I wanted to connect my laptop with a cable. I expected the system to switch to cable connection automatically when cable was plugged in. It didn’t happen.
I am running Plasma KDE. After plugging cable, there is no LAN connection on connections list. I checked on my router and the proper LAN lamp is active when the cable is connected. I checked a different cable and it correctly detects and turns the LAN light on, so it seems that both cable works fine and that router detects connection with the laptop.
I followed some old Arch advice and checked:
sudo systemctl status dhcpcd.service
It was inactive, so I enabled and started it. Just to be sure, I rebooted the system. Checked status again and now it shows that it is active.
Still, no LAN connection on Connections list in system tray. So what is going on? How to check what is missing and why I am not connecting by cable?
inxi -b
System:
Host: Sirius16-Manjaro Kernel: 6.14.7-1-MANJARO arch: x86_64 bits: 64
Desktop: KDE Plasma v: 6.3.5 Distro: Manjaro Linux
Machine:
Type: Laptop System: TUXEDO product: TUXEDO Sirius 16 Gen1 v: N/A
serial: <superuser required>
Mobo: NB04 model: APX958 serial: <superuser required> UEFI: American
Megatrends LLC. v: 1.00A00_20240108 date: 01/08/2024
Battery:
ID-1: BAT0 charge: 79.3 Wh (99.0%) condition: 80.1/80.1 Wh (100.0%)
CPU:
Info: 8-core AMD Ryzen 7 7840HS w/ Radeon 780M Graphics [MT MCP]
speed (MHz): avg: 2395 min/max: 400/5137
Graphics:
Device-1: Advanced Micro Devices [AMD/ATI] Navi 33 [Radeon RX 7600/7600
XT/7600M XT/7600S/7700S / PRO W7600] driver: amdgpu v: kernel
Device-2: Advanced Micro Devices [AMD/ATI] Phoenix1 driver: amdgpu
v: kernel
Display: wayland server: X.org v: 1.21.1.16 with: Xwayland v: 24.1.6
compositor: kwin_wayland driver: X: loaded: amdgpu
unloaded: modesetting,radeon dri: radeonsi gpu: amdgpu
resolution: 2560x1440~165Hz
API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 25.0.5-arch1.1
renderer: AMD Radeon 780M (radeonsi phoenix LLVM 19.1.7 DRM 3.61
6.14.7-1-MANJARO)
Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
de: kscreen-console,kscreen-doctor wl: wayland-info,wlr-randr
x11: xdpyinfo, xprop, xrandr
Network:
Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
driver: N/A
Device-2: Intel Wi-Fi 6E AX210/AX1675 2x2 [Typhoon Peak] driver: iwlwifi
Drives:
Local Storage: total: 2.73 TiB used: 1.13 TiB (41.3%)
Info:
Memory: total: 32 GiB note: est. available: 30.57 GiB used: 7.02 GiB (23.0%)
Processes: 447 Uptime: 24m Shell: Bash inxi: 3.3.38