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

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0
votes
1answer
32 views

Installing Linux as the primary OS on HP Pavilion DV-7-1225-ez

I have an old entertainment laptop, HP Pavilion DV7-1225ez, which I would like to turn into a portable development/learning computer. I am now going through various linux distros to find the most ...
0
votes
0answers
10 views

How can I find the module responsible for interaction with keyboard [duplicate]

I have a laptop and want to be able to turn off keyboard for a while. I use this code: modprobe -r usbhid sleep 10 modprobe usbhid But as my keyboard is not usb, and it only blocks mouse. How can I ...
0
votes
0answers
93 views

Force Broadcom bluetooth to see wlan0 in down state

I`m running a 64bit Arch Linux on an old Dell Laptop. The wireless hardware, unfortunately, is from Broadcom (BCM4312 LP-PHY for wifi and BCM2046B1 for bluetooth). A Lenovo bluetooth mouse works and ...
1
vote
0answers
60 views

Storage device trouble: IO errors but no bad sectors?

I have a lightly used spinning metal drive (internal) with some VMs on it. I'm running into IO errors while running a VM and upon closer examination I have found a virtual disk file that is reporting ...
0
votes
0answers
27 views

Is it safe to retask other audio ports as lineins using Jack?

So, I wanted to setup my Linux PC to record multiple line in audio devices without putting holes in my wallet. Then I found a tool called hdajackretask which lets me convert any port into any other ...
1
vote
1answer
43 views

Is host-to-host file transfer possible using USB Type-C?

I'm doing a warranty replacement on my Chromebook Pixel 2, and want to transfer data from one laptop to another. The Pixel 2 has two USB type-C ports. I'm running Arch Linux on the old one. I'd like ...
3
votes
2answers
32 views

Installing Linux on hard disk that will be used by another computer with different hardware

I was given a laptop with a totally dead display. I do not want to pay to replace the broken display, but I would like to use the laptop as a server and connect to it via SSH to control it. I have ...
1
vote
1answer
770 views

Random system Freezes on two different machines in the same room

I am at my wits end and looking for suggestions. I have been encountering a problem with 2 desktop workstations in my home office. This problem began on an old dell machine, and when I finally gave up ...
1
vote
0answers
45 views

Change which brightness device gnome uses?

I am using a lenovo thinkpad w520 running fedora 22 and gnome 3. This particular laptop has both an integrated (Intel HD Graphics 3000) and discrete graphics (NVIDIA Quadro 1000M) card. When I'm in ...
3
votes
1answer
56 views

How to distinguish between v2 and v3 of Xeon processors?

I'm trying to determine what processor my server is running. I tried looking at /proc/cpuinfo, using lshw and dmidecode. In all of them I get: Intel(R) Xeon(R) CPU E31220 @ 3.10GHz How do I ...
2
votes
0answers
25 views

lshw HWPath priority — how to determine

I have a project here at work where I'm attempting to definitively map ethernet MAC addresses to physical ports (IE card 1 port 0 is eth0 (mac xx:xx:xx:xx:xx:xx) and a non-technical operator can look ...
1
vote
1answer
150 views

Hardware error in syslog after gaming

Sometimes when I'm playing a game I'll get the following message from syslogd: [16789.554414] [Hardware Error]: Corrected error, no action required. [16789.554418] [Hardware Error]: CPU:0 (15:2:0) ...
1
vote
1answer
131 views

xhci_hcp module constantly detecting devices

Problem I want to start getting into GPGPU work, so I got an ASUS Rampage IV Black Edition gaming motherboard. I thought it would support multiple GPUs well. However, I have had nothing but trouble ...
2
votes
0answers
95 views

Find a IR transmitter device

I would like to use the IR transmitter included in a cubox. I did not found any documentation to use it, so I would want to learn how to communicate with periphericals on linux. Commands like lshw,...
0
votes
0answers
181 views

SD Card not recognized

I have 2 laptops with Linux Mint 17.2 installed. One recognized SD card without any configuration. Other recognized SD card, but don't read this content. This message appears in GParted: Can't ...
1
vote
1answer
41 views

Key is not being released on very short keypresses

On my keyboard, when I press a key very lightly and release it quickly (talking about probably 0.1s of button press here), the key does not issue a release event correctly and instead typed repeatedly ...
1
vote
1answer
222 views

generate consistent machine unique ID in c programming

Is it possible to generate a unique ID that wouldn't change over time unless there is hardware changes. The hardware must be generated with a c program. That also would be great if it were robust to ...
2
votes
1answer
2k views

Should I install the AMD/Intel microcode packages when running Debian?

Should I install the AMD/Intel microcode packages when running Debian? What exactly do they do, and when should/shouldn't I install them? Why are they in non-free?
2
votes
1answer
235 views

searching for hardware via lspci

I just bought Lenovo ThinkPad X201 t. I have installed Debian Jessie (testing). I was able to make working all of its hardware, but with one exception. And that is mobile broadband modem. I have ...
1
vote
1answer
493 views

Ubuntu 14.04 built in webcam not being detected

Hello I am running Ubuntu 14.04 and my webcam is not recognized. It used to work fine but recently it is not working. I got my screen replaced by dell and also the motherboard and heatsinks for a ...
11
votes
5answers
15k views

generate consistent machine unique ID

Can we generate a unique id for each PC, something like uuuidgen, but it will never change unless there are hardware changes? I was thinking about merging CPUID and MACADDR and hash them to generate ...
2
votes
1answer
30 views

Clocks, Hardware, and Booting

A few days ago, I was having some difficulty booting my Mint 17.2 installation. Essentially, after boot my screen would go black, and I would not be able to do anything - even after some time, the GUI ...
0
votes
0answers
27 views

How to broadcast voice from USB microphone to apache?

I have a webcam and a microphone. I wan't to send both, sound and video to my index.php so i can see the video from the camera and hear the sound from the microphone. I already managed to stream the ...
23
votes
6answers
38k views

Harddisk serial number from terminal?

I have multiple harddisks which get connected to my server and I'm not sure which one is what in the view of sdXY . If I can see the serial numbers of my harddisks from terminal, I can easily identify ...
1
vote
1answer
3k views

My laptop shuts down every time I unplug it

I am using a Lenovo G580 with Linux Mint 14 updated. My laptop shuts off every time I unplug it as if there is no battery even when I am using the BIOS. But, It detects the battery as "84% charging" ...
3
votes
1answer
1k views

Debian Sid, AMD RS880 [Radeon HD 4250], black screen on boot

My computer booted under Debian Wheezy (3.2 kernel) with no graphics problems whatsoever. After updating to sid (3.10 kernel), the screen goes black (that is, the display flashes a bit and then goes ...
0
votes
1answer
35 views

how to find out how much power my external hard drive is using?

I want to monitor the power usage when plugged into my laptop (specifically voltage and current) of my hard drive during various activities. How do I find out if I am on Linux? (right now I am using ...
1
vote
1answer
97 views

What is /proc/dma? Is it just for legacy support?

I reading a Linux book that told me I can check the dma channels by reading /proc/dma. This is what I see when I run cat /proc/dma: 2: floppy 4: cascade I'm confused because that looks like old ...
8
votes
1answer
10k views

How to verify if hardware acceleration is enabled?

How can I verify whether hardware acceleration is available and whether it is enabled for my video card.
6
votes
2answers
2k views

Support for usb 3.0?

I could not seem to find the question here but I was wondering what experience if any users have had with USB 3.0? My asus p5x58d has usb 3 on it but I have yet to try it out and also do not know ...
18
votes
4answers
23k views

How to check which GPU is active

I have 2 GPU's in my netbook. How do I know which one I'm actually using at any given moment?
2
votes
2answers
87 views

laptop with bad monitor turned into server: how to disable monitor

I have a laptop with an absolutly useless monitor (well, probably video card), so I put an Ubuntu 14.04 server on it. Of course if I turn it on, the monitor still turns on and blinks in vivid colors, ...
50
votes
7answers
10k views

Can a laptop battery explode while using Linux?

I have a 2013 Retina MacBook Pro, and I really want to install Debian on it. I have the know-how and have had at least three Debian systems before this. I am very knowledgable with the command-line ...
2
votes
2answers
45 views

Network acting crazy… How can I know whether it's hardware?

I have a homeserver, with a built-in network card, ASRock E350M1 Motherboard. On the computer there's a Debian Jessie system on an SSD, and 4 HDDs in raid configuration for my data. I usually have ...
2
votes
1answer
293 views

How can two identical virtual addresses point to different physical addresses?

Following a fork() call in Linux, two processes (one being a child of the other) will share allocated heap memory. These allocated pages are marked COW (copy-on-write) and will remain shared until ...
1
vote
1answer
2k views

Intel 6300 wireless card won't work on CentOS 7 - worked during install though!

I installed centos 7 on a laptop with an intel 6300 wireless card in it. During the install, the wireless card was available and I was able to connect to my lan. After the install, I don't see the ...
1
vote
0answers
51 views

A/D pins always read max (1023)

I am using the Aria G25 board from Acme Systems. I have their Terra board breakout. I have also asked this question on their google groups but thought it might be a more general issue so have posted ...
1
vote
0answers
2k views

What is the difference between I2C and PS2 mode?

On my Dell XPS 13 9343 my touchpad can work with I2C bus or in PS2 mode. What is the difference between those two modes ? Why are they both available ? The output of xinput is : Virtual core ...
40
votes
4answers
33k views

How to Determine the Amount of RAM Slots In Use?

I forgot how many RAM modules are installed on my laptop. I do not want to unscrew it but want to look it up on the console using bash. How do I gather this information?
0
votes
1answer
51 views

Hardware specs for Linux machine for cluster administration [closed]

I have just started as cluster system administrator and was asked to choose some features to get bought a personal machine to work on, and most intensive calculations will be perform in the cluster. I ...
0
votes
0answers
31 views

Server hardware errors?

I have a large data server running ZFS-on-Linux under Debian 6.0.10, which has been running stably for several years. In the last two weeks, however, it's been crashing every few days and throwing ...
3
votes
2answers
4k views

How can I get the Bluetooth working on my Lenovo Yoga 3?

I have a Lenovo Yoga 3 that apparently has a new Broadcom Bluetooth device. The bluetooth is detected at boot and when I try to pair a something in gnome, I can see a list of devices but none of them ...
0
votes
0answers
71 views

PCI Device Missing After Reboot

I have a DVBSky T9580 PCI tuner card. My problem is that after rebooting,, the device dissapears, lspci does not list it any more. I tried rebooting with reboot command as well as shutdown -r 0. ...
12
votes
8answers
11k views

How to flash firmware under Linux in practice?

Well, I am feeling too old for jumping through several burning hoops to upgrade several firmwares via the usual vendor-specific way: Download some DOS tools, waste some time creating a (Free-)DOS boot ...
2
votes
0answers
36 views

Random pieces of ancient hardware not working together (Mac G5, Sun network adapter)

This is probably some kind of weird esoteric hardware combination but it's not why I did it. It's just what I had lying around. I have a 2x 2ghz Mac G5 and I can't really bring myself to part with it ...
1
vote
0answers
30 views

External monitor script has become unreliable

I have been using the following udev rule and bash script to automatically configure my external monitor for some time now, however recently the script has become unreliable, usually doing the ...
4
votes
2answers
17k views

Missing “version.h” when installing fglrx

I have downloaded the fglrx driver installer from the ATI drivers page. when I start the installation, everything goes smoothly until I hit an error message, telling me to check /usr/share/ati/fglrx-...
12
votes
8answers
11k views

How to know if /dev/sdX is a connected USB or HDD?

How can I know if /dev/sdX is a local HDD or usb key ? best doing this without root privileges. OK , udevadm helped a lot: For local HDD: udevadm info --query=all --name=sdb | grep ID_BUS E: ID_BUS=...
0
votes
1answer
31 views

Use NVIDIA graphic card as regular resource

I don't use my graphic card anymore, but it is still laying there, idle. Is there a way I can turn it back on and use it just a regular, additional CPU/RAM for my laptop?
1
vote
0answers
65 views

How to get the Adaptec 1200A to work under Linux at UDMA/100 (instead of 66)

A while ago, I got myself a used Adaptec 1200A controller card to keep my onboard slots free for easier connect/disconnect of drives and now I am wondering why this card will only operate at UDMA 66. ...