Hallo,
Problem: Mein Wlan-Signal ist schwach (1 Meter neben Router zwischen 70% und 80%, im Nebenraum bricht Signal oft ab, obwohl mit meinen anderen notebooks mit win7 das signal immer super war).
Stand: Da das Wlan am Anfang überhaupt nicht funktionierte, musste ich an den Treibern einiges verändern - ohne dass ich sagen könnte, was ich da getan habe .. Trotzdem funktiert es jetzt wie beschrieben.
Ausgaben:
bastian@Lenovo-B590:~$ uname -a Linux Lenovo-B590 3.5.0-22-generic #34-Ubuntu SMP Tue Jan 8 21:47:00 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux bastian@Lenovo-B590:~$ lspci -nnk | grep -i net -A2 02:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01) Subsystem: Broadcom Corporation Device [14e4:0608] Kernel driver in use: bcma-pci-bridge -- 03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 07) Subsystem: Lenovo Device [17aa:5002] Kernel driver in use: r8169 bastian@Lenovo-B590:~$ egrep -v "^$|^#" /etc/network/interfaces auto lo iface lo inet loopback bastian@Lenovo-B590:~$ egrep -v "^$|^#" /etc/resolv.conf nameserver 127.0.1.1 bastian@Lenovo-B590:~$ egrep -v "^$|^#" /etc/hosts 127.0.0.1 localhost 127.0.1.1 Lenovo-B590 ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters bastian@Lenovo-B590:~$ cat /etc/udev/rules.d/70-persistent-net.rules # PCI device 0x10ec:/sys/devices/pci0000:00/0000:00:1c.3/0000:03:00.0 (r8169) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="3c:97:0e:56:6d:fd", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0" # PCI device 0x14e4:/sys/devices/pci0000:00/0000:00:1c.1/0000:02:00.0/bcma0:0 (bcma-pci-bridge) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="08:3e:8e:a6:1e:79", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0" # PCI device 0x14e4:/sys/devices/pci0000:00/0000:00:1c.1/0000:02:00.0 (wl) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="08:3e:8e:a6:1e:79", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1" bastian@Lenovo-B590:~$ ifconfig -a eth0 Link encap:Ethernet Hardware Adresse 3c:97:0e:56:6d:fd UP BROADCAST MULTICAST MTU:1500 Metrik:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 Kollisionen:0 Sendewarteschlangenlänge:1000 RX-Bytes:0 (0.0 B) TX-Bytes:0 (0.0 B) lo Link encap:Lokale Schleife inet Adresse:127.0.0.1 Maske:255.0.0.0 inet6-Adresse: ::1/128 Gültigkeitsbereich:Maschine UP LOOPBACK RUNNING MTU:16436 Metrik:1 RX packets:826 errors:0 dropped:0 overruns:0 frame:0 TX packets:826 errors:0 dropped:0 overruns:0 carrier:0 Kollisionen:0 Sendewarteschlangenlänge:0 RX-Bytes:75561 (75.5 KB) TX-Bytes:75561 (75.5 KB) wlan0 Link encap:Ethernet Hardware Adresse 08:3e:8e:a6:1e:79 inet Adresse:192.168.1.102 Bcast:192.168.1.255 Maske:255.255.255.0 inet6-Adresse: fe80::a3e:8eff:fea6:1e79/64 Gültigkeitsbereich:Verbindung UP BROADCAST RUNNING MULTICAST MTU:1500 Metrik:1 RX packets:7930 errors:0 dropped:0 overruns:0 frame:0 TX packets:5476 errors:0 dropped:0 overruns:0 carrier:0 Kollisionen:0 Sendewarteschlangenlänge:1000 RX-Bytes:5846793 (5.8 MB) TX-Bytes:933416 (933.4 KB) bastian@Lenovo-B590:~$ iwconfig eth0 no wireless extensions. lo no wireless extensions. wlan0 IEEE 802.11bgn ESSID:"Barit" Mode:Managed Frequency:2.437 GHz Access Point: 00:21:27:D7:F4:E6 Bit Rate=36 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=55/70 Signal level=-55 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:14 Invalid misc:105 Missed beacon:0 bastian@Lenovo-B590:~$ route -n Kernel-IP-Routentabelle Ziel Router Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 wlan0 169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlan0 192.168.1.0 0.0.0.0 255.255.255.0 U 9 0 0 wlan0 bastian@Lenovo-B590:~$ ping -c 4 www.ubuntuusers.de PING ubuntuusers.de (213.95.41.13) 56(84) bytes of data. 64 bytes from lisa.ubuntu-eu.org (213.95.41.13): icmp_req=1 ttl=52 time=29.0 ms 64 bytes from lisa.ubuntu-eu.org (213.95.41.13): icmp_req=2 ttl=51 time=30.8 ms 64 bytes from lisa.ubuntu-eu.org (213.95.41.13): icmp_req=3 ttl=51 time=31.2 ms 64 bytes from lisa.ubuntu-eu.org (213.95.41.13): icmp_req=4 ttl=52 time=31.4 ms --- ubuntuusers.de ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3004ms rtt min/avg/max/mdev = 29.024/30.637/31.463/0.980 ms bastian@Lenovo-B590:~$ ping -c 4 213.95.41.11 PING 213.95.41.11 (213.95.41.11) 56(84) bytes of data. 64 bytes from 213.95.41.11: icmp_req=1 ttl=51 time=34.1 ms 64 bytes from 213.95.41.11: icmp_req=2 ttl=52 time=27.9 ms 64 bytes from 213.95.41.11: icmp_req=3 ttl=51 time=35.5 ms 64 bytes from 213.95.41.11: icmp_req=4 ttl=52 time=28.1 ms --- 213.95.41.11 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3004ms rtt min/avg/max/mdev = 27.902/31.434/35.522/3.447 ms bastian@Lenovo-B590:~$ lsmod Module Size Used by nls_utf8 12558 1 udf 89521 1 crc_itu_t 12708 1 udf bnep 18141 2 rfcomm 46620 0 parport_pc 32689 0 ppdev 17074 0 bluetooth 209249 10 bnep,rfcomm snd_hda_codec_hdmi 32049 1 snd_hda_codec_realtek 78048 1 snd_hda_intel 33492 5 snd_hda_codec 134213 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel thinkpad_acpi 81199 0 snd_hwdep 17699 1 snd_hda_codec snd_pcm 96668 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec snd_seq_midi 13325 0 snd_rawmidi 30513 1 snd_seq_midi snd_seq_midi_event 14900 1 snd_seq_midi snd_seq 61555 2 snd_seq_midi,snd_seq_midi_event snd_timer 29426 2 snd_pcm,snd_seq snd_seq_device 14498 3 snd_seq_midi,snd_rawmidi,snd_seq arc4 12530 2 brcmsmac 531905 0 uvcvideo 76750 0 videobuf2_core 32852 1 uvcvideo videodev 120310 2 uvcvideo,videobuf2_core mac80211 539958 1 brcmsmac videobuf2_vmalloc 12861 1 uvcvideo videobuf2_memops 13405 1 videobuf2_vmalloc nls_iso8859_1 12714 1 snd 78921 20 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,thinkpad_acpi,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device soundcore 15048 1 snd snd_page_alloc 18485 2 snd_hda_intel,snd_pcm brcmutil 14756 1 brcmsmac coretemp 13401 0 i915 520621 3 cfg80211 206797 2 brcmsmac,mac80211 drm_kms_helper 49113 1 i915 drm 288721 4 i915,drm_kms_helper cordic 12575 1 brcmsmac kvm 414071 0 bcma 35657 1 brcmsmac joydev 17458 0 i2c_algo_bit 13414 1 i915 ghash_clmulni_intel 13221 0 acer_wmi 32454 0 psmouse 95595 0 sparse_keymap 13891 1 acer_wmi cryptd 20404 1 ghash_clmulni_intel mei 40691 0 lpc_ich 17062 0 microcode 22804 0 wmi 19071 1 acer_wmi serio_raw 13216 0 mac_hid 13206 0 nvram 14363 1 thinkpad_acpi video 19336 2 i915,acer_wmi ext2 72881 1 lp 17760 0 parport 46346 3 parport_pc,ppdev,lp uas 17845 0 usb_storage 48839 0 r8169 61651 0
Ich hoffe, das reicht erstmal. Wie gesagt habe ich nicht wirklich Ahnung von dieser Terminal-Geschichte (Bin eher Windows-Versiert, was ich gerne ändern möchte.)