[SOLVED] No Wifi after install of mint 20.1 (Acer E5-552 with Realtek r8169 driver)

[Scort]

Hi folks ... I'm brand new to Linux world. Very excited to finally take the plunge ... so sick of Windows 10, 2 hour updates. I have installed Linux Mint Cinnamon 20.1 on my aging (5 or 6 years old now) Acer laptop. Install went fairly smooth. Had to work out a few bugs getting it to boot from the usb drive, but finally succeeded. Yay !

However, I now face the issue of being unable to connect to my wifi hotspot created from my LG G4 phone. My other laptop connects fine, and so did this one until the fresh install. I have read a number of posts here regarding this issue and tried quite a few terminal commands suggested my various members, but to no avail, thus far. Would very much appreciate any help you good folks can provide. I'm guessing it might be a driver issue, based on some of my reading, but unsure at this point.

I have not used forums of any type for a very long time, so I respectfully ask for your indulgence while I learn the posting ropes. Here is a copy of one of the terminal commands.

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Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: Acer Incorporated ALI driver: r8169 v: kernel port: 2000 
  bus ID: 01:00.0 chip ID: 10ec:8168 
  IF: enp1s0 state: down mac: <filter>
  Device-2: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter 
  vendor: Lite-On driver: ath10k_pci v: kernel port: 2000 bus ID: 02:00.0 
  chip ID: 168c:0042 
  IF: wlp2s0 state: down mac: <filter>

ps: the icon bottom right does show that I am connected to the Telus hotspot (between 65 and 75 %) of my phone, but I cannot connect to the internet to get updates or downloads of any kind.

[sleeper12]

Let's see more details, post results of:

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 inxi -Fxxxrz && rfkill list && iwconfig && mokutil --sb-state 

[Scort]

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mac@mac-Aspire-E5-552:~$ inxi -Fxxxrz && rfkill list && iwconfig && mokutil --sb-state
System:    Kernel: 5.4.0-58-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: Cinnamon 4.8.5 wm: muffin 4.8.0 
           dm: LightDM 1.30.0 Distro: Linux Mint 20.1 Ulyssa base: Ubuntu 20.04 focal 
Machine:   Type: Laptop System: Acer product: Aspire E5-552 v: V1.09 serial: <filter> 
           Mobo: Acer model: Nami_CZ v: V1.09 serial: <filter> UEFI [Legacy]: Insyde v: 1.09 date: 09/01/2015 
Battery:   ID-1: BAT1 charge: 29.2 Wh condition: 29.2/37.0 Wh (79%) volts: 17.2/14.8 model: SANYO AL15A32 type: Li-ion 
           serial: <filter> status: Full 
           Device-1: hidpp_battery_0 model: Logitech Wireless Mouse serial: <filter> charge: 55% (should be ignored) 
           rechargeable: yes status: Discharging 
CPU:       Topology: Quad Core model: AMD A10-8700P Radeon R6 10 Compute Cores 4C+6G bits: 64 type: MCP arch: Excavator rev: 1 
           L2 cache: 1024 KiB 
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm bogomips: 14373 
           Speed: 1297 MHz min/max: 1300/1800 MHz boost: enabled Core speeds (MHz): 1: 1297 2: 1297 3: 1296 4: 1294 
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] Wani [Radeon R5/R6/R7 Graphics] vendor: Acer Incorporated ALI 
           driver: amdgpu v: kernel bus ID: 00:01.0 chip ID: 1002:9874 
           Display: x11 server: X.Org 1.20.8 driver: amdgpu,ati unloaded: fbdev,modesetting,vesa resolution: 1366x768~60Hz 
           OpenGL: renderer: AMD Radeon R6 Graphics (CARRIZO DRM 3.35.0 5.4.0-58-generic LLVM 10.0.0) v: 4.6 Mesa 20.0.8 
           direct render: Yes 
Audio:     Device-1: Advanced Micro Devices [AMD/ATI] Kabini HDMI/DP Audio driver: snd_hda_intel v: kernel bus ID: 00:01.1 
           chip ID: 1002:9840 
           Device-2: Advanced Micro Devices [AMD] Family 15h Audio vendor: Acer Incorporated ALI driver: snd_hda_intel 
           v: kernel bus ID: 00:09.2 chip ID: 1022:157a 
           Sound Server: ALSA v: k5.4.0-58-generic 
Network:   Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: Acer Incorporated ALI driver: r8169 
           v: kernel port: 2000 bus ID: 01:00.0 chip ID: 10ec:8168 
           IF: enp1s0 state: down mac: <filter> 
           Device-2: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter vendor: Lite-On driver: ath10k_pci v: kernel 
           port: 2000 bus ID: 02:00.0 chip ID: 168c:0042 
           IF: wlp2s0 state: up mac: <filter> 
Drives:    Local Storage: total: 960.33 GiB used: 14.12 GiB (1.5%) 
           ID-1: /dev/sda vendor: Seagate model: ST1000LM024 HN-M101MBB size: 931.51 GiB speed: 6.0 Gb/s rotation: 5400 rpm 
           serial: <filter> rev: 0001 scheme: MBR 
           ID-2: /dev/sdb type: USB vendor: Kingston model: DataTraveler 3.0 size: 28.82 GiB serial: <filter> scheme: MBR 
Partition: ID-1: / size: 915.40 GiB used: 14.12 GiB (1.5%) fs: ext4 dev: /dev/sda5 
Sensors:   System Temperatures: cpu: 53.6 C mobo: N/A gpu: amdgpu temp: 55 C 
           Fan Speeds (RPM): N/A 
Repos:     No active apt repos in: /etc/apt/sources.list 
           Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
           1: deb http://packages.linuxmint.com ulyssa main upstream import backport
           2: deb http://archive.ubuntu.com/ubuntu focal main restricted universe multiverse
           3: deb http://archive.ubuntu.com/ubuntu focal-updates main restricted universe multiverse
           4: deb http://archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse
           5: deb http://security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
           6: deb http://archive.canonical.com/ubuntu/ focal partner
Info:      Processes: 213 Uptime: 6m Memory: 7.31 GiB used: 794.8 MiB (10.6%) Init: systemd v: 245 runlevel: 5 Compilers: 
           gcc: 9.3.0 alt: 9 Shell: bash v: 5.0.17 running in: gnome-terminal inxi: 3.0.38 
1: acer-wireless: Wireless LAN
	Soft blocked: no
	Hard blocked: no
2: acer-bluetooth: Bluetooth
	Soft blocked: yes
	Hard blocked: no
3: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
wlp2s0    IEEE 802.11  ESSID:"TELUS LTE"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: D0:13:FD:28:02:6F   
          Bit Rate=1 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          Link Quality=70/70  Signal level=-36 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:61   Missed beacon:0

lo        no wireless extensions.

enp1s0    no wireless extensions.


Command 'mokutil' not found, but can be installed with:

sudo apt install mokutil

mac@mac-Aspire-E5-552:~$ 

[Scort]

sleeper12,

Here is the output you requested.
Many thanks for your reply. Looking forward to resolving this issue.

Cheers !

[sleeper12]

Turn power management off & see if that helps:

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 sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf 

Reboot

[Scort]

Does not seem to have any effect sleeper 12. Just goes to the next line of terminal.

[sleeper12]

Post results of:

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 sudo apt install mokutil && mokutil --sb-state 

[Larry78723]

Are you dual booting with Win10? If so, start Win10, go to Power Management, and turn off Fast Restart. Shut down then boot into Mint and check your wifi.

[Scort]

Not dual booting. If I am only trying to connect the linux laptop to hotspot, it shows as connected via the icon down in the tray bottom right ..... but cannot get out to the web.

The linux lappy will not connect to the hotspot if my windows laptop is already connected to it. That could be some setting on my phone, however, that will not allow multiple connections.

After executing your last command, another connection showed up in the wifi connections section. Looks like a laptop perhaps.

Here are new results of latest command.

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Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed:
  mokutil
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 22.6 kB of archives.
After this operation, 71.7 kB of additional disk space will be used.
Err:1 http://archive.ubuntu.com/ubuntu focal/main amd64 mokutil amd64 0.3.0+1538710437.fb6250f-1
  Could not resolve 'archive.ubuntu.com'
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/m/mokutil/mokutil_0.3.0+1538710437.fb6250f-1_amd64.deb  Could not resolve 'archive.ubuntu.com'
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

[sleeper12]

I'm not sure what went wrong with that last command, but maybe go into Bios & see if you can disable secure boot.

[Scort]

Update:

Tried to reinstall using uefi mode. Upside was I could now connect to hotspot and reach the web. However, this was in live mode prior to permanent install. After install and reboot, I kept getting a "no bootable device" message. Thought I had really borked it up good. Decided to reflash the usb stick and re-install back in legacy mode. Long story short, everything now works. Did all the updates. Seems no drivers were additionally required. Not sure what the original issue was, but so glad to have it all running. Using the linux lappy for this message

Many thanks to all those that took the time to have a look and help out. Look forward to chatting with you all again down the road.

Let the linux life begin lol ......

Cheers folks !

[sleeper12]

Ok good, sometimes a reinstall fixes all.

[sleeper12]

Are you still using the old 5.4.0-58 kernel that you had before? If so, you might want to update to the 5.4.0-80.

[Scort]

Looks like the kernel was updated to the one you recommend. Many thanks for the suggestion. All looks good.

Cheers,

Scort