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• MPD to play music to single channel of my multi-channel card?

  - by hany tawfik

  I installed an Ubuntu 12-04 LTS server for a special background music application of mine, where I am using the server with an Asus Xonar DS sound card. The installation is successful, the MPD is working, the sound card is working with Alsa and its libraries installed accept for Alsa-oss. Alsamixer is working fine with left/right sides of each channel volume control through Q/Z letters shortcut when alsamixer is open in terminal . using the command " speaker-test -Dplug:surround71 -c8 -l1 -twav " I can hear every voice message coming out from the card at the right connector, so "front right/ front left" voice message are coming from first output in the card back, while the other outputs are silent..so on. The problem is that MPD is playing on all outputs simultaneously the same audio. I have been trying various configurations for the last 12 days with out any success, including trying to put mappings in the /etc/asound.conf Can any body help me achieve the above, or direct me to the right configuration of MPD or asound.conf

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• What is /etc/apache2/sites-available used for and is it necessary?

  - by Mariane

  I have 3 sites, each with a specific IP, running on apache2 (up-to-date Ubuntu). To put a site online, I just created a file in: /etc/apache2/sites-enabled and in this file I told apache which directory was the root directory for this site, and to which IP it should correspond. So I have 000-default 001-www.lapf.eu 002-www.felkin.info 003-www.seidhr.fr in this directory. My first site, lapf suddenly lost contact with its database after the domain name was transferred from another registrar unto the registrar who is also hosting the site's data. Then I did an update, and I reinstalled mysql-server and mysql-common, and I did I-have-forgotten-what to reinstall the locales (uft8 and such) which had vanished for some reason. This fixed my first site. Now I noticed that the other 2 sites are offline. Pointing a browser to them just hangs until timeout. They used to function, and their domain names did not move, they are still registered at the same place. The files are still in /etc/apache2/sites-enabled I noticed another directory: /etc/apache2/sites-available with just defaut and default.ssl in it. Why are there 2 directories, sites-enabled and sites-available? Should I copy the files from "sites-enabled" into "sites-available"? Or should I put a modified version of each in "sites-available"? command: "apache2ctl -S" VirtualHost configuration: 92.243.20.169:80 Charlotte (/etc/apache2/sites-enabled/001-www.lapf.eu:1) 92.243.21.141:80 xvm-21-141.ghst.net (/etc/apache2/sites-enabled/002-www.felkin.info:1) 92.243.4.114:80 xvm-4-114.ghst.net (/etc/apache2/sites-enabled/003-www.seidhr.fr:1) wildcard NameVirtualHosts and default servers: *:80 is a NameVirtualHost default server Charlotte (/etc/apache2/sites-enabled/000-default:1) port 80 namevhost Charlotte (/etc/apache2/sites-enabled/000-default:1) Syntax OK

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• Maximum limit of filepointer in php reached and not changeable

  - by mlaug

  I have a server with the current 5.3.x version installed. Since we are running a really simple and small server in php using sockets, that connects to a lot clients using sockets we need to raise the open file limit that has been already done on the server for the user, that runs the server #ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 29879 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 8192 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 29879 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited and we compiled php with --enable-fd-setsize=8192 still we are getting [19-Nov-2012 09:24:23 Europe/Berlin] PHP Warning: socket_select(): You MUST recompile PHP with a larger value of FD_SETSIZE. It is set to 1024, but you have descriptors numbered at least as high as 1024. --enable-fd-setsize=2048 is recommended, but you may want to set it to equal the maximum number of open files supported by your system, in order to avoid seeing this error again at a later date. once in a while in our logs. Anyone knows who to configure the unix server and php correctly to have that working? I found a bug, but that is related to 2006 and marked as "not a bug" https://bugs.php.net/bug.php?id=37025&edit=1

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• How to change Shift + <Keypad Key> behavior ?

  - by LeGEC

  I am used to use the numeric keypad for navigation (e.g. : [KP7] - Start, [KP1] - End, [KP4] - Left, etc... ). I am also used to use it for selection (e.g. : Shift+[KP7] - Select from cursor position to beginning of line, Shift+[KP1] - Select from cursor position to end of line, etc...) With the keyboard configuration installed with Ubuntu, though, Shift+[KP7] prints the character "7", Shift+[KP1] prints "1", etc... How can I change this so that Shift+[KP-key] is not mapped to [key], but to Shift+[KP-key] ?

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• php on ubuntu 13.10 won't get parsed

  - by fefe

  I'm facing a strange issue with a fresh installed ubuntu 13.10 apache2 with mysql and php. My php won't get parsed and I have been doing every changes what I found during my researches PHP 5.5.3-1ubuntu2 (cli) (built: Oct 9 2013 14:49:12) sudo a2enmod php5 apache2.conf <FilesMatch \.php$> SetHandler application/x-httpd-php </FilesMatch> /etc/apache2/mods-enabled/php5.conf </FilesMatch> # Deny access to files without filename (e.g. '.php') <FilesMatch "^\.ph(p[345]?|t|tml|ps)$"> Order Deny,Allow Deny from all </FilesMatch> # Running PHP scripts in user directories is disabled by default # # To re-enable PHP in user directories comment the following lines # (from <IfModule ...> to </IfModule>.) Do NOT set it to On as it # prevents .htaccess files from disabling it. #<IfModule mod_userdir.c> # <Directory /home/*/public_html> # php_admin_value engine Off # </Directory> #</IfModule>

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• UDDI vs SO-Aware: Why SO-Aware is the More Efficient and Interoperable Alternative

  - by Vishal

  Hello folks,   If you are implementing a service oriented architecture, and are unsure of the best governance approach to follow, then this webinar is a must-attend event for you.  We will discuss why SO-Aware is the more efficient and interoperable alternative to traditional UDDI-based SOA-governance.   Specifically, we will address the differences between UDDI and SO-Aware in terms of service discovery, configuration, and policy resolution.  Finally, we will address why the REST/Odata based model implemented by SO-Aware enables the most efficient governance not only for WCF but for BizTalk, the Windows Server AppFabric and the Windows Azure AppFabric as well.   Join us on January 26th at 2:00 ET - to register, click here    Thanks,   Vishal

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• Windows Media Center doesn't see my movies

  - by DrJekyll

  I am trying to configure my Windows Media Center (Windows 7 Ultimate). I selected folder with my movies and added it to the library, but when I went to the movies library, it says "There are no items in this library yet - Windows Media Center is searching for media files in the background...". I have all necessary codecs installed, Windows Media Player opens those movies correctly. When I right click on the file - Open with - Windows Media Center it also plays them without any problem. Any ideas why they don't appear in the libraries? Edit: Movies are coded with divx and xvid codecs and they have ".avi" extension. Windows doesn't have problems playing them. I told Media Center where the files are. I even pointed Windows Media Center to a folder with only one .avi file it still couldn't find anything there. (I have given it quiet some time, even though searching in the directory with only one file shouldn't take more than a few seconds.) When I add a folder with a lot of movies, I get a dialog box "You can wait while media is added or select OK to continue using Windows Media Center.".                                                                        At the end it says it added about 90 movies, but when I go to the libraries, it's still empty.

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• Fast distributed filesystem for a large amounts of data with metadata in database

  - by undefined hero

  My project uses several processing machines and one storage machine. Currently storage organized with a MSSQL filetable shared folder. Every file in storage have some metadata in database. Processing machines executes tasks for which they needed files from storage and their metadata. After completing task, processing machine puts resulting data back in storage. From there its taken by another processing machine, which also generates some file and put it back in storage. And etc. Everything was fine, but as number of processing machines increases, I found myself bottlenecked myself with storage machines hard drive performance. So I want processing machines to put files in distributed FS. to lift load from storage machines, from which they can take data from each other, not only storage machine. Can You suggest a particular distributed FS which meets my needs? Or there is another way to solve this problem, without it? Amounts of data in FS in one time are like several terabytes. (storage can handle this, but processors cannot). Data consistence is critical. Read write policy is: once file is written - its constant and may be only removed, but not modified. My current platform is Windows, but I'm ready to switch it, if there is a substantially more convenient solution on another one.

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• Windows 8 folder to folder sync software

  - by Danny

  I'm looking for direct folder to folder synchronization in Windows 8. I was previously using Live Mesh to accomplish this, but now it looks like that is no longer an option. Note that I'm talking about direct folder to folder sync between different computers, not syncing to the cloud. I'm aware of products like Google Drive, SkyDrive, Dropbox, etc. The problem with them is the space limitation. Basically, I was syncing important files before between my desktop and all of my laptops. One folder for example is My Pictures. This folder has almost 40 gigs of files, which is why the options listed above are not going to work for me. Just need direct syncing, nothing stored on the cloud. I was told by a Microsoft employee that SkyDrive would be replacing Mesh and would provide all the same functionality. So far this looks to be completely false, since the ability to remote desktop is gone along with folder to folder sync. Unless I'm just missing something?

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• Tab Sweep - NetBeans book, JSF components, GlassFish load-balancing, community events, ...

  - by alexismp

  Recent Tips and News on Java EE 6 & GlassFish: • Java EE 6 Development with NetBeans 7 (new book) • Java EE Module Configuration Editors Draft Proposal (Eclipse) • ICEFaces downloads (includes NetBeans 7 plugin) • JRebel 4.0 - 33 million development redeploys prevented • Greenville JUG and SELF 2011 Trip Report • Load balancing with Glassfish 3.1 and Apache • GlassFish v3 Community Poster • Manik Web Statistic Tool, a Java EE 6 app to analyze http-access-log-file • Tomcat, WebSockets, HTML5, jWebSockets, JSR-340, JSON and more

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• Digitize video?

  - by kire

  I got some movies on a VCR that i want to move to my computer somehow. (for personal use) I have a video capture card and all hardware required. I'm looking for the software - programs, codecs etc. I like the format that most torrents come in and got some of these i'd like to use as reference for comparison. How can i see what codec, bitrate, etc a movie is using so i can pick this and know that it will work and look good. For AVI-files the bitrate is visible in explorer but it doesn't mention the codec used and i also have a lot of MKV-files that explorer can't handle. All kinds of tips, tricks and other suggestions are welcome. This is completely new to me. How do I avoid that video/audio gets out of sync for example, many movies you download have audio out of sync so i guess this can happen quite easily. The encoding-program has to run on windows and for playback the movies should work on at least VLC for windows.

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• My wireless is hard-blocked

  - by Cristian

  I'm new to linux and i am having trouble getting my wireless to work I've found the following things Wireless LAN Soft blocked: no Hard blocked: yes and : *-network DISABLED description: Wireless interface product: RT3090 Wireless 802.11n 1T/1R PCIe vendor: Ralink corp. physical id: 0 bus info: pci@0000:02:00.0 logical name: wlan0 version: 00 serial: 6c:62:6d:19:38:b9 width: 32 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=rt2800pci driverversion=3.2.0-25-generic-pae firmware=0.34 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn resources: irq:16 memory:fdfe0000-fdfefff Can you please tell me what to do?

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• Sharepoint 2010, People Picker (peoplepicker-searchadforests), 1 way Active Directory trust .... process monitor to the rescue!

  - by steve schofield

  If you run Sharepoint 2010 in one forest, users in another forest and a 1-way forest in-place.  There is some additional configuration needed in Sharepoint 2010.  I included links below that discuss the details.  My post is not to be in-depth how to setup, rather share a tidbit not discussed in documentation (not that I could find).  Thanks to a smart co-worker and process monitor, it was found there is a registry entry, the application pool needs READ access.  You can either manually grant permissions on the server or add registry permission in AD Group Policy.  Hope this helps. People Picker overview (SharePoint Server 2010)http://technet.microsoft.com/en-us/library/gg602068.aspx Configure People Picker (SharePoint Server 2010)http://technet.microsoft.com/en-us/library/gg602075(d=lightweight).aspx Peoplepicker-searchadforests: Stsadm property (Office SharePoint Server)http://technet.microsoft.com/en-us/library/cc263460.aspx Application Pool needs read accessMACHINE\SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\14.0\Secure Multi Forest/Cross Forest People Pickerhttp://blogs.msdn.com/b/joelo/archive/2007/01/18/multi-forest-cross-forest-people-picker-peoplepicker-searchadcustomquery.aspx Process Monitorhttp://technet.microsoft.com/en-us/sysinternals/bb896645.aspx Steve SchofieldMicrosoft MVP - IIS

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• Used DBAN to wipe Lenovo u410 then installed Ubuntu. Need to install windows 8, but I get an error.

  - by David

  When I try to boot from my windows 8 USB (tested on a separate PC), I get this error text "The boot configuration data for your pc is missing or contains errors." I want to install windows again so I can fix a battery issue I'm having. Lenovo's power management app has an option to keep the battery at 60% if the laptop stays plugged in most of the time. I enabled this, then formatted without changing it back. I think there might be a raid setup that I may need to remove or something. I don't mind removing Ubuntu and starting fresh. I would just love some help with all this, I'm a noob when it comes to Linux.

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• Problem with all fn Keys for Thinkpad W520

  - by Ludwig

  I have a problem with the fn. I used a live version of Ubuntu 11.10 on a USB stick to install Ubuntu on my Thinkpad W520. The fn keys worked perfectly in the live version, but do not work in the installed version. I would like to know what I have messed up. I can't seem to find the fix on google, except for inserting the shortcuts by hand, which seems a little brutal, since I know they can work without prior configuration. Thanks in Advance. Edit: The keys just started working out of the blue. I don't really know what my system did or what maybe I did. However all keys work fine now. Sorry for putting this now useless question here.

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• Conditionally permitting HTTP-only requests to Tomcat?

  - by Mike

  I have 2 versions of a system: Tomcat webserver Nginx reverse-proxy sitting in front of a tomcat webserver. In version 2, nginx only ever talks to Tomcat over HTTP. A user could configure the system so that only HTTPS requests are allowed. If the user does this in Version 1 and then the XML configuration files for Tomcat takes care of this. In version 2, nginx takes care of this. The problem is this: I cannot force a user to update their Tomcat XML config files when they upgrade from version 1 to version 2 (it will be recommended that they do so) because this is done as part of a larger process. This means that if they upgrade and don't update the Tomcat config, an HTTPS request will arrive at nginx, which will proxy it over HTTP to Tomcat which will reject the request because it is not HTTPS. So I can't force an update to the Tomcat XML, and I have to use HTTP between nginx and Tomcat. Any ideas? Is there some way I can affect how Tomcat reads its config in Version 2 so that it ignores the HTTPS-only section?

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• blurry lines between web application context layer, service layer and data access layer in spring

  - by thenaglecode

  I Originally asked this question in SO but on advice I have moved the question here... I'll admit I'm a spring newbie, but you can correct me if I'm wrong, this one liner looks kinda fishy in a best practices sort of way: @RepositoryRestResource(collectionResourceRel="people"...) public interface PersonRepository extends PagingAndSortingRepository<Person, Long> For those who are unaware, the following does many things: It is an interface definition that can be registered in an application context as a jpa repository, automagically hooking up all the default CRUD operations within a persistence context (that is externally configured). and also configures default controller/request-mapping/handler functionality at the namespace "/people" relative to your configured dispatcher servlet-mapping. Here's my point. I just crossed 3 conceptual layers with one line of code! this feels against my seperation-of-concern instincts but i wanted to hear your opinion. And for the sake of being on a question and answer site, I would like to know whether there is a better way of seperating these different layers - Service, Data, Controllers - whilst maintaining as minimal configuration as possible

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• How to stop fan running always on Asus P8P67LE motherboard with ATI Radeon HD6900

  - by Chris Good

  I'm using Ubuntu 12.04 LTS. I'm not sure if it is the CPU (i7) fan or the video card fan. I've tried using lm-sensors & fancontrol sudo sensors-detect Now follows a summary of the probes I have just done. Just press ENTER to continue: Driver `w83627ehf': * ISA bus, address 0x290 Chip `Nuvoton NCT6776F Super IO Sensors' (confidence: 9) Driver `coretemp': * Chip `Intel digital thermal sensor' (confidence: 9) To load everything that is needed, add this to /etc/modules: # Chip drivers coretemp w83627ehf Like many people, I'm also getting error: /usr/sbin/pwmconfig: There are no pwm-capable sensor modules installed Here is the output of sensors: # sensors radeon-pci-0100 Adapter: PCI adapter temp1: +71.0°C coretemp-isa-0000 Adapter: ISA adapter Physical id 0: +44.0°C (high = +80.0°C, crit = +98.0°C) Core 0: +44.0°C (high = +80.0°C, crit = +98.0°C) Core 1: +40.0°C (high = +80.0°C, crit = +98.0°C) Core 2: +43.0°C (high = +80.0°C, crit = +98.0°C) Core 3: +42.0°C (high = +80.0°C, crit = +98.0°C) I'm hoping some-one has already solved this for my configuration because this seems to be a problem for many people and there are many different suggestions.

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• How to check DVD integrity at max read speed of DVD writer

  - by ashishsony

  I need to check the integrity of burned DVDs so that I can be sure about my backed-up data. I use DL-DVDs to take the backup. Earlier I used VSO Inspector software for the same but the day I switched to DL-DVDs the VSO Inspector gives me errors upon checking. I think the errors are because the switching of layer writing involves some dummy data somewhere. Secondly, it's damned slow for checking. I believe if there is a utility that can read all files (not the disk surface) and report if some files are unreadable would do the job. But it should be quick! Nobody wants to sit for disk checking for 3-4 hours after a quick 30 min data burn! I am looking for such a utility on Windows or Linux. Even scripts (python, etc) will do. I just want to be assured that the data is safe. Can someone help me in this? Thanks.

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• USB Logitech Rumble Pad 2 gamepad AND Thustmaster Universal Challenge Wheel not working in wine

  - by Rick Gionfriddo

  The controller is detected by the OS, and shows up in lsusb, and I can configure it with jstest-gtk, but Live For Speed in Wine doesn't recognize it as connected. Using Lubuntu 12.04, wine version 1.5.5. P.S. - It worked on a previous install of regular Ubuntu 12.04, using the same Wine version. Have tried installing/overriding/un-overriding various DLL's through winetricks to no avail, including xact and dinput8. Since it worked in a previous install of the same version, I figured it was a configuration error, and that I should ask here as opposed to put in a bug report on winehq. EDIT: I just used both controllers in TORCS... why do they work in native games, but not in wine?

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• How to use Btrfs with compression on external USB hard drive?

  - by Andre

  I would like to make use of Btrfs' transparent compression on an external drive. Which tool is best for formatting the drive? Disk Utility or GParted? How do I activate the compression? During formatting or when I mount the drive? I guess at mount time. I'm using usbmount to automatically mount newly attached devices, because nobody is logged in on the desktop. Would I have to set general default options somewhere in a system configuration file to get Btrfs mounted with compression, or would I specify this via FS_MOUNTOPTIONS in /etc/usbmount/usbmount.conf and how? Thanks!

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• What is bootstrap listener in the context of Spring framework?

  - by jillionbug2fix

  I am studying Spring framework, in web.xml I added following which is a bootstrap listener. Can anyone give me a proper idea of what is a bootstrap listener? <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> You can see the doc here: ContextLoadListener Bootstrap listener to start up and shut down Spring's root WebApplicationContext. Simply delegates to ContextLoader as well as to ContextCleanupListener. This listener should be registered after Log4jConfigListener in web.xml, if the latter is used. As of Spring 3.1, ContextLoaderListener supports injecting the root web application context via the ContextLoaderListener(WebApplicationContext) constructor, allowing for programmatic configuration in Servlet 3.0+ environments. See WebApplicationInitializer for usage examples...

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• AlwaysOn Architecture Guide: Building a High Availability and Disaster Recovery Solution by Using AlwaysOn Availability Groups

  SQL Server 2012 AlwaysOn Availability Groups provides a unified high availability and disaster recovery (HADR) solution that improves upon legacy functionality previously found across disparate features. Prior to SQL Server 2012, several customers used database mirroring to provide local high availability within a data center, and log shipping for disaster recovery across a remote data center. With SQL Server 2012, this common design pattern can be replaced with an architecture that uses availability groups for both high availability and disaster recovery. This paper details the key topology requirements of this specific design pattern, including quorum configuration considerations, steps required to build the environment, and a workflow that shows how to handle a disaster recovery event in the new topology.

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• HTTP Error: 413 Request Entity Too Large

  - by Torben Gundtofte-Bruun

  What I have: I have an iPhone app that sends HTTP POST requests (XML format) to a web service written in PHP. This is on a hosted virtual private server so I can edit httpd.conf and other files on the server, and restart Apache. The problem: The web service works perfectly as long as the request is not too large, but around 1MB is the limit. After that, the server responds with: <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>413 Request Entity Too Large</title> </head><body> <h1>Request Entity Too Large</h1> The requested resource<br />/<br /> does not allow request data with POST requests, or the amount of data provided in the request exceeds the capacity limit. </body></html> The web service writes its own log file, and I can see that small messages are processed fine. Larger messages are not logged at all so I guess that something in Apache rejects them before they even reach the web service? Things I've tried without success: (I've restarted Apache after every change. These steps are incremental.) hosting provider's web-based configuration panel: disable mod_security httpd.conf: LimitXMLRequestBody 0 and LimitRequestBody 0 httpd.conf: LimitXMLRequestBody 100000000 and LimitRequestBody 100000000 httpd.conf: SecRequestBodyLimit 100000000 At this stage, Apache's error.log contains a message: ModSecurity: Request body no files data length is larger than the configured limit (1048576) It looks like my step #4 didn't really take, which is consistent with step #1 but does not explain why mod_security appears to be active after all. What more can I try, to get the web service to receive large messages?

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• Ubuntu 10.10 freezes

  - by albert green

  Hi, I have the following configuration: CPU: amd athlon 64bit Motherboard: Phoenix with awardBIOS v6.0 APIC mode = disabled Video card: GeForce 5500 Sound card: soundblaster live 24bit RAM: 1.5GB Partitions: ext3 32GB where I installed Ubuntu. Swap 500MB. 180GB Fat32 unmounted. contains data only. I installed Ubuntu 10.10 and used the "Additional driver" program to get the nVidia proprietary drivers. The system works for sometime and randomly freezes. The mouse and keyboard are not responding and I am not able to do a SSH. The only solution is pressing the power button. I tried Kubuntu 10.10 and 32/64-bits versions as well. There is nothing in the logs to suggest what the reason might be. Any help will be appreciated. Thanks in advance.

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