WIFI adapter not found in dell Inspiron 15R 5520

hirailyas · Post by **hirailyas** » 2018/05/28 11:06:30

Hi

i recently installed Centos 7. Everything seems fine except wifi is not working. It says wifi adapter not found. I have tried all the help provided in related posts but nothing worked.

Thanks

Post by **TrevorH** » 2018/05/28 12:08:15

You'll need to post the relevant lines from the output from the lspci -nn or lsusb commands for anyone to be able to help.

hirailyas · Post by **hirailyas** » 2018/05/29 17:02:39

Hi,

When i type lspci -nn i get this output

[hirailyas@hirailyas ~]$ lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation 2nd Generation Core Processor Family DRAM Controller [8086:0104] (rev 09)
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09)
00:14.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller [8086:1e31] (rev 04)
00:16.0 Communication controller [0780]: Intel Corporation 7 Series/C216 Chipset Family MEI Controller #1 [8086:1e3a] (rev 04)
00:1a.0 USB controller [0c03]: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #2 [8086:1e2d] (rev 04)
00:1b.0 Audio device [0403]: Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller [8086:1e20] (rev 04)
00:1c.0 PCI bridge [0604]: Intel Corporation 7 Series/C216 Chipset Family PCI Express Root Port 1 [8086:1e10] (rev c4)
00:1c.1 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 [8086:1e12] (rev c4)
00:1d.0 USB controller [0c03]: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #1 [8086:1e26] (rev 04)
00:1f.0 ISA bridge [0601]: Intel Corporation HM77 Express Chipset LPC Controller [8086:1e57] (rev 04)
00:1f.2 SATA controller [0106]: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] [8086:1e03] (rev 04)
00:1f.3 SMBus [0c05]: Intel Corporation 7 Series/C216 Chipset Family SMBus Controller [8086:1e22] (rev 04)
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
02:00.0 Network controller [0280]: Broadcom Limited BCM43142 802.11b/g/n [14e4:4365] (rev 01)

hirailyas · Post by **hirailyas** » 2018/05/29 18:53:03

Hi

i recently installed Centos 7. Everything seems fine except wifi is not working. It says wifi adapter not found. I have tried all the help provided in related posts but nothing worked.

When i type lspci -nn i get this output

[hirailyas@hirailyas ~]$ lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation 2nd Generation Core Processor Family DRAM Controller [8086:0104] (rev 09)
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09)
00:14.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller [8086:1e31] (rev 04)
00:16.0 Communication controller [0780]: Intel Corporation 7 Series/C216 Chipset Family MEI Controller #1 [8086:1e3a] (rev 04)
00:1a.0 USB controller [0c03]: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #2 [8086:1e2d] (rev 04)
00:1b.0 Audio device [0403]: Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller [8086:1e20] (rev 04)
00:1c.0 PCI bridge [0604]: Intel Corporation 7 Series/C216 Chipset Family PCI Express Root Port 1 [8086:1e10] (rev c4)
00:1c.1 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 [8086:1e12] (rev c4)
00:1d.0 USB controller [0c03]: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #1 [8086:1e26] (rev 04)
00:1f.0 ISA bridge [0601]: Intel Corporation HM77 Express Chipset LPC Controller [8086:1e57] (rev 04)
00:1f.2 SATA controller [0106]: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] [8086:1e03] (rev 04)
00:1f.3 SMBus [0c05]: Intel Corporation 7 Series/C216 Chipset Family SMBus Controller [8086:1e22] (rev 04)
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
02:00.0 Network controller [0280]: Broadcom Limited BCM43142 802.11b/g/n [14e4:4365] (rev 01)

i followed http://elrepo.org/tiki/wl-kmod

but in step 4 it says
[hirailyas@hirailyas ~]$ ~/rpmbuild/SOURCES/
bash: /home/hirailyas/rpmbuild/SOURCES/: Is a directory

and in step 5

[hirailyas@hirailyas ~]$ rpmbuild --rebuild --define 'packager hirailyas' /home/hirailyas/rpmbuild/RPMS/x86_64/wl-kmod-6_30_223_271-5.el7.elrepo.nosrc.rpm
error: cannot open /home/hirailyas/rpmbuild/RPMS/x86_64/wl-kmod-6_30_223_271-5.el7.elrepo.nosrc.rpm: No such file or directory

Please help!

mghe · Post by **mghe** » 2018/05/29 19:00:42

Info: http://elrepo.org/tiki/wl-kmod

hirailyas · Post by **hirailyas** » 2018/05/29 20:18:27

Hi
i have already mentioned that i am stuck in step 4 and 5..plz have a look

pjsr2 · Post by **pjsr2** » 2018/05/29 22:01:48

The text of step 4 in http://elrepo.org/tiki/wl-kmod suffers from shorthand notation.

Try to read it as follows:
- Go to http://elrepo.org/tiki/wl-kmod and download from that web page the driver for your platform: Linux® STA 64-bit driver.
- Copy the downloaded file to the directory ~/rpmbuild/SOURCES/
- Then continue with step 5.

perdido · Post by **perdido** » 2018/05/30 10:18:08

Try this:
Press Fn+F2

hirailyas · Post by **hirailyas** » 2018/05/30 10:59:19

Hi

i downloaded Linux® STA 64-bit driver and copied it to ~/rpmbuild/SOURCES/
still there is error

[hirailyas@hirailyas ~]$ rpmbuild --rebuild --define 'packager hirailyas' /home/hirailyas/rpmbuild/RPMS/wl-kmod-6_30_223_271-5.el7.elrepo.nosrc.r
error: cannot open /home/hirailyas/rpmbuild/RPMS/wl-kmod-6_30_223_271-5.el7.elrepo.nosrc.r: No such file or directory

Fn+F2 dosent work.

pjsr2 · Post by **pjsr2** » 2018/05/30 12:06:16

Check you file name. It is ending in .rpm, not .r as in the command you are trying.

CentOS