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

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32 views

Moving HD from one machine to another

About two hours ago I had a Lenovo X220 w/Evo 850 SSD containing a CentOS 7 installation on it (yes, a server distro on a laptop - I know, but I'm familiar with RHEL). Several weeks back I'd completed ...
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2answers
256 views

Enabling graphics acceleration for OpenGL over remotely via VPN from Ubuntu client(my laptop)to Windows server(computation is here)

I have an access to Internet via a Wifi. Then, I have a VPN connection established from my Ubuntu laptop to a LAN network. My Windows Machine where computation happens using OpenGL is on the same ...
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1answer
160 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 ...
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1answer
1k 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 ...
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0answers
30 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 ...
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0answers
991 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 ...
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4answers
26k 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?
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1answer
41 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 ...
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0answers
25 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 ...
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2answers
3k 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 ...
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0answers
40 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. ...
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8answers
9k 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 ...
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0answers
34 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 ...
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0answers
29 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 ...
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2answers
15k 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 ...
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8answers
10k 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: ...
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1answer
26 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?
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0answers
61 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. ...
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0answers
11 views

How and when is keyboard data encoded from keyboard to application? [duplicate]

I hope this is not the wrong place to ask this, if it is, please point me in the right direction. As the title says, how and when is keyboard data encoded? I just wanna know in basic terms the ...
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1answer
153 views

Why are the up and down arrows keys not always working on multiple platforms?

Very recently, maybe within the last two weeks this issue has started cropping up: once maybe every two days or so, the up and down arrow keys simply stop working for a while - I can move the cursor ...
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12answers
371k views

How do I find out what hard disks are in the system?

I need to know what hard disks are available, including ones that aren't mounted and possibly aren't formatted. I can't find them in dmesg or /var/log/messages (too much to scroll through). I'm hoping ...
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1answer
177 views

Problem with internal USB hub & my smartphone

I have a problem when plugging in a smartphone, as journalctl shows below: jul 19 17:28:43 newhope.belkin.home kernel: usb 1-1: new full-speed USB device number 2 using xhci_hcd jul 19 17:28:43 ...
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1answer
405 views

Fresh install Debian Jessie over existing Debian Wheezy on laptop

I am very new to Linux and any sort of communities for that matter so if I'm posting to the wrong place please let me know. I was hoping I could find a solution to my "problem". I installed Debian ...
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1answer
111 views

lsusb shows USB devices that are not connected

I have the weird issue that lsusb shows USB devices that are not connected. We have a couple of devices connected via USB. To disconnect them from the system we disable the power to the USB port with ...
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0answers
1k views

Kernel does not detect Hardware / Software or Hardware fault

I've got more of a basic question for you: My linux kernel (I tried several here from stock 2.6, 3.2 and 3.5 as well as a custom 3.7.3 one) does not detect my synaptics touchpad - or I'am too dumb ...
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0answers
99 views

Chrome with YouTube uses a lot of CPU on Asus Eee PC

Is it possible to play 480p videos smoothly on my Asus Eee PC 1025CE with LM17 onboard? I've seen discussion about this on other sites online, but nothing here. PC: Asus Eee PC 1025CE Chrome: Version ...
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1answer
54 views

Get device's bus port

How can I get a list of device bus ports? For example the parallel port is the 0x378. Is there a command to list each port and its device? On Windows it is possible looking device detail in the ...
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0answers
133 views

Ubuntu 14.04 - Multiple Griffin Technology Powermate Knobs

I am running Ubuntu 14.04, and I want to run multiple griffin powermate knobs: https://store.griffintechnology.com/powermate. I want to map them to different keys other than audio control. I want to ...
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0answers
134 views

New-installed debian system hangs on boot (probably a hardware issue, likely USB, maybe Ethernet?)

I recently migrated an entire system from Crunchbang 11 to vanilla Debian 8.1 (in the cleanest way possible --- backed it all up, blew away the old install, reinstalled the old /home and /usr/local, ...
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1answer
83 views

Switching to Linux permanently [closed]

I have searched through the forum for similar answers but I had no success in finding a satisfactory one. Windows and I had a fight last night and I decided to break up with 'it'. :)) Therefore I ...
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0answers
30 views

How verify server's hardware before install it into data center? [closed]

could anybody help to understand me how is it possible verify and validate server's hardware configuration that I'm going to install into datacenter? The problem is that the customer bought noname ...
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1answer
656 views

How to check firmware version in solaris?

I have searched in /usr/platform/sun4u/sbin path. But not sure how to get the firmware version.
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0answers
33 views

X server error due to possible hardware issue?

I am running Linux Mint 17, and have encountered an X server error that prevented the OS from booting, similar to the error described here. Typically, such an error suggests a problem with the ...
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0answers
194 views

SSD installed, but shows as HDD in command output

Strange issue here. I have a 480GB SSD drive installed in this server. I installed it myself. I see it, it's there. But, I'm getting an incorrect output on a typically used command to determine if ...
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1answer
77 views

Enable virtualization with gigabyte ud3 990fx

I'm trying to get the virtualization running : I have the following settings: Mainboard: gigabyte ud3 990fx CPU: fx-9590 Kernel: 3.11.0-12-generic Linux Mint 17 In the bios both svm as well as ...
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810 views

How to setup “Creative Sound Core 3D” on Debian Jessie correctly?

I justed installed Debian Jessie and was happy to see (or hear) that my Creative Sound Core 3D (as onboard chip on my Gigabyte GA-X99-Gaming 7 WIFI mainboard) worked out of the box when trying to play ...
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0answers
87 views

Linux Mint keyboard and mouse take a long time to work after boot

I turn my computer on, select my linux harddrive, and then I end up at the Linux mint encryption password area. I have to wait about 1 minute just for my keyboard and mouse to actually light up and ...
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2answers
95 views

why do some network cards need to load external firmware?

I have read this question/answer, but I still do not understand why some network cards work perfectly well without any additional firmware, whereas others need to load firmware to work. As a specific ...
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1answer
234 views

Set NetworkManager to ignore rfkill

My notebook does not have a hardware button to disable wireless. But NetworkManager and rfkill see wireless as hard blocked. Wicd and iwconfig works well. Is there any way to disable hard block check ...
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0answers
240 views

Wireless LED indicator issue

The question itself: is there any way to make this indicator be turned ON and OFF depending on wireless status (not just blink when there is wireless activity)? After having installed Linux, I saw ...
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2answers
69 views

Log and plot temperature-time curve over given time intervall

How can I log and plot a graph of all available hardware temperatures (CPU, SSD, etc). CPU load over a given time (say a day or a week) in linux? The CPU is i7 haswell if this matters, I have ...
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0answers
403 views

What does mt -f /dev/st0 erase do exactly on a tape drive?

What does mt -f /dev/st0 erase do exactly with a (LTO-6) tape drive at /dev/st0? It takes hours and seems to write many times. Does it write random data on the tape several times to delete the ...
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1answer
121 views

Linking two hardware serial ports

I have two micro-controllers which are connected to my computer(ubuntu 12.04) through serial-USB cables. One of the controllers (ttyUSB0) is programmed such that it sends data serially and another ...
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5answers
124 views

Prevent encrypted partition from running on other PC

Concise question: Is it possible to somehow bind partition encryption to hardware so it is impossible(very hard) to copy system to another PC and run there? Full story: We have a small embedded PC ...
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2answers
688 views

Installing an unauthorized wifi card in a Lenovo thinkpad edge 14

I took out a my Intel dual band Wireless AC 7260 card model number 7260HMW from another laptop. I wanted to install it in my thinkpad. Upon doing so and rebooting, the computer said unauthorized wifi ...
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0answers
94 views

Check for hardware damage (GPU)

I need to check for damage to my graphics card. I suspect I have done damage to my gpu through overclocking. Now, whenever I do anything graphically intensive my screen will flash various colours and ...
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3answers
2k views

How to determine bitness of hardware and OS?

Output of uname -a on my RHEL 5.4 machine is: Linux <machine name> 2.6.18-164.el5 #1 SMP Tue Aug 18 15:51:48 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux Does it mean that hardware is 64 bit ...
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0answers
30 views

Retrieve device manufacturer without sudo

I need to retrieve the manufacturer model of a linux device (laptop or desktop). I saw that you could use dmidecode | grep -A3 '^System Information' but it needs admin rights. There is any way to do ...
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1answer
2k views

List All Network Printers (including ones not installed)

It is easy to list the printers you've already installed with this command: lpstat -a However, this does not list network printers you have NOT installed. nmap will scan for all open ports on the ...
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3answers
2k views

MCE error: MCA: Internal parity error

I have an unstable machine running Ubuntu 14.04 LTS which passes 9 hours of memtest86. I get these: Hardware event. This is not a software error. MCE 0 CPU 1 BANK 0 TIME 1414735539 Fri Oct 31 ...