No wlan0 found - Wireless issue on Kubuntu 10.10 on Lenovo Ideapad Y450

[wbprime]

I reinstalled my kubuntu 10.10 use Alternative edition.

Everything is OK except the wireless.

I use kde-networkmanager and find no wireless networking interface.

Then I use "lspci". Here is the output:

wbprime@Elvisnake:~$ lspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express Graphics Port (rev 07)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03)
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 03)
00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03)
01:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce GT 130M] (rev a1)
06:00.0 Network controller: Intel Corporation PRO/Wireless 5100 AGN [Shiloh] Network Connection
07:00.0 FireWire (IEEE 1394): JMicron Technology Corp. IEEE 1394 Host Controller
07:00.1 System peripheral: JMicron Technology Corp. SD/MMC Host Controller
07:00.2 SD Host controller: JMicron Technology Corp. Standard SD Host Controller
07:00.3 System peripheral: JMicron Technology Corp. MS Host Controller
07:00.4 System peripheral: JMicron Technology Corp. xD Host Controller
08:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5784M Gigabit Ethernet PCIe (rev 10)

Then I use "ifconfig". Here is the output:

wbprime@Elvisnake:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:23:8b:d5:3f:9e
inet addr:10.4.50.140 Bcast:10.4.50.143 Mask:255.255.255.248
inet6 addr: fe80::223:8bff:fed5:3f9e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3083 errors:0 dropped:0 overruns:0 frame:0
TX packets:2784 errors:0 dropped:0 overruns:0 carrier:0
collisions:551 txqueuelen:1000
RX bytes:1704167 (1.7 MB) TX bytes:555434 (555.4 KB)
Interrupt:17

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:24 errors:0 dropped:0 overruns:0 frame:0
TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1360 (1.3 KB) TX bytes:1360 (1.3 KB)

Then "iwconfig" and the result is:

wbprime@Elvisnake:~$ iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

vboxnet0 no wireless extensions.

I don't know how to. The OS can detect my wireless card directly last time (Kubuntu 10.10).

Can I ask for any help? Thanks

[Tib-Tib]

Re: No wlan0 found - Wireless issue on Kubuntu 10.10 on Lenovo Ideapad Y450

Hey I think am having the same problem, have you found a solution?

[GreyGeek]

Re: No wlan0 found - Wireless issue on Kubuntu 10.10 on Lenovo Ideapad Y450

The solution is here.