My Ubuntu 12.04 installation has an input problem preventing me from clicking near the top of the screen. That is, there is an unclickable area, circa 60 pixels high and stretching all the way across the screen. I will ask about this in a later question.
For now, I would just like to be able to connect to the internet, given this limitation. I am able to access the network connections application by hitting the super key and typing "network connections". There is a LAN and a wireless network available.
The network icon in the bar at the top of the screen shows an empty wedge, which I suppose means that wireless is off. I've attached the cable for the Ethernet connection, but it does not seem to have connected automatically. How can I figure out what's going on?
(I'll happily edit in the output of any relevant terminal commands.)
Thank you.
Edited to add command outputs:
ben@ben-laptop:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:1e:68:cb:cc:3e
inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::21e:68ff:fecb:cc3e/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:712 errors:0 dropped:0 overruns:0 frame:0
TX packets:5243 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:144145 (144.1 KB) TX bytes:267015 (267.0 KB)
Interrupt:48 Base address:0x4000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:4464 errors:0 dropped:0 overruns:0 frame:0
TX packets:4464 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:391786 (391.7 KB) TX bytes:391786 (391.7 KB)
wlan0 Link encap:Ethernet HWaddr 00:16:ea:bd:5a:5a
inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
ben@ben-laptop:~$ lspci | grep -i 'Network'
02:00.0 Network controller: Intel Corporation PRO/Wireless 5100 AGN [Shiloh] Network Connection
ben@ben-laptop:~$ ping -c 5 www.google.com
ping: unknown host www.google.com
The wireless network seems to be available:
ben@ben-laptop:~$ sudo iwlist scan
[sudo] password for ben:
lo Interface doesn't support scanning.
vboxnet0 Interface doesn't support scanning.
wlan0 Scan completed :
Cell 01 - Address: 00:01:3B:AE:38:9A
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=27/70 Signal level=-83 dBm
Encryption key:on
ESSID:"BTHub3-XPMM"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000000133c5ccc08
Extra: Last beacon: 3020ms ago
IE: Unknown: 000B4254487562332D58504D4D
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: Unknown: 2A0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32043048606C
IE: Unknown: 2D1AAC011BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606080000000000000000000000000000000000000000
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F0101
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F20201018C0003A4000027A4000042435E0062322F00
IE: Unknown: DD1E00904C33AC011BFFFF000000000000000000000000000000000000000000
IE: Unknown: DD1A00904C3406080000000000000000000000000000000000000000
IE: Unknown: DD0900037F01010000FF7F
eth0 Interface doesn't support scanning.
Final Note:
I restarted the system and the internet appears to work, via wifi, so the problem is solved, for now.