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Old 12-01-2018, 08:51 AM   #1
stf92
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NetworkManager 1.2.2 does not detect wifi modem.


Slackware 14.2

Hi: I have recently got a new machine. With the old one wifi-menu correctly detects the modem along with several other wifi networks. With the new one, running slackware 14.2-32 NetworkManager detects two wifi networks but not the one whose password I have. Possible cause?

Note: the detected wifi networks are displayed by clicking the network icon in the panel (Xfce 4).
 
Old 12-01-2018, 10:57 AM   #2
MDKDIO
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Is it not your own WiFi network/router?

If it is your own network, try use a cable instead so you're able to update your system (slackpkg update etc...)

networkmanager 1.2.2 is very old. Latest is 1.8.4 for Slackware Linux 14.2

Last edited by MDKDIO; 12-01-2018 at 10:58 AM.
 
1 members found this post helpful.
Old 12-01-2018, 07:50 PM   #3
stf92
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Quote:
Originally Posted by MDKDIO View Post
Is it not your own WiFi network/router?
Not exactly. It is shared by some five guys.
Quote:

If it is your own network, try use a cable instead so you're able to update your system (slackpkg update etc...)
A thing impossible to do as I would have to get a permission.
Quote:
networkmanager 1.2.2 is very old. Latest is 1.8.4 for Slackware Linux 14.2
[/quote] Thanks for your reply. I did a test. I took the notebook to a coffe house and the coffe house modem was not detected. I went to still another coffe house and the same thing. No modem at all was detected by NetworkManager.

Next thing I'll do is to get wifi-menu, a small linux utility, I mean run it on the machine and see what happens.
 
Old 12-01-2018, 09:26 PM   #4
frankbell
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Crucial to this issue is knowing what wireless chipset is installed in this machine. Some manufacturers provide better Linux support than others.

This post is about Broadcom, but, even if it's not a Broadcom chipset, the diagnostics in this post should help: https://www.linuxquestions.org/quest...ux-4175434970/
 
Old 12-02-2018, 07:51 AM   #5
stf92
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# lspci -v
Code:
0d:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
	Subsystem: Hewlett-Packard Company RTL8723BE PCIe Wireless Network Adapter
	Flags: bus master, fast devsel, latency 0, IRQ 16, NUMA node 0
	I/O ports at 3000 [size=256]
	Memory at c4000000 (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] Device Serial Number 00-23-b7-fe-ff-4c-e0-00
	Capabilities: [150] Latency Tolerance Reporting
	Capabilities: [158] L1 PM Substates
	Kernel driver in use: rtl8723be
	Kernel modules: rtl8723be
Output of ifconfig -a:
Code:
eth0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether c8:d3:ff:f6:d7:c7  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1  (Local Loopback)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlan0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 94:e9:79:d7:51:37  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
Code:
# lspci -vnn -d 14e4:
#
I think it is safe to assume all of the appropiate drivers and firmware are present in my system. You recommend wicd as a network manager. I'll first test wifi-menu, as said above. But here a new question. From an arch distro I copied /usr/bin/wifi-menu to my slackware distro and ran it. the resut was this:
Code:
bash-4.3# ./wifi-menu
./wifi-menu: line 3: /usr/lib/netctl/globals: No such file or directory
./wifi-menu: line 4: /interface: No such file or directory
./wifi-menu: line 5: /rfkill: No such file or directory
./wifi-menu: line 6: /wpa: No such file or directory
./wifi-menu: line 236: ensure_root: command not found
./wifi-menu: line 252: report_debug: command not found
./wifi-menu: line 256: load_interface_config: command not found
Scanning for networks... ./wifi-menu: line 270: wpa_supplicant_scan: command not found
./wifi-menu: line 273: is_yes: command not found
failed
./wifi-menu: line 308: report_error: command not found
bash-4.3#
How should I do to run wifi-menu on my slackware O.S.? It is not in slackbuilds.

Last edited by stf92; 12-02-2018 at 09:53 AM.
 
Old 12-02-2018, 09:56 AM   #6
Alien Bob
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Quote:
Originally Posted by stf92 View Post
How should I do to run wifi-menu on my slackware O.S.? It is not in slackbuilds.
Wifi-menu is something used in Arch Linux. It is not part of or available for Slackware, where we use the old-fashioned rc.inet1.conf or else NetworkManager (which has a console client in case you do not want to start X.Org).
 
Old 12-02-2018, 04:15 PM   #7
stf92
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Thanks. I'd like to make two facts more explicit:
(a) NetworkManager is at present detecting some modems (modem= network), precisely those which transmit with enough power (maybe some of them are located in my neighbour's house and so I can't use it).

(b) I spoke about having two machines, a new one I have since only a couple of days and the one I had when I bought the new one (Acer Aspire One), which I'll now call the old one. Experiment: the two machines placed on the same table. The old one, which haas linux on it, detects the modem perfectly well (wifi-menu does). The new one, with Slackware 14.2 on it does not detect my modem, though it does detect mmodems in the neighbourhood.
 
Old 12-02-2018, 06:36 PM   #8
stf92
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Some new facts.

Actually this modem transmits two signals. One is Fibertel 451 2.4GHz and the other Fibertel 451 5.8GHz. I discovered I can use anyone of them (old linux machine). Assuming 2.4 and 5.8GHz are the transmition frequencies, and considering the new machine (slackware 14.2) only detects 2.4GHz, I think some drivers may be missing in the slackware distro (higher frequency = newer device).

However, I'm ready to fall back on 2.4, if only to see Slackware at work. That is, for the moment we'll entirely forget about the network in 5.8 and try to use that in 2.4GHz. But here another fact.

I click the network icon in the panel (Xfce4) and see 2.4 is listed (curiously wifi-menu detects over ten different networks and the new machine only one: Fibertel 451 2.4GHz, but this makes me think of differences in the hardware. The old machine was manufactured a couple of years ago. A year for the new one I do not yet know). I select it and NetworkManager asks for a password. I give him the password and it seems it has been accepted (he doesn't ask again). The password I know it because I used it in the old machine. However, placing the mouse cursor over the icon it says "No network connection"!

I go to the console where I started X and find the following:
Code:
(nm-applet:1142) Gtk warning **: Failed to fetch network locations: the specified location  is not mounted.
It is this second fact I want to concentrate in now.

Last edited by stf92; 12-02-2018 at 07:02 PM.
 
Old 12-02-2018, 09:51 PM   #9
frankbell
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You need to get that Realtek card working. What type of network management application you are using is irrelevant to the connectivity issue.

This thread might help: https://www.linuxquestions.org/quest...er-4175567757/
 
Old 12-03-2018, 05:50 AM   #10
stf92
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Thanks. I am installing Arch in the new machine (the one with the problem) because so I can use wifi-menu. As they use pacman for the installation the first step is to type 'wifi-menu' to get connected to internet. But alas, watch this:
Code:
# wifi-menu
Scanning for networks... failed.
No networks found.
If some other O.S. runs in the new machine (from now on refered to as the machine) and has no problems with the wi-fi then the problem iss in the software. I'll begin with Debian.

I don't understand.I went to https://github.com/lwfinger/rtlwifi_new/tree/rock.new_btcoex" and clicking the RTL8723BE i find I have to download some twenty files! Why are they not included in a single file?

Last edited by stf92; 12-03-2018 at 06:35 AM.
 
Old 12-03-2018, 08:41 AM   #11
allend
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A web search took me to this.
I quote from post #4 in that thread.
Quote:
HP seems to like to connect the wireless antenna to the aux connection, and not the primary.

To fix this in linux, create a text file named rtl8723be.conf in /etc/modprobe.d
and add the following into that file:

options rtl8723be fwlps=n ant_sel=2

save and reboot. Now you should see connections populating the conectoid.

(Note: if ant_sel=2 doesn’t fix it, change it to 1, and try again.)
 
Old 12-03-2018, 09:06 AM   #12
stf92
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I ran the Debian installer, chose the wifi hardware component (the RTL8723) and got the following:[code]
Invalid passphrase. The WPA/WPA2 PSK passphrase was either too llong (more than 64 characters) or too short (less than 8 characters).
 
Old 12-03-2018, 03:23 PM   #13
stf92
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Quote:
Originally Posted by allend View Post
A web search took me to this.
I quote from post #4 in that thread.
I followed the procedure and do not find any connection at all.
 
Old 12-03-2018, 03:59 PM   #14
_peter
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Quote:
Originally Posted by stf92 View Post
Not exactly. It is shared by some five guys.A thing impossible to do as I would have to get a permission.
the above sounds weird, can't you plug a simple ethernet CAT5 cable between the router and your computer with the owner of the router being around?

Quote:
Originally Posted by stf92 View Post
Invalid passphrase. The WPA/WPA2 PSK passphrase was either too llong (more than 64 characters) or too short (less than 8 characters).
passphrase you say? i thought the term asked by network-manager or wifi-menu was password not passphrase, maybe you are entering the wrong credentials to the wrong window.

Redoing what allend advised you to do on a clean slackware install with network-manager is wyse.
 
Old 12-03-2018, 04:24 PM   #15
stf92
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That's exactly what I did. The OS has been installed yesterday. This thread began trying to explain why the network was not detected. As the old network (there are two of them, one @2.4GHz and another @5.8GHz), the one at 2.4 GHz is detected and I have its password the thread is now solved. There is a second problem now: after selection of 2.4 by me and after giving NetworkManager the correct password, Network Manager says "No network connection". So, I'll open another thread to deal with this unexpected problem.

Last edited by stf92; 12-03-2018 at 07:37 PM.
 
  


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