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

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8
votes
5answers
4k 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: ...
1
vote
2answers
53 views

Varing speed when reading sequentially from a HDD

I have just got a new HDD and I wanted to test the sequential read speed (the whole disk). I used: pv /dev/sda > /dev/null The disk is 500GB WD VelociRaptor (WD5000HHTZ). At the beginning the ...
3
votes
1answer
59 views

Using Bash to write to a device in /sys?

I have one of these: Basically, it's a USB device with three LEDs (red, green, and blue). The Linux kernel has supported this device through the usbled module for quite some time now. However, I ...
1
vote
1answer
122 views

Disable hardware ad-hoc

I am running Parted Magic doing some data recovery, that I am finding myself concurrently using for some other minor tasks also. Problem being, typing is a nightmare, as the trackpad is enabled (No ...
2
votes
2answers
1k views

Can't Get Synaptics Touchpad Disabled

The touchpad comes back to life after a few seconds. The Windows driver had a disable-entirely option. I do not want to use the touchpad at all, so anything up to and including a hardware fix is now ...
2
votes
3answers
212 views

The only way to turn off/on wifi is to put laptop into sleep mode

After start GNOME prints Hardware disabled. I've tried to use keyboard shortcut and it doesn't work. Only way to disable/enable hardware wifi is to put laptop into sleep mode and restore.
10
votes
3answers
2k views

Detecting headphone connection/disconnection in Linux

I am trying to detect a signal when a headphone is connected or disconnected from the system. What is the best way to do this? If there is a special board with drivers, that will be my preferred ...
3
votes
2answers
117 views

How to harden linux against DMA attacks?

How can I configure my linux system to be secure against DMA-attacks? Is there a way to make them impossible? DMA Attacks excerpt From wikipedia In modern operating systems, non-system (i.e. ...
1
vote
2answers
107 views

KDE becomes slow

I experience problems with KDE 4.11.1 on Arch Linux. It suddenly becomes laggy and unresponsive and just as suddenly returns to the normal state after some time. Normal CPU load (KSysGuard): ...
0
votes
1answer
749 views

Linux fan control?

For some unknown reason, my laptop fan stays on consistently. Even when I'm using less than 2% CPU and the air coming out of the vent is seemingly cooler than the air in the room, the fan always stays ...
2
votes
1answer
203 views

Is there any tool to view live statistics about a Radeon GPU?

I've checked out GPU usage monitoring (CUDA), but are there similar tools for AMD/ATI cards? Or kind of universal tools? I want to check out if my applications use the 256 MB of RAM of the video card ...
10
votes
1answer
4k views

How do you use badblocks?

I can never remember the specific incantations for using badblocks, and apparently google isn't much help either. Yes I could read the man page but I remember it's like 4 options I have to use to get ...
4
votes
1answer
120 views

Cleanest way to use a smartphone as a conventional linux workstation

I have a GT-S5830 Samsung smartphone with Android 2.xxx, that I am not using as a phone. It would be nice if the device could be used as a wifi repeater. Unfortunately, this is impossible or not ...
3
votes
1answer
418 views

Does segfaults mean bad memory

This is a brand new server with a new install and fresh compile of Apache/PHP with nothing crazy. Just a WordPress site hosted and I get the following. Could this just mean bad RAM? If so how can I ...
1
vote
0answers
434 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
0answers
89 views

USB Modem connection problem

I am using Linux (CentOS 6.x) for the last three or four months. There are Dual OS in my PC (Windows 7 and centOS 6.x). I am using Airtel USB Dongle for Internet connection. Now the problem is that ...
9
votes
7answers
3k 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
1answer
408 views

Best way to encrypt my system on an ssd

I consider to buy an ssd for my laptop (something like Samsung 830 or 840) to make the system more responsive. I want my system (at least my home partition) to be encrypted. However I know about ...
0
votes
1answer
268 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
5answers
4k views

Low Cost, 2 Ethernet Ports & Runs Linux [closed]

Looking for an inexpensive embedded device that contains 2 Ethernet Ports, runs Linux (or some other type of Unix), and is under $50. My main concern is cost. It must be under $50 and have 2 Ethernet ...
0
votes
0answers
140 views

Wifi-Hardware seems not to be enabled

in my MSI Wind-Box DC 110 I have this Wifi Chip: RTL8188CE (says the sticker on the chassis and the vendor told me that they are sure the device is implemented) and I cannot connect to any Wifi - ...
1
vote
0answers
80 views

No microphone input - VIZIO CT15-A5 and 12.04 LTS (64)

I have the VIZIO CT15-A5 and 12.04 LTS (64) is running smoothly .. Only one issue.. I cannot record sound or use Skype due to lack of mic input. I have tried turning up the sound using the alsa ...
0
votes
1answer
305 views

Find driver (which is not automatically installed) for a specific hardware

Is there some general way to find out the name of the driver which I have to install on my linux system given only the hardware name? Maybe some centralized webpage or application which gatters all ...
1
vote
0answers
68 views

Diagnoising a hardware issue on linux

I have a laptop that completly turns its self off after an unpredictable amount of time. It also doesn't allow for its self to turn it back on after a period of time. To me this sounds like an issue ...
2
votes
1answer
1k views

How To Diagnose Faulty (onboard) Network Adapter

I'm looking for advice on diagnosing ethernet connectivity issues under Linux. I suspect it's a hardware issue, though I am not entirely sure. It's an nVidia chipset and ethernet adapter. The device ...
0
votes
1answer
151 views

Why there are so many problems with the overheating and fan speed when installing Linux? [closed]

I don't understand it. Almost every 10th or 20th question is about fan or overheating or that the fan is too loud and the speed too big etc. And these questions are not only about laptops but often ...
1
vote
1answer
69 views

Need list of HDD devices excluding my os HDD

I want list out whole HDD device excluding my os running device attached to my system. I did lot's of googling and fired many more commands in command line of linux. but can't gating proper output. ...
4
votes
1answer
116 views

How are drivers for peripheral hardware installed in Linux?

I have acquired a new wireless keyboard, and I've tested it out on both a Windows and a Linux box. It worked on both, but with an initial difference - Windows took a minute or two, to look up the ...
1
vote
0answers
212 views

backlight doesn't work with Linux Mint 14 on my Gateway NV78 laptop

Here is my problem it is Bug 765438--the backlight will not work on my Gateway NV 78 laptop. Won't work with Linux Mint 14, ubuntu from ubuntu 11.04 onward won't work with ps-bcd. Of course it ...
8
votes
2answers
546 views

Any relatively new binary distro causes kernel panics

I'm having trouble using any relatively new binary distro on this machine. The last binary distro to work without issue was Ubuntu 8.04. I'm currently using Gentoo with the latest 3.2.1 kernel and ...
2
votes
2answers
576 views

Getting input from a USB device listed with lsusb

I have a CF-1KB barcode reader connected to an RS232 to PS/2 adaptor and a PS/2 to USB adaptor. I'm not sure how the device works so I'm trying to figure it out by looking at what information I'm ...
1
vote
4answers
283 views

Solaris: Script for finding the physical device path of all installed fiber cards

I have a number of systems (with quite varying type, generation and architecture unfortunately). I need to create a list of fiber cards on these varying systems. I am able to use prtconf -v, and ...
4
votes
1answer
2k views

Setting CPU frequency guidelines

I'm changing my CPU frequency because of noisy fan. I used sudo cpufreq-selector -g powersave for this purpose, but I replaced my Linux system Xubuntu with Lubuntu because it utilizes better ...
1
vote
0answers
242 views

USB ports not working

Ok, got a Puppy Linux Wary 5.3. running on an old laptop with USB ports. Now, here's the strange part ... none of them work. When I stick in a USB-stick there's no reaction. Still, lsusb lists ...
2
votes
1answer
281 views

Writing triggers for mcelog

Just starting to look into mcelog for the first time (I've enabled it and seen syslog output before, but this is the first time I'm trying to do something non-default). I'm looking for information on ...
7
votes
5answers
440 views

Can I see what HDD I have installed? [duplicate]

I use lspci for pci devices and lsusb to list the usb hardware devices, is there something similar to list my SATA HDD model ?
1
vote
4answers
1k views

How can I find the hardware model in Linux?

I used a system information utility to take the model number of a system, and also of the motherboard. DMI System Manufacturer LENOVO DMI System Product 2306CTO DMI System Version ...
0
votes
1answer
3k 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 ...
6
votes
1answer
375 views

Linux kernel 2.6 on ARM

I have compiled and installed the 2.6 kernel on an ARM board. I am using the ARM mini2440 board. I would like to know if there is already a way to access the General Purpose I/O port pins? Or will ...
1
vote
1answer
225 views

Installing Linux on an Android netbook

Is it possible to boot Puppy Linux using an USB stick on a netbook running Android, specifically this one: http://amzn.to/VSEJTf? Is the right kind of BIOS in place that it can boot from USB?
6
votes
3answers
856 views

Linux-compatible 56k modem

I have a client who wants to set up a fax server in their office. I'd like to use HylaFAX under Ubuntu, but I'm a little shy to spend money on hardware for Linux, particularly a modem given the whole ...
1
vote
1answer
65 views

Laptop camera. How to get detailed information about it?

My Samsung laptop has a built-in camera. The camera works fine. I want to get detailed information on it, at the very least model and communication bus. The output of lsusb, lspci, lshw, ls /dev do ...
2
votes
3answers
1k views

Human readable system memory reading crom CLI?

On OS X, I get a nice human readable system memory reading like so: printf -v system_memory \ "$(system_profiler SPHardwareDataType \ | awk -F ': ' '/^ +Memory: /{print $2}')" ...
2
votes
4answers
447 views

Hardware and software inventorying

Objective Collect hardware and software information from lab computers, respecting students' privacy. Type of information to collect Examples: System memory Bash verion JVM version Operating ...
0
votes
0answers
44 views

How to find out whether a certain processor is 64bit or 32bit? [duplicate]

Now, the answer that jumps into everyone's minds at this point is, of course, uname -a. But I believe that, in this case, it is not the correct answer. Why? Well, I have installed a 64bit version of ...
4
votes
1answer
995 views

How to monitor RAM ECC errors on Ivy Bridge Xeon E3 processor in Linux?

How can I monitor if there are any errors in RAM that get corrected by ECC? The processor is an Intel Xeon (Ivy Bridge) processor, the operating system is Scientific Linux 6.3. On a previous system I ...
0
votes
2answers
83 views

Obtaining the staus of all input/output ports connnected to system

What's the command to list the all I/O ports connected to system? Also, how do I get the status of all individual ports? For example: printer How do I determine whether a printer is ready to print ...
6
votes
1answer
639 views

Get monitor make and model and other info in human readable form

I have extracted the shorthand version of the current monitor attached to the computer. Here is an example: vendor "VSC", prod id "18500" In Ubuntu's Monitor Preferences, it is identified as ...
2
votes
1answer
2k views

Hotplug area too small error

I have VM running under RHEL6, which is running under HyperV. It has a lot of important soft installed, but does not have suffocating workload (~10% CPU is used). It's been really unstable recently ...
3
votes
3answers
116 views

How to use a “hardware key” to control Linux networking

Sometimes I have trouble controlling myself while in front of the computer and I tend to procrastinate a lot doing Internet surfing. Fortunately I do not need Internet for most of my work. So I would ...