2bc*sc*i*
alias: pci:v0000168Cd00000036sv00001B9Asd00002813bc*sc*i*
alias: pci:v0000168Cd00000036sv00001B9Asd00002810bc*sc*i*
alias: pci:v0000168Cd00000036sv0000144Fsd00007202bc*sc*i*
alias: pci:v0000168Cd00000036sv00001A3Bsd00002F82bc*sc*i*
alias: pci:v0000168Cd00000036sv00001A3Bsd0000218Cbc*sc*i*
alias: pci:v0000168Cd00000036sv00001A3Bsd0000218Bbc*sc*i*
alias: pci:v0000168Cd00000036sv00001A3Bsd00002182bc*sc*i*
alias: pci:v0000168Cd00000036sv00001A3Bsd0000213Bbc*sc*i*
alias: pci:v0000168Cd00000036sv00001A3Bsd00002130bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000813bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000803bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000692bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00001832bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000832bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000612bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000652bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000642bc*sc*i*
alias: pci:v0000168Cd00000036sv0000168Csd0000302Cbc*sc*i*
alias: pci:v0000168Cd00000036sv0000168Csd00003027bc*sc*i*
alias: pci:v0000168Cd00000036sv0000144Dsd0000412Abc*sc*i*
alias: pci:v0000168Cd00000036sv0000144Dsd00004129bc*sc*i*
alias: pci:v0000168Cd00000036sv0000144Dsd0000411Ebc*sc*i*
alias: pci:v0000168Cd00000036sv0000144Dsd0000411Dbc*sc*i*
alias: pci:v0000168Cd00000036sv0000144Dsd0000411Cbc*sc*i*
alias: pci:v0000168Cd00000036sv0000144Dsd0000411Bbc*sc*i*
alias: pci:v0000168Cd00000036sv0000144Dsd0000411Abc*sc*i*
alias: pci:v0000168Cd00000036sv00001028sd0000020Cbc*sc*i*
alias: pci:v0000168Cd00000036sv0000103Csd00002005bc*sc*i*
alias: pci:v0000168Cd00000036sv0000103Csd0000217Fbc*sc*i*
alias: pci:v0000168Cd00000036sv0000103Csd000018E3bc*sc*i*
alias: pci:v0000168Cd00000036sv00001A3Bsd0000213Cbc*sc*i*
alias: pci:v0000168Cd00000036sv00001A3Bsd0000213Abc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000682bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd000006A2bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000662bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000672bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000622bc*sc*i*
alias: pci:v0000168Cd00000036sv0000185Fsd00003028bc*sc*i*
alias: pci:v0000168Cd00000036sv0000105Bsd0000E069bc*sc*i*
alias: pci:v0000168Cd00000036sv0000168Csd0000302Bbc*sc*i*
alias: pci:v0000168Cd00000036sv0000168Csd00003026bc*sc*i*
alias: pci:v0000168Cd00000036sv0000168Csd00003025bc*sc*i*
alias: pci:v0000168Cd00000036sv00001A3Bsd00002F8Abc*sc*i*
alias: pci:v0000168Cd00000036sv00001A3Bsd0000218Abc*sc*i*
alias: pci:v0000168Cd00000036sv00001B9Asd000028A3bc*sc*i*
alias: pci:v0000168Cd00000036sv00001B9Asd000028A1bc*sc*i*
alias: pci:v0000168Cd00000036sv00001B9Asd00002812bc*sc*i*
alias: pci:v0000168Cd00000036sv00001B9Asd00002811bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00006671bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00001842bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000842bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd000006B2bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000632bc*sc*i*
alias: pci:v0000168Cd00000036sv0000185Fsd0000A119bc*sc*i*
alias: pci:v0000168Cd00000036sv0000105Bsd0000E068bc*sc*i*
alias: pci:v0000168Cd00000036sv00001A3Bsd00002176bc*sc*i*
alias: pci:v0000168Cd00000036sv0000168Csd00003028bc*sc*i*
alias: pci:v0000168Cd00000037sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000034sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000030sv00001A56sd00002003bc*sc*i*
alias: pci:v0000168Cd00000034sv000010CFsd00001783bc*sc*i*
alias: pci:v0000168Cd00000034sv000014CDsd00000064bc*sc*i*
alias: pci:v0000168Cd00000034sv000014CDsd00000063bc*sc*i*
alias: pci:v0000168Cd00000034sv0000103Csd00001864bc*sc*i*
alias: pci:v0000168Cd00000034sv000011ADsd00006641bc*sc*i*
alias: pci:v0000168Cd00000034sv000011ADsd00006631bc*sc*i*
alias: pci:v0000168Cd00000034sv00001043sd0000850Ebc*sc*i*
alias: pci:v0000168Cd00000034sv00001A3Bsd00002110bc*sc*i*
alias: pci:v0000168Cd00000034sv00001969sd00000091bc*sc*i*
alias: pci:v0000168Cd00000034sv000017AAsd00003214bc*sc*i*
alias: pci:v0000168Cd00000034sv0000168Csd00003117bc*sc*i*
alias: pci:v0000168Cd00000034sv000011ADsd00006661bc*sc*i*
alias: pci:v0000168Cd00000034sv00001A3Bsd00002116bc*sc*i*
alias: pci:v0000168Cd00000033sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000032sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000032sv00001043sd0000850Dbc*sc*i*
alias: pci:v0000168Cd00000032sv00001B9Asd00001C01bc*sc*i*
alias: pci:v0000168Cd00000032sv00001B9Asd00001C00bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00001F95bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00001195bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00001F86bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00001186bc*sc*i*
alias: pci:v0000168Cd00000032sv00001B9Asd00002001bc*sc*i*
alias: pci:v0000168Cd00000032sv00001B9Asd00002000bc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Fsd00007197bc*sc*i*
alias: pci:v0000168Cd00000032sv0000105Bsd0000E04Fbc*sc*i*
alias: pci:v0000168Cd00000032sv0000105Bsd0000E04Ebc*sc*i*
alias: pci:v0000168Cd00000032sv000011ADsd00006628bc*sc*i*
alias: pci:v0000168Cd00000032sv000011ADsd00006627bc*sc*i*
alias: pci:v0000168Cd00000032sv00001C56sd00004001bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00002100bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00002C97bc*sc*i*
alias: pci:v0000168Cd00000032sv000017AAsd00003219bc*sc*i*
alias: pci:v0000168Cd00000032sv000017AAsd00003218bc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd0000C708bc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd0000C680bc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd0000C706bc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd0000410Fbc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd0000410Ebc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd0000410Dbc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd00004106bc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd00004105bc*sc*i*
alias: pci:v0000168Cd00000032sv0000185Fsd00003027bc*sc*i*
alias: pci:v0000168Cd00000032sv0000185Fsd00003119bc*sc*i*
alias: pci:v0000168Cd00000032sv0000168Csd00003122bc*sc*i*
alias: pci:v0000168Cd00000032sv0000168Csd00003119bc*sc*i*
alias: pci:v0000168Cd00000032sv0000105Bsd0000E075bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00002152bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd0000126Abc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00002126bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00001237bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00002086bc*sc*i*
alias: pci:v0000168Cd00000030sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000030sv00001A56sd00002001bc*sc*i*
alias: pci:v0000168Cd00000030sv00001A56sd00002000bc*sc*i*
alias: pci:v0000168Cd0000002Esv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Dsv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Csv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Bsv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Bsv00001A3Bsd00002C37bc*sc*i*
alias: pci:v0000168Cd0000002Asv000010CFsd00001536bc*sc*i*
alias: pci:v0000168Cd0000002Asv000010CFsd0000147Dbc*sc*i*
alias: pci:v0000168Cd0000002Asv000010CFsd0000147Cbc*sc*i*
alias: pci:v0000168Cd0000002Asv0000185Fsd0000309Dbc*sc*i*
alias: pci:v0000168Cd0000002Asv00001A32sd00000306bc*sc*i*
alias: pci:v0000168Cd0000002Asv000011ADsd00006642bc*sc*i*
alias: pci:v0000168Cd0000002Asv000011ADsd00006632bc*sc*i*
alias: pci:v0000168Cd0000002Asv0000105Bsd0000E01Fbc*sc*i*
alias: pci:v0000168Cd0000002Asv00001A3Bsd00001C71bc*sc*i*
alias: pci:v0000168Cd0000002Asv*sd*bc*sc*i*
alias: pci:v0000168Cd00000029sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000027sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000024sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000023sv*sd*bc*sc*i*
alias: platform:qca956x_wmac
alias: platform:qca953x_wmac
alias: platform:qca955x_wmac
alias: platform:ar934x_wmac
alias: platform:ar933x_wmac
alias: platform:ath9k
depends: mac80211,ath9k_hw,ath9k_common,cfg80211,ath
intree: Y
vermagic: 4.4.0-21-generic SMP mod_unload modversions
parm: debug:Debugging mask (uint)
parm: nohwcrypt:Disable hardware encryption (int)
parm: blink:Enable LED blink on activity (int)
parm: btcoex_enable:Enable wifi-BT coexistence (int)
parm: bt_ant_diversity:Enable WLAN/BT RX antenna diversity (int)
parm: ps_enable:Enable WLAN PowerSave (int)
parm: use_chanctx:Enable channel context for concurrency (int)