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Omead
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Joined: 06 Oct 2012
Posts: 18

PostPosted: Fri Oct 12, 2012 12:19 pm    Post subject: wireless problem with networkmanager Reply with quote

Hi. My wireless network was working till I changed some factors in the kernel config and rebuilt the kernel. Now netmorkmanager doesn't show wireless connections. Here is the output of "lspci -v"
Code:

02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
   Subsystem: Realtek Semiconductor Co., Ltd. Device 8182
   Flags: bus master, fast devsel, latency 0, IRQ 16
   I/O ports at 3000 [size=256]
   Memory at f1100000 (64-bit, non-prefetchable) [size=16K]
   Capabilities: [40] Power Management version 3
   Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
   Capabilities: [70] Express Endpoint, MSI 00
   Capabilities: [100] Advanced Error Reporting
   Capabilities: [140] Virtual Channel
   Capabilities: [160] Device Serial Number 01-91-81-fe-ff-4c-e0-00
   Kernel driver in use: rtl8192ce

08:00.0 Ethernet controller: Atheros Communications Inc. AR8152 v1.1 Fast Ethernet (rev c1)
   Subsystem: Toshiba America Info Systems Device ff1e
   Flags: bus master, fast devsel, latency 0, IRQ 43
   Memory at f1000000 (64-bit, non-prefetchable) [size=256K]
   I/O ports at 2000 [size=128]
   Capabilities: [40] Power Management version 3
   Capabilities: [48] MSI: Enable+ Count=1/1 Maskable- 64bit+
   Capabilities: [58] Express Endpoint, MSI 00
   Capabilities: [6c] Vital Product Data
   Capabilities: [100] Advanced Error Reporting
   Capabilities: [180] Device Serial Number ff-a8-a1-b6-00-26-6c-ff
   Kernel driver in use: atl1c

and here is the output of "iwconfig"
Code:

eth0      no wireless extensions.

lo        no wireless extensions.

sit0      no wireless extensions.
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DONAHUE
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Joined: 09 Dec 2006
Posts: 6709
Location: Goose Creek SC

PostPosted: Fri Oct 12, 2012 2:46 pm    Post subject: Reply with quote

try changing from wext driver to nl80211. If that doesn't work recompile kernel with:

Quote:
[*] Networking support --->
-*- Wireless --->
--- Wireless
<M> cfg80211 - wireless configuration API
[ ] nl80211 testmode command
[ ] enable developer warnings
[ ] cfg80211 regulatory debugging
[ ] enable powersave by default
[ ] cfg80211 DebugFS entries
[*] cfg80211 wireless extensions compatibility
<M> Common routines for IEEE802.11 drivers
[ ] lib80211 debugging messages (NEW)
<M> Generic IEEE 802.11 Networking Stack (mac80211)
Default rate control algorithm (Minstrel) --->
[ ] Enable mac80211 mesh networking (pre-802.11s) support
[ ] Export mac80211 internals in DebugFS
[ ] Trace all mac80211 debug messages
[ ] Select mac80211 debugging features --->
<*> RF switch subsystem support --->

Device Drivers --->
[*] Network device support --->
[*] Wireless LAN --->
<M> Realtek RTL8192CE/RTL8188CE Wireless Network Adapter


Edit ml80211 to nl80211
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Last edited by DONAHUE on Wed Oct 17, 2012 7:26 pm; edited 2 times in total
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Omead
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Joined: 06 Oct 2012
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PostPosted: Wed Oct 17, 2012 7:14 pm    Post subject: Reply with quote

Ok,after a fresh installation, I have the same problem yet. I have followed any documentation on the wiki with no success. Still "lspci -v" shows the correct driver installed and in use, but networkmanager can not identify the wireless device.
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DONAHUE
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Location: Goose Creek SC

PostPosted: Wed Oct 17, 2012 7:29 pm    Post subject: Reply with quote

does
Code:
ifconfig -a
show the wireless nic? if so, under what name?
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Omead
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PostPosted: Wed Oct 17, 2012 7:45 pm    Post subject: Reply with quote

No it doesn't.
Code:

localhost ~ # ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:26:6c:a8:a1:b6 
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:43

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:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

sit0      Link encap:IPv6-in-IPv4 
          NOARP  MTU:1480  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

localhost ~ # iwconfig
eth0      no wireless extensions.

lo        no wireless extensions.

sit0      no wireless extensions.


localhost ~# lspci -v
.
.
.
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
   Subsystem: Realtek Semiconductor Co., Ltd. Device 8182
   Flags: bus master, fast devsel, latency 0, IRQ 16
   I/O ports at 3000 [size=256]
   Memory at f1100000 (64-bit, non-prefetchable) [size=16K]
   Capabilities: [40] Power Management version 3
   Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
   Capabilities: [70] Express Endpoint, MSI 00
   Capabilities: [100] Advanced Error Reporting
   Capabilities: [140] Virtual Channel
   Capabilities: [160] Device Serial Number 01-91-81-fe-ff-4c-e0-00
   Kernel driver in use: rtl8192ce
   Kernel modules: rtl8192ce
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NeddySeagoon
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PostPosted: Wed Oct 17, 2012 8:58 pm    Post subject: Reply with quote

Omead,

Does dmesg show the fimware being loaded ?
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DONAHUE
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Joined: 09 Dec 2006
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Location: Goose Creek SC

PostPosted: Wed Oct 17, 2012 8:59 pm    Post subject: Reply with quote

ifconfig -a says there is no interface
lspci -v says there is a device and that it has a ?proper? driver assigned

Code:
emerge hwids linux-firmware
lspci -v
updated the pciids database and firmware, any changes for the wireless NIC?
Code:
modprobe -r rtl8192ce
modprobe rtl8192ce
ifconfig -a
got a wireless interface?
Code:
lspci -nnvk
post result for the wireless nic. Edit menuconfig to:
Quote:
<M> Realtek RTL8192CE/RTL8188CE Wireless Network Adapter
<M> Realtek RTL8192SE/RTL8191SE PCIe Wireless Network Adapter
<M> Realtek RTL8192DE/RTL8188DE PCIe Wireless Network Adapter
recompile and recopy kernel; reboot.
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Omead
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PostPosted: Wed Oct 17, 2012 9:18 pm    Post subject: Reply with quote

DONAHUE wrote:
ifconfig -a says there is no interface
lspci -v says there is a device and that it has a ?proper? driver assigned

Code:
emerge hwids linux-firmware
lspci -v
updated the pciids database, any changes for the wireless NIC?
Code:
modprobe -r rtl8192ce
modprobe rtl8192ce
ifconfig -a
got a wireless interface?

Yes. You are my god man. So I think the problem was lack of linux-firmware or hwids. The former one was not installed because I had installed radeon-ucode instead.
Thanks
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rookieljw
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Joined: 15 Jan 2013
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Location: China

PostPosted: Fri Feb 01, 2013 9:02 pm    Post subject: Reply with quote

DONAHUE wrote:
ifconfig -a says there is no interface
lspci -v says there is a device and that it has a ?proper? driver assigned

Code:
emerge hwids linux-firmware
lspci -v
updated the pciids database and firmware, any changes for the wireless NIC?
Code:
modprobe -r rtl8192ce
modprobe rtl8192ce
ifconfig -a
got a wireless interface?
Code:
lspci -nnvk
post result for the wireless nic. Edit menuconfig to:
Quote:
<M> Realtek RTL8192CE/RTL8188CE Wireless Network Adapter
<M> Realtek RTL8192SE/RTL8191SE PCIe Wireless Network Adapter
<M> Realtek RTL8192DE/RTL8188DE PCIe Wireless Network Adapter
recompile and recopy kernel; reboot.

:wink: thanks a lot!
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