things have been going well, decided to stick with Cinnamon.
i (rashly) decided to apply all the updates available in the Update Manager which included kernel 4.13.0-43. the updates were applied without errors (that i'm aware of).
when i rebooted 18.3 I couldn't access the internet: emails dead, browsers reporting no web access, etc.
i'm relatively linux illiterate so i'm pretty much stuck and desperately looking for help.
i understand from poking around the forums that the following might be helpful:
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$ inxi -Fz
System: Host: cinna18-box Kernel: 4.13.0-43-generic x86_64 (64 bit) Desktop: Cinnamon 3.6.7
Distro: Linux Mint 18.3 Sylvia
Machine: Mobo: ASRock model: Z97 Extreme6 Bios: American Megatrends v: P2.50 date: 10/06/2015
CPU: Quad core Intel Core i7-4790 (-HT-MCP-) cache: 8192 KB
clock speeds: max: 4000 MHz 1: 1299 MHz 2: 1299 MHz 3: 1299 MHz 4: 1299 MHz 5: 1300 MHz 6: 1300 MHz
7: 1405 MHz 8: 1313 MHz
Graphics: Card: NVIDIA GM204 [GeForce GTX 970]
Display Server: X.Org 1.18.4 drivers: nvidia (unloaded: fbdev,vesa,nouveau)
Resolution: 1920x1080@60.00hz
GLX Renderer: GeForce GTX 970/PCIe/SSE2 GLX Version: 4.5.0 NVIDIA 384.111
Audio: Card-1 NVIDIA GM204 High Definition Audio Controller driver: snd_hda_intel
Card-2 Intel 9 Series Family HD Audio Controller driver: snd_hda_intel
Sound: Advanced Linux Sound Architecture v: k4.13.0-43-generic
Network: Card-1: Intel Ethernet Connection (2) I218-V driver: e1000e
IF: enp0s25 state: up speed: 1000 Mbps duplex: full mac: <filter>
Card-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller driver: r8169
IF: enp3s0 state: down mac: <filter>
Drives: HDD Total Size: 4512.9GB (2.0% used) ID-1: /dev/sda model: Samsung_SSD_850 size: 512.1GB
ID-2: /dev/sdb model: ST4000DM000 size: 4000.8GB
Partition: ID-1: / size: 344G used: 25G (8%) fs: ext4 dev: /dev/sda3
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 30.0C mobo: N/A gpu: 41C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 268 Uptime: 3 min Memory: 771.3/15986.6MB Client: Shell (bash) inxi: 2.2.35
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$ sudo lshw -C network
[sudo] password for cinna18:
*-network
description: Ethernet interface
product: Ethernet Connection (2) I218-V
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: enp0s25
version: 00
serial: d0:50:99:29:67:00
size: 1Gbit/s
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k duplex=full firmware=0.1-4 ip=192.168.0.2 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:42 memory:ef500000-ef51ffff memory:ef538000-ef538fff ioport:f040(size=32)
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: enp3s0
version: 11
serial: d0:50:99:29:67:01
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168g-2_0.0.1 02/06/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:39 ioport:d000(size=256) memory:ef400000-ef400fff memory:e2100000-e2103fff
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$ rfkill list
$