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• 12.04 drops Wired Network if Wireless connects

  - by mitt10tim

  This is a little different then most of the questions I have seen here. When I am at my office I keep my Lenovo Thinkpad t61p running Ubuntu 12.04 x64 connected via wired Ethernet. I also typically leave the wireless radios on. After a recent update the behavior of laptop in regards to the networks has changed. It used to be that if the laptop had a wired connection, the wired would supersede the wireless. Now, when I get to work and plug the laptop in and power it up, it connects via wired (correct behavior), shortly after the wireless begins searching for its favorite network (also correct) but as soon as it finds a network to connect to, I lose Internet. If I disconnect from the wireless network, leaving the wireless radios powered on, and refresh the wired connection, all is well again. Powering down the wireless radios also corrects the problem. How can I set this up so that the wired network (if available) always has precedence over the wireless?

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• Youtube ENTIRELY crashes the computer

  - by begtognen

  About a week ago a regular Synaptic update ran in the background. Ever since, when I try to watch a Youtube video (just hitting "play" on the video) the monitor goes black for a moment, then there are just random bars of colour flashing. The only way to fix it is to turn the computer off using the power button and then restarting the computer. I'm using Ubuntu 10.04. It looks like a lot of people have had troubles since that update (red videos, videos that just don't work) but I haven't found anybody with this kind of spectacular crash. I've tried both Firefox and Chromium, same results. Any ideas?

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• Should I use float, double, or decimal for stats, position, etc?

  - by Ryan Peschel

  The problem with float and double is that they are not exact. If you are to do something like store replays, the values would have to be exact. The problems with decimal is that they are approximately 16x slower (confirmed by searching and personal testing) than floats and doubles. Couldn't Vector2s be another problem because they use floats internally for all the components? How do other games solve this problem? I'm sure they must use floats and doubles but aren't they not deterministic across platforms and different architecture? The replay files for games like SC2 run in a linear fashion so you cannot skip ahead so how do they solve the determinism issue with floating point numbers?

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• ASUS EeePC Fn+F2 ruins wireless until restart

  - by dawmail333

  I managed to get my wireless working beautifully (ath5k driver working great), and it works over a disable/enable wireless cycle, even a suspend/wakeup cycle (read some people have issues with that). Unfortunately, I discovered that if I press Fn+F2 on my keyboard (Asus EeePC 900HA, so that's the wireless toggle key), wireless then stops working until I restart the computer. How can I fix this? I'm running UNR 10.10 (with Unity turned off tyvm!). I heard something about Jupiter controlling these keys, but what about asus-laptop? How can I fix this behaviour? TIA. (Note, I'm a power user, but still fairly new to Linux. I'm picking up speed though).

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• Ubuntu 14.04 + nvidia-331-updates makes a blank desktop screen

  - by Achint

  I upgraded my installation from 13.10 to 14.04. The problem is that whenever I install the Nvidia drivers from the GUI, upon reboot or trying to login again it only shows the wallpaper of my desktop and nothing else. The mouse does move around, but nothing works. I am unable to open a terminal or do anything else. If I go into the tty console and purge the drivers, then things seem to work again. I have an Optimus setup, with an onboard Intel and discrete Nvidia GTX770M card. It's a 64-bit architecture. I really need to work with CUDA, and was hopeful after hearing that nvidia-prime was released, but this is a real downer. Any help on this?

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• Fix hibernate on Thinkpad X60 with 12.04 Precise Pangolin

  - by ddaa

  I own a ThinkPad X60, hibernate used to work on 10.04 Lucid Lynx, but no longer works correctly on 12.04. I am aware of how to enable hibernate in Power Manager. The problem here is, in the default configuration, pm-hibernate works, but the system fails to resume correctly. There is no video glitch, black screen or other. The resume process just freezes on the Ubuntu splash boot after a few seconds of disk activity. Is there a way to fix the system configuration so hibernates works again?

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• Laptop Regret

  - by Richard Jones

  Just a casual observation. To base line this. I've discussed this one terrible horror in the past, 'hot bag syndrome'. This is when you realise that you've just travelled home with your laptop enclosed in its carry case without it properly powering down. So new one today, 'Laptop Regret' You pull out your laptop and power it up connected to (boss in room) projector demo to reveal your previous nights Spotify dance music party mix / stroke / eclectic mix of website surfing (make what you will) collection. Its a social phenomena, it happens (not to me obviously), but I'd just like to benchmark my findings. (OK, it did happen to me)

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• Ubuntu 12.04 wired ethernet not working and wireless not working, How do I fix it?

  - by Eloy

  I am new to ubuntu. I recently installed the latest ubuntu for desktop from http://www.ubuntu.com/download. I was very excited to start using ubuntu until I booted the computer and saw that i couldn't connect to the internet at all. I have spent hours trying to figure this out. I keep running into people suggesting installing drivers etc. I have tried about everything and nothing seems to work. I have the ethernet cable connected to the computer but it doesn't recognize it. I ran the following: lspci | grep -i eth and I get this 09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5752 Gigabit Ethernet PCI Express (rev 02) Any help would be much appreciated. I am kind of bummed I have spent all this time tyring to get the internet to work and haven't even gotten to use the power of ubuntu Update copied from comment: Changing the Ethernet cable to a different one fixed the problem.

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• KC Java Users Group Presentation

  - by rodelljr

  Originally posted on: http://geekswithblogs.net/rodelljr/archive/2014/08/22/kc-java-users-group-presentation.aspxI would like to thank the KC Java Users Group for allowing me to do my presentation; Supporting Multiple Devices Part 2. In this talk, I discussed a Master/Detail application that runs on Android 2.2 devices and forward. I used the Actionbar compat Android library to allow the older devices to have an actionbar. I also used a SQLite database for my data. And just to add one last thing, I also incorporated the use of custom fonts. If you are interesting in looking at this sample application, I have uploaded it to my GitHub account here. I also have a Power Point presentation which you can get here.

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• why my system gets frozen?

  - by user93019

  Is now something like 2 weeks since my system gets frozen while browsing the web, using apps, watching videos on web sites, basically using any part of my netbook, even when i'm only using one program (like the web browser) this happens. Is so frozen, that the only option i have left to do is to PRESS and hold the power button, nothing else works; I have seeing an error message telling me about a "compiz" error, but not all the times, and this happens every day, some times 2 or 3 times, during the same day. Why does this happens? how can i fix it? please help. Just to let you know i have my system up to date on 12.04 32 bits version, working on an Acer aspire AOD257, 1 Gb RAM, Intel® Atom™ CPU N570 @ 1.66GHz × 4 .

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• How to smartly optimize ads on website

  - by YardenST

  I've a content website that presents ads. Now, my team want to optimize it for a better experience for the users. (we really believe our ads are good for our users.) We are sure that every website deals with this issue and there must be some known ways and methods to deal with it, that smart people thought of before. so what i'm looking is a tested, working method to optimize ads. for example: if i was asking about optimizing my website in Google, I would expect you to answer me: learn SEO if i was asking about optimizing the use of my website: usability testing. navigation: information architecture what is the field that deals with optimizing ads?

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• My system screen goes black and displays Term Signal Killed?

  - by Quandite

  My computer will often just die randomly while I am using it. The screen goes black and sometimes displays the words TERM signal killed along with other things and sometimes it displays nothing. The writing stays on the screen momentarily before it disappears to just black. I then have to hold in the power button to turn it off and then re boot. Here are the specs... help! Ubuntu 10.04(lucid) Kernel Linux 2.6.32-23-generic GNOME 2.30.2 memory 495.7 MiB processor Intel(R) Pentium(R) 4CPU 1.80GHz

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• Modelio passe en version 2.1.1, l'outil de modélisation augmente son ouverture à l'open source

  Modelio passe en version 2.1.1 L'outil de modélisation augmente son ouverture à l'open source Modelio, l'outil de modélisation pour le développement de logiciels, la gestion de processus métiers et l'ingénierie des systèmes, passe en version 2.1.1, et accentue son ouverture open source. Modelio est par exemple désormais disponible nativement en format 64 bits ou 32 bits sous les différentes plateformes Linux RedHat, Ubuntu et Debian et gère la documentation Libre Office (en plus du HTML et de Microsoft Word). Résultat de plus de 20 ans de développement propriétaire, l'environnement open source Modelio 2 est disponible sous licence GPL v2 et est doté d'une architecture modulaire, d...

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• Is it possible to work with a dedicated server in XNA?

  - by Jake

  Hi I want to release my XNA game to the XBOX platform, but I'm worried about the networking limitations. Basically, I want to have a dedicated (authoritative) server, but it sounds like that is not possible. Which is why I'm wondering about: Using port 80 web calls to php-driven database Using an xbox as a master-server (is that possible?) I like the sound of #1, because I could write my own application to run on the xbox, and I would assume other users could connect to it similar to the p2p architecture. Anyone able to expand on theory #2 above? or #1 as worst-case scenario?

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• upower wants to uninstall lots of packages

  - by Phoeey

  I'm running Natty and have a problem with upower. Currently installed is upower 0.9.5-4 (Maverick?), with upower 0.9.9-4 available. Update Manager won't upgrade it, but if I go to Synaptic and use Ctrl+E (force version) it prompts to remove all of the following packages: gdm gdm-guest-session gnome-power-manager gnome-session gnome-session-bin indicator-session nautilus-share ubuntu-desktop This seems like a fair chunk of the GUI, so I'm not keen to let it go ahead. Is there a better/safer way to force the package upgrade? NOTE: This machine was upgraded from Maverick to Natty using the Alternate CD a while ago. It locked-up about 80-90% through the upgrade requiring the machine to be hard reset, but it finished the upgrade process after rebooting. I was making sure everything was OK before going to Oneiric when I discovered this little gem.

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• screen blacks out after pressing a key on keyboard, specially enter key

  - by ahmad598

  I have natty, and i have installed kubuntu-desktop package. before installing it, everything was fine but after that, this thing happens: when I'm typing, after stroking a key, screen blacks out, fan speeds up, and i have to turn off machine by pressing power button. it just happens in many different apps (chromium, hotot, kde proxy settings, ...) and in every environment: unity, kde, gnome 2. i don't know what details i must provide with this question, and i don't like to remove my kde desktop, or re-install my ubuntu. any ideas are appreciated ;-)

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• Oracle Exadata X3 Launch Webcast

  - by Cinzia Mascanzoni

  Available on-demand, this webcast covers everything your partners need to know about Oracle’s next-generation database machine. They will learn how to improve performance by storing multiple databases in memory, lower power and cooling costs by 30%, and easily deploy a cloud-based database service. Exadata X3 combines massive memory and low-cost disks to deliver the highest performance at the lowest cost. Partners won’t want to miss this webcast. Invite them to watch today! View and share the replay.

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• Attributes and Behaviours in game object design

  - by Brukwa

  Recently I have read interesting slides about game object design written by Marcin Chady Theory and Practice of the Game Object Component Architecture. I have prototyped quick sample that utilize all Attributes\Behaviour idea with some sample data. Now I have faced a little problem when I added a RenderingSystem to my prototype application. I have created an object with RenderBehaviour which listens for messages (OnMessage function) like MovedObject in order to mark them as invalid and in OnUpdate pass I am inserting a new renderable object to rederer queue. I have noticed that rendering updates should be the last thing made in single frame and this causes RenderBehaviour to depend on any other Behaviour that changes object position (i.ex. PhysicsSystem and PhysicsBehaviour). I am not even sure if I am doing this the way it should be. Do you have any clues that might put me on the right track?

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• Need to run `nvidia-xconfig` before booting

  - by RobinJ

  I formatted my whole hard drive, and installed Elementary OS (Ubuntu 10.10) on it in an attempt to get rid of all the problems. It failed. Every since I installed the nvidia-current drivers I first need to boot into recovery mode, and run sudo nvidia-xconfig before booting the system in the normal way. If I don't do this, it will just stop at a black screen after the boot screen, responding to nothing but CTRL+ALT+DELETE and the power button. When I boot the system after running the nvidia-xconfig command I can just start working as usual. Update I suspect it's got something to do with Plymouth. I shall have to try it again before I can confirm it, but removing the quiet and splash parameters from the kernel line in /boot/grub/grub.cfg seems to help. But still, I like my Plymouth screen. A black screen with text rolling over it (or without the text) doesn't attract me much.

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• Need help with gimp 2.8 (cpu not used to full capacity) [closed]

  - by Birgir Freyr

  I know this isn't the right place to ask this question but maybe some one here can point me out to were I should place this question (or help me fix it :)). Since I updated Gimp to 2.8 (and let me start by saying how happy I am with the new gimp) I have notice that Gimp only uses 35% max of my CPU power. I have tried changing settings, assigning only one CPU to Gimp (both in gimp preference and in windblows task manager). No matter what settings I choose it only uses 35% of the cpu. If I assign just one Core to it then Gimp will use 100% of that core (which is about 35% of a three core processor I have. Any thoughts? I am using Windblows 7 64 bit, gimp 2.8.0, AMD a6-3500 cpu. I also use Ubuntu (am going to see if it works the same there). Any help would be great.

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• How can I use a CanoScan N640Pex scanner over a USB/parallel cable?

  - by detly

  I have an old CanoScan N640Pex flat bed scanner and a USB-to-parallel port cable through which I can connect it to my PC. Unfortunately neither Simple Scan nor XSane detect the scanner. I'm running Ubuntu 12.04 (plus updates and backports) with kernel 3.2.0-31-generic. dmesg tells me this when I plus the cable in: [256411.641910] usb 7-1: new full-speed USB device number 10 using uhci_hcd [256411.872392] usblp0: USB Bidirectional printer dev 10 if 0 alt 1 proto 2 vid 0x067B pid 0x2305 [256411.872417] usbcore: registered new interface driver usblp lsusb shows this device for my cable: Bus 007 Device 010: ID 067b:2305 Prolific Technology, Inc. PL2305 Parallel Port The device node created is /dev/usb/lp0 crw-rw---- 1 root lp 180, 0 Sep 9 17:46 /dev/usb/lp0 There is no extra information from any of these commands when I attach the scanner to the cable and power it on, though. I suspect I might need to change something in /etc/sane.d/canon_pp.conf, but I have no idea what to put for the ieee1284 line, since there is pretty much zero documentation for that parameter. So how can I get it to work?

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• Ubuntu 11.10 shut down stuck

  - by Jack Mayerz

  When I shut down it is always stuck on the shut down screen where it displays the ubuntu logo and the little dots. I tried to shut it down through shell, I checked the Init. process, shell and everything. I can't find out where the problem is!! I tried to shut down through terminal session and still the same problem. It's really annoying and I have to shut down with power button every single time. Anyone got a solution?

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• Windows Not Sleeping All Night

  - by John Paul Cook

  Having a computer wake up when you don’t want it to wastes electricity and drains the battery on mobile devices. My desktop had been waking up at night, so I assumed it was some network traffic on my home network. I unchecked Allow this device to wake the computer on my network adapters . Figure 1. Network adapter Power Management tab. That didn’t solve the problem. I included the screen capture in Figure 1 because it could be part of the solution for someone else. To identify the root cause instead...(read more)

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• To be or not to be: a solutions architech [closed]

  - by jQwierdy

  short version: as a student taking a summer internship, whats more useful for later in my career, taking a job as a solutions Architect, or a software engineer? Long version: I'm a CS major in my 3rd year, I've interviewed with some of the big companies and did not get job offers year (Morgan Stanley, Microsoft, FacebooK) but did receive offers from a startup. I actually got two offers from the same start up. I really like the startup and despite the (much) lower wage at it compared to a bigger company, I could do solutions architecture. Solutions architects (I think) work more on figuring out high level solutions directly for clients, so I'd be working often with a sales team and developers. Everyone knows what (generally) a software engineer does. And so my question is this: for my career, what would be more beneficial to a) know how to do, and b) have on my resume.

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• Windows 8 : vers un lancement en début octobre ? L'OS sera disponible sur 3 modèles de tablettes ARM et 40 PC, selon Bloomberg

  Windows 8 : vers un lancement en début octobre ? L'OS sera disponible sur 3 modèles de tablettes ARM et 40 PC selon Bloomberg Selon le magazine spécialisé Bloomberg des sources proches de Microsoft, la société devrait finaliser avec le développement de la version finale de Windows 8 cet été, et prévoirait de lancer l'OS en début octobre. Le système d'exploitation fera son apparition sur le marché avec 40 modèles d'ordinateurs sous l'architecture x86 Intel et 5 dispositifs ARM parmi lesquels 3 tablettes. Le peu d'appareils ARM au lancement de Windows 8 serait dû aux exigences de Microsoft qui a imposé des standards de qualité rigoureux. Avec Windows On ARM, Microsoft se lanc...

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