Hello,
Since I upgraded ubuntu to 12.04 and now 12.10 I'm having wireless problems from low speeds to random disconnects. I simply can't use wireless at all since it is really "twitchy". My laptop is a SAMSUNG R580 with a realtek 8192se 802.11 b/g/n wireless PCI card.
lspci -nn | grep 'Wireless'
Code:
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8192E/RTL8192SE Wireless LAN Controller (rev 01)
iwconfig wlan0
Code:
wan0 No such device
ricardo@ricardo-R580:~$ iwconfig wlan0
wlan0 802.11bgn ESSID:"Vodafone-B8F05D" Nickname:"rtl8192E"
Mode:Managed Frequency=2.462 GHz Access Point: 58:98:35:B8:F0:5D
Bit Rate=1 Mb/s
Retry:on RTS thr:off Fragment thr:off
Power Management period:0us mode:All packets received
Link Quality=90/100 Signal level=-53 dBm Noise level=-115 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
lsmod
Code:
Module Size Used by
samsung_laptop 14003 0
rtllib_crypt_ccmp 12725 4294967293
dm_crypt 22402 0
snd_hda_codec_hdmi 31423 4
nvidia 10249589 53
rfcomm 37276 12
binfmt_misc 17260 1
bnep 17707 2
parport_pc 31968 0
ppdev 12817 0
joydev 17161 0
snd_hda_codec_realtek 63356 1
snd_hda_intel 32515 5
snd_hda_codec 111547 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 13272 1 snd_hda_codec
snd_pcm 80163 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_seq_midi 13132 0
snd_rawmidi 25382 1 snd_seq_midi
snd_seq_midi_event 14475 1 snd_seq_midi
snd_seq 51255 2 snd_seq_midi,snd_seq_midi_event
coretemp 13168 0
snd_timer 24411 2 snd_pcm,snd_seq
snd_seq_device 14137 3 snd_seq_midi,snd_rawmidi,snd_seq
kvm_intel 126745 0
r8192e_pci 203468 0
uvcvideo 71277 0
snd 61991 20 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
videobuf2_core 32070 1 uvcvideo
rtllib 136053 1 r8192e_pci
soundcore 14599 1 snd
kvm 357806 1 kvm_intel
videodev 95841 2 uvcvideo,videobuf2_core
psmouse 84843 0
btusb 17950 0
bluetooth 183228 22 rfcomm,bnep,btusb
lib80211 14040 2 rtllib_crypt_ccmp,rtllib
serio_raw 13031 0
lp 13299 0
lpc_ich 16925 0
snd_page_alloc 14036 2 snd_hda_intel,snd_pcm
mac_hid 13037 0
parport 40753 3 parport_pc,ppdev,lp
microcode 18209 0
videobuf2_vmalloc 12756 1 uvcvideo
intel_ips 17721 0
videobuf2_memops 13184 1 videobuf2_vmalloc
hid_generic 12445 0
usbhid 41702 0
hid 82142 2 hid_generic,usbhid
sky2 52926 0
video 18847 0
dmesg | grep 'wlan'
Code:
[ 30.699615] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 30.701743] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 33.888662] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
sudo lshw -C network
Code:
*-network
description: Wireless interface
product: RTL8192E/RTL8192SE Wireless LAN Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 01
serial: 00:e0:4c:00:00:01
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl819xE driverversion=0014.0401.2010 ip=192.168.1.69 latency=0 link=yes multicast=yes wireless=802.11bgn
resources: irq:16 ioport:3000(size=256) memory:f0700000-f0703fff
*-network
description: Ethernet interface
product: Yukon Optima 88E8059 [PCIe Gigabit Ethernet Controller with AVB]
vendor: Marvell Technology Group Ltd.
physical id: 0
bus info: pci@0000:07:00.0
logical name: eth0
version: 11
serial: 00:24:54:5a:21:a2
size: 100Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.30 duplex=full ip=192.168.1.65 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
resources: irq:42 memory:f0800000-f0803fff ioport:5000(size=256) memory:f0400000-f041ffff
uname -mr
Code:
3.5.0-18-generic i686
Any help would be appreciated since this wireless issue is driving me nuts. I already tried both network manager and wicd and the same issues happen every time. I really enjoy ubuntu but I'm forced to use another OS because I'm unable to have a persistent wireless connection.
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