I have a brand new notebook where I have installed Windows 7 and Ubuntu 12.04 LTS 64bit in dual boot. In windows 7 wifi works but in Ubuntu not.
Could you help me please ?
iwconfig
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
eth0 no wireless extensions.
lshw -C network
*-network
description: Ethernet interface
product: RTL8111/8168B PCI Express Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
logical name: eth0
version: 07
serial: b4:b5:1f:1b:9a:56
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:41 ioport:3000(size=256) memory:c2404000-c2404fff memory:c2400000-c2403fff
*-network
description: Wireless interface
product: Ralink corp.
vendor: Ralink corp.
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlan0
version: 00
serial: 84:4b:f4:0a:3a:22
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rt2800pci driverversion=3.2.0-31-generic firmware=0.34 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
resources: irq:18 memory:c2500000-c250ffff
lspci | grep -i net
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 07)
02:00.0 Network controller: Ralink corp. Device 539a
iwlist scan
lo Interface doesn't support scanning.
wlan0 Interface doesn't support scanning : Device or resource busy
eth0 Interface doesn't support scanning.
lsmod
Module Size Used by
rfcomm 47604 0
bnep 18281 2
bluetooth 180104 10 rfcomm,bnep
parport_pc 32866 0
ppdev 17113 0
snd_hda_codec_hdmi 32474 1
snd_hda_codec_realtek 224173 1
joydev 17693 0
hp_wmi 18092 0
sparse_keymap 13890 1 hp_wmi
snd_hda_intel 33773 3
snd_hda_codec 127706 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 13668 1 snd_hda_codec
snd_pcm 97188 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_seq_midi 13324 0
snd_rawmidi 30748 1 snd_seq_midi
snd_seq_midi_event 14899 1 snd_seq_midi
snd_seq 61896 2 snd_seq_midi,snd_seq_midi_event
snd_timer 29990 2 snd_pcm,snd_seq
snd_seq_device 14540 3 snd_seq_midi,snd_rawmidi,snd_seq
psmouse 97362 0
snd 78855 16 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
arc4 12529 2
rt2800pci 18715 0
rt2800lib 58925 1 rt2800pci
crc_ccitt 12667 1 rt2800lib
rt2x00pci 14577 1 rt2800pci
rt2x00lib 51144 3 rt2800pci,rt2800lib,rt2x00pci
mac80211 506816 3 rt2800lib,rt2x00pci,rt2x00lib
soundcore 15091 1 snd
mac_hid 13253 0
uvcvideo 72627 0
videodev 98259 1 uvcvideo
v4l2_compat_ioctl32 17128 1 videodev
wmi 19256 1 hp_wmi
i915 473240 3
cfg80211 205544 2 rt2x00lib,mac80211
eeprom_93cx6 12725 1 rt2800pci
drm_kms_helper 46978 1 i915
drm 242038 4 i915,drm_kms_helper
i2c_algo_bit 13423 1 i915
snd_page_alloc 18529 2 snd_hda_intel,snd_pcm
mei 41616 0
serio_raw 13211 0
video 19596 1 i915
lp 17799 0
parport 46562 3 parport_pc,ppdev,lp
usbhid 47199 0
hid 99559 1 usbhid
r8169 62099 0
rfkill list:
# rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hp-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no