Hardware :: Finding Source Of Noise In Computer ?
Jan 28, 2011
I am trying to decrease volume of noise coming from computer as much possible, till one point from where I don't know exactly what's the source of noise.
"That noise" starts coming out of computer few seconds about booting, not while POST test, and then it's constant. To me it seems like it's coming out of cpu, but not fan. (I have disconnected all hard drives, have gpu with passive cooling installed, and it's still there. Cpu is AM3 socket AMD Phenom II 810 processor, and motherboard is Asus M4A78T-E.
Also, my other computers with Intel and other AMD processors does not produce such a noise.
Does that noise come out of CPU? is it some "computing sign" of processor (assuming that during first seconds of booting are perfectly quiet), or kind of general problem of AMD (or AM3 socket) cpus.
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Jul 4, 2010
I am on opensuse 11.2 and sometimes when I shutdown the computer, It make a noise like "bzzz" but different than error beep. I think maybe there is a problem withe the automatic detection at the boot, but I really don't know alsa configuration or udev rules very well.
Code:
$ cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xfc400000 irq 22
1 [HDMI ]: HDA-Intel - HDA ATI HDMI
HDA ATI HDMI at 0xcfeec000 irq 17
Code:
$ lspci | grep -i audio
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
01:00.1 Audio device: ATI Technologies Inc RV710/730
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Apr 28, 2011
I upgraded to 11.04 today, and ever since the upgrade my speakers (and headphones; any audio device) emit a high-pitched shriek when connected to the computer. This only happens after I enter my password on the login screen, and only in Ubuntu. There's no problem when I boot Windows.
The sound is very high pitched and my speakers play no other generated sounds while emitting this static. Obviously, I'd like to be able to have sound and listen to my music, so this needs to be fixed.
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Sep 10, 2010
I have two Linux computers and one small home router with DHCP functionality. I configured the router with the "dynamic DHCP" setting, ie, the static DHCP with MAC-Address was not used. Before that, I used the manual IP configuration, defining the two computers' names in the /etc/hosts file.
Example:
10.0.0.2 comp2
10.0.0.3 comp3
Now, with DHCP, the above example is no longer appropriate, because the DHCP server is supposed to tell the computer what IP number it will receive. However, I am missing something, because I haven't figured it out yet how to make one computer know the other computer's name. Is it that I haven't installed a name-finding package? Is there a simple way to accomplish this (one computer finding the other computers' names)?
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Feb 21, 2010
I just finished installing Debian 2.1 on a very old laptop for some light word processing and web browsing, and am trying to get apt working so I can use it and dselect to install packages. Whenever I run apt-get update as a first step, I get stuck at 0% with an eventual timeout (this also happens when running the update step of dselect).
I know that my network card (a Farallon EtherWave) is working because I can ping my local gateway and remote sites. In my sources.list, I have this line for the Debian archive for this release: deb [url]contrib main non-free
Can anyone think of why I can ping the archive successfully, but apt will not read it? Do I need to change some network configuration, or my source line?
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Oct 17, 2010
How i know who is pinging me or trying?
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Jul 16, 2010
I noticed a very very high cpu usage on my webserver. All four CPUs were running on 100%.
Top shows several perl processes from apache that run for a long time, with a high %CPU.
Since the server was fc10, I did a fresh installation to fc13, and the fresh installation didn't have this issue. Then I loaded back all the user-data, and it started again.
Several, 4, 6, 8, ... 100 perl processes from apache.
lsof -p with the pid of such a process
Code:
The estabilished connection is sometimes "proud2pirate.com" wich is a non-existing domain.
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Nov 16, 2010
I am looking for openssh 5.1 and 4.3 source rpms. Where can i download them ?
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Apr 14, 2011
where can i find linux kernel source code?
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Nov 23, 2010
I'm looking to install, and perhaps create a SlackBuild) for an application that I think might be interesting.
The dependencies listed are:
libx11-dev, libxt-dev, libimlib2-dev, giblib-dev, and libxinerama-dev
I've checked to see if the packages are installed w/:
Code:
I've also looked for any existing SlackBuilds, but the only one that showed up in the database is: "giblib"
Where can I look to find these dependencies, their sources, or determine whether they're already installed in Slackware64 13.1?
Also, how would one determine if this can compile for a 64bit, non multi-lib install?
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Jun 23, 2010
First of all, I am pretty new to linux and I have 2 install a USB OVer IP software. I downloaded the software for UBUNTU n I really do not know where to find the installer. I want to find the source code in the package too.. its an open source project. So I believe the source codes are included in that .
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May 23, 2011
After several days of searching, reading and re-installing, I'm at a complete loss as to why autofs has suddenly stopped working.
Basically, I can see the shared folders on the host computer but as soon as I try to cd into the folders I get "-bash: cd: [directory]: No such file or directory" (where [directory] = shared drive).
The setup was working before and the same exact setup is being used and is fully functional on another computer.
I'm running Ubuntu 11.04
Here is the content of auto.cifs:
Code:
Here is the content of auto.master
Code:
And credentials are stored in /etc/auto.smb.goblin (where goblin = name of windows computer sharing folders).
When I do "ls -l /home/shoryuken/TerraDrive/goblin" I get:
Code:
Now if I try to "cd" into any of the shared drives (like D-Drive, GW_Share or TerraDrive) I get the following:
Code:
A second or subsequent attempt at "ls -l" results in:
Code:
Note the question marks that are now everywhere.
I'm not sure where to look to find out why this is failing. The shared drive are visible, but then disappear when I try to access them. The same exact setup, on another machine works perfectly fine.
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Mar 7, 2011
I have a server (RHEL 4.7) with an mqueue that keeps growing over a two or three day interval. Then I have to manually flush the queue by removing all the mail in the spool directory as the sendmail flush command doesn't work. I've looked at the mail queue manually with a sendmail -bp command and it seems to show an occaisional mail item in the queue. On the other hand, there seems to be a lot more non-legitimate emails in the queue spool. how do I find out the source of the email in the main queue? Next, how do I stop it from building the queue? Next, is there anyway to automatically flush the queue once it builds if I need to?
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Jun 7, 2011
I have a situation where I need to install the following packages manually:
libstdc++ (including libstdc++6)
glibc
libgcc
All I can find online are rpms... anybody know where I can get these as tarballs?
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May 23, 2011
After several days of searching, reading and re-installing, I'm at a complete loss as to why autofs has suddenly stopped working.
Basically, I can see the shared folders on the host computer but as soon as I try to cd into the folders I get "-bash: cd: [directory]: No such file or directory" (where [directory] = shared drive.
The setup used to work and the exact same setup on another computer computer works flawlessly.
I'm running Ubuntu 11.04
Here is the content of auto.cifs:
Code:
Here is the content of auto.master
Code:
And credentials are stored in /etc/auto.smb.goblin (where goblin = name of windows computer sharing folders.
When I do "ls -l /home/shoryuken/TerraDrive/goblin" I get:
Code:
Now if I try to "cd" into any of the shared drives (like D-Drive, GW_Share or TerraDrive) I get the following:
Code:
A second or subsequent attempt at "ls -l" results in:
Code:
Note the question marks that are now everywhere.
I'm not sure where to look to find out why this is failing. The shared drive are visible, but then disappear when I try to access them. The same exact setup, on another machine works perfectly fine.
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Apr 22, 2010
What is the most well know Open Source Bussiness Intelligence application?
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Jan 3, 2011
Is there a good open-source Unicode string library for C++ (or C)?
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Jan 19, 2009
Looking for a Open Source music composition editor similar to Sibelius. I found and settled on Rosegarden. Sound card is Creative Audigy 2 Platinum EX. I also have a midi keyboard which I would like to use with rosegarden. After downloading rosegarden, I found out in order to use the MIDI sequencer, I have to compile and install a real time kernel.
I finally got my kernel configured and installed, recompiled all the video/Ethernet drivers etc (after about a dozen tries ) Now on to the issue... As root, I can run the JACK audio server with realtime priority (as it is needed by Rosegarden) with the command
jackd -R -dalsa &
it starts up and seems to run. Then as a regular user, I try to connect to the JACK audio server using the qjackctl application. Qjackctl loads, but cannot seem to connect to the jack server, giving me the message "UNABLE TO CONNECT TO SERVER AS CLIENT"
HOWEVER, using the same procedure above as root, I can connect to the jack audio server with qjackctl. Rosegarden will start as a regular user but will also not connect to the JACK audio server (therefore: no sound or midi sequencer) Ive tried running Rosegarden as root (I didnt like having to do that), but get a similar error.
Through some googling, I�ve found that JACK clients (qjackctl, rosegarden etc.) must be executed by the same user who launched the JACK server. -- no problem...Except I cannot run a realtime application as a regular user. I read online that regular users can start realtime applications using the LSM module (whatever that is, I couldn�t find all that much).
how do I start the jack audio server in realtime mode as a regular user? if that is not possible...Is there a way to configure JACK so that it is started by root, but allows clients launched by regular users to connect?
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Aug 30, 2010
I'm searching for the cheapest single board computer which can run Linux. It must have ethernet and at least one serial port.I'm currently looking at these modules from Technologic Systems, but wondering if there's anything cheaper out there?
[URL]
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Oct 24, 2010
I got an old laptop from my brother, it has ubuntu 6 on it right now. The computer is real old, complete with a windows 95 and pentium II sticker on it. I'd like to put a new install on this but first I would like to find out how to check the hardware specs like processor and ram so i can choose what to install. How can i do that?
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Dec 11, 2010
Is there any way to find out which device/event caused Ubuntu (10.10) to wake up from the most recent sleep/hibernation? I am trying to troubleshoot some sleep issues on a new box, and knowing what's causing it to wake up would help. I did check /var/log/pm-suspend.log but all it seems to say is Sat Dec 11 22:18:27 GMT 2010: Awake.
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Feb 17, 2010
I got a VPN Setup, issue is, I cannot ping or talk to any other computer through an external source without typing in the FQDN so for example to ping host: chucknorris
ping chucknorris.work.com.au
rather then just typing:
ping chucknorris
I do know I'm missing an arguments in my pptpd_options file, but does anyone know what?
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Sep 10, 2010
Are there any Computer Algebra Systems in the Ubuntu repositories that are GUI (and preferably GTK+) based and open source, as well as capable of graphing (and in 3D)? That being: A complete FOSS competitor to Microsoft Student.
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Dec 6, 2010
I have a problem as follows:
(1) In which way can I get the source code of command "ping" from my OS(Ubuntu9)?
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Jul 7, 2010
My desktop becomes very quiet once windows7 is loaded.. but the fan, maybe cpu fan runs continuously in fedora 13. though it's not quite noisy, I thought I didn't install the correct drivers for the Asus h55 mb. the mb cd has a directory "isolinux", which contains a boot.cat, isolinux.bin, isolinux.cfg along with two subdirectories, data & src. but isolinux.bin is not executable.. how can I install the drivers in fedora?
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Mar 21, 2011
My setup:
Acer Extensa 5635ZG
openSUSE 11.3
KDE 4.6.1 (from KDE:/Release:/46)
Nvidia G105M (with 260.19.44 driver)
After the upgrade to KDE 4.6.1 I can hear that the fan in the laptop is working harder, and hence is noisier. Before I had KDE 4.5.x (from KDE:/Release:/45).
With top I can't find anything that takes up more CPU than before.
At the moment I use Compiz instead of kwin. Kwin was a little choppy for me. (Same fan noise though.)
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Feb 20, 2011
My setup:
HP XW8200
2x 3600MHz Xeon CPUs
4GB RAM
Quadro FX3800 PCIe graphics
Dual boot Ubuntu 10.10 32bit (primary use) and XP (gaming use only)
The issue I have is that the CPUs seem to run at 100% constantly in Ubuntu meaning that the CPU fans are constantly at high. This makes the machine sound like a wind tunnel!
It is nice and quiet in XP.
I installed GKrellM monitor which is what is telling me about the 100% CPU useage.
Would using the 64bit Ubuntu make any difference? (dont really want to reinstall tbh)
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Oct 19, 2010
I have an install of Mint 9, and the fan runs a lot less then it did in Vista, but it still is way to loud because it's not very warm at all. I was wondering if there is a tool for Ubuntu/Mint that you could adjust this issue. It would be nice if it was a gui tool, but anything will do, because it's really bugging me.
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Aug 23, 2011
I have a multiboot system with Windows Seven and Debian Squeeze installed.
When i run Windows, the fans in my PC work silently, but when i run Debian they making extremely terrible noise (looks like they working at full capacity).
I have 4 fans in my chasis, 1 CPU, 1 GPU and 1 PSU, 7 total.
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Mar 18, 2010
I seem to be getting a crackling noise when switching songs in Rythmbox.
This happens with headphones and without...
Does anyone know this might be and how to fix it?
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