I just installed Ubuntu 11.10 on my HP Pavilion DV6 1220 ek and the Laptop doesn't detect any wireless connection. Two hours before that, Windows 7 was running on my machine and the WiFi functioned perfectly.
Does anyone have an idea? I've been trying for several hours to fix it without success.
lspci -nnk | grep -i net -A2:
02:00.0 Network controller : Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01) Subsystem: Hewlett-Packard Company Device [103c:1508] Kernel driver in use: b43-pci-bridge -- 03:00.0 Ethernet controller : Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 02) Subsystem: Hewlett-Packard Company Device [103c:3628] Kernel driver in use: r8169
sudo ifconfig wlan0 up;iwconfig:
SIOCSIFFLAGS: No such file or directory lo no wireless extensions. eth0 no wireless extensions. wlan0 IEEE 802.11bg ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:on