wireless interface not detected

[Chiefahol]

JeremyB i will try to run the script but first tell me can it harm the wifi chipset in any way so it does not work in windows?

Nope.

You'll be fine, try it and tell us what happens.

[JeremyB]

It won't hurt the wifi, I was wondering if it still works in windows as the antenna wires may not be connected

[TANUJMINTLINUX]

First thing yes the wifi works perfectly fine in windows and second thing i tried to run the script suggested by JeremyB.

Here is what i did

As i am not able to connect to internet in mint live session so i simply went to the link where wget was pointed to. I copied the script as it is and saved it as "wireless-info" using gedit in windows. Then i live booted to mint 17.2 and copied this "wireless-info" file to desktop and i entered the "desktop" directory in the terminal. The chmod command worked but here is what i got when i executed the script using ./

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bash: ./wireless-info: /bin/bash^M: bad interpreter: No such file or directory

I think i have done something wrong here because this script was supposed to generate a .txt file regarding wireless trouble shooting. So what is the thing that went wrong?

[JeremyB]

If you can find the wireless-info file with the file manager, right click on it and choose properties, then click permissions and make sure there is a check or x in the box for "allow executing file as program" then double click on the file and choose "run in terminal"

A terminal box should open asking for your sudo password, enter the password and shortly later the wireless-info.txt file should show up in the same directory

[ecastrol]

Hi guys. I'm new to Linux Mint.

I tried to install Linux Mint 17.2 KDE from USB and I had a few problems.

When I booted from my USB drive to install Mint it didn't recognize any wifi connections (from which I've had no problems in Windows 8.1 and Ubuntu 14.04 LTS).

And also there was like a pixel blue bar below the mouse pointer.

I thought I was having a problem with the KDE DE, so I tried with Cinnamon DE in Linux Mint 17.2 but had the same problems. But in this case a message appeared in the desktop when I booted: "Running in sofware rendering mode. Cinnamon is currently running without video hardware acceleration..."

I'm running it in an AMD Athlon A8-6410 CPU with AMD Radeon R5 GPU (2.0GHZ integrated).

Please help!!!

[TANUJMINTLINUX]

Sorry for being so stupid to not check execution permission. Any-way here is what the "wireless-info.txt" file says

Code: Select all

########## wireless info START ##########

Report from: 19 Aug 2015 06:24 UTC +0000

Booted last: 19 Aug 2015 06:20 UTC +0000

Script from: 14 Jul 2015 17:04 UTC +0000

##### release ###########################

Distributor ID:	LinuxMint
Description:	Linux Mint 17.2 Rafaela
Release:	17.2
Codename:	rafaela

##### kernel ############################

Linux 3.16.0-38-generic #52~14.04.1-Ubuntu SMP Fri May 8 09:43:57 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Parameters: file=/cdrom/preseed/linuxmint.seed, boot=casper, iso-scan/filename=, quiet, splash, --

##### desktop ###########################

Xfce

##### lspci #############################

02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]
	Subsystem: Hewlett-Packard Company Device [103c:804c]
	Kernel driver in use: rtl8723be

03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 07)
	Subsystem: Hewlett-Packard Company Device [103c:80cc]
	Kernel driver in use: r8169

##### lsusb #############################

Bus 002 Device 003: ID 064e:930b Suyin Corp. 
Bus 002 Device 002: ID 0438:7900 Advanced Micro Devices, Inc. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 0bda:b006 Realtek Semiconductor Corp. 
Bus 001 Device 003: ID 0781:5567 SanDisk Corp. Cruzer Blade
Bus 001 Device 002: ID 0438:7900 Advanced Micro Devices, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 0781:5567 SanDisk Corp. Cruzer Blade
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

##### PCMCIA card info ##################

##### rfkill ############################

0: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no
1: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no

##### lsmod #############################

hp_wmi                 14109  0 
sparse_keymap          13948  1 hp_wmi
rtl8723be              85054  0 
btcoexist              50304  1 rtl8723be
rtl8723_common         23361  1 rtl8723be
rtl_pci                26690  1 rtl8723be
rtlwifi                64255  2 rtl_pci,rtl8723be
mac80211              652777  3 rtl_pci,rtlwifi,rtl8723be
cfg80211              494362  2 mac80211,rtlwifi
wmi                    19193  1 hp_wmi

##### interfaces ########################

auto lo
iface lo inet loopback

##### ifconfig ##########################

eth0      Link encap:Ethernet  HWaddr <MAC 'eth0' [IF]>  
          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)

wlan0     Link encap:Ethernet  HWaddr <MAC 'wlan0' [IF]>  
          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)

##### iwconfig ##########################

eth0      no wireless extensions.

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:off
          

##### route #############################

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface

##### resolv.conf #######################

##### network managers ##################

Installed:

	NetworkManager

Running:

root      1706     1  0 06:20 ?        00:00:00 NetworkManager

##### NetworkManager info ###############

NetworkManager Tool

State: disconnected

- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             unavailable
  Default:           no
  HW Address:        <MAC 'eth0' [IF]>

  Capabilities:
    Carrier Detect:  yes

  Wired Properties
    Carrier:         off

- Device: wlan0 ----------------------------------------------------------------
  Type:              802.11 WiFi
  Driver:            rtl8723be
  State:             disconnected
  Default:           no
  HW Address:        <MAC 'wlan0' [IF]>

  Capabilities:

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points 

##### NetworkManager.state ##############

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true

##### NetworkManager.conf ###############

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

[ifupdown]
managed=false

##### NetworkManager profiles ###########

##### iw reg get ########################

Region: Etc/UTC (based on set time zone)

country 00:
	(2402 - 2472 @ 40), (3, 20)
	(2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
	(2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
	(5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
	(5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS

##### iwlist channels ###################

eth0      no frequency information.

lo        no frequency information.

wlan0     13 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Channel 12 : 2.467 GHz
          Channel 13 : 2.472 GHz

##### iwlist scan #######################

eth0      Interface doesn't support scanning.

lo        Interface doesn't support scanning.

wlan0     No scan results

##### module infos ######################

[rtl8723be]
filename:       /lib/modules/3.16.0-38-generic/kernel/drivers/net/wireless/rtlwifi/rtl8723be/rtl8723be.ko
firmware:       rtlwifi/rtl8723befw.bin
description:    Realtek 8723BE 802.11n PCI wireless
license:        GPL
author:         Realtek WlanFAE	<wlanfae@realtek.com>
author:         PageHe	<page_he@realsil.com.cn>
srcversion:     1A35907BCCEF84FE28F988D
depends:        rtlwifi,rtl_pci,btcoexist,mac80211
vermagic:       3.16.0-38-generic SMP mod_unload modversions 
parm:           swlps:bool
parm:           swenc:using hardware crypto (default 0 [hardware])
 (bool)
parm:           ips:using no link power save (default 1 is open)
 (bool)
parm:           fwlps:using linked fw control power save (default 1 is open)
 (bool)
parm:           msi:Set to 1 to use MSI interrupts mode (default 0)
 (bool)
parm:           debug:Set debug level (0-5) (default 0) (int)
parm:           disable_watchdog:Set to 1 to disable the watchdog (default 0)
 (bool)

[rtl8723_common]
filename:       /lib/modules/3.16.0-38-generic/kernel/drivers/net/wireless/rtlwifi/rtl8723com/rtl8723-common.ko
description:    Realtek RTL8723AE/RTL8723BE 802.11n PCI wireless common routines
license:        GPL
author:         Larry Finger	<Larry.Finger@lwfinger.net>
author:         Realtek WlanFAE	<wlanfae@realtek.com>
srcversion:     7410431A59C24B1BC33226E
depends:        
intree:         Y
vermagic:       3.16.0-38-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        C2:84:ED:AC:CF:0B:47:36:52:C3:4D:23:BE:C3:56:94:42:36:E6:3B
sig_hashalgo:   sha512

[rtl_pci]
filename:       /lib/modules/3.16.0-38-generic/kernel/drivers/net/wireless/rtlwifi/rtl_pci.ko
description:    PCI basic driver for rtlwifi
license:        GPL
author:         Larry Finger	<Larry.FInger@lwfinger.net>
author:         Realtek WlanFAE	<wlanfae@realtek.com>
author:         lizhaoming	<chaoming_li@realsil.com.cn>
srcversion:     1BFD9F9E9693CB93908149A
depends:        mac80211,rtlwifi
vermagic:       3.16.0-38-generic SMP mod_unload modversions 

[rtlwifi]
filename:       /lib/modules/3.16.0-38-generic/kernel/drivers/net/wireless/rtlwifi/rtlwifi.ko
description:    Realtek 802.11n PCI wireless core
license:        GPL
author:         Larry Finger	<Larry.FInger@lwfinger.net>
author:         Realtek WlanFAE	<wlanfae@realtek.com>
author:         lizhaoming	<chaoming_li@realsil.com.cn>
srcversion:     BD8B6223C32D4A4F23648DA
depends:        mac80211,cfg80211
vermagic:       3.16.0-38-generic SMP mod_unload modversions 

[mac80211]
filename:       /lib/modules/3.16.0-38-generic/kernel/net/mac80211/mac80211.ko
license:        GPL
description:    IEEE 802.11 subsystem
srcversion:     376BFDE8E6207B0AAA6339B
depends:        cfg80211
intree:         Y
vermagic:       3.16.0-38-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        C2:84:ED:AC:CF:0B:47:36:52:C3:4D:23:BE:C3:56:94:42:36:E6:3B
sig_hashalgo:   sha512
parm:           max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm:           max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm:           beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm:           probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm:           ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)

[cfg80211]
filename:       /lib/modules/3.16.0-38-generic/kernel/net/wireless/cfg80211.ko
description:    wireless configuration support
license:        GPL
author:         Johannes Berg
srcversion:     33ED2C1448F5AEDBE7AF59E
depends:        
intree:         Y
vermagic:       3.16.0-38-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        C2:84:ED:AC:CF:0B:47:36:52:C3:4D:23:BE:C3:56:94:42:36:E6:3B
sig_hashalgo:   sha512
parm:           ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm:           cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)

##### module parameters #################

[rtl8723be]
debug: 0
fwlps: Y
ips: Y
msi: N
swenc: N
swlps: N

[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
probe_wait_ms: 500

[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00

##### /etc/modules ######################

##### modprobe options ##################

[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci

[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac

[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off

[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211

[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en

##### rc.local ##########################

exit 0

##### pm-utils ##########################

##### udev rules ########################

[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x10ec:0x8136 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x10ec:0xb723 (rtl8723be)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'wlan0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"

##### dmesg #############################

[   26.083181] rtl8723be: Using firmware rtlwifi/rtl8723befw.bin
[   26.124914] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[   26.125300] rtlwifi: wireless switch is on
[   27.811195] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready

########## wireless info END ############

[JeremyB]

Since the script results seem to be from a Live DVD/USB, I would try a new download of Linux Mint and see if wireless works better. Something may be corrupt in your current download with the wireless being that bad and the error you got before

[TANUJMINTLINUX]

Since the script results seem to be from a Live DVD/USB, I would try a new download of Linux Mint and see if wireless works better. Something may be corrupt in your current download with the wireless being that bad and the error you got before

This problem is not only with mint, i also tried live booting ubuntu Mate on same device and same problem is there and so is the case when i tried booting elementary os freya. I almost seems as if none of linux distro has included my device for compatibility.

[TANUJMINTLINUX]

Hi guys. I'm new to Linux Mint.

I tried to install Linux Mint 17.2 KDE from USB and I had a few problems.

When I booted from my USB drive to install Mint it didn't recognize any wifi connections (from which I've had no problems in Windows 8.1 and Ubuntu 14.04 LTS).

And also there was like a pixel blue bar below the mouse pointer.

I thought I was having a problem with the KDE DE, so I tried with Cinnamon DE in Linux Mint 17.2 but had the same problems. But in this case a message appeared in the desktop when I booted: "Running in sofware rendering mode. Cinnamon is currently running without video hardware acceleration..."

I'm running it in an AMD Athlon A8-6410 CPU with AMD Radeon R5 GPU (2.0GHZ integrated).

Please help!!!

Well your device is almost same as mine is ,just a better processor and same problem, but you say wifi worked with ubuntu 14.04 LTS. I didn't tried booting with the ubuntu 14.04 LTS but since mint 17 is based on it that should not have a different result. Anyway i might try to boot ubuntu 14.04 LTS to see if the problem is resolved in my device.

[JeremyB]

This newer firmware might help
https://www.dropbox.com/s/2060sbivgdr73 ... w.bin?dl=0

Then copy it to the firmware directory from wherever you place it in Linux Mint with

Code: Select all

sudo cp rtl8723befw.bin /lib/firmware/rtlwifi/

Then unload and load the driver

Code: Select all

sudo modprobe -r rtl8723be

Code: Select all

sudo modprobe rtl8723be

Hopefully it can load the newer firmware even with the old version loaded

There appears to be an issue with this HP version of the rtl8723be card(Subsystem: Hewlett-Packard Company Device [103c:804c]) and Linux and I haven't seen one that has been solved but most rtl8723be cards seem to work in Linux with just a parameter change

[TANUJMINTLINUX]

No , it did not work. The same situation persists. I would again like to stress that my mobile hotspot is detected by the my laptop , so can there be any problem regarding range of wireless detection.

Also one more thing in the /lib/firmware directory i noticed a directory called RTL8192E can it have any connection to this issue. I contained three .img files.

[TANUJMINTLINUX]

HELLO! anyone please help i am still stuck, any idea, code anything please

[JeremyB]

Try

Code: Select all

sudo modprobe -r rtl8723be
sudo modprobe rtl8723 msi=1

Hopefully it will work better

[TANUJMINTLINUX]

No, nothing seems to work better , still not able to detect wifi signals.Is this just a driver issue or anything else?

[JeremyB]

Not sure. The driver maintainer says there hasn't been any real changes in over a year. Normally I would have you check to make sure the antenna is still connected but it works fine in Windows

[TANUJMINTLINUX]

Maybe this device is just an odd duck. Do you think it will be natively supported by linux mint in future releases or by any linux distro(even debian and nor does Arch seem to work)?

I was thinking to try upgrading to kernel 4.x from main stream , maybe that can help (but i am not too confident about that) . What you guys suggest?

[TANUJMINTLINUX]

Ok , i think the kernel upgrade thing didn't worked out infact after installing the kernel from mainstream there was an error due to which i was not able to boot to GUI during the liveboot and an error message appeared.

[JeremyB]

So did you use Grub to choose your old kernel to boot into? Linux Mint is now installed on a hard drive and not the Live version? If it is installed try http://forums.linuxmint.com/viewtopic.p ... 5#p1051408 possibly with

Code: Select all

echo "options rtl8723be fwlps=N" | sudo tee /etc/modprobe.d/rtl8723be.conf

Reboot

You should be able to remove the problem kernel using the Mint Update Manager, click on View then Linux kernels, select the 4.? kernel that says is installed and click remove or uninstall

[TANUJMINTLINUX]

No, still not working.

[TANUJMINTLINUX]

Update: Tried using "Rosa". Still wireless was not detected but works if placed very close to router as before