As the previous version worked just fine I did not expect to run into troubles. However I found there are no wifi drivers for my computer.
I followed instructions similar to these (https://askubuntu.com/questions/990378/ ... nkpad-e570) and built the driver for rtl8821ce from source. As a part of the process I also had to upgrade kernel to 4.15 with ukuu because process did not work with original (I believe it was 4.10). After that it seemed that it works well. But was it really working well?
Meanwhile I installed docker and played with it a little and noticed that my wifi turns off randomly. It usually helped to turn off and on the wifi or networking via tray icon, or restart service via terminal or combination of both. The intervals with wifi on keep shortening, until - after an hour or two it is unsustainable or not working at all and it needs a reboot. It usually helps, sometimes not.
Wired connection works all the time.
I thought maybe if a driver is wrong, maybe I can buy a wifi dongl to have another option. So I bought Edimax EW-7811Un which worked since I plugged it in the comupter. So now I see I have two wifi cards, but both works the same - I usually see all available ssids around me, I can connect once, then after the connection drops I cannot reconnect without turning the wifi off and on again. Or restarting a networking service.
I checked the Connection Information and it shows two - one called docker0 and another one with my SSID and a note it is a default connection.
So I thought maybe docker caused this so I uninstalled it, but this connection type is still there even after several reboots.
I don't know what info is relevant, so for now I only provide this:
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mimmon@minty ~ $ inxi -Fxz System: Host: minty Kernel: 4.15.0-041500-generic x86_64 (64 bit gcc: 7.2.0) Desktop: Xfce 4.12.3 (Gtk 2.24.28) Distro: Linux Mint 18.3 Sylvia Machine: System: LENOVO (portable) product: 20H500CAMC v: ThinkPad E570 Mobo: LENOVO model: 20H500CAMC v: SDK0J40709 WIN Bios: LENOVO v: R0DET84W (1.84 ) date: 07/21/2017 CPU: Dual core Intel Core i5-7200U (-HT-MCP-) cache: 3072 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 10848 clock speeds: max: 3100 MHz 1: 800 MHz 2: 800 MHz 3: 800 MHz 4: 800 MHz Graphics: Card-1: Intel Device 5916 bus-ID: 00:02.0 Card-2: NVIDIA GM108M [GeForce 940MX] bus-ID: 01:00.0 Display Server: X.Org 1.18.4 driver: nvidia Resolution: email@example.com GLX Renderer: GeForce 940MX/PCIe/SSE2 GLX Version: 4.5.0 NVIDIA 384.111 Direct Rendering: Yes Audio: Card Intel Device 9d71 driver: snd_hda_intel bus-ID: 00:1f.3 Sound: ALSA v: k4.15.0-041500-generic Network: Card-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller driver: r8169 v: 2.3LK-NAPI port: c000 bus-ID: 04:00.0 IF: enp4s0 state: down mac: <filter> Card-2: Realtek Device c821 driver: rtl8821ce port: b000 bus-ID: 05:00.0 IF: wlp5s0 state: down mac: <filter> Card-3: Edimax EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS] driver: rtl8192cu usb-ID: 001-002 IF: wlx74da38e1ff20 state: N/A mac: N/A Drives: HDD Total Size: NA (-) ID-1: /dev/nvme0n1 model: N/A size: 256.1GB Partition: ID-1: / size: 37G used: 20G (55%) fs: ext4 dev: /dev/nvme0n1p5 ID-2: /home size: 68G used: 19G (29%) fs: ext4 dev: /dev/nvme0n1p7 ID-3: swap-1 size: 7.49GB used: 0.00GB (0%) fs: swap dev: /dev/dm-0 RAID: No RAID devices: /proc/mdstat, md_mod kernel module present Sensors: System Temperatures: cpu: 48.5C mobo: N/A gpu: 0.0:44C Fan Speeds (in rpm): cpu: 0 Info: Processes: 216 Uptime: 25 min Memory: 1372.3/7879.7MB Init: systemd runlevel: 5 Gcc sys: 5.4.0 Client: Shell (bash 4.3.481) inxi: 2.2.35 mimmon@minty ~ $ uname -a Linux minty 4.15.0-041500-generic #201802011154 SMP Thu Feb 1 11:55:45 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux