我的情况：
我已经在新 HP 笔记本电脑上安装了 Ubuntu 14.04 LTS。
我的问题：
我的系统在启动后能够连接到我的 wifi 路由器，但几分钟后（30-45 分钟）互联网无法工作，即使 wifi 状态显示为已连接。当 wifi 状态显示为已连接时，我执行了 wireless_script，但互联网仍然无法工作。
请找到无线信息.txt
########## wireless info START ##########
Report from: 12 Apr 2015 23:13 IST +0530
Booted last: 12 Apr 2015 22:53 IST +0530
Script from: 06 Apr 2015 17:23 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 14.04.2 LTS
Release: 14.04
Codename: trusty
##### kernel ############################
Linux 3.16.0-33-generic #44~14.04.1-Ubuntu SMP Fri Mar 13 10:33:29 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Ubuntu
##### lspci #############################
08:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 07)
Subsystem: Hewlett-Packard Company Device [103c:2337]
Kernel driver in use: r8169
0a:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]
Subsystem: Hewlett-Packard Company Device [103c:2231]
Kernel driver in use: rtl8723be
##### lsusb #############################
Bus 001 Device 002: ID 8087:8001 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 004: ID 04f2:b40e Chicony Electronics Co., Ltd
Bus 002 Device 003: ID 0bda:b001 Realtek Semiconductor Corp.
Bus 002 Device 002: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### lsmod #############################
hp_wmi 14109 0
sparse_keymap 13948 1 hp_wmi
rtl8723be 85054 0
btcoexist 50304 1 rtl8723be
rtl8723_common 23361 1 rtl8723be
rtl_pci 26690 1 rtl8723be
rtlwifi 64255 2 rtl_pci,rtl8723be
mac80211 652718 3 rtl_pci,rtlwifi,rtl8723be
cfg80211 494362 2 mac80211,rtlwifi
mxm_wmi 13021 1 nouveau
wmi 19193 3 hp_wmi,mxm_wmi,nouveau
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
eth0 Link encap:Ethernet HWaddr <MAC 'eth0' [IF]>
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
wlan0 Link encap:Ethernet HWaddr <MAC 'wlan0' [IF]>
inet addr:192.168.0.100 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1000 Metric:1
RX packets:7051 errors:0 dropped:0 overruns:0 frame:0
TX packets:6940 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1940264 (1.9 MB) TX bytes:1229806 (1.2 MB)
##### iwconfig ##########################
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"Katrina kaif"
Mode:Managed Frequency:2.457 GHz Access Point: <MAC 'Katrina kaif' [AN7]>
Bit Rate=72.2 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=70/70 Signal level=-10 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:17 Missed beacon:0
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 wlan0
192.168.0.0 0.0.0.0 255.255.255.0 U 9 0 0 wlan0
##### resolv.conf #######################
nameserver 127.0.1.1
##### NetworkManager info ###############
NetworkManager Tool
State: connected (global)
- Device: wlan0 [Katrina kaif] ------------------------------------------------
Type: 802.11 WiFi
Driver: rtl8723be
State: connected
Default: yes
HW Address: <MAC 'wlan0' [IF]>
Capabilities:
Speed: 72 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
ArpanPrateek: Infra, <MAC 'ArpanPrateek' [AN1]>, Freq 2412 MHz, Rate 54 Mb/s, Strength 30 WPA WPA2
mehack: Infra, <MAC 'mehack' [AN2]>, Freq 2412 MHz, Rate 54 Mb/s, Strength 44 WPA WPA2
hell: Infra, <MAC 'hell' [AN3]>, Freq 2452 MHz, Rate 54 Mb/s, Strength 30 WPA WPA2
crusaders: Infra, <MAC 'crusaders' [AN4]>, Freq 2457 MHz, Rate 54 Mb/s, Strength 30 WPA WPA2
PrAneesh: Infra, <MAC 'PrAneesh' [AN5]>, Freq 2412 MHz, Rate 54 Mb/s, Strength 34 WPA2
andhra4infy: Infra, <MAC 'andhra4infy' [AN6]>, Freq 2412 MHz, Rate 54 Mb/s, Strength 30 WPA WPA2
*Katrina kaif: Infra, <MAC 'Katrina kaif' [AN7]>, Freq 2457 MHz, Rate 54 Mb/s, Strength 46 WPA WPA2
Rockstar: Infra, <MAC 'Rockstar' [AN8]>, Freq 2437 MHz, Rate 54 Mb/s, Strength 44 WPA2
IPv4 Settings:
Address: 192.168.0.100
Prefix: 24 (255.255.255.0)
Gateway: 192.168.0.1
DNS: 192.168.0.1
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: r8169
State: unavailable
Default: no
HW Address: <MAC 'eth0' [IF]>
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
##### 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/odiyatoka]] (600 root)
[connection] id=odiyatoka | type=802-11-wireless
[802-11-wireless] ssid=odiyatoka | mac-address=<MAC 'wlan0' [IF]>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/XT1068 3606]] (600 root)
[connection] id=XT1068 3606 | type=802-11-wireless
[802-11-wireless] ssid=XT1068 3606 | mac-address=<MAC 'wlan0' [IF]>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/Katrina kaif]] (600 root)
[connection] id=Katrina kaif | type=802-11-wireless
[802-11-wireless] ssid=Katrina kaif | mac-address=<MAC 'wlan0' [IF]> | mtu=1000
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/AIRTEL_E5172_170C]] (600 root)
[connection] id=AIRTEL_E5172_170C | type=802-11-wireless
[802-11-wireless] ssid=AIRTEL_E5172_170C | mac-address=<MAC 'wlan0' [IF]>
[ipv4] method=auto
[ipv6] method=auto
##### iw reg get ########################
Region: Asia/Kolkata (based on set time zone)
country 00:
(2402 - 2472 @ 40), (3, 20)
(2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
(5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
##### iwlist channels ###################
eth0 no frequency information.
lo no frequency information.
wlan0 13 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
Current Frequency:2.457 GHz (Channel 10)
##### iwlist scan #######################
eth0 Interface doesn't support scanning.
wlan0 Interface doesn't support scanning : Device or resource busy
lo Interface doesn't support scanning.
##### module infos ######################
[rtl8723be]
filename: /lib/modules/3.16.0-33-generic/kernel/drivers/net/wireless/rtlwifi/rtl8723be/rtl8723be.ko
firmware: rtlwifi/rtl8723befw.bin
description: Realtek 8723BE 802.11n PCI wireless
license: GPL
author: Realtek WlanFAE <[email protected]>
author: PageHe <[email protected]>
srcversion: C94095C986767A931B924EF
depends: rtlwifi,rtl8723-common,rtl_pci,btcoexist,mac80211
intree: Y
vermagic: 3.16.0-33-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 25:26:EE:FE:32:C9:58:B4:CD:85:CA:5F:BF:EB:ED:A1:75:D1:B2:18
sig_hashalgo: sha512
parm: swlps:bool
parm: swenc:using hardware crypto (default 0 [hardware])
(bool)
parm: ips:using no link power save (default 1 is open)
(bool)
parm: fwlps:using linked fw control power save (default 1 is open)
(bool)
parm: msi:Set to 1 to use MSI interrupts mode (default 0)
(bool)
parm: debug:Set debug level (0-5) (default 0) (int)
[rtl8723_common]
filename: /lib/modules/3.16.0-33-generic/kernel/drivers/net/wireless/rtlwifi/rtl8723com/rtl8723-common.ko
description: Realtek RTL8723AE/RTL8723BE 802.11n PCI wireless common routines
license: GPL
author: Larry Finger <[email protected]>
author: Realtek WlanFAE <[email protected]>
srcversion: 7410431A59C24B1BC33226E
depends:
intree: Y
vermagic: 3.16.0-33-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 25:26:EE:FE:32:C9:58:B4:CD:85:CA:5F:BF:EB:ED:A1:75:D1:B2:18
sig_hashalgo: sha512
[rtl_pci]
filename: /lib/modules/3.16.0-33-generic/kernel/drivers/net/wireless/rtlwifi/rtl_pci.ko
description: PCI basic driver for rtlwifi
license: GPL
author: Larry Finger <[email protected]>
author: Realtek WlanFAE <[email protected]>
author: lizhaoming <[email protected]>
srcversion: 3273ECD6028617EFD27E4F4
depends: mac80211,rtlwifi
intree: Y
vermagic: 3.16.0-33-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 25:26:EE:FE:32:C9:58:B4:CD:85:CA:5F:BF:EB:ED:A1:75:D1:B2:18
sig_hashalgo: sha512
[rtlwifi]
filename: /lib/modules/3.16.0-33-generic/kernel/drivers/net/wireless/rtlwifi/rtlwifi.ko
description: Realtek 802.11n PCI wireless core
license: GPL
author: Larry Finger <[email protected]>
author: Realtek WlanFAE <[email protected]>
author: lizhaoming <[email protected]>
srcversion: 8362106E96F806A9DBAE565
depends: mac80211,cfg80211
intree: Y
vermagic: 3.16.0-33-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 25:26:EE:FE:32:C9:58:B4:CD:85:CA:5F:BF:EB:ED:A1:75:D1:B2:18
sig_hashalgo: sha512
[mac80211]
filename: /lib/modules/3.16.0-33-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: 5410C94462FA26A0A3F256C
depends: cfg80211
intree: Y
vermagic: 3.16.0-33-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 25:26:EE:FE:32:C9:58:B4:CD:85:CA:5F:BF:EB:ED:A1:75:D1:B2:18
sig_hashalgo: sha512
parm: max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm: max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm: beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm: probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm: ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)
[cfg80211]
filename: /lib/modules/3.16.0-33-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: 4A525D9D32B0C6D120CA547
depends:
intree: Y
vermagic: 3.16.0-33-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 25:26:EE:FE:32:C9:58:B4:CD:85:CA:5F:BF:EB:ED:A1:75:D1:B2:18
sig_hashalgo: sha512
parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)
##### module parameters #################
[rtl8723be]
debug: 0
fwlps: Y
ips: Y
msi: N
swenc: N
swlps: N
[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
probe_wait_ms: 500
[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /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/custom-wireless.conf]
options ath5k nohwcrypt
[/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
[/etc/modprobe.d/modesetting.conf]
options cirrus modeset=1
options mgag200 modeset=1
##### rc.local ##########################
exit 0
##### pm-utils ##########################
##### udev rules ########################
[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x10ec:0x8136 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x10ec:0xb723 (rtl8723be)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'wlan0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
##### dmesg #############################
[ 11.682997] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[ 11.683225] rtlwifi: wireless switch is on
[ 16.023693] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 17.024236] wlan0: authenticate with <MAC 'Katrina kaif' [AN7]>
[ 17.034441] wlan0: send auth to <MAC 'Katrina kaif' [AN7]> (try 1/3)
[ 17.037434] wlan0: authenticated
[ 17.042932] wlan0: associate with <MAC 'Katrina kaif' [AN7]> (try 1/3)
[ 17.046764] wlan0: RX AssocResp from <MAC 'Katrina kaif' [AN7]> (capab=0x431 status=0 aid=6)
[ 17.046977] wlan0: associated
[ 17.046984] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
########## wireless info END ############
答案1
这个答案已经过时了，请参阅 Pilot6 的答案这里
第一次尝试
$ echo "options rtl8723be fwlps=0 swlps=0" | sudo tee /etc/modprobe.d/rtl8723be.conf
重新启动，如果仍然有问题，请按照以下说明安装反向移植
$ sudo apt-get install build-essential linux-headers-generic
$ wget -N -t 5 -T 10 https://www.kernel.org/pub/linux/kernel/projects/backports/stable/v3.19-rc1/backports-3.19-rc1-1.tar.gz
$ tar -xf backports-3.19-rc1-1.tar.xz
$ cd ~/backports-3.19-rc1-1
$ make defconfig-rtlwifi
$ make
$ sudo make install
重新启动系统。
笔记
反向移植的唯一问题是，它们需要为任何通过更新安装的新内核进行构建，当这种情况发生时，
$ cd ~/backports-3.19-rc1-1
$ make clean
$ make defconfig-rtlwifi
$ make
$ sudo make install
您可能还想检查 wifi 路由器加密设置，看看它们是否加密加密或者WPA2仅按其偏好进行。
编辑（支持其他无线内核驱动程序）
rtlwifi在上面，我们为HP 笔记本电脑的无线/网卡驱动程序添加了反向移植支持。其他笔记本电脑制造商提供其他提供商的无线卡，因此首先您必须找到无线卡支持的内核驱动程序的名称，您只需lspci在 shell 中运行命令，转到Network Controller并查看它的最后一行即可获得该名称。
$ lspci -v
03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6230 [Rainbow Peak] (rev 34)
Subsystem: Intel Corporation Centrino Advanced-N 6230 AGN
Flags: bus master, fast devsel, latency 0, IRQ 36
Memory at f1b00000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
在我的笔记本电脑中，我已iwlwifi命名网卡的内核驱动程序。因此，命令如下：-
$ cd ~/backports-3.19-rc1-1
$ make clean
$ make defconfig-iwlwifi
$ make
$ sudo make install