Você tem um kernel errado para o Ubuntu 15.04 por algum motivo.
Você precisa instalar o kernel correto executando
sudo apt-get install linux-generic
e reinicie.
Por favor, encontre o log do sistema wifi funcionou bem em 14.04 LTS, mas não mais depois de atualizar muitos tx
########## wireless info START ##########
Report from: 18 Oct 2015 18:31 CEST +0200
Booted last: 18 Oct 2015 17:59 CEST +0200
Script from: 27 Sep 2015 00:34 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 15.04
Release: 15.04
Codename: vivid
##### kernel ############################
Linux 3.2.0-56-generic-pae #86-Ubuntu SMP Wed Oct 23 17:51:27 UTC 2013 i686 i686 i686 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Xubuntu
##### lspci #############################
00:19.0 Ethernet controller [0200]: Intel Corporation 82577LM Gigabit Network Connection [8086:10ea] (rev 05)
Subsystem: Hewlett-Packard Company Device [103c:7008]
Kernel driver in use: e1000e
43:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6200 [8086:4239] (rev 35)
Subsystem: Intel Corporation Centrino Advanced-N 6200 2x2 AGN [8086:1311]
Kernel modules: iwlwifi
##### lsusb #############################
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 005: ID 04f2:b163 Chicony Electronics Co., Ltd
Bus 001 Device 004: ID 138a:0007 Validity Sensors, Inc. VFS451 Fingerprint Reader
Bus 001 Device 003: ID 03f0:231d Hewlett-Packard 4 GB Flash Drive
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
PRODID_1="RICOH
"
PRODID_2="Bay8Controller
"
PRODID_3=""
PRODID_4=""
MANFID=0000,0000
FUNCID=254
##### rfkill ############################
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: hp-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
2: hp-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
##### lsmod #############################
hp_wmi 13652 0
sparse_keymap 13658 1 hp_wmi
iwlwifi 366509 0
mac80211 436493 1 iwlwifi
cfg80211 178877 2 mac80211,iwlwifi
wmi 18744 1 hp_wmi
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
eth0 Link encap:Ethernet HWaddr <MAC 'eth0' [IF]>
inet addr:192.168.1.16 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: 2a02:a03f:4c1:4a00:<IP6 'eth0' [IF]>/128 Scope:Global
inet6 addr: fe80::<IP6 'eth0' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3667 errors:0 dropped:0 overruns:0 frame:0
TX packets:2978 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2630515 (2.6 MB) TX bytes:593407 (593.4 KB)
Interrupt:20 Memory:d4700000-d4720000
##### iwconfig ##########################
lo no wireless extensions.
eth0 no wireless extensions.
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 100 0 0 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 100 0 0 eth0
##### resolv.conf #######################
nameserver 127.0.1.1
search home
##### network managers ##################
Installed:
NetworkManager
Running:
root 851 1 0 17:59 ? 00:00:00 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: eth0
GENERAL.TYPE: ethernet
GENERAL.VENDOR: Intel Corporation
GENERAL.PRODUCT: 82577LM Gigabit Network Connection
GENERAL.DRIVER: e1000e
GENERAL.DRIVER-VERSION: 1.5.1-k
GENERAL.FIRMWARE-VERSION: 0.12-3
GENERAL.HWADDR: <MAC 'eth0' [IF]>
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:19.0/net/eth0
GENERAL.IP-IFACE: eth0
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.CONNECTION: Auto Ethernet
GENERAL.CON-UUID: 1ccdca9b-790e-4d77-9260-9f5928d7cd28
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/1
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: 1000 Mb/s
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{4}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 1ccdca9b-790e-4d77-9260-9f5928d7cd28 | Auto Ethernet
WIRED-PROPERTIES.CARRIER: on
IP4.ADDRESS[1]: ip = 192.168.1.16/24, gw = 192.168.1.1
IP4.DNS[1]: 192.168.1.1
IP4.DOMAIN[1]: home
DHCP4.OPTION[1]: requested_host_name = 1
DHCP4.OPTION[2]: requested_domain_search = 1
DHCP4.OPTION[3]: domain_name_servers = 192.168.1.1
DHCP4.OPTION[4]: requested_broadcast_address = 1
DHCP4.OPTION[5]: requested_time_offset = 1
DHCP4.OPTION[6]: requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[7]: requested_domain_name_servers = 1
DHCP4.OPTION[8]: requested_domain_name = 1
DHCP4.OPTION[9]: requested_netbios_scope = 1
DHCP4.OPTION[10]: expiry = 1445189417
DHCP4.OPTION[11]: next_server = 0.0.0.0
DHCP4.OPTION[12]: domain_name = home
DHCP4.OPTION[13]: broadcast_address = 192.168.1.255
DHCP4.OPTION[14]: dhcp_message_type = 5
DHCP4.OPTION[15]: requested_subnet_mask = 1
DHCP4.OPTION[16]: routers = 192.168.1.1
DHCP4.OPTION[17]: ip_address = 192.168.1.16
DHCP4.OPTION[18]: dhcp_lease_time = 3600
DHCP4.OPTION[19]: subnet_mask = 255.255.255.0
DHCP4.OPTION[20]: requested_static_routes = 1
DHCP4.OPTION[21]: requested_ntp_servers = 1
DHCP4.OPTION[22]: requested_wpad = 1
DHCP4.OPTION[23]: requested_netbios_name_servers = 1
DHCP4.OPTION[24]: requested_routers = 1
DHCP4.OPTION[25]: requested_ms_classless_static_routes = 1
DHCP4.OPTION[26]: requested_interface_mtu = 1
DHCP4.OPTION[27]: network_number = 192.168.1.0
DHCP4.OPTION[28]: dhcp_server_identifier = 192.168.1.1
DHCP4.OPTION[29]: ntp_servers = 195.13.1.153
IP6.ADDRESS[1]: ip = 2a02:a03f:4c1:4a00:<IP6 'eth0' [IF]>/128, gw = fe80::6a15:90ff:fe11:de39
IP6.ADDRESS[2]: ip = fe80::<IP6 'eth0' [IF]>/64, gw = fe80::6a15:90ff:fe11:de39
IP6.ROUTE[1]: dst = 2a02:a03f:4c1:4a00::/64, nh = ::, mt = 100
##### 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 ###########
Sorry, try again.
[[/etc/NetworkManager/system-connections/Wi-Fi connection 1]] (600 root)
[connection] id=Draadloos | type=wifi
[wifi] ssid=Draadloos
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/PROXIMUS_FON]] (600 root)
[connection] id=PROXIMUS_FON | type=802-11-wireless | autoconnect=false
[802-11-wireless] ssid=PROXIMUS_FON | mac-address=<MAC address>
[ipv6] method=auto
[ipv4] method=auto
##### iw reg get ########################
Region: Europe/Brussels (based on set time zone)
country 00: DFS-UNSET
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(2457 - 2482 @ 40), (N/A, 20), (N/A), NO-IR
(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, NO-IR
(5170 - 5250 @ 80), (N/A, 20), (N/A), NO-IR
(5250 - 5330 @ 80), (N/A, 20), (N/A), DFS, NO-IR
(5490 - 5730 @ 160), (N/A, 20), (N/A), DFS, NO-IR
(5735 - 5835 @ 80), (N/A, 20), (N/A), NO-IR
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
##### 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 ######################
[iwlwifi]
filename: /lib/modules/3.2.0-56-generic-pae/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko
license: GPL
author: Copyright(c) 2003-2011 Intel Corporation <[email protected]>
version: in-tree:
description: Intel(R) Wireless WiFi Link AGN driver for Linux
firmware: iwlwifi-5150-2.ucode
firmware: iwlwifi-5000-5.ucode
firmware: iwlwifi-6000g2b-6.ucode
firmware: iwlwifi-6000g2a-5.ucode
firmware: iwlwifi-6050-5.ucode
firmware: iwlwifi-6000-4.ucode
firmware: iwlwifi-100-5.ucode
firmware: iwlwifi-1000-5.ucode
firmware: iwlwifi-135-6.ucode
firmware: iwlwifi-105-6.ucode
firmware: iwlwifi-2030-6.ucode
firmware: iwlwifi-2000-6.ucode
srcversion: 290AB40BBD26BABA465648D
depends: mac80211,cfg80211
intree: Y
vermagic: 3.2.0-56-generic-pae SMP mod_unload modversions 686
parm: swcrypto:using crypto in software (default 0 [hardware]) (int)
parm: queues_num:number of hw queues. (int)
parm: 11n_disable:disable 11n functionality (int)
parm: amsdu_size_8K:enable 8K amsdu size (int)
parm: fw_restart:restart firmware in case of error (int)
parm: ucode_alternative:specify ucode alternative to use from ucode file (int)
parm: antenna_coupling:specify antenna coupling in dB (defualt: 0 dB) (int)
parm: bt_ch_inhibition:Enable BT channel inhibition (default: enable) (bool)
parm: plcp_check:Check plcp health (default: 1 [enabled]) (bool)
parm: ack_check:Check ack health (default: 0 [disabled]) (bool)
parm: wd_disable:Disable stuck queue watchdog timer 0=system default, 1=disable, 2=enable (default: 0) (int)
parm: bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
parm: led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking (default: 0) (int)
parm: power_save:enable WiFi power management (default: disable) (bool)
parm: power_level:default power save level (range from 1 - 5, default: 1) (int)
parm: auto_agg:enable agg w/o check traffic load (default: enable) (bool)
parm: no_sleep_autoadjust:don't automatically adjust sleep level according to maximum network latency (default: true) (bool)
[mac80211]
filename: /lib/modules/3.2.0-56-generic-pae/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: A2FF94B65BEDD5243E20746
depends: cfg80211
intree: Y
vermagic: 3.2.0-56-generic-pae SMP mod_unload modversions 686
parm: ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)
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: probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
[cfg80211]
filename: /lib/modules/3.2.0-56-generic-pae/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: 8FC6FDEFE98BAF48701CC2A
depends:
intree: Y
vermagic: 3.2.0-56-generic-pae SMP mod_unload modversions 686
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 #################
[iwlwifi]
11n_disable: 0
ack_check: N
amsdu_size_8K: 1
antenna_coupling: 0
auto_agg: Y
bt_ch_inhibition: Y
bt_coex_active: Y
fw_restart: 1
led_mode: 0
no_sleep_autoadjust: Y
plcp_check: Y
power_level: 0
power_save: N
queues_num: 0
swcrypto: 0
ucode_alternative: 1
wd_disable: 0
[mac80211]
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
##### 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/intel-microcode-blacklist.conf]
blacklist microcode
[/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:/sys/devices/pci0000:00/0000:00:19.0 (e1000e)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x8086:/sys/devices/pci0000:00/0000:00:1c.3/0000:43:00.0 (iwlwifi)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
##### dmesg #############################
[ 14.418898] systemd[1]: Found dependency on network-online.target/start
[ 14.430893] systemd[1]: Found dependency on NetworkManager-wait-online.service/start
[ 77.172720] ADDRCONF(NETDEV_UP): eth0: link is not ready (repeated 4 times)
[ 1738.252910] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx
[ 1738.253224] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 1771.245236] [UFW BLOCK] IN=eth0 OUT= MAC=01:00:5e:00:00:01:68:15:90:11:de:39:08:00 SRC=192.168.1.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=0 DF PROTO=2
[ 1771.245618] [UFW BLOCK] IN=eth0 OUT= MAC=33:33:00:00:00:01:68:15:90:11:de:39:86:dd SRC=fe80:0000:0000:0000:6a15:90ff:fe11:de39 DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=76 TC=0 HOPLIMIT=1 FLOWLBL=0 PROTO=ICMPv6 TYPE=130 CODE=0
[ 1808.096817] [UFW BLOCK] IN=eth0 OUT= MAC=01:00:5e:00:00:fb:68:15:90:11:de:39:08:00 SRC=192.168.1.1 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=0 DF PROTO=2
[ 1827.171210] e1000e: eth0 NIC Link is Down
[ 1855.181723] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx
[ 1855.182048] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 1896.202442] [UFW BLOCK] IN=eth0 OUT= MAC=01:00:5e:00:00:01:68:15:90:11:de:39:08:00 SRC=192.168.1.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=0 DF PROTO=2
[ 1896.202839] [UFW BLOCK] IN=eth0 OUT= MAC=33:33:00:00:00:01:68:15:90:11:de:39:86:dd SRC=fe80:0000:0000:0000:6a15:90ff:fe11:de39 DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=76 TC=0 HOPLIMIT=1 FLOWLBL=0 PROTO=ICMPv6 TYPE=130 CODE=0
[ 1928.047028] [UFW BLOCK] IN=eth0 OUT= MAC=01:00:5e:00:00:fb:68:15:90:11:de:39:08:00 SRC=192.168.1.1 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=0 DF PROTO=2
########## wireless info END ############
Você tem um kernel errado para o Ubuntu 15.04 por algum motivo.
Você precisa instalar o kernel correto executando
sudo apt-get install linux-generic
e reinicie.
Muitos tx pelo seu apoio. Eu concluí que minha instalação deu errado e além de salvar e reinstalar o 14.04 LTS. Tudo funciona bem agora.
A solução final para esse problema:
Abra uma sessão de terminal e digite sudo ubuntu-drivers autoinstall .