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• Are speakers wasting power when they are not in use?

  - by Dennis Cheung

  I guess all of you have a pair/set of speakers for your MP3s. I am just interesting to how do they do when they are not playing? How actually the power spent by the speaker? Does any the below cases matter? Idle / Silence input When you computer is off / not connected Raise the volume by hardware (turn/push the button on the speaker) Raise the volume by software (do it with your mouse) BTW, to save the world. I am here to suggest you to unplug it when you leave your PC.

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• Ideas for home media server with Dell laptop?

  - by Warlax

  Hi guys, We have an old Dell Inspiron laptop we don't use anymore and would look to turn it onto a media/backup server for music/pictures - and maybe documents/code. The laptop only has 40Gb of HD space but we can hook to it a USB external HD with an additional 80Gb. This is a very general question: - What OS should I put on it (more like, what flavor of Linux)? - What media/backup server software should I install on top of that? - How would you go about backing up to it? I need to back up computers on the same LAN, some have Windows, some OS X, some Linux. If you could point me to an all-in-one solution with a nice tutorial for non-sysadmin folks it would be greatly appreciated, thank you!!!

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• My NetGear router suddenly started showing limited access for all wifi connected laptops

  - by Yasser

  I have netgear n300 router which I had installed about 6 months back. Here is how the setup is, I have a local internet provider by the name of "Hathway" they have this modem which is in turn connected to the router and a wire from router is connected to my desktop. As shown in this pic below, except for the laptop I use a desktop rest all the connection is same So with this connection and the below configuration, every thing worked fine. The desktop would work also all my laptops and mobile devices would connect and be able to access the internet without any problem. Now suddenly since yesterday (with no changes made whatsoever to this config) all my laptops start showing the limited connection message and cannot connect to the internet. However the desktop which is connected can access the internet. Can someone please guide me on this.

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• JZ0SJ: Metadata accessor information was not found on this database.

  - by Anthony Kong

  The complete message is: (JZ0SJ: Metadata accessor information was not found on this database. Please install the required tables as mentioned in the jConnect documentation The server is Adaptive Server Enterprise/15.5/EBF 18380 SMP ESD#3/P/x86_64/Enterprise Linux/asear155/2531/64-bit/FBO/Fri Jan 14 07:04:05 2011 Google search does not turn up definite answer to the problem. A lof of result are rather dated too. I checked the documentation but it does not mention any tables. What is the root cause of this problem? At the very least I would like to see a list of the required tables somewhere?

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• Windows Swap (Page File): Enable or Disable?

  - by d03boy

  From my personal experience I've noticed that disabling the page file in Windows XP has given me, in general, the most speed gain out of any other software change I can make. Obviously this has to be done when a significant amount of RAM is available. Typically I find that it works nicely with +2GB of RAM. The only issues I've ever really had were loading up Adobe Photoshop. Is this really a speed improvement or am I imagining it? Note: In order to actually turn it off, you must not just set it to 0MB, but disable it. Otherwise Windows will just expand it when it needs to in order to meet its needs.

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• Hot video card in server

  - by DougN

  Not sure if this belongs here or Superuser (I looked at Superuser -- suspect there are more hardware gurus here). I have a server that sits in a cabinet. It's connected to a small screen that is normally off. However, the video card is running at about 210 F all the time. The rest of the PC is pretty cool (getting temps from SpeedFan). Any thoughts on a way to quiet/calm/cool the video card since it's never really doing anything anyway? I'm usually logged out on the server, and no screen saver defined. Windows is already set to turn off the screen for power saving at 5 minutes.

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• setting up rhel 5.x RPM build server for mortal users

  - by Chen Levy

  My task is to setup a RHEL 5.x build host, that can build RPMs for mortal users. On RHEL 6.x with rpm version 4.8, I have in /usr/lib/macros: # Path to top of build area. %_topdir %{getenv:HOME}/rpmbuild On RHEL 5.x with rpm version 4.4, the %{getevn:HOME} is not available. I know that I can use /home/someuser/.rpmmacros: %_topdir /home/someuser/rpmbuild and this will work for that user, however I don't want to do this for every user separately. Moreover, since .rpmmacro will not expand ${HOME} or ~ I suspect it is unsafe to use those. This in turn make /etc/skel unstable for this task (or so I suspect). So in short, my question is: How to setup RHEL 5.x host that allow all users to build RPM packages in their home directory?

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• Incorrect viewport on monitor everytime computer is booted

  - by doldertfo

  Hi, Every time I turn on my PC the viewport isn't aligned correctly on the screen - there is always a black strip on the right hand side. This is not a big issue as it can be resolved by pressing the menu button on the screen and doing a factory reset. However it is irritating having to do it every time. I am using a flat screen monitor with vga connections. The weird thing it never used to happen before with the tower Im using. Is potentially out of date drivers a problem? Thanks.

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• Incorrect viewport on monitor everytime computer is booted

  - by dolderto

  Hello, Every time I turn on my PC the viewport isn't aligned correctly on the screen - there is always a black strip on the right hand side. This is not a big issue as it can be resolved by pressing the menu button on the screen and doing a factory reset. However it is irritating having to do it every time. I am using a flat screen monitor with vga connections. The weird thing it never used to happen before with the tower Im using. Is potentially out of date drivers a problem? Thanks.

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• Windows Firewall: How to allow traffic on port 8080?

  - by Chadworthington

  I am trying to configure team Foundation Server so that 1) it is accessible from within my Home Network 2) and then make the Web site access accessible via the Internet I have a problem with point 1: When I access http://192.168.1.106:8080/tfs/web/ locally from 192.168.1.106, it works. When I access the same web site from another PC in my home network, the abive URL works only if I turn of the Firewall on 192.168.1.106. Can someone please tell me specifically how to allow traffic on port 8080 without turning off Windows Firewall? It seems that the exceptions that I specify are intended for listing programs on the box that need to communicate out. Is IIS the program that I need to make the exception? How do I specify that port 8080 traffic should be allowed for web site traffic on this port? I hope to have success with pt. 2 later but I figure (1) should be done first. I expect issues.

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• MySQL slave server not removing old relay binlogs

  - by MKzero

  I have a MySQL server with slave replication on another host. Today I stumbled across the high disk usage of the slave host and invastigated what takes up all the space. As it turns out this space is occupied by the slaves relay logs. I tried to turn the expire_logs_days variable down and restarted the MySQL daemon but the reported disk space stays the same. I could't really find anything exept that FLUSH LOGS should clear old logs. I tried that with no result. Is there any way I can reduce the disk space that the relay logs take?

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• Xcode find in document stuck in case-sensitive

  - by mjdth

  When in Xcode editing code for my objective C files, I often press Command-F to bring up the little Find-In-Document banner across the top. Sometimes this gets stuck in case-sensitive search, and when it does that it also won't loop through the entire document and sometimes won't even display the selected found string. I can't find any options to turn off the case sensitivity, and I never intentionally turned it on. I've restarted xcode several times hoping that would be it but it's changed nothing. Slightly off-topic, but this was the best place I could think of to ask this question. Thanks for any response!

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• MacBook: Can't boot into Linux partition after installation.

  - by Otto

  Hello I just installed Ubuntu. I created a partition in MacOSx using Disk utility, then deleted the partition and installed Ubuntu on the free space created. After the installation, Ubuntu said it would reboot. I hang on shutdown (which is normal, as google told me), so I used the power button to turn the MacBook off. Now I want to boot into Ubuntu. Pressing option/alt on startup only shows me the MacOSx and Windows partition. Also, the Linux partition isn't showing up on my MacOSx desktop. And in Disk Utility, I can see 3 grayed out partitions: "disk0s4", "disk0s5" and "Linux Swap". What can I do to boot into Ubuntu without losing my other partitions? Thank you for your help.

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• LCD problems: brightness / contrast blown out, can't bring up menu

  - by davr

  Yesterday, when I turned on my LCD monitor, the colors were very very bright. It looks as if someone had gone into the monitor on-screen-display and turned up brightness & contrast all the way to the max. Colors were washed out, and it's almost painful to look at. So I tried to go into the menu and see if the settings were wrong somehow...and I found that I cannot bring up the menu. All the buttons on the front of the monitor now do nothing, except the power button. I was able to go into my graphics card settings, and turn the brightness way down to compensate, so it's at least usable for now, but it's not quite right, there is definitely some loss of color resolution or something from the two extreme settings canceling each other out. Any ideas what kind of failure in the LCD might cause this? According to the control panel, the model number is: KL2490DW-D It's a 24" 1920x1200 with the brand "synaps".

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• Are there videocamera which geotag individual frames?

  - by Grzegorz Adam Hankiewicz

  I'm looking for a way to record live video with the specific requirement of having each frame georeferenced with GPS. Right now I'm using a normal video camera with a PDA+GPS that records the position, but it's difficult to sync both of these plus sometimes I've forgotten to turn the PDA+GPS or it has failed for some reason and all my video has been useless. Using google I found that about two years ago a company named Seero produced such video cameras and software, but apparently the domain doesn't exist any more and I only find references of other pages mentioning it. Does somebody know of any other product? I need to record this video in HD and have some way to export to Google Maps or other GIS software the positions of the frames in a way that I can click on the map and see what was being recorded in the video at that point. The precission of the GPS tracking is good enough as one position per second, intermediate frames of the video stream can be interpolated.

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• FTP in DMZ, TCP Ports for LDAP Auth

  - by sam

  szenario: (outside)---(ASA5510)---(inside) -Windows2008 DC .....................(dmz) ..........-Win2008 FTP Server Which Ports do I need to open from DMZ-Inside that FTP Users can authentificated on the Inside DC? I have allready opend 389 (Ldap), 636 (secure Ldap) and 53 (dns). But the ftp Client stucks allways after processing the credentials and the FTP Server gives you an eventlog "logon error". the error messages indicates that there could be an issue with closed ports. if I turn the ACL to "IP", that means all ports are open, everything is working fine.

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• Monitor sleep in Windows XP does not work. Is there an add on to force it?

  - by bert

  I have an EEE box with XP Home and a DVI connected TFT, and it does not sleep the monitor. It only starts working after I go to the energy control panel and turn it off and on again. Then the timed sleep works for the current session of computer use. After a shut down and boot next day, sleep does not work again (it is still set in the preferences however). What can hold the sleep function from working? Are there issues with Skype or MSN? Is there a utility to be less critic to processes interrupting sleep and offer a more reliable monitor sleep function for XP?

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• How to disable power to USB ports when laptop is in sleep mode

  - by Greg

  I have a Windows7 laptop with two external 2.5" HDDs and a cooling pad connected through USB ports. When I put the laptop to sleep, these devices are still powered on - the fan in the cooling pad is still spinning, the drives are still spinning. I want to set it all up so that they power down when in sleep. I tried setting the Allow the computer to turn off this device to save power option in the USB Root Hubs' Properties in Device Manager and enabling USB selective suspend in power options - it didn't work. As it's a laptop, BIOS options are extremely locked down, so I can't even see anything relevant to sleep in there. Is it even possible to do this?

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• How to manage iowait over cifs?

  - by Silvia

  For backup purposes we have Cifs file Server running that contains encrypted containers for backing up the more sensitive data. The container is mounted with cryptsetup and loop as a local filesystem and the rsync is used for backups. Because the Cifs server is not the fastest machine ever built, running the rsync process results in an iowait on the servers running the backup which in turn drives Nagios into an email frenzy. The question is, how do reduce the iowait on the server? Configuring Nagios to not report seems more like a workaround then a solution. Stretching the backups over different time intervals is already done with little effect and spending money is also not an option because apparently, we are talking about a "non-critical system".

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• help with Outlook Exchange server and curl

  - by stib

  I work on a mac in a building full of PCs, and the IT department here doesn't have IMAP access turned on on the exchange servers. So I miss a lot of meetings because I don't get reminders because I access my mail via Outlook Web access. I had written a script to scrape my Outlook Web Access calendar and turn it into iCal format, so I could get my reminders via thunderbird or iCal.app. It basically downloaded the calendar page via curl, parsed the HTML and reformatted all the appointments as ical. it wasn't elegant, but it worked. Then they changed to outlook 2007, and it doesn't work any more. I have a sketchy knowledge of curl, and almost zero knowledge of how outlook works. Can anyone point me towards a reference for getting calendar info out of an exchange server without using outlook? If I can configure curl to get the HTML I will be happy, but if there's a more elegant way, such as getting the calendar info as XML I'll be delirious.

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• Fujitsu siemens V6535 - crash when going standby ?

  - by marc

  Welcome, I trouble with my laptop fujitsu siemens model V6535. My siemens work under Windows 7, and from upgrade time (vista to 7) notice something what make me really angry. When my siemens go to standby mode (when i don't use it for some time), power diode change to red and start blinking (standbay mode). When i push power button (wake up it), blinking diode change to green but nothing else happend (nothing on display, no sound of HDD). When i press power button few second and try turn it on again... it wont display anything... i have unplug charger and then shutdown and power on again without power cable. Then he start working... Few days ago i done upgrade bios to nevest version... but it don't help... Anyone have idea what can be wrong ?

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• Can a web server and XBMC HTPC co exist happily?

  - by Mild Fuzz

  I have a machine that is currently dedicated to running my home theatre. It is way more powerful than it needs to be, and spec wise would have no problem running both a few websites and an HTPC What I wanted to know is that is this was a reasonable thing to expect of a single machine? 90% of the time, all it's power would be just for the web server ( and the odd torrent) Currently it's running Windows, but I am pretty sure I will have to turn it into a Linux box Will I run into any problems? Is there anything I need to know before I start? Any prerequisites? The webserver will be required to run Ruby on Rails sites mainly, but might be called upon to run PHP for Wordpress also.

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• How can I install a headless JDK on an Ubuntu Jaunty server?

  - by Hanno Fietz

  I recently set up a build server that requires a JDK to run (for example, to compile the Java sources). The OpenJDK package in Ubuntu pulls in the OpenJDK JRE as a dependency which, in turn, depends on a large number of packages that are only relevant for graphical environments. For the standard JRE, there's a headless version of the package, but for the JDK, no. This issue has been discussed in various places before, and one solution that I found and used was this: $ apt-get --no-install-recommends -d install openjdk-6-jdk $ dpkg -i --ignore-depends=openjdk-6-jre /path/to/just-downloaded.deb While this worked, it now leaves my system with a broken dependency tree and apt-get refuses further installs untill I run apt-get -f. Is there a better solution to this?

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• How to fix White Screen of Death after updating iTunes?

  - by cust0s

  The other night I updated my iTunes to the latest version (through Software Update) when I came to turn on my computer I was greeted with the dreaded white screen of death. I use an early 2008 iMac 24". I've tried the basic things, unplugging/turning off accessories, trying to boot from the install disk, reseting pram, etc, etc. Still no luck and no change what-so-ever. All I've been able to ascertain that my keyboard still works (by ejecting). I should point out that I did recently replace my Hard drive with a Western Digital Black 500GB (though the computer is well out of warrenty) and I'm a little concerned that the problem could be the screen.

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• Mountable online storage (no syncing)

  - by Sam

  I have a Linux VPS that I would like to turn into a media server. Like most cheap VPS's, it has a fairly small storage capacity. What I would like to do is attach the box to an online backup system such as SpiderOak or DropBox, where the files would reside and be directly accessible to either a webserver or media server software. Since the VPS hdd is small, I do not want the files to be synced to it. I would like a storage system that is online only. Ideally mountable like a network drive. Are there any services that suit my needs, or workarounds for services such as SpiderOak that do not require syncing?

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