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

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2
votes
0answers
260 views

Physical Terminal (DEC VT220) issues with ZSH

I recently purchased a VT220 and all the hardware necessary to hook it to my macbook pro. After several hours of fiddling I got it working with a shell - my only problem is my shell of choice, ZSH, ...
2
votes
1answer
578 views

azap from LinuxTV dvb-apps strange signal behavior with Hauppauge WinTV-HVR 950Q

What I want to do I have a Hauppauge WinTV-HVR 950Q USB-TV-Stick. I want to use this stick to successively tune to and read in a certain live TV stream. What I do I trigger a scan and save the scan ...
3
votes
1answer
855 views

ACPI conflicts with ACPI region SMRG

During startup, I noticed some error. I found this in dmesg: i801_smbus 0000:00:1f.3: PCI INT B -> GSI 21 (level, low) -> IRQ 21 ACPI: I/O resource 0000:00:1f.3 [0x400-0x41f] conflicts with ...
0
votes
2answers
271 views

Sony runs which operating system? Oracle Linux or Crestron Extron or Minix or OS X?

Sony has TV, PlayStation, Camera random hardware's. Where many of those have GUI available too. I want to run my BASH script there with ncurses. But how do they drive there devices? Which operating ...
1
vote
1answer
230 views

Which driver for USB enclosure should I install?

I'd like to connect my old harddrive to my laptop via USB enclosure. I connected it but it only produced strange sounds, so I thought that the enclosure is corrupted. I connected the enclosure to ...
2
votes
2answers
136 views

Does brand/hardware limit the distributions that are safe to run?

I recently tried running Fedora 16 on my laptop and had problems with the fan. In particular, the fan would start, run at full power, and never turn off. I spent a few hours online looking for ...
1
vote
1answer
112 views

Why FOSS 3d performs so badly, compared to proprietary. Trying to understand

I know this is not the best question, I'm just trying to understand what needs improvement. I just read a Phoronix article, which compared the FOSS radeon drivers a 5 years old FGLRX catalyst. As ...
8
votes
2answers
560 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 ...
1
vote
2answers
366 views

Autodetect modem in Linux?

Is there a way to autodetect modem devices in Linux and then symlink them to /dev/modem using a udev rule? Currently, I wrote a program that probes each serial port, sending AT and waiting for OK. I ...
2
votes
3answers
5k views

How do I display the name of my audio card driver from the command line in Lubuntu 11.10?

I am running Lubuntu 11.10 and I want to display my Audio / Sound Card Driver from the command line.
1
vote
3answers
1k views

System freezes when browsing internet

About a week ago my system began to freeze (deadlock, only manual shutdown with laptop button helped) from time to time. The frequency of deadlock is increasing. Today it was about 10 deadlocks with ...
3
votes
2answers
359 views

How to identify if there is some power saving setting that powered down a processor in Linux

I have a linux server that apparently has two Intel Xeon X5670. /proc/cpuinfo shows 12 CPUs but dmidecode shows only one CPU and the other one is in the Unpopulated status like it is showing that ...
2
votes
1answer
1k views

Disable detection of certain hardware?

I have a computer with two PCI TV cards. One is Compro (Win friendly), another is Leadtek (Linux friendly). Now, I'm trying to optimize my Ubuntu boot process and I would like to disable detection of ...
2
votes
2answers
545 views

How to troubleshoot a computer freeze from liveCD?

I'm helping my dad fixing his old computer. I am now running it from Fedora 16 with XFCE Live CD. If I try to install, as soon as it gets to the part where it writes partition to disk however, the ...
2
votes
0answers
195 views

Music Server for WLAN-Speakers

There are several systems with WLAN-Speakers for sale. Most of them consist of several Boxes with WLAN-Recievers and a WLAN-Router/Storage-Device to spread the sound information. The WLAN-Speakers ...
0
votes
1answer
95 views

Buying a Linux Machine [closed]

As a budding dev, I'm looking to buy a linux machine to work with. What are my options in buying a machine that comes installed with linux? EDIT: I guess my question really was, is there such a thing ...
3
votes
1answer
543 views

Hardware code(s) from “sensors” command

When running the sensors command in the terminal, the output contains what appears to be some sort of unique identifier for each piece of hardware listed. This is the output, as you can see below, for ...
2
votes
2answers
351 views

What tool(s) should I use to test my hardware for errors?

Are there any Linux tools (command line, or Live CD) that will test hardware components for errors (hard drive, RAM, CPU, graphics card, buses) and show me some detailed output with wrong parts etc.?
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 ...
6
votes
1answer
225 views

Detecting computer models , e.g the vendor

How can I detect the model of a computer, like Leveno or Sony? Is there any program can do this, for both PC & Laptop? (I just want to load a specific driver when the target model is detected.) ...
10
votes
4answers
3k 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 ...
2
votes
2answers
878 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 ...
4
votes
5answers
640 views

What can I use that is small, has linux, an ethernet port, and a hard drive?

I see that David Braben has created a $25 USB stick that can run linux. Check out the website at http://www.raspberrypi.org/ That's not available yet - so what's a low power *nix device that I can ...
2
votes
2answers
629 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 ...
3
votes
2answers
200 views

Can lvm2 volumes based on device names like sda, sdb etc be mounted if their names change?

Lets say I would like to make a large volume from external usb drives. I create the lvm volume on drives that have been given certain device names sdf sdg or whatever and at some point they are ...
3
votes
2answers
119 views

Reference material about device management

Can anybody recommend materials about device management in the Linux environment? From the point where I insert a cdrom or usb device to the point where it is mounted in /media/somedir. I know that I ...
1
vote
2answers
143 views

Things to consider when buying a desktop to use dual screens in linux

I'm about to buy a new desktop. I would like to be able to use two monitors. I am not sure what features will be most important here. I will probably run Ubunbtu, although I haven't decided (I might ...
2
votes
1answer
112 views

Worrisome HD related messages after power outage

Had a power outage two weeks ago on my BSD server that my UPS decided then was a good time to fail. Just fired it up this evening only to have the following errors show during what I would assume is ...
2
votes
1answer
204 views

GRUB won't boot, live CDs either

First, my computer crashed slowly, as if all the files were being deleted, then when I tried to reboot, GRUB just didn't show up. I also tried to boot on a live CD but it doesn't work either (yes, ...
4
votes
2answers
818 views

Run Python Portio script as normal user without root access

I know there are risks running a root script as a normal user, but in this case I don't have a choice and what I am doing is machine related. I have an Small Board Computer that has GPIO ports and I ...
4
votes
1answer
157 views

TWAIN API support on FreeBSD

Does FreeBSD support in any way the TWAIN API? If not, what is the API that could be used to read data from imaging devices (webcams) - preferably in a portable way.
9
votes
4answers
758 views

How do I disable or change the caps lock key on my keyboard?

We have ergonomic keyboards at work which I'm not entirely used to. I seem to keep hitting the capslock key while I'm in vim and it's starting to annoy. How can I disable this key, and or change to to ...
3
votes
1answer
1k views

Linux compatible motherboard

Where can I find a list with Linux compatible motherboards. I want all features of the motherboard to work reasonably well with latest valilla Linux kernel (ie, clearly document that I need external ...
5
votes
4answers
4k views

My laptop cannot adjust brightness

I have a problem adjusting my laptop's brightness. This is a hardware problem but I can solve it with ccsm, but other programs do not work for me, e.g., xgamma, etc. Now I am running Fedora 15 and ...
1
vote
1answer
133 views

Set runlevel at boot via hardware (analog) input, switch, etc.?

I've got pretty solid Linux experience, but little in the embedded/small system area, and this one has me baffled. I've agreed to help a friend work on a project using a tiny little x86-compatible ...
2
votes
1answer
308 views

Pluggin a bunch of USB hard drives into a Linux system?

I've got a Linux system with two USB 2.0 ports and one USB 3.0 port, and I would like to know how many USB hard drives I could plug into it. On the performance side, what would the I/O access be like ...
4
votes
2answers
729 views

Are there any issues using 2TB hard drives with 4k sectors

I'm thinking of purchasing a 2TB hard drive (probably a Seagate F4), but I've read reports of Linux not being compatible with 4k sectors on these drives. Do I have to do anything specific when I ...
7
votes
2answers
4k 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?
1
vote
1answer
386 views

Debian Squeeze not booting anymore

My machine is not booting anymore. It is a debian squeeze server on amd64 with 4 hard disks and 2 software raids (md4 and md5). You can watch this video of the screen after switching it on. (The video ...
1
vote
1answer
141 views

First steps: installing a compatible Bluetooth card to my laptop? [closed]

I'm looking to install a Bluetooth card to my laptop, as it currently doesn't have Bluetooth support and I'd like to get away from having to use an external USB dongle. I own a Gateway NV51 series ...
4
votes
1answer
2k views

What determines whether an interrupt is IO-APIC-edge or IO-APIC-level?

Looking at the contents of /proc/interrupts on an x86 Linux, I see that some of the interrupts are IO-APIC-edge while others are IO-APIC-level. I wonder what determines the interrupt type, is it the ...
1
vote
0answers
237 views

Fedora 14 touchpad issue

I have an HP 3031-et series laptop. My hardware is: Intel i5 460M 3 GB DDR3 RAM Graphic Cards: ATI READON 5650 HD and Intel HD Graphic I installed Fedora 14 on my hardware, and after installation ...
1
vote
0answers
264 views

Fedora 14 graphics issue

I have an HP 3031-et series laptop. My hardware is: Intel i5 460M 3 GB DDR3 RAM Graphic Cards: ATI Radeon 5650 HD and Intel HD Graphics I installed Fedora 14 on my hardware, and after installation ...
4
votes
2answers
2k views

Slow down the CPU

I tried to slow down my CPU with powernowd and cpufreq-selector. I hoped that with lower frequency it will be less hot and I won't hear my fan every time I will run internet radio. I used the ...
2
votes
1answer
808 views

CentOS 5.6 x86 64 Not seeing all my memory

So I installed CentOS 5.6 on a box at my house and it is not recognizing all my memory. I have 2gb in the machine but when you run a 'free -m' or a 'top' or a 'cat /proc/meminfo' it only shows that ...
2
votes
2answers
930 views

Unique hardware signatures in BSD?

What unique hardware signatures can you get from, for example, a FreeBSD system? I am right now using the ethernet mac address (getifaddrs(3)) but as we all know this can easily be changed with ...
6
votes
2answers
629 views

Information about a laptop fan

Can you help me with finding all the hardware information (parameters) and configuration files about the fan in my laptop? I'm interested of the fan's parameters and configuration files that I can ...
13
votes
3answers
3k views

How to detect memory type under Linux?

Which Linux utility can tell me if I have registered or unbuffered ECC memory in my server? Lshw and dmidecode do not work for me; dmidecode provides no information about registered vs. unbuffered: ...
5
votes
3answers
839 views

Why does one linux distro run hotter than another on laptop?

I had been using Arch Linux 64 bit on a Gateway P6860FX for about two years, and recently switched to Ubuntu (also 64 bit). When I type on the keyboard, my left hand feels a lot more warmth than ...
2
votes
2answers
867 views

no network device found after Kernel update

So I managed to install Debian 5 on an eBox 3300MX (an embedded type computer). I added a custom kernel after getting a basic install done. That was to get the network card to work. After that, I ...