Wifi not working: Mint 19.1, HP laptop, Realtek RTL8723BE network adapter

Questions about WIFI networks and devices
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Roquefort
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Wifi not working: Mint 19.1, HP laptop, Realtek RTL8723BE network adapter

Post by Roquefort » Mon Jul 01, 2019 5:43 am

Hi all,

I have always been using windows and have no experience with Linux. So not sure whether this thread should be in the newbie section. I have tried googling and searching the forum but have not found anything that would fix my problem. Or in some cases I have not had the skills to implement the solutions I have found.

I decided to test Linux Mint as my old HP laptop was getting too slow to run Win10 smoothly. I booted Linux Mint 19.1. from a flash drive and the wifi does not work. That is essentially my problem.

Some random information:
  • On the lower right hand side of the desktop the "wifi networks" option is light grey and cannot be clicked
  • When I try opening driver manager I get the following error message: "Failed to download repositary information, check your internet connection"
  • I do not have the possibility to use a ethernet cable to access internet on the HP latop. However, if needed I can download e.g. drivers with another computer and transfer them to the laptop using a USB drive.
Here is some info of my system:

Code: Select all

mint@mint:~$ inxi -fxz
CPU:       Topology: Dual Core model: Intel Celeron N3060 bits: 64 type: MCP arch: Airmont rev: 4 L2 cache: 1024 KiB 
           bogomips: 6400 
           Speed: 517 MHz min/max: 480/2480 MHz Core speeds (MHz): 1: 480 2: 480 
           Flags: 3dnowprefetch acpi aes aperfmperf apic arat arch_perfmon bts clflush cmov constant_tsc cpuid cx16 cx8 de 
           ds_cpl dtes64 dtherm dts epb ept erms est flexpriority fpu fxsr ht ida lahf_lm lm mca mce mmx monitor movbe msr 
           mtrr nonstop_tsc nopl nx pae pat pbe pclmulqdq pdcm pebs pge pni popcnt pse pse36 pti rdrand rdtscp rep_good sep 
           smep ss sse sse2 sse4_1 sse4_2 ssse3 syscall tm tm2 tpr_shadow tsc tsc_adjust tsc_deadline_timer tsc_known_freq 
           tsc_reliable vme vmx vnmi vpid xtopology xtpr 
mint@mint:~$ inxi -Fxz
System:    Host: mint Kernel: 4.15.0-20-generic x86_64 bits: 64 compiler: gcc v: 7.3.0 Desktop: MATE 1.20.1 
           Distro: Linux Mint 19.1 Tessa base: Ubuntu 18.04 bionic 
Machine:   Type: Laptop System: Hewlett-Packard product: HP Notebook v: N/A serial: <filter> 
           Mobo: Hewlett-Packard model: 81E1 v: KBC Version 71.17 serial: <filter> UEFI: Insyde v: F.22 date: 11/04/2016 
Battery:   ID-1: BAT0 charge: 40.1 Wh condition: 42.2/42.2 Wh (100%) model: Hewlett-Packard Primary status: Discharging 
CPU:       Topology: Dual Core model: Intel Celeron N3060 bits: 64 type: MCP arch: Airmont rev: 4 L2 cache: 1024 KiB 
           flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 6400 
           Speed: 480 MHz min/max: 480/2480 MHz Core speeds (MHz): 1: 480 2: 480 
Graphics:  Device-1: Intel Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics vendor: Hewlett-Packard 
           driver: i915 v: kernel bus ID: 00:02.0 
           Display: x11 server: X.Org 1.19.6 driver: modesetting unloaded: fbdev,vesa resolution: 1366x768~60Hz 
           OpenGL: renderer: Mesa DRI Intel HD Graphics 400 (Braswell) v: 4.5 Mesa 18.0.5 direct render: Yes 
Audio:     Device-1: Intel Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series High Definition Audio 
           vendor: Hewlett-Packard driver: snd_hda_intel v: kernel bus ID: 00:1b.0 
           Sound Server: ALSA v: k4.15.0-20-generic 
Network:   Device-1: Realtek RTL8723BE PCIe Wireless Network Adapter vendor: Hewlett-Packard driver: rtl8723be v: kernel 
           port: 2000 bus ID: 02:00.0 
           IF: wlp2s0 state: down mac: <filter> 
           Device-2: Realtek RTL8101/2/6E PCI Express Fast/Gigabit Ethernet vendor: Hewlett-Packard RTL810xE driver: r8169 
           v: 2.3LK-NAPI port: 1000 bus ID: 03:00.0 
           IF: enp3s0 state: down mac: <filter> 
Drives:    Local Storage: total: 32.87 GiB used: 22.76 GiB (69.2%) 
           ID-1: /dev/mmcblk0 model: HBG4a2 size: 29.12 GiB 
           ID-2: /dev/sda type: USB model: POWERMAX USB DISK size: 3.75 GiB 
Partition: ID-1: / size: 917.5 MiB used: 187.3 MiB (20.4%) fs: overlay source: ERR-102 
Sensors:   System Temperatures: cpu: 39.0 C mobo: 0.0 C 
           Fan Speeds (RPM): N/A 
Info:      Processes: 155 Uptime: 1h 10m Memory: 1.79 GiB used: 650.6 MiB (35.5%) Init: systemd runlevel: 5 Compilers: 
           gcc: 7.3.0 Shell: bash v: 4.4.19 inxi: 3.0.27
Any tips on what I could try doing? I'll be happy to provide you with any other info that is needed.

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Pjotr
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Re: Wifi not working: Mint 19.1, HP laptop, Realtek RTL8723BE network adapter

Post by Pjotr » Mon Jul 01, 2019 6:39 am

1. Try changing the antenna selection:
https://easylinuxtipsproject.blogspot.c ... k.html#ID2
(item 2)

2. a. If that doesn't suffice, install Linux Mint to your hard drive, boot from it and try the rtlwifi_new driver:
https://easylinuxtipsproject.blogspot.c ... k.html#ID7
(item 7)

b. You also need to apply the antenna selection for the rtlwifi_new driver. Find out what the module is called by running lsmod | grep rtl (my guess is: rtlwifi_new) and replace rtl8723be by rtlwifi_new (if that's what the module is called) in the commands. Example:

Code: Select all

echo "options rtlwifi_new ant_sel=2" | sudo tee -a /etc/modprobe.d/rtlwifi_new.conf
Tip: 10 things to do after installing Linux Mint 19.2 Tina
Keep your Linux Mint healthy: Avoid these 10 fatal mistakes
Twitter: twitter.com/easylinuxtips
All in all, horse sense simply makes sense.

Roquefort
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Re: Wifi not working: Mint 19.1, HP laptop, Realtek RTL8723BE network adapter

Post by Roquefort » Mon Jul 01, 2019 2:07 pm

Thanks a lot for the help.

I changed the antenna selection (your first suggestion) and the wifi seems to work now. However, I was disconnected from the wifi-network a few times and then reconnected again after a while. I will probably monitor the wifi and if these connection problems persist then I'll try your second suggestion.

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Pjotr
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Re: Wifi not working: Mint 19.1, HP laptop, Realtek RTL8723BE network adapter

Post by Pjotr » Mon Jul 01, 2019 4:08 pm

Roquefort wrote:
Mon Jul 01, 2019 2:07 pm
Thanks a lot for the help.

I changed the antenna selection (your first suggestion) and the wifi seems to work now. However, I was disconnected from the wifi-network a few times and then reconnected again after a while. I will probably monitor the wifi and if these connection problems persist then I'll try your second suggestion.
Better not change the driver, but try to solve the disconnection problem like this:
https://easylinuxtipsproject.blogspot.c ... html#ID2.1
(item 2.1)
Tip: 10 things to do after installing Linux Mint 19.2 Tina
Keep your Linux Mint healthy: Avoid these 10 fatal mistakes
Twitter: twitter.com/easylinuxtips
All in all, horse sense simply makes sense.

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