Questions tagged [hardware]

General questions about hardware under Linux/Unix. Use a more specific tag if applicable.

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9 views

How to create an 802.11ac wireless AP with a laptop?

Here's my setup: Hardware: Intel Wireless 7260, Driver: iwlwifi, Kernel version: 5.3.0-42-lowlatency, OS: Kubuntu 19.10 So whenever I try to create a WLAN AP using the A band, the operation fails. ...
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Debian 10 - Black screen out of nothing/Error logs MCE & firmware

I have been working on my debian system and all of a sudden my whole screen went black except for one small white bar at the top left corner. As this state lasted on for more than one hour, I ...
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Speakers connected via 3,5mm aux emit loud static for some time after boot

I have a Dell OptiPlex 3060 Micro running KDE neon 5.18 and use the Anker SoundCore Mini speaker with a 3,5 mm aux cable. After boot, the speakers emit a very loud static for about 20 minutes (± 10 ...
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Wine and DXVK overhead on hardware

I've been playing some Windows games on Linux and that got me wondering where is the most overhead using Wine & DXVK - on CPU or GPU? Which hardware suffers most from that DirectX translation and ...
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Linux can't find camera and shows up as UNCLAIMED in lshw

I'm trying to connect my external web camera (link to camera) to my computer. I use Arch Linux. when I plug it into one of my USB ports the OS doesn't seem to recognize it, all programs which depend ...
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2answers
48 views

How linux communicate with hardware around the processor?

My question is more related to Unix/Linux development rather than administration itself. I think its directed for Unix/Linux low level system programmers rather than administrators. It will help me ...
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2answers
39 views

usb stick not recognised by system

I have a Kingston USB stick that when attached to my Linux box it cannot get recognized. In fdisk -l I cannot see the drive. In dmesg it has the following: [ 236.538939] usb 2-2: new high-speed USB ...
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1answer
13 views

Understanding linux clk_core clock topology

While reading linux driver-api/clk.html documentation, I found, that struct clk_core has pointers to struct clk_core *parent; I cannot understand, why tree topology is needed? Why just array ...
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39 views

ZIP drive (parallel) on FreeBSD 12

Is there a way to spin Iomega zips (parallel to usb) on Freebsd 12 natively? Using virtualization for basic file transfer is overkill and theres not much about zip drives after FreeBSD5.x.
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How do machine-check exception (MCE) work?

I want to understand how CPU performs this Machine checks and how does it detect if any device has failed? Does the device send any machine-check exception (MCE) event which the MCE daemon catches ...
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1answer
19 views

Screen is splitting: hardware or software problem?

I've been a Mint 19 user for some months. Beginning a couple of months ago or so my screen started getting split occasionally when I turned my computer on (see pictures). This issue was solved simply ...
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1answer
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How do I access a Kindle's core files?

If I mount a Kindle (on my Ubuntu machine), it shows me various files and databases related to books, metadata, etc. But I don't see the actual OS and its files - am I seeing them and not realizing ...
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How does a linux GUI work at the lowest level?

I'm basically trying to figure out how one would go about making a GUI from absolute scratch with nothing but the linux kernel and programming in C. I am not looking to create a GUI desktop ...
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Mouse scrolling without touching the scroll button

This problem started about a week ago. If I hover my mouse over certain things (such as the different tabs of google chrome browser, or in an options window that can scroll left to right such as the ...
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18 views

dropped to emergency shell after hardware upgrade

I've put my hdd into a new hardware and my arch wouldn't startup. it shows me a message about "new-root" and that it couldn't mount UUID="xxxx". also it dropped me to an emergency shell, but I cannot ...
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High iowait under daily activities on a desktop, jbd2/sda5-8 cpu problem

Whenever i do some activity (start web browser or sometimes even just move a mouse), i get high disk activity (by sound) and iowait goes through the roof. E.g. starting chrome or firefox freezes mouse....
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85 views

How can I notify a program of a hardware event?

I am looking to write a program that waits indefinitely for an event, in this case, for USB/s to be plugged in and to do some after action that. I intend to write it in C or Python. The question is, ...
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1answer
159 views

How to find hardware/chipset name using terminal in Linux

How reliably check the chipset of a machine? I tried to use "lspci" "hwinfo" "lshw" "dmidecode" commands on my old Asus K50ij with linux mint, but the output does not provide precise enough ...
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1answer
37 views

Print the system memory structure

My system hosts 8 GB of RAM and 2 GB of VRAM. It runs Ubuntu 18.04 with kernel 4.15.0-74-generic x86_64. IIUC, these two types of memory, in addition to the BIOS read-only memory, are mapped into ...
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3answers
112 views

How to check status of hardware components in linux?

I know commands like lshw, dmidecode but all they do is list the detected hardware attributes right? I can get all the information I want about the hardware in my computer. But I would also like to ...
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1answer
283 views

Segfault in Google Chrome - is it Nvidia card related? How do I find out?

System Linux Mint 19.3 Cinnamon 64-bit, based on Ubuntu 18.04 LTS. Related Hardware GPU: NVIDIA, GeForce GTX 1060, Max-Q Design, 6 GB VRAM CPU: Intel Core i7-7700HQ Could anyone tell me if the ...
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1answer
69 views

How to instant shutdown or halt in linux, without wait the system or apps or process close?

I'm working in a custom linux distro, that automatically saves any file or write the hard drive to prevent losing data, Ok i need to shutdown the computer without wait close apps or close system, ...
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19 views

Enabling multicore causes corrupted files

I am running the latest Manjaro with Cinnamon on a Thinkpad X1 Extreme 20QVCTO1WW. The CPU is an Intel i5-9300H. I currently have multicore disabled in the BIOS but hyperthreading enabled, so lscpu ...
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38 views

How do I prevent the LED lights from pulsing on a B450 Tomahawk Max?

I have a B450 Tomahawk Max running Ubuntu, and I downloaded this program to control the built-in LED lights. When I try to display solid color, it pulses on and off. For example, sudo ./target/...
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How to disable touchpad button click

Running latest Fedora. Found lots of answers on how to disable the touchpad while typing, but it's not what I'm looking for as I only want to disable the touchpad clicking (not the tap click, the ...
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1answer
82 views

Problems with hardware clock on my ThinkPad T420 after flashing Coreboot

After flashing coreboot I get the wrong date on my linux install. # date Mon 21 Mar 2089 04:03:42 AM UTC And when I try to read the date with hwclock I get this error # hwclock -r hwclock: ioctl(...
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Old WDC hard drive WD2500YS geometry data needed

I have to replace a defective drive in a RAID. This is quite an old Western Digital Corporation drive and I don't know its geometry and even the exact size. I know that it is generally 250GB drive and ...
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256 views

Multiple M.2 NVMe SSDs on single slot using PCIe bifurcation: Set this up from Linux when BIOS does not?

I'd like to use a multi-M.2 NVMe PCIe carrier card like an Asus Hyper M.2 x16 Card v2 in an HP Z240 tower workstation. Its C236 PCH and Skylake E3-1200V5 CPU support PCIe bifurcation of the x16 PCIe ...
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1answer
143 views

How to measure CPU voltage on a 570 motherboard with lm_sensors?

I am trying, and failing, to determine my CPU's Vcore voltage. My CPU is a Ryzen 3700X in an ASRock 570M Pro motherboard, using Arch Linux (fully updated). I downloaded the lm_sensors package, ran ...
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145 views

Does Debian kernel supports hwe?

So recently faced some issues, that HW transcoding is not working on Debian 9.11. Having E3-1275v6, that has iGPU. I know, that for Ubuntu, there is a 'special' kernel that needs to be installed(...
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120 views

Can't Connect HDMI Port in Fedora 30

I'm currently running Fedora 30 on my 2014 Macbook Pro, trying to connect an external monitor via the HDMI port with no success. I run xrandr -q and get the following output: xrandr: Failed to get ...
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3answers
70 views

How to get the serial number of the pen drive in bash

cat /proc/scsi/usb-storage/27 ------------------ Host scsi27: usb-storage Vendor: SanDisk Product: Cruzer Blade Serial Number: 4C530000230331109030 Protocol: Transparent SCSI ...
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4answers
175 views

How can I tell how old a computer is?

I am looking to buy a used pc. I was wondering if it's possible to know how old the PC exactly is since the word of the dealer can't be trusted... I'll boot Linux from USB on the pc. Is there a way ...
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1answer
33 views

Is there a way to figure out if a touchpad is broken, even if it's unsupported by Linux?

(I asked another question here that led to this question. I'm going to repost some of the command line output that I think is relevant.) I found an old laptop in my garage (Lenovo IdeaPad U260) and ...
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436 views

ata2: COMRESET FAILED (errno=-16) with new SSD

I have an Asus K53s laptop with one dual boot SSD (240gb total: 200gb Windows7 + 40 gb Debian 9). I've been working lately with a big Postgres DB, so I've been running out of space in my Debian ...
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2answers
48 views

Smartctl utility giving uncorrectable and unreadable sectors error on HDD

I keep receiving mails from smartctl related to unreadable and uncorrectable sectors (these are the two errors that I get: Device: /dev/sdb [SAT], 209 Currently unreadable (pending) sectors Device: /...
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2answers
507 views

“Calgary: Unable to locate Rio Grande table in EBDA” <- what does this mean?

When I boot my system, I get the following message: [Sat Oct 26 20:34:25 2019] Calgary: detecting Calgary via BIOS EBDA area [Sat Oct 26 20:34:25 2019] Calgary: Unable to locate Rio Grande table in ...
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25 views

No live boot from usb and restarting with a blinking white underscore in Ubuntu [HP Laptop] , Not taking any command?

My PC suddenly stopped responding after reboot. I tried using a bootable USB but nothing is appearing. I tried removing the battery too. Is this a hardware issue or my Ubuntu image is encrypted? A ...
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1answer
30 views

Should booting the same Live OS behave the exact same way on the same machine?

If I were to run a Live OS from a read-only DVD onto a computer with any given specifications, should I expect the system to boot with the + startup time + RAM usage + CPU usage every boot, ...
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180 views

Linux Mint 19.2, Dell XPS 15 9560, and the TB16 Dock's USB ports?

I bought this dock a week or so ago and have been trying to fix a few minor annoyances with it ever since. If my laptop is turned off, I plug in the USB-C cable from the dock, and I boot the laptop, ...
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168 views

SD card reader not detected by Linux kernel 5.3

My laptop's SD card reader is recognized by Linux (OpenSUSE Tumbleweed) as "RTS525A PCI Express Card Reader", yet it is not visible by the system when I insert an SD card (tried it with SD cards of ...
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39 views

How to get hardware info from a client remotely

Before i say anything i want to inform you that: My Programming skills are 0 My Linux knowledge is very basic I am trying to find a way to get hardware information remotely and store them in my linux ...
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0answers
113 views

OS confusing eMMC device for SD card device - how to fix using udev

Busybox Linux running on an ARM Cortex A7 processor from NXP. The board has an SD card slot and also an eMMC chip that can be used for storage. The device is booting from nor flash. Strangely, when ...
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29 views

FreeBSD 11 not recognising changes to connected devices when MTP device attached to USB. Phone, cable, and USB socket all work

When I connect my phone via USB (USB type C to A cable) to my FreeBSD 11.2 setup, nothing happens. No console messages, nothing in camcontrol devlist, dmesg, or usbconfig AFAICS. (I could be missing ...
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1answer
34 views

How can I tell if a given Linux system has GPGPU capabilities?

I am using a remote virtual machine (administered by my company), running Red Hat Linux, to do some fairly heavy Engineering number-crunching type work, using the commercial analysis software package ...
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1answer
3k views

Got “input output error” when execute any commands

Last Monday morning, I found my server can't run any command, and it shouws "input output error". With tried for half an hour, I found the only command can executed is sudo poweroff -f (must use flag -...
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18 views

Ubuntu download and upload speed drasitcally drop after a few hours

I have a strange issue. My computer is using gigabit connection and after booting, the download and upload speeds are very good (download: 800 Mbit/s, upload 600 Mbit/s). After a few hours, it ...
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1answer
404 views

How to see PCIe device info on FreeBSD?

I know about pciconf but this does not give enough information. Is there an equivalent to lspci -vv in FreeBSD? I want to know the negotiated link speed, serial number and other vital product data, ...
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40 views

Harware disk formatting under Linux

For fun, I'd like to "revive" a vintage computer, but this requires to hardware reformat a PATA disk. I found on the net the formatting utility from the vendor but it works only under Windows and I ...
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1answer
589 views

LXC: Cgroups, hardware passthrough, explain in english please?

I've got sort of a niche use case (not "production", it's a lab environment for a classroom) where I am using LXC containers on a Proxmox VE machine to run GNS3 Server and KVM virtualization. To make ...

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