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• Is it better to use a crowded 2.4GHz Wi-Fi channel 1, 6, 11 or "unused" 3, 4, 8, or 9?

  - by Luke

  I understand that 2.4GHz Wi-Fi channels overlap, and that the only non-overlapping channels in the US are 1, 6, and 11. Generally, my signal strength on channels 1, 6, and 11 are much stronger than my neighbors' on the same channel. However, several of the channels may have 4 or 5 others on that same channel. In this scenario, is it better to use 3, 4, 8, or 9? Or is it better to use the crowded channels 1, 6, and 11? As a secondary question, does it even matter that my signal strength is much higher than theirs? Related: Why use wifi channels other than 1, 6 or 11?

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• I can't set the resolution to that recommended by my monitor

  - by F4r-20

  Firstly, I have looked here but didn't find what I needed. I have a Dell Optiplex 380 only using the on-board graphics (believe its the Intel G41 Express Chipset) but I can't seem to get the resolution right. The monitor I'm using (HP LE1901w) wants me to use 1440x900 but the only options I get are: 1600 x 1200 1366 x 768 1360 x 768 1280 x 1024 1280 x 960 1152 x 864 1024 x 768 800 x 600 So it will allow me to go higher or lower but not 1440x900. I've tried getting the driver from various different sources (Dell, Intel, Windows 7 Update) but still can't get that option. Does anybody know what else I can try?

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• Is there a way to get a 10000x10000 virtual resolution desktop?

  - by pingo

  I have a java applet map viewer and I'd like to plot out the map it displays. To do that I need to open it in a high enough resolution to avoid too much stitching. Is there any possible way I could get a desktop with such high resolution? So far I've been able to use panning 2560x1920 by booting windows 7 in VmWare Player. Would it be possible to get it higher? Maybe this would be doable on Linux? The whole thing can be laggy as hell as long as it will render my screenshot...

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• Move a window back into the visible area in Xubuntu?

  - by Johan

  I have this annoying little problem on my laptop that sometimes after I have used a external monitor (with higher resolution) some applications place them self outside the visible area of my desktop. So the question is how do I move them back into the visible area? (Please note, no part of the window is visible so I can't use the mouse.) Is there some app that can give me focus to move a application to the mouse pointer or something like that? Please note that I'm running Xubuntu (XFCE) on this laptop. Thanks

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• Good Choice of Memory for Asus K52F-BBR5

  - by Christopher Painter

  I recently purchased an Asus K52F-BBR5 notebook. It's a basic laptop with an Intel P6100 CPU and Mobile Intel® HM55 Express Chipset. It came with 3GB of DDR3 SODIMM memory and I'd like to expand it to 8GB. I'm a little confused by DDR3 nomenclature and not up to date on my knowledge of chipsets. I'd like to make a good choice when selecting memory for it. Crucial's database suggests using either a PC3-8500 with CAS 7 or a PC3-10600 with a CAS of 9. Is the 8500 better because of it's CAS 7 or will my chipset run the memory async at a higher speed and get better performance? Which would be a better choice for my chipset and CPU? Price difference is negligble.

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• Connecting Dell XPS 17/HP Pavilion dv7 (nvidia GT 650M) to Apple LED Cinema Display for 2560x1440 resolution from notebook

  - by alphaTrader

  Is there any way to run higher than 1080p resolution from a Dell XPS 15/17 or HP Pavilion laptop? Specifically, I am planning to buy Dell XPS L721X or HP Pavilion dv7-7005tx with nvidia GeForce GT 650M and connect it to the Apple LED Cinema display via mini Displayport (I don't think Thunderbolt is supported on these notebooks). The idea is to get 1080p on the notebook and 2560x1440 on the main display. Only one of the montitors is active at any time. I asked Dell and they weren't of much help.

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• RCA monitor won't display highest resolution when NVidia drivers are installed

  - by novellterminator

  My computer is a dual-monitor setup. It won't display my second monitor's highest res... In fact, it will only display one resolution. Anything higher or lower makes the monitor not show the screen. I've had this problem with this computer, and I upgraded almost all my components (cpu, RAM, mobo, and video card included) and I still have this problem with my new setup. This leads me to believe it's a problem with my monitor and the NVidia driver together. Any thoughts on what can be done? The manufacturer of the monitor doesn't make a driver for this monitor. I used to run Windows Vista and now my new setup runs Windows 7.

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• wmp12 refuses to convert files when syncing

  - by Carbonara

  I have quite a large music collection of MP3s at 320kbps and some WMA files at various bitrates. I'm trying to sync some of them to my HTC Desire and am quickly running out of space. WMP12 has options to set, per device you wish to sync, to auto convert to a lower bitrate whilst syncing. I have set this to auto convert files to a maximum bitrate of 192kbps, that way I can fit more music on the device but keep the files on my PC at the higher rate. See these screens to see that it's set up correctly. Only problem is, surprise surprise for a Microsoft product, it doesn't actually work. Any file that is greater than 192kbps, MP3 or WMA simply fails, doesn't get converted or copied to the device. The message in the sync log displays the rather unhelpful message "error" and that's it. Any help would be appreciated. I'm not really looking for alternative software solutions I'd like to get this working since that's what it's supposed to do.

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• IE Search Provider: Specifying gTLD / Country-Specific Site

  - by jwa

  I am based in the UK, and as such typically use google.co.uk as my search engine. However, my employer is based in continental Europe, and thus my internet proxy is located overseas. As a result, IP geo-location presents a location outside of the UK. Google detects this, and as a result will redirect my searches from the address bar to a foreign Google domain. This leads to "local" answers having a higher ranking, many of which are not written in English language! Is there a specific search provider / URL I can give to IE which will use a specific gTLD of google (.co.uk), rather than performing the location-based redirect?

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• DAW with realtime pitchshifting

  - by monov

  I'm very happy with Renoise but it has a problem, it can't do realtime pitchshifting. For example, consider a breakbreat which I want to trigger at different pitches sometimes. Like I keep 'Q' pressed for a 'C' pitch, but then I press 'B' for a lower pitch. In Renoise the resulting beat is not only lower pitch, but also longer/slower. I want it to be the same speed, just a different pitch. I've been doing this externally in Audacity, then keeping a couple of different pitched versions in Renoise but that's tedious. Or consider a melodic segment snipped from a song into a sample. Say I want to play it simultaneously in its real pitch and 5 semitones higher, so it forms a sort of chord effect. Again, no easy way to do this in renoise. Is there a DAW app that does that kind of thing? I've heard of ableton live, it has 'live' in the name so maybe it can do it?

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• How can I tell which laptop touch-screens work well with a stylus (for drawing/taking notes)?

  - by BlueRaja

  I'm looking for a laptop with a touch-screen and stylus for drawing/note-taking. I've read the difference between the different kinds of styluses, but that's only half the story - what about the touch-screen? How do I know if the touch-screen supports "palm-rejection"? Or if the included stylus is a capacitive stylus or a "Wacom digitizer"? Or if the screen will even support Wacom? How can I tell how accurate the touch-screen is (from my testing, some definitely seem to have higher "resolution" than others)? Is there anything else I should be looking at? I don't see any of this information on, for instance, the Newegg specs page for a laptop.

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• Can Remote Desktop connect only 2 monitors when the client has 3 or 4 monitors connected?

  - by user12931

  I have three monitors (all 1920x1200) connected to my desktop and I would like to RDP into another computer (running Windows Server 2003) and use only two of my three monitors. The main monitor is used for notification from the LAN like email, build status, etc. I've tried modifying the .rdp file to have a higher resolution (i.e. 3840x1200 ) which sort of works but the bits per pixel goes down to 8 and you have to manually resize the window which means that you need to change it to around 3840x1150. If I supply /span to the commandline it gives me a bit more than 3840 spanned across the three monitors (is there perhaps a limitation of say 4096 for the maximum resolution?). WORKAROUND: Connect twice to the same computer. Here's an interesting post from Microsoft: http://blogs.msdn.com/b/rds/archive/2009/08/21/remote-desktop-connection-7-for-windows-7-windows-xp-windows-vista.aspx

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• Equalizer for Toshiba Satellite Pro Laptop (Windows 7) (has Realtek sound)

  - by Need Help

  Hi, I've been trying to find a way to have a real equalizer for my Toshiba Satellite Pro Laptop. I don't know much about computers but the guys in the store seem to know less than I do! From what I've been able to glean through friends, Windows 7 no longer supports a real equalizer function with Realtek, and the result is a fake "equalizer" that does nothing. I have hearing issues so not being able properly adjust the higher frequencies is causing me physical pain and ringing in my ears. I've tried to decipher the threads I find online but am quite confused by them. Basically I need an equalizer that will work with Windows 7 (with everything, internet, skype, music, etc). The current drivers offered by Realtek do nothing except make the sound inaudible. The one that may possibly work and provide an actual equalizer is a few versions back and can't be found anywhere. Thanks! And sorry if this is a duplicate question but I am confused a bit by the threads online.

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• Turning a running Linux system into a KVM instance on another machine

  - by Charles

  I have two physical machines that I wish to virtualize. I can not (physically) plug the hard drives from either machine into the new machine that will act as their VM host, so I think that copying the entire structure of the system over using dd is out of the question. How can I best go about migrating these machines from their hardware to the KVM environment? I've set up empty, unformatted LVM logical volumes to host their filesystems, with the understanding that giving the VMs a real partition to work with achieves higher performance than sticking an image on the filesystem. Would I be better off creating new OS installs and rsyncing the differences over? FWIW, the two machines to be VM'd are running CentOS 5, and the host machine is running Ubuntu Server 10.04 for no particularly important reason. I doubt this matters too much, as it's still going to be KVM and libvert that matter.

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• Would SSD drives benefit from a non-default allocation unit size?

  - by davebug

  The default allocation unit size recommended when formatting a drive in our current set-up is 4096 bytes. I understand the basics of the pros and cons of larger and smaller sizes (performance boost vs. space preservation) but it seems the benefits of a solid state drive (seek times massively lower than hard disks) may create a situation where a much smaller allocation size is not detrimental. Were this the case it would at least partially help to overcome the disadvantage of SSD (massively higher prices per GB). Is there a way to determine the 'cost' of smaller allocation sizes specifically related to seek times? Or are there any studies or articles recommending a change from the default based on this newer tech? (Assume the most average scattering of sizes program files, OS files, data, mp3s, text files, etc.)

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• How come Core i7 (desktop) dominates Xeon (server)?

  - by grant tailor

  I have been using this performance benchmark results to select what CPUs to use on my web server and to my surprise, looks like Core i7 CPUs dominates the list pushing Xeon CPUs into the bush. Why is this? Why is Intel making the Core i7 perform better than the Xeon. Are Desktop CPUs supposed to perform better than server grade Xeon CPUs? I really don't get this and will like to know what you think or why this is so. Also I am thinking about getting a new web server and thinking between the i7-2600 VS the Xeon E3-1245. The i7-2600 is higher up in the performance benchmark but I am thinking the Xeon E3-1245 is server grade. What do you guys think? Should I go for the i7-2600? Or is the Xeon E3-1245 a server grade CPU for a reason?

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• 1024x768 gone (1024x600 availble) on HDMI, yesterday it worked?

  - by Gam Erix

  When I try to play a game called F-22 Total Air War 2.0 I get an error which says that the resolution 1024.768 is unsupported by the harware.. so I look into my desktop options and it looks like there is an option for 800x600, 1024x600, 1152x648 and higher wide screen resolutions but the 1024x768 is gone? I did play the game yezterday, I disconnected the HDMI, got upstairs, played a few more games, came back downstairs, plugged in the HDMI, launched the game and bam I got the error! I have a ATI Radeon Mobility HD5470 and the newest ATI Catalyst Center downloaded 3 days ago. How can I 'enable' the 1024x768 resolution again? Without it I can't play the game on my Big TV and I will be stuck with my little laptop screen.

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• Why does the heat production increase as the clockrate of a CPU increases?

  - by Nils

  This is probably a bit off-topic, but the whole multi-core debate got me thinking. It's much easier to produce two cores (in one package) then speeding up one core by a factor of two. Why exactly is this? I googled a bit, but found mostly very imprecise answers from over clocking boards which do not explain the underlying Physics. The voltage seems to have the most impact (quadratic), but do I need to run a CPU at higher voltage if I want a faster clock rate? Also I like to know why exactly (and how much) heat a semiconductor circuit produces when it runs at a certain clock speed.

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• Mac terminal: Resource temporarily unavailable

  - by user167108

  I'm getting an error message in the Mac Terminal when I try to run several different processes. I did some googling and looking on this site, and found out that it might be related to having too many processes running at one time. However, I'm getting these error messages when I only have a few windows open (much fewer than I was accustomed to having). Looking in activity Monitor, my %User number is at around 25%, and the %System number is around 15%. In the past, I have had both much much higher (until the people at the Apple store told me to keep an eye on it). So with these numbers lower now, what explains the Resource temporarily unavailable error message? heroku (cloud hosting) console -bash: fork: Resource temporarily unavailable -bash-3.2$ upon opening new window in the terminal sh: fork: Resource temporarily unavailable sh: fork: Resource temporarily unavailable trying to run -bash: fork: Resource temporarily unavailable

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• rsync generates very much traffic

  - by user109459

  I use rsync for backing up one of my servers with 4GB of files. When I now try to transfer these files the traffic for the files isn't the estimated 4GB. It is a lot higher. It's about 60GB. I also checked the traffic on my server, backup server and router and all three say that there was a traffic of 60GB. But at the end rsync says that it only has transfered 4GB. Another problem is that I can't debugg it because the problem occures randomly.

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• How come i7 (desktop) dominates Xeon (server)?

  - by grant tailor

  I have been using this performance benchmark results http://www.cpubenchmark.net/high_end_cpus.html to select what CPUs to use on my web server and to my surprise...looks like i7 CPUs dominates the list pushing Xeon CPUs into the bush. Why is this? Why is Intel making the i7 perform better than the Xeon. Are Desktop CPUs supposed to perform better than server grade Xeon CPUs? I really don't get this and will like to know what you think or why this is so. Also i am thinking about getting a new web server and thinking between the i7-2600 VS the Xeon E3-1245. The i7-2600 is higher up in the performance benchmark but i am thinking the Xeon E3-1245 is server grade...so what do you guys think? Should i go for the i7-2600? Or is the Xeon E3-1245 a server grade CPU for a reason?

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• Linux (Ubuntu) USB Auth

  - by themicahmachine

  I want to be able to authenticate with PAM using a USB drive with a file on it. I've read about how to do this with a PAM module that reads the specific USB hardware ID of a device, but if the device malfunctions or is lost, there would be no way to authenticate. I would prefer to use the method BitLocker uses, requiring a particular file to be found on the drive in order to authenticate. That way I can keep another drive in a secure location as a backup. Any other suggestions are welcome. I just want to require a higher level of security that just a password.

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• How can I disallow a user's scripts from accessing anything above their user folder?

  - by Jaxo

  This is probably an extremely simple question to answer for anybody who knows what they're doing, but I can't find any answers myself. I'm trying to set up a subdirectory for my good friend to test his PHP scripts on my (Apache) hosting plan. I don't want to let him access anything else on my server, however, for obvious reasons. His FTP login already leads him to the proper directory, which does not allow navigating any higher than it's root (mydomain.com/friend/). I would like the same behavior to be applied to any scripts, so he cannot simply <?php print_r(glob("../*")); ?> and view all my files. I'm thinking this can be done with an .htaccess file setting the DocumentRoot somewhere, but I can't have the file available for modification inside the user directory. Is this possible without majorly rewiring the web server? I've tried Googling all sorts of things to describe my problem, but without the proper terminology, all I get is "shared hosting" websites and people trying to sell me security packages.

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• Windows Mobile 6.5 Remote desktop

  - by mpop

  I am trying to help a friend out, we have gotten him able to connect via his windows mobile 6.5 phone to his computer via remote desktop. The problem we are running into is that the program that he needs to be able to access does not work at lower resolutions (such as his phone has) and most of the program screen is cut off (it is a VB program) Is there a way to have a "higher" resolution on the screen being sent to the Windows Mobile 6.5 phone and just have him scroll up and down on the screen? Right now replacing the phone is not an option (it might be 6 months down the line, but for now it is not an option).

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• My microphone is too quiet

  - by AmitM9S6

  I've been chatting with skype for a long time.. and I don't know why, but for X time it's fine, and then it's too quiet.. Here how it goes : I'm booting the PC - getting into a skype call with friends - talking with friends on skype - (everything goes well) - Closing the skype call - Going back to a skype call like a hour after -. They can't hear me well, I have to shout so they'll hear me, and in the settings, it's on 100% + 30 DECIBELS, so I can't raise it higher... and if I'll re-boot my PC, it'll be well until I'll close the skype call again.. Every time I'm skyping with friends well, and then when I close the call and come back after a while, they hear me really low(volume).. I've been trying to fix this problem for about 2 months! If you'll be able to help me, I'd be so happy. (btw It's connected not through USB, but through a microphone connection and headphone connection...) Also, I got Windows 7..

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