Questions tagged [devices]

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5
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2answers
333 views

What is the difference between Filesystem and “Extended Partition” in Disks?

I am struggling to understand the output from the "Disks" program. Here I see two different partitions, both pointing to the same disk space. One is devices /dev/sda3 (highlighted) and the other is /...
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0answers
16 views

Added RAM memory is not recognized : dmidecode shows no added new RAM info and free command does not increase the free size

Environment Info Ubuntu ver : Ubuntu 18.04.3 LTS Mother Board : SuperMicro C9X299-PG300F Initial RAM size : Total 16GB, one 16GB card at one slot RAM type : MTA16ATF2G64AZ-2G6E1 Current status I ...
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0answers
26 views

Missing ipmi Device (Remote Access Card) / ipmitool Failue: Could not open device at /dev/ipmi0 … No such file or directory

I recently bought second-hand a HP Proliant N36L Microserver, and I'm having trouble configuring it for remote access on Ubuntu Server 20.04 LTS. It came with a HP Remote Access card, but when I try ...
1
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1answer
22 views

What's the difference between /dev/sg0 and /dev/sr0?

$ uname -srvmpio Linux 5.4.0-31-generic #35-Ubuntu SMP Thu May 7 20:20:34 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux $ sudo cdrecord -inq Device was not specified. Trying to find an appropriate drive... ...
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0answers
42 views

Ubuntu 20.04 - Audio Output Device Disappeared - no DispayPort/HDMI (Built in) Available

I'm using Ubuntu 20.04 on a multi boot system. I have a Lenovo m93p Tiny attached to a TV via the DisplayPort adapted to an HDMI connection to a Samsung TV. The sound works fine on all the other ...
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0answers
11 views

Unable to connect second monitor on ubuntu 20.4

I have tried the steps: Open the Activities overview and start typing Settings. Click on Settings. Click Devices in the sidebar. Click Displays in the sidebar to open the panel. In the display ...
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0answers
32 views

How can I use a hardware device that is “detected”?

I have the following piece of hardware in my device (ASUS T102HA 2in1 tablet/laptop): https://linux-hardware.org/index.php?id=pci:8086-22b8-1043-1400 The page says that it is detected by latest ...
1
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3answers
154 views

How can I prevent a third party software to gather data from my device?

For work purposes I have to use a not open source software that collects and sends to the producer MAC address, other device IDs and other hardware datas (from its privacy policy, which is not very ...
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0answers
18 views

What Linux utility enables knowing devise is running or shut?

I'm seeking any solution to detect hardware instances which are in or out of operation (till restart) in Linux distro like Ubuntu 18.04. Essentially, what terminal-built or loadable utility serves to ...
0
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1answer
96 views

GPIO for Raspberry PI GPIO Group

I grabbed the image for Ubuntu on Raspberry PI over here https://ubuntu.com/download/raspberry-pi loaded a L928N python program via a virtualenv as the ubuntu user and got an error. Did some digging ...
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2answers
34 views

Ubuntu wierd sound of connected device

On my fresh Ubuntu 18.04 I keep hearing sound that usually appears while connecting usb stick or something. Like something was connecting and disconnecting all the time, every few minutes. What do I ...
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0answers
294 views

Using DSLR camera as a webcam

I am trying to use my Canon DSLR as a webcam, on an Ubuntu machine. The camera does not show up as /dev/video*. The camera shows up in hwinfo --usb: 19: USB 00.0: 10f01 WebCam [Created at usb.122] ...
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0answers
27 views

SSD not found anymore (not listed by parted, nor lsblk etc, but bus found in lshw)

EDIT: I think the SSD is juste dead, I bought a new one, all is fine, I'll see if I can get the data back (unlikely imo) I have a dual-boot Windows 10 / Ubuntu 18.04 on my laptop (HP Omen 15-5000 NF) ...
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0answers
32 views

Webcam Renaming

I'm running Ubuntu 18 and I've got a dual webcam setup for Zoom. They're both Logitech c615 cameras and the fact that the system is giving them the same default name is confusing. I'd like to change ...
1
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1answer
76 views

Mouse and Touchpad Glitch

For Ubuntu 19.10 Users: When I go into Settings --> Devices and click on "Mouse and Touchpad" the window starts to flicker and glitch out. It is toggling between the two menu states shown in the ...
1
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1answer
37 views

How to understand which device is which in the /dev directory

I am new in UNIX/Linux programming. I need a clear reference of each file in /dev directory and which file refers to which devices. I have read many posts but its not only confusing but also sharing ...
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0answers
49 views

External USB wifi adapter disappeared after last kernel upgrade - Ubuntu 18.04 [duplicate]

So, I just received the last kernel upgrade in my Ubuntu 18.04 and, when I boot, my USB wifi adapter won't start (the light that indicates it's on remains dark). It's not even discoverable. It works ...
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0answers
32 views

How to list device activity

I want to list or display all the activity generated by an external device. For example, all that I copied to and from it with detailed information: size, places, etc.
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1answer
40 views

How to disable a mobile broadband device

I am using a dell latitude E5250 which comes with support for a SIM card. On bootup I get a message "The mobile broadband device cdc-wdm0 requires a SIM PUK before it can be used" I dont need this and ...
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0answers
75 views

Can't find /dev/video on MacBook

I installed ubuntu 19.10 on my MacBook and tried to use the integrated webcam of MacBook, but when using ls /dev/video* I can't get any device. On my other laptop I can get /dev/video0 which is the ...
0
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1answer
61 views

How do I list all devices and learn how to enable/disable them in Ubuntu 19.10?

I'm looking for a way to see all the devices (e.g. touchpad etc.) and to enable/disable them.
0
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1answer
93 views

18.04: USB optical drive not recognized on Gigabyte Z390

I have just installed 18.04 on a custom built new htpc with a Gigabyte Aorus Z390 I mainboard and would like to connect my external cd-drive via a USB type-C port. My optical drive only has USB-output ...
0
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1answer
47 views

Ubuntu Server 18.04 Downloading issue from bootable USB

Recently I got a server machine I wanted to use for video game servers and I got Ubuntu server 18.04 bootable USB. It launched into the set up screen starting with language and keyboard. Then to ...
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0answers
30 views

what device might control an JAE 50 pin hard drive drive coil wipe function?

I have a CF-28 Panasonic toughbook. it has a coil around the hard drive that can allegedly wipe the (mechanical) disk in the event I so choose. It is attached on pins 1,2 of the JAE50 pin header, ...
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0answers
280 views

Help with Ubuntu 18.04 and GoPro Hero 6 Black

When I connect my camera to my PC, on the camera screen, a USB Connected message appears, but I can't find it on Nautilus like a USB stick. If I put the microSD on the PC, I can access it from ...
2
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0answers
527 views

Identify devices from lsof

We have certain Ubuntu (18.04) servers operating .NET Core apps on Kestrel. Recently the apps and OSes have been hanging, requiring entire VM restart. What we found was the app had way too many file ...
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0answers
78 views

Can't connect bluetooth devices

Looking to add a bluetooth mouse and a bluetooth keyboard. Mouse is absolutely fine on it's own. Both together wont work even if they are both status is connected. Keyboard on it's own will turn the ...
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0answers
47 views

Devices on Konqueror

As it happens in Konqueror 5.0.97 there is no sidebar which was earlier toggled by F9, which is sad, because it was very useful. Still, is it possible to view the attached devices (harddrive, usb) as ...
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0answers
239 views

what is the device name of the microphone in ubuntu?

I want to redirect audio from a source like vlc media player to the microphone device.I would like to do it via the command-line, rather than using a GUI based software. what device should I be using? ...
2
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1answer
122 views

How can I clean up devices such as `media*` or `tty*` under `/dev` properly from terminal?

I am running Ubuntu 18.04.2 LTS on a DELL XPS13 9343 and seem to be suffering from a kernel bug (reference: https://www.spinics.net/lists/linux-media/msg135812.html), which leads to the problem that I ...
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0answers
2k views

Device /dev/sdb excluded by a filter Ubuntu 18.04.02 Server Edition (just installed Ubuntu)

In the PC with two disks I just installed Ubuntu 18.04.02 Server Edition in one of them. marco@pc:$ sudo pvdisplay -- Physical volume --- PV Name /dev/sda3 VG Name ubuntu-vg PV Size ...
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0answers
39 views

Ubuntu 18.04.2 minimal armhf slow to boot

I have a custom board using an IMX6 processor and have a minimal Ubuntu 18.04.2 installed, I am experiencing slow boot times ~30s (~5s kernel, rest is userspace). From what I can tell a lot of the ...
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0answers
27 views

Bluetooth joystick becomes unresponsive

I'm using a decent Bluetooth joystick to control an electric vehicle. I was using a Windows PC and a microcontroller recently and I had no problem with this joystick. I've decided to go with ROS (...
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0answers
34 views

How to disconnect an internal (“fixed”) USB device on Ubuntu 18.04?

When I type lsusb I see a list of connected usb devices. One of them is 0955:7002 - "Nvidia Stereo Controller", which causes me a lot of problems. I want to remove the device but I really don't ...
0
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0answers
41 views

Main disk letter suddenly changed and extraneous disk devices appeared

For some reason, my main disk, which used to be /dev/sda, is suddenly now /dev/sde. There are no other disks attached to the computer. Looking into the /dev directory, there seem to be four extraneous ...
5
votes
1answer
768 views

How to disable “Select Audio Device” pop-up on Ubuntu 18.04

every time I plugged my headphone in my laptop I get this annoying pop-up that blocks the entire desktop until I select an option. It's very annoying. How can I disable it? I cannot believe that in ...
1
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0answers
131 views

Want to know why Webcam can't be captured by Cheese while VLC picks it up

I installed Ubuntu 18.04 LTS as a guest on OSX VirtualBox, and enabled the builtin webcam on Macbook. While I thought the webcam wasn't working because sudo cheese command wasn't picking up anything ...
3
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1answer
282 views

How to see memory's manufacture date?

I bought new memory for my Thinkpad. Some Windows softwares can tell me the memory's manufacturer and date. Is there any Linux software that can do that? dmidecode -t memory and lshw -class memory ...
0
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2answers
842 views

Ubuntu 18.04 editing netplan in nano “etc/netplan /01-netcfg.yaml line 1 column 9: mapping values are not allowed in this context”

So, quite simply, I'm beyond frustrated right now. I bought this PC two days ago from a guy who has XFCE downloaded on it and had Wicd as the network utility, NOT NetworkManager. I've had issues ...
0
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1answer
37 views

Destroyed my drivers after using my Ubuntu drive in Hyper-V (need to restore all device drivers)

Yeah I know really stupid. I suspected booting my Ubuntu 18.04 drive inside a Hyper-V VM might add some additional drivers but I didn't suspect it would remove any. Now that I have removed the drive ...
0
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1answer
991 views

Logitech MX Anywhere 2 mouse won't stay connected

If my MX Anywhere 2 bluetooth mouse isn't moved for around 5-15 seconds, it will disconnect and take 5-15 seconds to reconnect after it is physically moved. Sometimes after it reconnects an "Unknown" ...
0
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1answer
230 views

struct file object of a file

Whenever a file is created in kernel space, struct file object instantiated. Type of that file does not matter. For device nodes, standard text files etc, a struct file object is created when a file ...
1
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1answer
129 views

How to convert “sensor” names to a /sys path?

Programs such as sensor list sensors by name, such as package ID 0 and core 0. However, /etc/fancontrol uses things like /sys/device/.... How do I figure out the path from the name?
2
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2answers
105 views

is there USB support for an Agilent 33220A function generator?

I have an Agilent 33220A Function generator, it has USB and Network capability. I would like to control the device using the USB cable forgoing more complex and insecure networking options. Is there ...
3
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1answer
8k views

USB-Serial adaptor doesn't create /dev/ttyUSB path to address device

I'm using Ubuntu 18.10 x64 on my laptop and 17.10 x64 on another machine. The info below comes from the 18.10 laptop, but both have the same issue. I've attached a USB-to-Serial board (a Chinese TI ...
1
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2answers
850 views

How to change root directory from different device (e.g. /dev/sdb1 to /dev/sda2)

I have an Ubuntu when booted it has the root system is stored under /dev/sdb1, as can be shown with df command: the fdisk -l looks like this: My question is how can I change the root system from /...
2
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1answer
83 views

What does `fd01h/64769d` mean in Device and `142368` in Inode?

When I checked the state of a file: [root@iz2ze9wve43n2nyuvmsfx5z ~]# stat test.py File: ‘test.py’ Size: 33 Blocks: 8 IO Block: 4096 regular file Device: fd01h/64769d Inode:...
2
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1answer
4k views

Drivers for rx vega m GL?

I have a hp spectre with an intel® Core™ i7-8705G CPU and an AMD radeon RX Vega GL discrete graphics card. I can't for the life of me figure out how to switch to my discrete card. My system doesn't ...
2
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2answers
325 views

Create custom mount/unmount entry for nemo/nautilus “devices”

sshfs mounts are shown under "devices" in Nemo and Nautilus, together with this eject/unmount button. The eject/unmount button never works. When I go to the terminal and sshfs something into my home ...
0
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2answers
1k views

Is `/dev/shm` universal in Linux and Ubuntu?

For FIFO pipe speed I'm considering placing it inside the RAM disk called /dev/shm. I see there are some files there already: $ ll /dev/shm total 1536 drwxrwxrwt 2 root root 280 Oct 2 17:...

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