Dell Inspiron 17R SE 7720 / Intel 2230

[Timur Ridjanovic]

I just bought my self a new laptop: Dell Inspiron 17R SE 7720 and installed Ubuntu 12.04.1 LTS 64 bits. However, my wireless connection isnt working... Actually, sometimes it will connect for like a minute and disconnect after that, but that is a rare occurrence. My wireless card is an intel2230. Since I'm new to Ubuntu, I'm not sure how to download dell drivers on Ubuntu. It seems that a lot of people with the Dell 17r have had that problem with wireless, according to my searches, but I haven't found a solution. Can somebody help me please?

Thanks!

[praseodym]

Hi,

please open a terminal with CTRL+ALT+T and show the outputs of these commands:

lspci -nnk | grep -iA2 net
lsusb
lsmod
iwconfig
rfkill list

[tannurishu]

root@ubuntu:~# lspci -nnk | grep -iA2 net
01:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
Subsystem: Dell Wireless 1704 802.11n + BT 4.0 [1028:0016]
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
Subsystem: Dell Device [1028:0564]
Kernel driver in use: r8169
root@ubuntu:~# lsusb
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0bda:0129 Realtek Semiconductor Corp.
Bus 001 Device 004: ID 0c45:644b Microdia
Bus 002 Device 003: ID 0a5c:21d7 Broadcom Corp.
root@ubuntu:~# lsmod
Module Size Used by
pppoe 17511 2
pppox 13158 1 pppoe
ipt_MASQUERADE 12663 1
iptable_filter 12706 1
iptable_nat 12977 1
nf_nat 20316 2 ipt_MASQUERADE,iptable_nat
nf_conntrack_ipv4 14080 3 iptable_nat,nf_nat
nf_conntrack 66307 4 ipt_MASQUERADE,iptable_nat,nf_nat,nf_conntrack_ipv 4
nf_defrag_ipv4 12649 1 nf_conntrack_ipv4
ip_tables 17791 2 iptable_filter,iptable_nat
x_tables 21898 4 ipt_MASQUERADE,iptable_filter,iptable_nat,ip_table s
bridge 79264 0
stp 12811 1 bridge
llc 14160 2 bridge,stp
snd_hda_codec_hdmi 31423 1
snd_hda_codec_idt 59761 1
dell_wmi 12601 0
sparse_keymap 13658 1 dell_wmi
snd_hda_intel 32515 3
snd_hda_codec 111547 3 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel
snd_hwdep 13272 1 snd_hda_codec
dell_laptop 17161 0
dcdbas 14054 1 dell_laptop
snd_pcm 80163 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
coretemp 13168 0
kvm_intel 126745 0
kvm 357806 1 kvm_intel
microcode 18209 0
snd_seq_midi 13132 0
snd_rawmidi 25382 1 snd_seq_midi
snd_seq_midi_event 14475 1 snd_seq_midi
rts5139 281367 0
btusb 17950 0
snd_seq 51255 2 snd_seq_midi,snd_seq_midi_event
uvcvideo 71277 0
psmouse 84843 0
videobuf2_core 32070 1 uvcvideo
serio_raw 13031 0
videodev 95841 2 uvcvideo,videobuf2_core
videobuf2_vmalloc 12756 1 uvcvideo
videobuf2_memops 13184 1 videobuf2_vmalloc
snd_timer 24411 2 snd_pcm,snd_seq
snd_seq_device 14137 3 snd_seq_midi,snd_rawmidi,snd_seq
snd 61991 16 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel ,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_s eq,snd_timer,snd_seq_device
lpc_ich 16925 0
i915 457161 3
mei 35796 0
soundcore 14599 1 snd
snd_page_alloc 14036 2 snd_hda_intel,snd_pcm
drm_kms_helper 45271 1 i915
drm 230463 4 i915,drm_kms_helper
i2c_algo_bit 13197 1 i915
video 18847 1 i915
wmi 18590 1 dell_wmi
parport_pc 31968 0
ppdev 12817 0
rfcomm 37276 16
bnep 17707 2
bluetooth 183228 22 btusb,rfcomm,bnep
binfmt_misc 17260 1
mac_hid 13037 0
lp 13299 0
parport 40753 3 parport_pc,ppdev,lp
r8169 55976 0
root@ubuntu:~# iwconfig
ppp0 no wireless extensions.

pan1 no wireless extensions.

lo no wireless extensions.

eth0 no wireless extensions.

root@ubuntu:~# rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no

[Timur Ridjanovic]

timur@timur:~$ lspci -nnk | grep -iA2 net
02:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 2230 [8086:0887] (rev c4)
Subsystem: Intel Corporation Centrino Wireless-N 2230 BGN [8086:4462]
Kernel driver in use: iwlwifi
--
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
Subsystem: Dell Device [1028:0578]
Kernel driver in use: r8169




timur@timur:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 0bda:0129 Realtek Semiconductor Corp.
Bus 001 Device 004: ID 0bda:58bf Realtek Semiconductor Corp.
Bus 002 Device 003: ID 8087:07da Intel Corp.



timur@timur:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 0bda:0129 Realtek Semiconductor Corp.
Bus 001 Device 004: ID 0bda:58bf Realtek Semiconductor Corp.
Bus 002 Device 003: ID 8087:07da Intel Corp.





timur@timur:~$ lsmod
Module Size Used by
btusb 18332 2
nls_utf8 12557 0
udf 94613 0
crc_itu_t 12707 1 udf
bnep 18281 2
rfcomm 47604 12
bluetooth 180153 23 btusb,bnep,rfcomm
parport_pc 32866 0
nvidia 9367655 0
ppdev 17113 0
snd_hda_codec_hdmi 32474 1
snd_hda_codec_idt 70795 1
arc4 12529 2
uvcvideo 72627 0
snd_hda_intel 33719 3
snd_hda_codec 127706 3 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel
snd_hwdep 17764 1 snd_hda_codec
snd_pcm 97275 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
rts5139 351188 0
videodev 98259 1 uvcvideo
snd_seq_midi 13324 0
i915 477626 2
v4l2_compat_ioctl32 17128 1 videodev
snd_rawmidi 30748 1 snd_seq_midi
snd_seq_midi_event 14899 1 snd_seq_midi
drm_kms_helper 46978 1 i915
drm 241971 3 i915,drm_kms_helper
snd_seq 61929 2 snd_seq_midi,snd_seq_midi_event
dell_laptop 18119 0
psmouse 97485 0
iwlwifi 401140 0
snd_timer 29990 2 snd_pcm,snd_seq
snd_seq_device 14540 3 snd_seq_midi,snd_rawmidi,snd_seq
dcdbas 14490 1 dell_laptop
i2c_algo_bit 13423 1 i915
snd 79041 16 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel ,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_s eq,snd_timer,snd_seq_device
dell_wmi 12681 0
serio_raw 13211 0
sparse_keymap 13890 1 dell_wmi
video 19651 1 i915
mei 41616 0
soundcore 15091 1 snd
mac80211 506862 1 iwlwifi
snd_page_alloc 18529 2 snd_hda_intel,snd_pcm
cfg80211 205774 2 iwlwifi,mac80211
wmi 19256 1 dell_wmi
mac_hid 13253 0
lp 17799 0
parport 46562 3 parport_pc,ppdev,lp
r8169 62154 0





timur@timur:~$ iwconfig
lo no wireless extensions.


wlan0 IEEE 802.11bgn ESSID:"ThomsonB0AFE0"
Mode:Managed Frequency:2.462 GHz Access Point: 58:98:35:B0:AF:E0
Bit Rate=1 Mb/s Tx-Power=16 dBm
Retry long limit:7 RTS thrff Fragment thrff
Power Managementff
Link Quality=39/70 Signal level=-71 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:12 Invalid misc:21 Missed beacon:0


eth0 no wireless extensions.




timur@timur:~$ rfkill list
0: dell-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
1: dell-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
4: hci0: Bluetooth
Soft blocked: no
Hard blocked: no

[praseodym]

@ tannurishu:

You need to install a patched driver version for this card:

sudo mkdir /usr/src/hybrid-portsrc_x86_64-5.100.82.112
wget http://media.cdn.ubuntu-de.org/forum/attachments/10/06/2865859-hybrid-portsrc_x86_64-v5_100_82_112_patched_dkms.tar.gz
sudo tar xvf 2865859-hybrid-portsrc_x86_64-v5_100_82_112_patched_dkms.tar.gz -C /usr/src/hybrid-portsrc_x86_64-5.100.82.112 
sudo apt-get install --reinstall linux-headers-$(uname -r) linux-headers-generic build-essential dkms
sudo dkms add -m hybrid-portsrc_x86_64 -v 5.100.82.112
sudo dkms build -m hybrid-portsrc_x86_64 -v 5.100.82.112
sudo dkms install -m hybrid-portsrc_x86_64 -v 5.100.82.112

From here: http://forum.ubuntuusers.de/topic/w-...00-82-112-DKMS
Do not activate the Broadcom-STA driver in "additional drivers"!!!

@Timur Ridjanovic

Deactivate the N-mode of your driver (bug)

echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf
sudo modprobe -rfv iwlwifi
sudo modprobe -v iwlwifi