Hi Vladimir, In fact I've tried 'lspci -vnn | grep 14e4' before, and this is the output, JUST one row: 10:00.0 Ethernet controller [0200]: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express [14e4:1693] (rev 02) If I just type 'lspci' I will not find anything related to wireless card either. About the kubuntu thing, did you mean this? http://ubuntuforums.org/showthread.php?t=1349025 I've read it before open this thread. My problem is just the same as that of stark222000: it's wifi card CANNOT be powered on, not that driver thing listed in archwiki or linux wireless. He solved it through booting into windows. But I don't have windows installed and I don't want to install it anymore. So I opened this thread as 'how to power on my wifi card' instead of 'my wifi card dose not work', which will of course be classified as a driver issue. And if I missed anything after my explanation, plz let me know. Thanks! On Thu, 23 Feb 2012 17:07:03 +0900, Vladimir Lomov wrote: > Hello, > ** mercator [2012-02-22 23:35:26 +0800]: > > > Hi guys, > > > After switching from Linux Mint to Archlinux, my wireless card refused to > > show up in lspci. It DOES worked fine under Linux Mint, but .... Below is > > my output of 'lspci -vnn |grep Broadcom' : > > > 10:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5787M > Gigabit > > Ethernet PCI Express (rev 02) > > Sorry, if you find my answer a rude but did you use search engines? See > wiki.archlinux.org? E.g. > https://wiki.archlinux.org/index.php/Broadcom_wireless > > IMHO, proper command must be > $ lspci -vnn | grep 14e4 > > > My laptop is hp 6515b, with a touch panel for the toggle of wifi on/off > > etc. After a search in google I found the problem may be that the power > of > > wifi has been shut down, and solution is to boot into windows and turn > wifi > > on, because the touch panel will not work under Linux (as far as I know), > > Ah, broadcom and HP (6515b), something familiar. I remember a problem > with HP notebook with broadcom wireless card about a year or two ago. > The problem was solved by downloading kernel module source compiling > then and installing (not Archlinux, Kubuntu). > > This Google returns me for "broadcom linux bcm4311" > > http://www.broadcom.com/support/802.11/linux_sta.php > http://linuxwireless.org/en/users/Drivers/b43 > > > And the I found a software named rfkill, hoping it will work. 'rfkill > list' > > out put as follows : > > > 0: hp-wifi: Wireless LAN > > Soft blocked: yes > > Hard blocked: yes > > > After 'rfkill unblock all', I get: > > > 0: hp-wifi: Wireless LAN > > Soft blocked: no > > Hard blocked: yes > > > And still no wireless card detected. So my question is, is there any way > to > > power the wifi on without booting into windows? (in fact, windows has > > diappeared from my laptop for 3 years, and there is no partition on my > > harddisk supporting windows install). > > --- > WBR, Vladimir Lomov > > -- > FORTRAN rots the brain. > -- John McQuillin >