Wireless not working on Ubuntu 12.04 on Dell Inspiron 15 3521

My device is a Dell Inspiron 15 3521. It came with WIndoes 8 pre-installed. I have installed Ubuntu 12.04 on a separate hard disk partition. WIreless is not working on it.

I first tried by installing the Broadcom STA wireless driver. When that didn't work, I followed some steps given on a forum to remove it and install b43 firmware instead. That didn't help either.

Here are the relevant terminal outputs

lspci -nn | grep 0280

02:00.0 Network controller [0280]: Atheros Communications Inc. Device [168c:0036] (rev 01)

And the entire output for the following command

sudo apt-get update; sudo apt-get install hwinfo grep rfkill; sudo lshw -C network; rfkill list; sudo iwlist scan | egrep -i 'chan|ssid'; cat /etc/network/interfaces; cat /etc/lsb-release; lspci -nnk | grep -iA2 net; lsusb; nmcli nm status; sudo lshw -short; uname -a; sudo updatedb; dmesg | egrep '02:00|80211|acx|at76|ath|b43|bcm|brcm|CX|eth|ipw|ireless|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|ound|p54|prism|rror|rtl|RTL|rt2|RT2|rt3|RT3|rt5|RT5|rt6|RT6|rt7|RT7|usb|witch|wl';sudo dmidecode|egrep 'anufact|roduct|erial|elease'; iwconfig; cat /etc/modprobe.d/* | egrep '80211|acx|at76|ath|b43|bcm|brcm|CX|eth|ipw|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|p54|prism|rtl|rt2|rt3|rt6|rt7|wmi|witch|wl'; cat /var/lib/NetworkManager/NetworkManager.state; sudo hwinfo --netcard ; ps -aux|egrep 'wpa|icd|etwork'; netstat -rn ; cat /etc/resolv.conf; ls -lia /boot; grep tmpfs /etc/fstab; ubuntu-support-status; sudo lsmod

Reading package lists... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
grep is already the newest version.
rfkill is already the newest version.
hwinfo is already the newest version.
The following packages were automatically installed and are no longer required:
  fakeroot dkms
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 515 not upgraded.
  *-network
       description: Ethernet interface
       product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:01:00.0
       logical name: eth0
       version: 05
       serial: 74:86:7a:20:2d:48
       size: 10Mbit/s
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=10.201.136.155 latency=0 link=yes multicast=yes port=MII speed=10Mbit/s
       resources: irq:42 ioport:2000(size=256) memory:c0404000-c0404fff memory:c0400000-c0403fff
  *-network UNCLAIMED
       description: Network controller
       product: Atheros Communications Inc.
       vendor: Atheros Communications Inc.
       physical id: 0
       bus info: pci@0000:02:00.0
       version: 01
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: memory:c0500000-c057ffff memory:afb00000-afb0ffff
1: dell-wifi: Wireless LAN
 Soft blocked: no
 Hard blocked: no
2: dell-bluetooth: Bluetooth
 Soft blocked: no
 Hard blocked: no
4: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no
lo Interface doesn't support scanning.

eth0 Interface doesn't support scanning.

auto lo
iface lo inet loopback

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04.1 LTS"
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
 Subsystem: Dell Device [1028:0597]
 Kernel driver in use: r8169
--
02:00.0 Network controller [0280]: Atheros Communications Inc. Device [168c:0036] (rev 01)
 Subsystem: Dell Device [1028:020c]
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 0cf3:0036 Atheros Communications, Inc.
Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp.
Bus 001 Device 005: ID 064e:812e Suyin Corp.
RUNNING STATE WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN
running connected enabled enabled enabled enabled
H/W path Device Class Description
=======================================================
                             system Inspiron 3521 (xxx123x#ABA)
/0 bus 06RYX8
/0/0 memory 128KiB BIOS
/0/4 processor Intel(R) Core(TM) i3-3217U CPU @ 1.80GHz
/0/4/9 memory 32KiB L1 cache
/0/4/a memory 256KiB L2 cache
/0/4/b memory 3MiB L3 cache
/0/8 memory 32KiB L1 cache
/0/23 memory 4GiB System Memory
/0/23/0 memory DIMM [empty]
/0/23/1 memory 4GiB SODIMM DDR3 Synchronous 1600 MHz (0.6 ns)
/0/100 bridge Ivy Bridge DRAM Controller
/0/100/2 display Ivy Bridge Graphics Controller
/0/100/14 bus Panther Point USB xHCI Host Controller
/0/100/16 communication Panther Point MEI Controller #1
/0/100/1a bus Panther Point USB Enhanced Host Controller #2
/0/100/1b multimedia Panther Point High Definition Audio Controller
/0/100/1c bridge Panther Point PCI Express Root Port 1
/0/100/1c/0 eth0 network RTL8101E/RTL8102E PCI Express Fast Ethernet controller
/0/100/1c.1 bridge Panther Point PCI Express Root Port 2
/0/100/1c.1/0 network Atheros Communications Inc.
/0/100/1d bus Panther Point USB Enhanced Host Controller #1
/0/100/1f bridge Panther Point LPC Controller
/0/100/1f.2 scsi0 storage Panther Point 6 port SATA Controller [AHCI mode]
/0/100/1f.2/0 /dev/sda disk 500GB ST500LT012-9WS14
/0/100/1f.2/0/1 /dev/sda1 volume 499MiB Windows FAT volume
/0/100/1f.2/0/2 /dev/sda2 volume 39MiB Windows FAT volume
/0/100/1f.2/0/3 /dev/sda3 volume 127MiB Windows reserved partition
/0/100/1f.2/0/4 /dev/sda4 volume 489MiB Windows NTFS volume
/0/100/1f.2/0/5 /dev/sda5 volume 159GiB Windows NTFS volume
/0/100/1f.2/0/6 /dev/sda6 volume 244GiB Windows NTFS volume
/0/100/1f.2/0/7 /dev/sda7 volume 11GiB Windows NTFS volume
/0/100/1f.2/0/8 /dev/sda8 volume 1906MiB Linux swap volume
/0/100/1f.2/0/9 /dev/sda9 volume 46GiB EXT4 volume
/0/100/1f.2/1 /dev/cdrom disk DVD+-RW SU-208CB
/0/100/1f.3 bus Panther Point SMBus Controller
/0/1 scsi6 storage
/0/1/0.0.0 /dev/sdb disk xD/SD/M.S.
/0/1/0.0.0/0 /dev/sdb disk
/1 power DELL 6HY5936A
Linux suyash-Inspiron-3521 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
[ 0.000000] No AGP bridge found
[ 0.000000] No NUMA configuration found
[ 0.000000] No AGP bridge found
[ 0.969833] ACPI: No dock devices found.
[ 0.969835] HEST: Table not found.
[ 0.979784] pci 0000:02:00.0: [168c:0036] type 0 class 0x000280
[ 0.979834] pci 0000:02:00.0: reg 10: [mem 0xc0500000-0xc057ffff 64bit]
[ 0.979953] pci 0000:02:00.0: reg 30: [mem 0xffff0000-0xffffffff pref]
[ 0.980091] pci 0000:02:00.0: supports D1 D2
[ 0.980093] pci 0000:02:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[ 0.980106] pci 0000:02:00.0: PME# disabled
[ 0.991045] i2c-core: driver [aat2870] using legacy suspend method
[ 0.991047] i2c-core: driver [aat2870] using legacy resume method
[ 0.991212] usbcore: registered new interface driver usbfs
[ 0.991223] usbcore: registered new interface driver hub
[ 0.991248] usbcore: registered new device driver usb
[ 1.001283] Switching to clocksource hpet
[ 1.065837] pnp: PnP ACPI: found 12 devices
[ 1.072838] pci 0000:02:00.0: no compatible bridge window for [mem 0xffff0000-0xffffffff pref]
[ 1.072901] pci 0000:02:00.0: BAR 6: assigned [mem 0xafb00000-0xafb0ffff pref]
[ 1.162511] Console: switching to colour frame buffer device 170x48
[ 1.162798] input: Lid Switch as /devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input1
[ 1.162823] ACPI: Lid Switch [LID0]
[ 1.298123] ERST: Table is not found!
[ 1.413288] hub 1-0:1.0: USB hub found
[ 1.433264] hub 2-0:1.0: USB hub found
[ 1.433779] hub 3-0:1.0: USB hub found
[ 1.434008] hub 4-0:1.0: USB hub found
[ 1.501160] usbcore: registered new interface driver libusual
[ 1.552319] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[ 1.725070] usb 1-1: new high-speed USB device number 2 using ehci_hcd
[ 1.851509] r8169 0000:01:00.0: eth0: RTL8105e at 0xffffc90000054000, 74:86:7a:20:2d:48, XID 00c00000 IRQ 42
[ 1.857680] hub 1-1:1.0: USB hub found
[ 1.969000] usb 2-1: new high-speed USB device number 2 using ehci_hcd
[ 2.101725] hub 2-1:1.0: USB hub found
[ 2.108946] Switching to clocksource tsc
[ 2.173029] usb 1-1.1: new full-speed USB device number 3 using ehci_hcd
[ 2.336993] usb 1-1.3: new high-speed USB device number 4 using ehci_hcd
[ 2.500940] usb 1-1.4: new high-speed USB device number 5 using ehci_hcd
[ 12.353602] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 12.545290] lp: driver loaded but no devices found
[ 12.645273] Console: switching to colour dummy device 80x25
[ 12.656465] usbcore: registered new interface driver btusb
[ 12.705309] uvcvideo: Found UVC 1.00 device Laptop_Integrated_Webcam_HD (064e:812e)
[ 12.792375] input: Laptop_Integrated_Webcam_HD as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/input/input4
[ 12.793418] usbcore: registered new interface driver uvcvideo
[ 12.800905] usbcore: registered new interface driver rts5139
[ 13.342719] Console: switching to colour frame buffer device 170x48
[ 13.904425] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8
[ 14.269363] EXT4-fs (sda9): re-mounted. Opts: errors=remount-ro
[ 14.804412] type=1400 audit(1381310278.750:9): apparmor="STATUS" operation="profile_load" name="/usr/lib/telepathy/mission-control-5" pid=899 comm="apparmor_parser"
[ 15.147693] r8169 0000:01:00.0: eth0: link down
[ 15.147700] r8169 0000:01:00.0: eth0: link down
[ 15.148093] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 15.150610] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 16.854239] r8169 0000:01:00.0: eth0: link up
[ 16.854589] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 27.065010] eth0: no IPv6 routers present
[ 36.052101] type=1400 audit(1381310300.006:24): apparmor="DENIED" operation="open" parent=1 profile="/usr/lib/telepathy/mission-control-5" name="/usr/share/gvfs/remote-volume-monitors/" pid=1882 comm="mission-control" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[ 179.281786] r8169 0000:01:00.0: eth0: link down
[ 183.383622] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 204.232659] cfg80211: Calling CRDA to update world regulatory domain
[ 204.241498] cfg80211: World regulatory domain updated:
[ 204.241506] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 204.241513] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 204.241519] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 204.241524] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 204.241529] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 204.241534] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 265.953094] r8169 0000:01:00.0: eth0: link up
[ 265.953875] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 276.553801] eth0: no IPv6 routers present
[ 2093.742573] pci 0000:02:00.0: restoring config space at offset 0xc (was 0x0, writing 0xffff0000)
[ 2093.941876] PM: Device 00:08 failed to resume: error -19
[ 2093.993929] usb 1-1.1: reset full-speed USB device number 3 using ehci_hcd
[ 2094.087637] btusb 1-1.1:1.0: no reset_resume for driver btusb?
[ 2094.087640] btusb 1-1.1:1.1: no reset_resume for driver btusb?
[ 2094.157698] usb 1-1.3: reset high-speed USB device number 4 using ehci_hcd
[ 2094.321796] usb 1-1.4: reset high-speed USB device number 5 using ehci_hcd
[ 2094.337701] PM: resume of drv:usb dev:1-1.1:1.0 complete after 593.906 msecs
[ 2094.337706] PM: resume of drv:usb dev:1-1.1:1.1 complete after 593.828 msecs
[ 2097.243636] r8169 0000:01:00.0: eth0: link down
[ 2097.243652] r8169 0000:01:00.0: eth0: link down
[ 2097.244429] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 2098.974012] r8169 0000:01:00.0: eth0: link up
[ 2098.974740] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 2109.124850] eth0: no IPv6 routers present
[ 2167.655968] pci 0000:02:00.0: restoring config space at offset 0xc (was 0x0, writing 0xffff0000)
[ 2167.855252] PM: Device 00:08 failed to resume: error -19
[ 2167.907169] usb 1-1.3: reset high-speed USB device number 4 using ehci_hcd
[ 2168.071134] usb 1-1.4: reset high-speed USB device number 5 using ehci_hcd
[ 2168.235060] usb 1-1.1: reset full-speed USB device number 3 using ehci_hcd
[ 2168.328951] btusb 1-1.1:1.0: no reset_resume for driver btusb?
[ 2168.328955] btusb 1-1.1:1.1: no reset_resume for driver btusb?
[ 2168.578967] PM: resume of drv:usb dev:1-1.1:1.1 complete after 920.040 msecs
[ 2168.578995] PM: resume of drv:usb dev:1-1.1:1.0 complete after 920.086 msecs
[ 2171.068962] r8169 0000:01:00.0: eth0: link down
[ 2171.068970] r8169 0000:01:00.0: eth0: link down
[ 2171.069344] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 2172.925777] r8169 0000:01:00.0: eth0: link up
[ 2172.926514] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 2183.821985] eth0: no IPv6 routers present
 Release Date: 04/18/2013
  Serial services are supported (int 14h)
 Manufacturer: Dell Inc.
 Product Name: Inspiron 3521
 Serial Number: BMGD2X1
 Manufacturer: Dell Inc.
 Product Name: 06RYX8
 Serial Number: .BMGD2X1.CN1296637202E1.
 Manufacturer: Dell Inc.
 Serial Number: BMGD2X1
 Manufacturer: Intel(R) Corporation
 Serial Number: To Be Filled By O.E.M.
 Port Type: Serial Port 16550A Compatible
 Option 1: String1 for Type12 Equipment Manufacturer
 Option 2: String2 for Type12 Equipment Manufacturer
 Option 3: String3 for Type12 Equipment Manufacturer
 Option 4: String4 for Type12 Equipment Manufacturer
 Manufacturer: Empty
 Serial Number: Empty
 Manufacturer: Samsung
 Serial Number: 8703E72E
 Manufacturer: SANYO
 SBDS Serial Number: 0001
 SBDS Manufacture Date: 2009-01-01
lo no wireless extensions.

eth0 no wireless extensions.

install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; : ; }
# which ath5k cannot recover. To prevent this condition, stop
blacklist ath_pci
blacklist eth1394
# replaced by p54pci
blacklist prism54
# replaced by b43 and ssb.
# blacklist bcm43xx
blacklist eth1394
# replaced by p54pci
blacklist prism54
# replaced by b43 and ssb.
blacklist bcm43xx
blacklist uart6850
blacklist twl4030_wdt

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
> hal.1: read hal dataprocess 4850: arguments to dbus_move_error() were incorrect, assertion "(dest) == NULL || !dbus_error_is_set ((dest))" failed in file ../../dbus/dbus-errors.c line 282.
This is normally a bug in some application using the D-Bus library.
libhal.c 3483 : Error unsubscribing to signals, error=The name org.freedesktop.Hal was not provided by any .service files
20: PCI 100.0: 0200 Ethernet controller
  [Created at pci.318]
  Unique ID: rBUF.2LvDZQDuEa3
  Parent ID: z8Q3.ocuX17kQpqA
  SysFS ID: /devices/pci0000:00/0000:00:1c.0/0000:01:00.0
  SysFS BusID: 0000:01:00.0
  Hardware Class: network
  Model: "Realtek RTL8101E/RTL8102E PCI Express Fast Ethernet controller"
  Vendor: pci 0x10ec "Realtek Semiconductor Co., Ltd."
  Device: pci 0x8136 "RTL8101E/RTL8102E PCI Express Fast Ethernet controller"
  SubVendor: pci 0x1028 "Dell"
  SubDevice: pci 0x0597
  Revision: 0x05
  Driver: "r8169"
  Driver Modules: "r8169"
  Device File: eth0
  I/O Ports: 0x2000-0x2fff (rw)
  Memory Range: 0xc0404000-0xc0404fff (ro,non-prefetchable)
  Memory Range: 0xc0400000-0xc0403fff (ro,non-prefetchable)
  IRQ: 42 (129969 events)
  HW Address: 74:86:7a:20:2d:48
  Link detected: yes
  Module Alias: "pci:v000010ECd00008136sv00001028sd00000597bc02sc00i00"
  Driver Info #0:
    Driver Status: r8169 is active
    Driver Activation Cmd: "modprobe r8169"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #14 (PCI bridge)

21: PCI 200.0: 0280 Network controller
  [Created at pci.318]
  Unique ID: B35A.5UXrb_zM6m3
  Parent ID: qTvu.qRn1+FzqsbB
  SysFS ID: /devices/pci0000:00/0000:00:1c.1/0000:02:00.0
  SysFS BusID: 0000:02:00.0
  Hardware Class: network
  Model: "Atheros Network controller"
  Vendor: pci 0x168c "Atheros Communications Inc."
  Device: pci 0x0036
  SubVendor: pci 0x1028 "Dell"
  SubDevice: pci 0x020c
  Revision: 0x01
  Memory Range: 0xc0500000-0xc057ffff (rw,non-prefetchable)
  Memory Range: 0xafb00000-0xafb0ffff (ro,non-prefetchable,disabled)
  Module Alias: "pci:v0000168Cd00000036sv00001028sd0000020Cbc02sc80i00"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #15 (PCI bridge)
Warning: bad ps syntax, perhaps a bogus '-'? See http://procps.sf.net/faq.html
root 840 0.0 0.1 249496 6296 ? Ssl 14:47 0:00 NetworkManager
suyash 1870 0.0 0.0 276636 3700 ? Sl 14:48 0:00 /usr/lib/glib-networking/glib-pacrunner
root 4200 0.0 0.0 7256 1628 ? S 16:58 0:00 /sbin/dhclient -d -4 -sf /usr/lib/NetworkManager/nm-dhcp-client.action -pf /var/run/sendsigs.omit.d/network-manager.dhclient-eth0.pid -lf /var/lib/dhcp/dhclient-9072b21c-988e-405a-be65-1b172cc8be73-eth0.lease -cf /var/run/nm-dhclient-eth0.conf eth0
nobody 4207 0.0 0.0 33012 1280 ? S 16:59 0:00 /usr/sbin/dnsmasq --no-resolv --keep-in-foreground --no-hosts --bind-interfaces --pid-file=/var/run/sendsigs.omit.d/network-manager.dnsmasq.pid --listen-address=127.0.0.1 --conf-file=/var/run/nm-dns-dnsmasq.conf --cache-size=0 --proxy-dnssec
suyash 4862 0.0 0.0 13576 924 pts/2 S+ 17:15 0:00 egrep --color=auto wpa|icd|etwork
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 10.201.136.1 0.0.0.0 UG 0 0 0 eth0
10.201.136.0 0.0.0.0 255.255.254.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.0.1
search iitd.ernet.in iitd.ac.in
total 22816
2097153 drwxr-xr-x 4 root root 4096 Oct 9 14:42 .
      2 drwxr-xr-x 24 root root 4096 Oct 9 00:56 ..
2097157 -rw-r--r-- 1 root root 791281 Jul 27 2012 abi-3.2.0-29-generic
2097158 -rw-r--r-- 1 root root 140432 Jul 27 2012 config-3.2.0-29-generic
      1 drwxr-xr-x 4 root root 4096 Jan 1 1970 efi
2097155 drwxr-xr-x 3 root root 4096 Oct 9 13:52 grub
2097347 -rw-r--r-- 1 root root 14199934 Oct 9 14:42 initrd.img-3.2.0-29-generic
2097159 -rw-r--r-- 1 root root 176764 Nov 27 2011 memtest86+.bin
2097160 -rw-r--r-- 1 root root 178944 Nov 27 2011 memtest86+_multiboot.bin
2097156 -rw------- 1 root root 2882108 Jul 27 2012 System.map-3.2.0-29-generic
2097162 -rw-r--r-- 1 root root 4960752 Aug 24 2012 vmlinuz-3.2.0-29-generic
Support status summary of 'suyash-Inspiron-3521':

You have 19 packages (1.2%) supported until October 2013 (18m)
You have 3 packages (0.2%) supported until April 2015 (18m)
You have 1425 packages (93.6%) supported until April 2017 (5y)

You have 0 packages (0.0%) that can not/no-longer be downloaded
You have 76 packages (5.0%) that are unsupported

Run with --show-unsupported, --show-supported or --show-all to see more details
Module Size Used by
parport_pc 32866 0
ppdev 17113 0
rfcomm 47604 12
bnep 18281 2
nls_iso8859_1 12713 1
nls_cp437 16991 1
vfat 17585 1
fat 61512 1 vfat
snd_hda_codec_hdmi 32474 1
snd_hda_codec_realtek 224066 0
joydev 17693 0
dell_wmi 12681 0
sparse_keymap 13890 1 dell_wmi
snd_hda_intel 33773 3
snd_hda_codec 127706 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 13668 1 snd_hda_codec
snd_pcm 97188 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
dell_laptop 18119 0
dcdbas 14490 1 dell_laptop
snd_seq_midi 13324 0
snd_rawmidi 30748 1 snd_seq_midi
rts5139 351143 0
snd_seq_midi_event 14899 1 snd_seq_midi
snd_seq 61896 2 snd_seq_midi,snd_seq_midi_event
psmouse 87692 0
uvcvideo 72627 0
videodev 98259 1 uvcvideo
v4l2_compat_ioctl32 17128 1 videodev
serio_raw 13211 0
snd_timer 29990 2 snd_pcm,snd_seq
snd_seq_device 14540 3 snd_seq_midi,snd_rawmidi,snd_seq
snd 78855 16 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
btusb 18288 2
bluetooth 180104 23 rfcomm,bnep,btusb
i915 472941 3
soundcore 15091 1 snd
snd_page_alloc 18529 2 snd_hda_intel,snd_pcm
drm_kms_helper 46978 1 i915
wmi 19256 1 dell_wmi
drm 242038 4 i915,drm_kms_helper
mei 41616 0
i2c_algo_bit 13423 1 i915
video 19596 1 i915
mac_hid 13253 0
lp 17799 0
parport 46562 3 parport_pc,ppdev,lp
r8169 62099 0