I’ve looked through the archives, I’ve done an internet search, and just cannot find anything relaed to my problem. My problem is that I cannot access the usb ports. I’m using a Lenovo T540p with the latest Manjaro installed. I’ve used Debian for decades and cannot find the usb anything on Manjaro. I did read that, as the only user on the machine, I SHOULD have access to everything root has. So, am I to undestand ‘root’ doesn’t have access to usb ports? WHY not, and how do I give myself access?
1 Like
What do you mean by that?
It works the same no matter the distribution.
Unless your USB controller is broken - then it won’t work in any distribution. 
What do you mean by “access the usb ports”?
… I assume you installed via some kind of USB device - so the ports clearly do work. 
You said you searched, but really everything you need to know about accessing a USB drive is here USB storage devices - ArchWiki Not to mention many of us just use file manager (Dolphin if you use Plasma),
Please supply the following, in the CLI type:
inxi -zv8
paste the CLI output between 2 sets of triple back ticks “`”
USB offers a lot of functionality.
Could you please specify in more detail what isn’t working for you?
For example, you can connect the following via USB:
- a mouse
- a USB storage device
- a USB-to-serial adapter
- a USB oscilloscope
- a camera
- …
2 Likes
It would help a lot if you were to disclose which device you are expecting find and access.
If your intention is to access an usb port directly in order to write directly to the device attached e.g. an USB serial port you will need to add yourself to uucp group.
Such device USB-RS232 will likely be available at /dev/ttyUSB<x>.
If the device is a HID it will be located at /dev/usb/hiddev<x>.
There is also /dev/hidraw<x>
1 Like
I’m trying to access the USB port connected through an interface for Ham radio digital mode. I’ve done that for years on the Debian machine. Manjaro doesn’t see the serial/usb adapter in the app(s) even though the CAT cable has partial function. I’m used to seeing some version of /dev/usb0, but all I get in Manjaro is a list of tty ports with no usb listed.
The only method I know is to watch what the system sees when the device gets plugged in/removed:
journalctl -f
(journalctl --follow)
or
sudo dmesg -w (for: --follow)
or
sudo dmesg -W (for: --follow-new)
It’ll also be in the full system log, but this is easier to watch and find in real time.
We know nothing about your machine or the device.
I know nothing about Ham radio and have used a modem through a real serial port for the last time probably two decades ago.
2 Likes
It may be one of those tty device files. Best check like @Nachlese said.
1 Like
The name can vary considerably.
It can begin with tty, or it can contain USB or another specific abbreviation.
For example, /dev/ttyACM0 /dev/ttyUSB0 may be the names of the devices.
The name is generated by a udev rule. If the specific udev rule for the device doesn’t exist, no device name is shown.
It is best to use dmesg to look into this
(I’ve also had to adjust udev rules to get specific devices to show up.)
2 Likes
Yes! This.
I have used /dev/ttyUSB* more commonly, for decades!
Plug the device in. The device should appear in /dev/ (I am used to /dev/tty*).
Still waiting on the system information @tracyanne requested 20 hours ago:
Please, help us to help you by providing the output of:
inxi --filter --verbosity=8
or the short form (preferred):
inxi -zv8
- inxi man pages (Arch Manual)
Running `inxi` in `chroot`
Note that any code or command output (such as inxi output) should be placed within a scrollable pre-formatted text enclosure according to forum guidelines.
See here for instructions: 
[MiniHowTo] Present code or command output
Note: Grave accent (or, backtick) characters are used. 
For inline code or to show a single command:
- for example, typing: `code here` will display the text as
code here.
For multi-line command output:
- place text beween two rows of three (```) backtick characters to form a scrollable text box, or …
- use the </> button in the Compose window to achieve the same result.
The empty row between these rows of backtick characters is where to paste any multi-line command output (such as inxi).
An example of a pre-formatted text enclosure:
What is a Quark?
A. In Physics, an elementary particle and fundamental constituent of matter.
B. A character from the Star Trek: "Deep Space Nine" television series.
C. A soft, creamy, usually unsalted cheese traditional to central Europe.
System:
Kernel: 6.18.4-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 15.2.1
clocksource: tsc avail: hpet,acpi_pm
parameters: BOOT_IMAGE=/@/boot/vmlinuz-6.18-x86_64
root=UUID=6754c18b-60e8-4737-b65d-6b482b63c373 rw rootflags=subvol=@
quiet splash resume=UUID=502d64e6-7357-48df-9b43-1a93e800629a
udev.log_priority=3
Desktop: KDE Plasma v: 6.5.4 tk: Qt v: N/A info: frameworks v: 6.21.0
wm: kwin_wayland with: krunner vt: 1 dm: SDDM Distro: Manjaro
base: Arch Linux
Machine:
Type: Laptop System: Dell product: Latitude E5470 v: N/A
serial: <superuser required> Chassis: type: 9 serial: <superuser required>
Mobo: Dell model: 0VHKV0 v: A00 serial: <superuser required> part-nu: 06DE
uuid: <superuser required> Firmware: UEFI-[Legacy] vendor: Dell v: 1.23.3
date: 08/04/2020
Battery:
ID-1: BAT0 charge: 53.9 Wh (100%) condition: 53.9/53.9 Wh (100%) volts: 8.52
min: 7.7 model: LGC-LGC4.20 DELL HK6DV type: Li-ion serial: <filter>
charging: status: full control: start: 50% end: 90% type: adaptive
avail: adaptive,custom,fast,standard,trickle cycles: N/A
Memory:
System RAM: total: 8 GiB available: 7.43 GiB used: 3.63 GiB (48.8%)
Message: For most reliable report, use superuser + dmidecode.
Array-1: capacity: 32 GiB slots: 2 modules: 1 EC: None
max-module-size: 16 GiB note: est.
Device-1: DIMM A type: no module installed
Device-2: DIMM B type: DDR4 detail: synchronous size: 8 GiB
speed: 2133 MT/s volts: curr: 1 width (bits): data: 64 total: 64
manufacturer: Samsung part-no: M471A1G43EB1-CPB serial: <filter>
PCI Slots:
Permissions: Unable to run dmidecode. Root privileges required.
CPU:
Info: model: Intel Core i5-6300U bits: 64 type: MT MCP arch: Skylake
gen: core 6 level: v3 note: check built: 2015 process: Intel 14nm family: 6
model-id: 0x4E (78) stepping: 3 microcode: 0xF0
Topology: cpus: 1x dies: 1 clusters: 2 cores: 2 threads: 4 tpc: 2
smt: enabled cache: L1: 128 KiB desc: d-2x32 KiB; i-2x32 KiB L2: 512 KiB
desc: 2x256 KiB L3: 3 MiB desc: 1x3 MiB
Speed (MHz): avg: 2900 min/max: 400/3000 scaling: driver: intel_pstate
governor: powersave cores: 1: 2900 2: 2900 3: 2900 4: 2900 bogomips: 19999
Flags: 3dnowprefetch abm acpi adx aes aperfmperf apic arat
arch_capabilities arch_perfmon art avx avx2 bmi1 bmi2 bts clflush
clflushopt cmov constant_tsc cpuid cpuid_fault cx16 cx8 de ds_cpl dtes64
dtherm dts epb ept ept_ad erms est f16c flexpriority flush_l1d fma fpu
fsgsbase fxsr ht hwp hwp_act_window hwp_epp hwp_notify ibpb ibrs ida
intel_pt invpcid lahf_lm lm mca mce md_clear mmx monitor movbe mpx msr
mtrr nonstop_tsc nopl nx pae pat pbe pcid pclmulqdq pdcm pdpe1gb pebs pge
pln pni popcnt pse pse36 pti pts rdrand rdseed rdtscp rep_good sdbg sep
smap smep smx ss ssbd sse sse2 sse4_1 sse4_2 ssse3 stibp syscall tm tm2
tpr_shadow tsc tsc_adjust tsc_deadline_timer vme vmx vnmi vpid x2apic
xgetbv1 xsave xsavec xsaveopt xsaves xtopology xtpr
Vulnerabilities:
Type: gather_data_sampling status: Vulnerable: No microcode
Type: ghostwrite status: Not affected
Type: indirect_target_selection status: Not affected
Type: itlb_multihit status: KVM: VMX disabled
Type: l1tf mitigation: PTE Inversion; VMX: conditional cache flushes, SMT
vulnerable
Type: mds mitigation: Clear CPU buffers; SMT vulnerable
Type: meltdown mitigation: PTI
Type: mmio_stale_data mitigation: Clear CPU buffers; SMT vulnerable
Type: old_microcode status: Not affected
Type: reg_file_data_sampling status: Not affected
Type: retbleed mitigation: IBRS
Type: spec_rstack_overflow status: Not affected
Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
prctl
Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
sanitization
Type: spectre_v2 mitigation: IBRS; IBPB: conditional; STIBP: conditional;
RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected
Type: srbds mitigation: Microcode
Type: tsa status: Not affected
Type: tsx_async_abort mitigation: TSX disabled
Type: vmscape mitigation: IBPB before exit to userspace
Graphics:
Device-1: Intel Skylake GT2 [HD Graphics 520] vendor: Dell driver: i915
v: kernel arch: Gen-9 process: Intel 14n built: 2015-16 ports: active: eDP-1
empty: DP-1,HDMI-A-1,HDMI-A-2 bus-ID: 00:02.0 chip-ID: 8086:1916
class-ID: 0300
Display: wayland server: X.org v: 1.21.1.21 with: Xwayland v: 24.1.9
compositor: kwin_wayland driver: X: loaded: modesetting
alternate: fbdev,vesa dri: iris gpu: i915 display-ID: 0
Monitor-1: eDP-1 model: BOE Display 0x05f3 built: 2013 res: mode: 1366x768
hz: 60 scale: 100% (1) dpi: 112 gamma: 1.2 chroma: red: x: 0.573 y: 0.357
green: x: 0.341 y: 0.588 blue: x: 0.161 y: 0.098 white: x: 0.314 y: 0.329
size: 309x173mm (12.17x6.81") diag: 354mm (13.9") ratio: 16:9
modes: 1366x768
EDID-Warnings: 1: parse_edid: unknown flag 0
API: EGL v: 1.5 hw: drv: intel iris platforms: device: 0 drv: iris
device: 1 drv: swrast gbm: drv: iris surfaceless: drv: iris wayland:
drv: iris x11: drv: iris
API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa v: 25.3.3-arch1.1
glx-v: 1.4 direct-render: yes renderer: Mesa Intel HD Graphics 520 (SKL GT2)
device-ID: 8086:1916 memory: 7.25 GiB unified: yes display-ID: :1.0
API: Vulkan v: 1.4.335 layers: 2 device: 0 type: integrated-gpu name: Intel
HD Graphics 520 (SKL GT2) driver: mesa intel v: 25.3.3-arch1.1
device-ID: 8086:1916 surfaces: N/A
Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
de: kscreen-console,kscreen-doctor wl: wayland-info
x11: xdpyinfo, xprop, xrandr
Audio:
Device-1: Intel Sunrise Point-LP HD Audio vendor: Dell driver: snd_hda_intel
v: kernel alternate: snd_soc_avs bus-ID: 00:1f.3 chip-ID: 8086:9d70
class-ID: 0403
API: ALSA v: k6.18.4-1-MANJARO status: kernel-api with: aoss
type: oss-emulator tools: alsactl,alsamixer,amixer
Server-1: sndiod v: N/A status: off tools: aucat,midicat,sndioctl
Server-2: JACK v: 1.9.22 status: off tools: N/A
Server-3: PipeWire v: 1.4.9 status: active with: 1: pipewire-pulse
status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
tools: pactl,pw-cat,pw-cli,wpctl
Network:
Device-1: Intel Ethernet I219-LM vendor: Dell driver: e1000e v: kernel
port: N/A bus-ID: 00:1f.6 chip-ID: 8086:156f class-ID: 0200
IF: enp0s31f6 state: down mac: <filter>
Device-2: Intel Wireless 8260 driver: iwlwifi v: kernel pcie: gen: 1
speed: 2.5 GT/s lanes: 1 bus-ID: 01:00.0 chip-ID: 8086:24f3 class-ID: 0280
IF: wlp1s0 state: up mac: <filter>
IP v4: <filter> type: dynamic noprefixroute scope: global
broadcast: <filter>
IP v6: <filter> type: dynamic noprefixroute scope: global
IP v6: <filter> type: noprefixroute scope: link
Info: services: NetworkManager, systemd-timesyncd, wpa_supplicant
WAN IP: <filter>
Bluetooth:
Device-1: Intel Bluetooth wireless interface driver: btusb v: 0.8 type: USB
rev: 2.0 speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 1-8:6 chip-ID: 8087:0a2b
class-ID: e001
Report: rfkill ID: hci0 rfk-id: 10 state: up address: see --recommends
Logical:
Message: No logical block device data found.
RAID:
Message: No RAID data found.
Drives:
Local Storage: total: 1.93 TiB used: 358.32 GiB (18.1%)
SMART Message: Required tool smartctl not installed. Check --recommends
ID-1: /dev/sda maj-min: 8:0 vendor: Kingston model: SUV500120G
size: 111.79 GiB block-size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s
tech: SSD serial: <filter> fw-rev: 56R6 scheme: MBR
ID-2: /dev/sdb maj-min: 8:16 vendor: Seagate model: Portable
size: 931.51 GiB block-size: physical: 4096 B logical: 512 B type: USB
rev: 3.0 spd: 5 Gb/s lanes: 1 mode: 3.2 gen-1x1 tech: N/A serial: <filter>
fw-rev: 9300 scheme: MBR
ID-3: /dev/sdc maj-min: 8:32 vendor: Seagate model: Portable
size: 931.51 GiB block-size: physical: 4096 B logical: 512 B type: USB
rev: 2.1 spd: 480 Mb/s lanes: 1 mode: 2.0 tech: N/A serial: <filter>
fw-rev: 9300 scheme: MBR
Message: No optical or floppy data found.
Partition:
ID-1: / raw-size: 102.99 GiB size: 102.99 GiB (100.00%)
used: 23.61 GiB (22.9%) fs: btrfs dev: /dev/sda1 maj-min: 8:1 label: N/A
uuid: 6754c18b-60e8-4737-b65d-6b482b63c373
ID-2: /home raw-size: 102.99 GiB size: 102.99 GiB (100.00%)
used: 23.61 GiB (22.9%) fs: btrfs dev: /dev/sda1 maj-min: 8:1 label: N/A
uuid: 6754c18b-60e8-4737-b65d-6b482b63c373
ID-3: /run/media/james/Linux Data raw-size: 419.92 GiB
size: 412.26 GiB (98.18%) used: 334.19 GiB (81.1%) fs: ext4 dev: /dev/sdb2
maj-min: 8:18 label: Linux Data uuid: 06581fee-0c42-43c4-8944-09cb077e8f6b
ID-4: /var/cache raw-size: 102.99 GiB size: 102.99 GiB (100.00%)
used: 23.61 GiB (22.9%) fs: btrfs dev: /dev/sda1 maj-min: 8:1 label: N/A
uuid: 6754c18b-60e8-4737-b65d-6b482b63c373
ID-5: /var/log raw-size: 102.99 GiB size: 102.99 GiB (100.00%)
used: 23.61 GiB (22.9%) fs: btrfs dev: /dev/sda1 maj-min: 8:1 label: N/A
uuid: 6754c18b-60e8-4737-b65d-6b482b63c373
Swap:
Kernel: swappiness: 60 (default) cache-pressure: 100 (default) zswap: yes
compressor: zstd max-pool: 20%
ID-1: swap-1 type: partition size: 8.8 GiB used: 541.3 MiB (6.0%)
priority: -2 dev: /dev/sda2 maj-min: 8:2 label: swap
uuid: 502d64e6-7357-48df-9b43-1a93e800629a
Unmounted:
ID-1: /dev/sdb1 maj-min: 8:17 size: 49.8 GiB fs: ntfs
label: Windows Files, etc. uuid: 06EEE42E261D098A
ID-2: /dev/sdb3 maj-min: 8:19 size: 461.78 GiB fs: ext4 label: Backup&Data
uuid: f0992e22-86a6-499e-a278-87db44aee60c
ID-3: /dev/sdc1 maj-min: 8:33 size: 931.51 GiB fs: btrfs label: Media
uuid: 1978f343-4cff-4931-885c-75780de0eaa8
USB:
Hub-1: 1-0:1 info: hi-speed hub with single TT ports: 12 rev: 2.0
speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
class-ID: 0900
Hub-2: 1-4:3 info: USB2.0 HUB ports: 4 rev: 2.0
speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 power: 100mA
chip-ID: 2148:7022 class-ID: 0900
Device-1: 1-4.2:5 info: MosArt Wireless Keyboard/Mouse
type: keyboard,mouse driver: hid-generic,usbhid interfaces: 2 rev: 1.1
speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 100mA
chip-ID: 062a:4101 class-ID: 0301
Hub-3: 1-4.4:13 info: USB2.0 HUB ports: 4 rev: 2.0
speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 power: 100mA
chip-ID: 2148:7022 class-ID: 0900
Device-1: 1-4.4.2:18 info: Seagate RSS LLC Portable type: mass storage
driver: uas interfaces: 1 rev: 2.1 speed: 480 Mb/s (57.2 MiB/s) lanes: 1
mode: 2.0 power: 100mA chip-ID: 0bc2:2343 class-ID: 0806 serial: <filter>
Device-2: 1-7:4 info: Broadcom BCM5880 Secure Applications Processor
Smartcard reader type: smart card driver: N/A interfaces: 2 rev: 1.1
speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 100mA
chip-ID: 0a5c:5832 class-ID: 0b00 serial: <filter>
Device-3: 1-8:6 info: Intel Bluetooth wireless interface type: bluetooth
driver: btusb interfaces: 2 rev: 2.0 speed: 12 Mb/s (1.4 MiB/s) lanes: 1
mode: 1.1 power: 100mA chip-ID: 8087:0a2b class-ID: e001
Hub-4: 2-0:1 info: super-speed hub ports: 6 rev: 3.0
speed: 5 Gb/s (596.0 MiB/s) lanes: 1 mode: 3.2 gen-1x1 chip-ID: 1d6b:0003
class-ID: 0900
Device-1: 2-1:2 info: Seagate RSS LLC Portable type: mass storage
driver: uas interfaces: 1 rev: 3.0 speed: 5 Gb/s (596.0 MiB/s) lanes: 1
mode: 3.2 gen-1x1 power: 144mA chip-ID: 0bc2:2343 class-ID: 0806
serial: <filter>
Sensors:
System Temperatures: cpu: 66.0 C pch: 54.0 C mobo: 40.0 C
Fan Speeds (rpm): cpu: 0
Repos:
Packages: 1533 pm: pacman pkgs: 1510 libs: 413 tools: pamac pm: flatpak
pkgs: 23
Active pacman repo servers in: /etc/pacman.d/mirrorlist
1: https://mirror.dimensiondata.com/mirrors/manjaro.org/stable/$repo/$arch
2: https://mirrors.sjtug.sjtu.edu.cn/manjaro/stable/$repo/$arch
3: https://mirror.csclub.uwaterloo.ca/manjaro/stable/$repo/$arch
4: https://fosszone.csd.auth.gr/manjaro/stable/$repo/$arch
5: https://mirrors.jlu.edu.cn/manjaro/stable/$repo/$arch
6: https://mirror.futureweb.be/manjaro/stable/$repo/$arch
7: https://mirrors.dotsrc.org/manjaro/stable/$repo/$arch
8: https://muug.ca/mirror/manjaro/stable/$repo/$arch
9: https://irltoolkit.mm.fcix.net/manjaro/stable/$repo/$arch
10: https://ftp.nluug.nl/pub/os/Linux/distr/manjaro/stable/$repo/$arch
11: https://manjaro.grena.ge/stable/$repo/$arch
12: https://mirror.netcologne.de/manjaro/stable/$repo/$arch
13: https://mirrors2.manjaro.org/stable/$repo/$arch
14: https://manjaro.repo.cure.edu.uy/stable/$repo/$arch
15: https://mirror.23m.com/manjaro/stable/$repo/$arch
16: https://edgeuno-bog2.mm.fcix.net/manjaro/stable/$repo/$arch
17: https://repo.iut.ac.ir/repo/manjaro/stable/$repo/$arch
18: https://manjaro.mirrors.lavatech.top/stable/$repo/$arch
19: https://ftp.tu-chemnitz.de/pub/linux/manjaro/stable/$repo/$arch
20: https://manjaro.mirror.wearetriple.com/stable/$repo/$arch
21: https://mirror.vinehost.net/manjaro/stable/$repo/$arch
22: https://mirror.zetup.net/manjaro/stable/$repo/$arch
23: https://mirror.easyname.at/manjaro/stable/$repo/$arch
24: https://mirrors.xtom.jp/manjaro/stable/$repo/$arch
25: https://manjaro.mirrors.uk2.net/stable/$repo/$arch
26: https://mirror.freedif.org/Manjaro/stable/$repo/$arch
27: https://ftp.psnc.pl/linux/manjaro/stable/$repo/$arch
28: https://mirror.xeonbd.com/manjaro/stable/$repo/$arch
29: https://ftpmirror1.infania.net/mirror/manjaro/stable/$repo/$arch
30: https://ftp.linux.org.tr/manjaro/stable/$repo/$arch
31: https://mirror1.sox.rs/manjaro/stable/$repo/$arch
32: https://mirror.init7.net/manjaro/stable/$repo/$arch
33: https://kartolo.sby.datautama.net.id/manjaro/stable/$repo/$arch
34: https://mirrors.atlas.net.co/manjaro/stable/$repo/$arch
35: https://mirrors.sonic.net/manjaro/stable/$repo/$arch
36: https://ftp.cc.uoc.gr/mirrors/linux/manjaro/stable/$repo/$arch
37: https://mirror.datacenter.by/pub/mirrors/manjaro/stable/$repo/$arch
38: https://mirrors.ucr.ac.cr/manjaro/stable/$repo/$arch
39: https://mirror.ufro.cl/manjaro/stable/$repo/$arch
40: http://ftp.uni-kl.de/pub/linux/manjaro/stable/$repo/$arch
41: https://mirrors.ft.uam.es/manjaro/stable/$repo/$arch
42: https://manjaro.ynh.ovh/stable/$repo/$arch
43: https://mirror.telepoint.bg/manjaro/stable/$repo/$arch
44: https://mirror.yandex.ru/mirrors/manjaro/stable/$repo/$arch
45: https://mirror.2degrees.nz/manjaro/stable/$repo/$arch
46: https://mirror.xenyth.net/manjaro/stable/$repo/$arch
47: https://distrohub.kyiv.ua/manjaro/stable/$repo/$arch
48: https://manjaro.ipacct.com/manjaro/stable/$repo/$arch
49: https://mirror.kku.ac.th/manjaro/stable/$repo/$arch
50: https://ftp.riken.jp/Linux/manjaro/stable/$repo/$arch
51: https://ziply.mm.fcix.net/manjaro/stable/$repo/$arch
52: https://manjaro.mirror.garr.it/manjaro/stable/$repo/$arch
53: https://ftp.belnet.be/mirrors/manjaro/repos/stable/$repo/$arch
54: https://ba.mirror.garr.it/mirrors/manjaro/stable/$repo/$arch
55: https://mirror.phoepsilonix.love/manjaro/stable/$repo/$arch
56: https://mirror.nju.edu.cn/manjaro/stable/$repo/$arch
57: https://ftp.gwdg.de/pub/linux/manjaro/stable/$repo/$arch
58: https://manjaro.mirror-services.net/pub/stable/$repo/$arch
59: https://quantum-mirror.hu/mirrors/pub/manjaro/stable/$repo/$arch
60: https://mirrors.tuna.tsinghua.edu.cn/manjaro/stable/$repo/$arch
61: https://manjaro.c3sl.ufpr.br/stable/$repo/$arch
62: https://manjarolinux-mirror.cloud.mu/stable/$repo/$arch
63: https://mirror.alwyzon.net/manjaro/stable/$repo/$arch
64: https://mirror.mobinhost.com/manjaro/stable/$repo/$arch
65: https://manjaro.syxpi.fr/manjaro/stable/$repo/$arch
66: https://cofractal-ewr.mm.fcix.net/manjaro/stable/$repo/$arch
67: https://ftp.tsukuba.wide.ad.jp/Linux/manjaro/stable/$repo/$arch
68: https://codingflyboy.mm.fcix.net/manjaro/stable/$repo/$arch
69: https://mirror.fcix.net/manjaro/stable/$repo/$arch
70: https://ftp.halifax.rwth-aachen.de/manjaro/stable/$repo/$arch
71: https://manjaro.mirror.ac.za/stable/$repo/$arch
72: https://forksystems.mm.fcix.net/manjaro/stable/$repo/$arch
73: https://mirror.truenetwork.ru/manjaro/stable/$repo/$arch
74: https://opencolo.mm.fcix.net/manjaro/stable/$repo/$arch
75: https://linorg.usp.br/manjaro/stable/$repo/$arch
76: https://repo.ialab.dsu.edu/manjaro/stable/$repo/$arch
77: https://mirror.bouwhuis.network/manjaro/stable/$repo/$arch
78: https://nnenix.mm.fcix.net/manjaro/stable/$repo/$arch
79: https://mirrors.pku.edu.cn/manjaro/stable/$repo/$arch
80: https://mirror.kamtv.ru/manjaro/stable/$repo/$arch
81: https://mirror.it4i.cz/manjaro/stable/$repo/$arch
82: https://mirrors.eric.ovh/manjaro/stable/$repo/$arch
83: https://southfront.mm.fcix.net/manjaro/stable/$repo/$arch
84: https://gsl-syd.mm.fcix.net/manjaro/stable/$repo/$arch
85: https://manjaro.nic.cz/stable/$repo/$arch
86: https://mirror.komelt.dev/manjaro/stable/$repo/$arch
87: https://coresite.mm.fcix.net/manjaro/stable/$repo/$arch
88: https://mirror.nyist.edu.cn/manjaro/stable/$repo/$arch
89: https://mirror.koddos.net/manjaro/stable/$repo/$arch
90: http://ossmirror.mycloud.services/os/linux/manjaro/stable/$repo/$arch
91: https://mnvoip.mm.fcix.net/manjaro/stable/$repo/$arch
92: https://nocix.mm.fcix.net/manjaro/stable/$repo/$arch
93: https://mirror.aarnet.edu.au/pub/manjaro/stable/$repo/$arch
94: https://mirror.math.princeton.edu/pub/manjaro/stable/$repo/$arch
95: https://ftp.lysator.liu.se/pub/manjaro/stable/$repo/$arch
96: https://ftp.snt.utwente.nl/pub/linux/manjaro/stable/$repo/$arch
97: https://ftp.free.org/mirrors/repo.manjaro.org/repos/stable/$repo/$arch
98: https://mirror.bakertelekom.fr/manjaro/stable/$repo/$arch
99: https://mirror.leitecastro.com/manjaro/stable/$repo/$arch
100: https://ohioix.mm.fcix.net/manjaro/stable/$repo/$arch
101: https://mirrors.gigenet.com/manjaro/stable/$repo/$arch
102: https://mirror.dc.uz/manjaro/stable/$repo/$arch
103: https://mirrors.cicku.me/manjaro/stable/$repo/$arch
104: https://www.mirrorservice.org/sites/repo.manjaro.org/repos/stable/$repo/$arch
105: https://mirrors.ustc.edu.cn/manjaro/stable/$repo/$arch
106: https://mirror.meowsmp.net/manjaro/stable/$repo/$arch
107: https://ftp.rz.tu-bs.de/pub/mirror/manjaro.org/repos/stable/$repo/$arch
108: https://ask4.mm.fcix.net/manjaro/stable/$repo/$arch
109: https://mirror.dkm.cz/manjaro/stable/$repo/$arch
110: https://manjaro.kurdy.org/stable/$repo/$arch
111: https://ipng.mm.fcix.net/manjaro/stable/$repo/$arch
112: https://mirrors.manjaro.org/repo/stable/$repo/$arch
113: https://mirrors.aliyun.com/manjaro/stable/$repo/$arch
114: https://mirror.ufam.edu.br/manjaro/stable/$repo/$arch
115: https://manjaro.mirror.liquidtelecom.com/stable/$repo/$arch
116: https://mirror.alpix.eu/manjaro/stable/$repo/$arch
117: https://ct.mirror.garr.it/mirrors/manjaro/stable/$repo/$arch
118: https://mirror.archlinux.tw/Manjaro/stable/$repo/$arch
119: https://ftp.caliu.cat/pub/distribucions/manjaro/stable/$repo/$arch
120: https://bd.mirror.vanehost.com/Manjaro/stable/$repo/$arch
121: https://mirror.raiolanetworks.com/manjaro/stable/$repo/$arch
122: https://mirrors.ocf.berkeley.edu/manjaro/stable/$repo/$arch
123: https://volico.mm.fcix.net/manjaro/stable/$repo/$arch
124: https://mirrors.up.pt/pub/manjaro/stable/$repo/$arch
Processes:
CPU top: 5 of 256
1: cpu: 71.3% command: wesnoth pid: 23076 mem: 294.4 MiB (3.8%)
2: cpu: 19.9% command: firefox pid: 90433 mem: 633.3 MiB (8.3%)
3: cpu: 10.1% command: firefox pid: 90887 mem: 373.4 MiB (4.9%)
4: cpu: 6.0% command: firefox pid: 90729 mem: 510.7 MiB (6.7%)
5: cpu: 2.8% command: kwin_wayland pid: 791 mem: 178.2 MiB (2.3%)
Memory top: 5 of 256
1: mem: 692.2 MiB (9.1%) command: plasmashell pid: 974 cpu: 1.8%
2: mem: 633.3 MiB (8.3%) command: firefox pid: 90433 cpu: 19.9%
3: mem: 510.7 MiB (6.7%) command: firefox pid: 90729 cpu: 6.0%
4: mem: 373.4 MiB (4.9%) command: firefox pid: 90887 cpu: 10.1%
5: mem: 363.7 MiB (4.7%) command: xdg-desktop-portal-kde pid: 1281
cpu: 0.0%
Info:
Processes: 256 Power: uptime: 4d 8h 48m states: freeze,mem,disk
suspend: deep avail: s2idle wakeups: 7 hibernate: platform avail: shutdown,
reboot, suspend, test_resume image: 2.96 GiB services: org_kde_powerdevil,
power-profiles-daemon, upowerd Init: systemd v: 258 default: graphical
tool: systemctl
Compilers: gcc: 15.2.1 Shell: Zsh v: 5.9 running-in: konsole inxi: 3.3.40
Mod edit: added three backticks ``` to empty lines before & after the terminal output so that it is correctly formatted as code. In future, please follow the MiniHowTo instructions on presenting code/command output as per the previous post in this topic.
1 Like
Probably unrelated, but your BIOS is out of date, new one HERE
The first user created by the installer will be member of the group wheel which has super user permissions.
Even so - the user does not have direct access to e.g. USB devices or other system related devices, folders etc.
You will still need group membership to have GUI applications access devices. For accessing devices through command line interfaces you will often use sudo to alter or access devices directly.
For accessing and manipulating ttyUSBx devices, membership of the group uucp is required.
what is the output of
lsusb
I have several usb->serial devices - all of them is accessible through /dev/ttyUSB<num> - but do ensure you have added yourself to the uucp group
sudo gpasswd -a $USER uucp
You can monitor udev events by opening a terminal and switch to root context
sudo su
Remove your USB device and run the following command udevadm monitor, then attach your device. You should get an output similar to
# udevadm monitor
monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent
KERNEL[2890.147158] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3 (usb)
KERNEL[2890.187702] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0 (usb)
KERNEL[2890.187811] bind /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3 (usb)
UDEV [2890.212716] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3 (usb)
KERNEL[2890.217979] add /bus/usb/drivers/ch341 (drivers)
KERNEL[2890.218044] add /bus/usb-serial/drivers/ch341-uart (drivers)
KERNEL[2890.218097] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0/ttyUSB0 (usb-serial)
UDEV [2890.219053] add /bus/usb/drivers/ch341 (drivers)
UDEV [2890.219656] add /bus/usb-serial/drivers/ch341-uart (drivers)
KERNEL[2890.229674] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0/ttyUSB0/tty/ttyUSB0 (tty)
KERNEL[2890.229743] bind /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0/ttyUSB0 (usb-serial)
KERNEL[2890.229870] bind /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0 (usb)
UDEV [2890.230032] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0 (usb)
KERNEL[2890.230110] add /module/ch341 (module)
UDEV [2890.230891] add /module/ch341 (module)
UDEV [2890.251640] bind /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3 (usb)
UDEV [2890.256290] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0/ttyUSB0 (usb-serial)
UDEV [2890.261106] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0/ttyUSB0/tty/ttyUSB0 (tty)
UDEV [2890.262566] bind /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0/ttyUSB0 (usb-serial)
UDEV [2890.263572] bind /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0 (usb)
$ lsusb
....
Bus 003 Device 016: ID 1a86:7523 QinHeng Electronics CH340 serial converter
....
This is another adapter
# udevadm monitor
monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent
KERNEL[3079.608902] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3 (usb)
KERNEL[3079.661599] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0 (usb)
KERNEL[3079.661727] bind /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3 (usb)
UDEV [3079.687462] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3 (usb)
KERNEL[3079.693242] add /bus/usb/drivers/pl2303 (drivers)
KERNEL[3079.693303] add /bus/usb-serial/drivers/pl2303 (drivers)
UDEV [3079.695382] add /bus/usb-serial/drivers/pl2303 (drivers)
UDEV [3079.695473] add /bus/usb/drivers/pl2303 (drivers)
KERNEL[3079.721441] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0/ttyUSB0 (usb-serial)
KERNEL[3079.721552] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0/ttyUSB0/tty/ttyUSB0 (tty)
KERNEL[3079.721630] bind /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0/ttyUSB0 (usb-serial)
UDEV [3079.721756] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0 (usb)
KERNEL[3079.721869] bind /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0 (usb)
KERNEL[3079.721927] add /module/pl2303 (module)
UDEV [3079.722528] add /module/pl2303 (module)
UDEV [3079.735294] bind /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3 (usb)
UDEV [3079.740975] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0/ttyUSB0 (usb-serial)
UDEV [3079.747353] add /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0/ttyUSB0/tty/ttyUSB0 (tty)
UDEV [3079.749123] bind /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0/ttyUSB0 (usb-serial)
UDEV [3079.751346] bind /devices/pci0000:00/0000:00:03.1/0000:02:00.0/0000:03:08.0/0000:04:00.1/usb3/3-3/3-3:1.0 (usb)
$ lsusb
....
Bus 003 Device 017: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port / Mobile Phone Data Cable
....
2 Likes
You either misunderstood whatever you read, or whatever you read was far from accurate. There is no correlation between being the only configured user and having root privileges.
No matter whether there is one user, or many users configured on a Linux system, each user is generally able to use sudo to gain privileges necessary to perform tasks that might otherwise only be available to the Super User (root).
Failing that, there is always the option to switch to the Super User directly to perform a series of tasks – this should only be considered a temporary option – there is no world in which running as root continually is recommended.
su -– switches to the Super Userexit– switches back to the current user
As someone who has “used Debian for decades” I imagine you should already have known of all of this.
Regards.
inxi output is now here - but none of this:
It’s for your information.
It doesn’t need to be here if it tells you enough to begin to solve your problem.
The easiest way to check for the device file is ls /dev, then plug the device in and ls /dev again - see what’s different.
If nothing changes then you need to check logs etc for clues.
We are waiting for this information, so we can try to help you.
I was just going by what the install program said. And yes, in Debian I’d have already figured it out, since I did before. The specific commands differ just enough to complicate things. I’m giving Manjaro a chance. Snarkiness from Manjaro users is not a plus.
THAT’s what I needed. Thanks for your help!