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Thread: Ubuntu 12.10 on Lenovo G580, connected to local network but no internet

  1. #21
    Join Date
    Oct 2007
    Beans
    15

    Re: Ubuntu 12.10 on Lenovo G580, connected to local network but no internet

    Code:
    cat /etc/resolv.conf
    hash@ubuntu:~$ cat /etc/resolv.conf
    nameserver 10.182.70.107
    nameserver 10.180.15.160

    Code:
    nm-tool
    hash@ubuntu:~$ nm-tool

    NetworkManager Tool

    State: connected (global)

    - Device: eth0 -----------------------------------------------------------------
    Type: Wired
    Driver: tg3
    State: unavailable
    Default: no
    HW Address: 60:EB:69:997:0D

    Capabilities:
    Carrier Detect: yes

    Wired Properties
    Carrier: off


    - Device: wlan0 [jthomas's Network] -------------------------------------------
    Type: 802.11 WiFi
    Driver: iwlwifi
    State: connected
    Default: yes
    HW Address: 00:26:C7:89:6A:AC

    Capabilities:
    Speed: 54 Mb/s

    Wireless Properties
    WEP Encryption: yes
    WPA Encryption: yes
    WPA2 Encryption: yes

    Wireless Access Points (* = current AP)
    Livebox-D95E: Infra, 7C:038:789:5E, Freq 2412 MHz, Rate 54 Mb/s, Strength 70 WPA WPA2
    Livebox-dc78: Infra, 5C:33:8E:0D:C6:FC, Freq 2437 MHz, Rate 54 Mb/s, Strength 69 WPA WPA2
    Livebox-BFC2: Infra, C0:AC:54:44:BF:C2, Freq 2412 MHz, Rate 54 Mb/s, Strength 30 WPA WPA2
    NEUF_D4B8: Infra, 00:17:33:2F4:BC, Freq 2462 MHz, Rate 54 Mb/s, Strength 22 WPA
    SFR WiFi Mobile: Infra, A2:17:33:2F4:BF, Freq 2462 MHz, Rate 54 Mb/s, Strength 20 WPA2 Enterprise
    Buffalo_Joe: Infra, 00:0D:0B:05:BC:4D, Freq 2462 MHz, Rate 54 Mb/s, Strength 92 WEP
    SFR WiFi Public: Infra, A2:17:33:2F4:BD, Freq 2462 MHz, Rate 54 Mb/s, Strength 22
    *jthomas's Network: Infra, F8:1EF:FF:C1:4D, Freq 2437 MHz, Rate 54 Mb/s, Strength 63 WPA2

    IPv4 Settings:
    Address: 192.168.1.24
    Prefix: 24 (255.255.255.0)
    Gateway: 192.168.1.1

    DNS: 192.168.1.1


    Code:
    cat /etc/NetworkManager/NerworkManager.conf
    hash@ubuntu:~$ cat /etc/NetworkManager/NetworkManager.conf
    [main]
    plugins=ifupdown,keyfile
    dns=dnsmasq

    [ifupdown]
    managed=false

  2. #22
    Join Date
    Aug 2005
    Location
    South Carolina, USA
    Beans
    20,104
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Ubuntu 12.10 on Lenovo G580, connected to local network but no internet

    In 12.10, if you are using dnsmasq, which it says you are, /etc/resolv.conf should read:
    Code:
     nameserver 127.0.0.1
    I suggest you change it:
    Code:
    gksudo gedit /etc/resolv.conf
    Change it to:
    Code:
     nameserver 127.0.0.1
    Proofread, save and close gedit. Reboot. Then show us:
    Code:
    ping -c3 8.8.8.8
    ping -c3 www.google.com
    cat /etc/resolv.conf
    We may also have some other file to address. Let's see what happens.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  3. #23
    Join Date
    Oct 2007
    Beans
    15

    Re: Ubuntu 12.10 on Lenovo G580, connected to local network but no internet

    Hi

    Actually sometime earlier i hijacked this thread, as I had a similar problem, but I am not the one who initiated this thread. I never thought my issue will go this long. Sorry about that.

    Mine is lenovo Y560 with ubuntu 12.04 in it. I have problem with both wired and wireless.

  4. #24
    Join Date
    Oct 2007
    Beans
    15

    Re: Ubuntu 12.10 on Lenovo G580, connected to local network but no internet

    Hi

    It did the job.

    Now i can connect to the net...

    Code:
    cat /etc/resolv.conf
    hash@ubuntu:~$ cat /etc/resolv.conf
    nameserver 127.0.0.1

    Btw, I wonder what actually happnened? At the beginning i was able to connect to internet from ubuntu, then my laptop suddenly switched off due to over heating and from then on, I couldnt connect to internt, both through wired and wireless. So this sudden turn off changed certain parameters?

  5. #25
    Join Date
    Aug 2005
    Location
    South Carolina, USA
    Beans
    20,104
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Ubuntu 12.10 on Lenovo G580, connected to local network but no internet

    So this sudden turn off changed certain parameters?
    That's certainly possible. I suspect that the system was stopped in the middle of writing to hard disk and the changes or corrections were lost. I suspect the damage could have been a lot worse. I hope you have found and corrected the reason for overheating.

    I'm very glad it's working!
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  6. #26
    Join Date
    Oct 2007
    Beans
    15

    Re: Ubuntu 12.10 on Lenovo G580, connected to local network but no internet

    Hi

    Whenever i make video chatting/meeting i encounter overheating with Ubuntu. I am not sure whether there is any additional driver i would need. when i check System Settings-> Additional drivers, it asked to activate 'AMD proprietary FGLRX graphic driver', which i did. But my laptop is still overheating for certain video application. Even for movies(played in VLC) over time, it is getting over heated. Any suggestion?

  7. #27
    Join Date
    Aug 2005
    Location
    South Carolina, USA
    Beans
    20,104
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Ubuntu 12.10 on Lenovo G580, connected to local network but no internet

    Quote Originally Posted by harishankar View Post
    Hi

    Whenever i make video chatting/meeting i encounter overheating with Ubuntu. I am not sure whether there is any additional driver i would need. when i check System Settings-> Additional drivers, it asked to activate 'AMD proprietary FGLRX graphic driver', which i did. But my laptop is still overheating for certain video application. Even for movies(played in VLC) over time, it is getting over heated. Any suggestion?
    I am not very experienced at video issues. I suggest you ask here: http://ubuntuforums.org/forumdisplay.php?f=332

    I also suggest you avoid overheating until you are sure it is fixed. It is possible to fry your video card and/or your CPU without much warning. I own two Lenovo laptops and I sure hate for either of them to burn up.

    I'd suspect it may be that the fan is not speeding up properly and I'd also Google 'overheating Ubuntu fglrx.'

    There you are: everything I know about video!
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

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