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• How do I read my PDFs and watch videos properly again?

  - by asp

  Whenever I watch videos, either online of local via Totem and/or open PDF files using evince. The system gets really, really bogged down. All apps get really slow, menus take forever to display, switching windows gives me time to make a coffee, etc. I have a couple of bug reports open on this, but what do I need to do to really troubleshoot the issue? I've purged Adobe Flash from the system, but YouTube HTML5 videos still have the issue. A bunch of PDFs saved locally trigger the problem. And to (temporarily) remove the slowness, I need to shutdown the computer, breath for a few minutes, then restart. A simple reboot does not do the trick. How can I identify the cause? This only started on 13.04. I've had Ubuntu on this machine for a year without a problem until "upgrading" to 13.04. I am not a programmer, but I suspect an issue with the Intel video driver.

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• Why does my Ubuntu Software Center not work? [closed]

  - by Alex Mundy

  Possible Duplicate: How do I fix a “Problem with MergeList” error when trying to do an update? I've been having trouble with my Software Center. Whenever I try to open it, or even do an apt-get in the terminal I get this message: Reading package lists... Error! E: Encountered a section with no Package: header E: Problem with MergeList /var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_precise-security_restricted_binary-i386_Packages E: The package lists or status file could not be parsed or opened. How do I fix it? Note: I'm new to Ubuntu. I need simple instructions for the moment.

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• Separating portion of website to its own server

  - by Brett

  So my job is to take the homepage (or maybe I should say "homesite" because it encompasses a few interrelated pages) and drag this onto its own Apache server. The problem I'm having right now is being able to weed out jumbled/bundled files (such as folders of js, css, and other files that i cant even identify) and knowing what is necessary to keep the homesite running. I'm new to this stuff (I'm an intern) so feel free to ask questions if I'm leaving vital information out. What I'm asking of you guys here is basically any pointers or tips you may be able to give me in order to get the job done. I could use some advice from people with a little more experience in web development. btw: This question may appear as though I have not completed any prior research and that is, for the most part, true. But the problem is I really am not sure how to research this. If you guys could throw me some keywords to play with that would really be helpful. Thanks!

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• Synchronise graphics and logic code

  - by Skeith

  I have a procedural approach to the game loop that runs various classes. it looks like this: continue any in progress animations check for used input apply AI move things resolve events such as collisions draw it all to screen I have seen a lot of posts about how drawing should be running separately as fast as it can, possibly in another thread. My problem is that if the drawing runs as fast as it, can what happens if it tried to draw while I'm still applying the AI or resolving a collision? It could draw the wrong thing on screen. This seems to be a well established idea so there must be an explanation to this problem as I just cant get my head around it. The only solution I have is to update the screen so fast that any errors like that get refreshed before we see them but that sounds hacky. So how does this work / how would you implement it so that they are in sync but running at different speeds?

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• HP dv2700 series, Wifi not working in Ubuntu 12.10, Wifi Button always disabled

  - by Chicoscience

  I have a HP dv2745se laptop. I always had Ubuntu with the Native Windows Vista and Wifi worked fine. Suddenly my Ubuntu wouldn't load anymore, I tried fixing it for a week and eventually I formatted its partition and just installed Ubuntu 12.10 This laptop has a Wifi switch that works fine in Vista disabling / enabling the wireless connection. HP Wireless Assistant in Windows say Wireless is on. However, whenever I log in Ubuntu the Wifi button is always orange (disabled) and Wireless never works. I had this problem once when I had Ubuntu 12.04 and I fixed it by verifying in Windows that the Wireless Assistant showed the Wireless LAN in "On" mode. However, the same does not work now. I've seen some possible solutions that involve updating the firmware with apt-get. There comes my 2nd problem, my network adapter card is not working and thus I have no internet at all. Any suggestions? Thanks!

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• IIS 6 nested virtual directory redirection

  - by threedaysatsea

  We're running IIS 6 on a WinServer2k3 box and we're having some trouble with the following problem: E-mails were sent out to users asking them to go to the following URL: alias.contoso.com/directory2/view.aspx?queryparam1=no&queryparam2=blue However, the URLS are actually supposed to be: server.contoso.com/directory2/view.aspx?queryparam1=no&queryparam2=blue It's too late to recall all of the e-mails, and we'd like to redirect traffic to make this as seamless as possible for our users. The real problem here is that the server (server.contoso.com) is hosting the alias (alias.contoso.com) as a redirect thusly, and the existing redirect we need to keep functional: Default Web Site (server.contoso.com) --Directory1 --Directory2 --Directory3 Redirection to Directory3 (alias.contoso.com) --Essentially alias.contoso.com will take the user to server.contoso.com/Directory3 Is there any way to host a separate redirect inside of the existing redirect? We need to keep alias.contoso.com taking the user to server.contoso.com/Directory3 but also make alias.contoso.com/directory2/view.aspx?queryparam1=no&queryparam2=blue point to server.contoso.com/directory2/view.aspx?queryparam1=no&queryparam2=blue Any tips? Is this even possible?

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• How do you verify that your prototype/application meets the requirements?

  - by Roflcoptr

  Recently I wrote an small prototype that uses some relatively new technology. Now I wanted to verify if this prototype is usefull and could be used in real world example. But now I have a problem, how can I do that? Normally, it would be a good thing to compare the prototype with already existing similar applications and compare if you perform better, provide better usability, etc. Since I'm not aware of something similar, this is quite difficult Normally, I would see if the requirements of the customers are met. But there aren't any real requirements and no real customers. It as just an idea. So the problem is, how can I get feedback on my prototype to see how it is accepted by potential users and what should be improved in a real implementation?

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• failure to upgrade to 13.10 on ASUS 1015E-DS03

  - by user211270

  How should I proceed? On my last step to reach 13.10, after the download and installation and removal of unwanted packages, and after the reboot, I received this message: Sorry, a problem occurred while installing software. Package: i915-dkms The details revealed: Package i915-dkms 0.1 [origin: unknown] Problem Type Package Title i915-dkms 0.1: i915 kernel modele failed to build ApportVersion 2.12.5-0ubuntu2.1 Architecture amd64 DKMSBuildLog DKMSKernelVersion 3.11.0-12-generic Date Sun Nov 3 19:49:38 2013 Dependencies DistributionChannelDescriptor This is a distribution channel descriptor For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-annan-standard-precise-amd64-20130106-0 DistroRelease Ubuntu 13.10 InstallationDate Installed on 2013-01-24 (283 days ago) Thanks for any help, Bob Pendleton

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• Marching squares: Finding multiple contours within one source field?

  - by TravisG

  Principally, this is a follow-up-question to a problem from a few weeks ago, even though this is about the algorithm in general without application to my actual problem. The algorithm basically searches through all lines in the picture, starting from the top left of it, until it finds a pixel that is a border. In pseudo-C++: int start = 0; for(int i=0; i<amount_of_pixels; ++i) { if(pixels[i] == border) { start = i; break; } } When it finds one, it starts the marching squares algorithm and finds the contour to whatever object the pixel belongs to. Let's say I have something like this: Where everything except the color white is a border. And have found the contour points of the first blob: For the general algorithm it's over. It found a contour and has done its job. How can I move on to the other two blobs to find their contours as well?

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• Platformer Collision Error [closed]

  - by Connor

  I am currently working on a relatively simple platform game that has an odd bug.You start the game by falling onto the ground (you spawn a few blocks above the ground), but when you land your feet get stuck INSIDE the world and you can't move until you jump. Here's what I mean: The player's feet are a few pixels below the ground level. However, this problem only occurs in 3 places throughout the map and only in those 3 select places. I'm assuming that the problem lies within my collision detection code but I'm not entirely sure, as I don't get an error when it happens. public boolean isCollidingWithBlock(Point pt1, Point pt2) { //Checks x for(int x = (int) (this.x / Tile.tileSize); x < (int) (this.x / Tile.tileSize + 4); x++) { //Checks y for(int y = (int) (this.y / Tile.tileSize); y < (int) (this.y / Tile.tileSize + 4); y++) { if(x >= 0 && y >= 0 && x < Component.dungeon.block.length && y < Component.dungeon.block[0].length) { //If the block is not air if(Component.dungeon.block[x][y].id != Tile.air) { //If the player is in contact with point one or two on the block if(Component.dungeon.block[x][y].contains(pt1) || Component.dungeon.block[x][y].contains(pt2)) { //Checks for specific blocks if(Component.dungeon.block[x][y].id == Tile.portalBlock) { Component.isLevelDone = true; } if(Component.dungeon.block[x][y].id == Tile.spike) { Health.health -= 1; Component.isJumping = true; if(Health.health == 0) { Component.isDead = true; } } return true; } } } } } return false; } What I'm asking is how I would fix the problem. I've looked over my code for quite a while and I'm not sure what's wrong with it. Also, if there's a more efficient way to do my collision checking then please let me know! I hope that is enough information, if it's not just tell me what you need and I'll be sure to add it. Thank you! [EDIT] Jump code: if(!isJumping && !isCollidingWithBlock(new Point((int) x + 2, (int) (y + height)), new Point((int) (x + width + 2), (int) (y + height)))) { y += fallSpeed; //sY is the screen's Y. The game is a side-scroller Component.sY += fallSpeed; } else { if(Component.isJumping) { isJumping = true; } } if(isJumping) { if(!isCollidingWithBlock(new Point((int) x + 2, (int) y), new Point((int) (x + width + 2), (int) y))) { if(jumpCount >= jumpHeight) { isJumping = false; jumpCount = 0; } else { y -= jumpSpeed; Component.sY -= jumpSpeed; jumpCount += 1; } } else { isJumping = false; jumpCount = 0; } }

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• fingerprint-gui can not recognize my upek reader (147e:1002)

  - by ymfoi

  I've got a new laptop which is Lenove's E420s. And I have encountered a big problem that I can't make the fingerprint reader work properly. I've also tried fingerprint-gui. But unfortunately, it's told that "No Device Found". Here is my screenshot: http://ge.tt/98Xg2WD/v/0 It's said that 147e:1002 is supported by fingerprint-gui on the official website. So, I'm curious about the situation. Anybody knows? P.S: I'm using gentoo, but I think this problem may not have anything to do with distribution since I compiled the source from official site.

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• Jumping over non-stationary objects without problems ... 2-D platformer ... how could this be solved? [on hold]

  - by help bonafide pigeons

  You know this problem ... take Super Mario Bros. for example. When Mario/Luigi/etc. comes in proximity with a nearing pipe image an invisible boundary setter must prevent him from continuing forward movement. However, when you jump and move both x and y you are coordinately moving in two dimensions at an exact time. When nearing the pipe in mid-air as you are falling, i.e. implementation of gravity in the computer program "pulling" the image back down, and you do not want them to get "stuck" in both falling and moving. That problem is solved, but how about this one: The player controlling the ball object is attempting to jump and move rightwards over the non-stationary block that moves up and down. How could we measure its top and lower x+y components to determine the safest way for the ball to accurately either fall back down, or catch the ledge, or get pushed down under it, etc.?

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• Help with Dial Up

  - by iSeth

  I am trying to set up a computer for my friend that has dial up. The problem is nothing I try can detect the modem. GnomePPP can't find it and I can't figure Kppp out. I've been looking all over the net on my ethernet trying to find an answer but I keep getting routed back here. I have also tried using scanModem and it finds something like Conexant Systems, Inc. HCF 56k Data/Fax/Voice Modem but the rest of it is really confusing. I've also tried this but I'm not very terminal savvy and it didn't work. It seems like I have to compile a driver but I don't know which one or how to do it. I have also tried multiple modems. Any help would be appreciated. Thanks EDIT: scanModem thinks the modem is disabled on startup. EDIT: I reinstalled Ubuntu but the problem persists.

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• Errors with linux-image-3.8.0-36-generic and GRUB

  - by user285239

  OS: Ubuntu 12.04 LTS Problem 1: When installing anything (or updating) it always ends with this error: Errors were encountered while processing: linux-image-3.8.0-36-generic linux-image-3.8.0-38-generic linux-image-generic-lts-raring linux-generic-lts-raring Problem 2: When installing or updating stuff it opens some grub files and halts execution until I close these grub files. See screenshot below. Grub files + terminal window (screenshot) Pastebin with terminal output while trying to install something I should mention that I don't known if these two errors are related, but it is a fact that every time I try to install something or run an update both of the above errors pop up. I couldn't find anything of interest in the logs I looked at (probably because I don't know what/where to look), but tell me if you need me to upload something. Edit 02 june. This is the output from lsb_release -a kasper@ubuntuRW:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04.4 LTS Release: 12.04 Codename: precise

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• Message "Getting information" don't close

  - by William

  I have Windows 7 x64 I installed this software and I have a problem. I like Ubuntu but I feel the softwares related Linux often have problems. We each time need to seek to resolve the malfunctions. my problem is , I am getting a message as Getting information, please wait and it don't disappear. My firewall is completely deactivate and I already go to the UAC or the firewall to allow the "exe" of the Ubuntu One software in the settings. Nothing runs.Linux never run at the first time. I'm really disappointed and discouraged. Please help me. Thank you for your answers... Ps : I have Windows 7 64 bits

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• Move Camera Freely Around Object While Looking at It

  - by Alex_Hyzer_Kenoyer

  I've got a 3D model loaded (a planet) and I have a camera that I want to allow the user to move freely around it. I have no problem getting the camera to orbit the planet around either the x or y axis. My problem is when I try to move the camera on a different axis I have no idea how to go about doing it. I am using OpenGL on Android with the libGDX library. I want the camera to orbit the planet in the direction that the user swipes their finger on the screen.

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• Connecting a reliance zte AC2737 netconnect + modem

  - by coditor

  I have a Reliance netconnect+ zte Ac2737. It has an allocated data of 5gb per month. The modem works fine only after the allocated data is over, for which i have to pay extra to the provider. I tried contacting the provider, but it was not of much help. The system detects the modem every time. I assume that it must be a possible problem with the provider, so is there any chance it is the problem of Ubuntu 12.04 LTS 64 bit itself as i have no other reason to think otherwise an it works fine every time on windows.

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• How to test 3d acceleration?

  - by HappyDeveloper

  I want to install and test 3d acceleration in Ubuntu 12. I have read these pages: https://help.ubuntu.com/community/RadeonDriver https://wiki.ubuntu.com/X/Troubleshooting/VideoDriverDetection?action=show&redirect=X%2FTroubleshooting%2FFglrxInteferesWithRadeonDriver#Problem:_Need_to_purge_-fglrx I think I have installed it correctly, but I don't know how to test it. I tried to play minecraft in the browser, but I got a black screen. It may be a java problem too, so I need to troubleshoot. So how can I test my video card and drivers?

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• Ubuntu Software Center and Update Manager fail to open

  - by Giancarlo Palmiotti

  After attempting to install Google Chrome i386 the installation failed. I then proceeded to the AMD64 to see if it was the problem but...... My computer froze and I forced shut down. Now apport has a message saying An Error occurred please run Package Manager to fix the problem E:the package google-chrome-stable needs to be reinstalled but but i cant find an archive on it) This usually means your packages have unmet dependencies. Solution anyone PS:Update manager does not work and I don't have Snyaptic. The file itself failed at the real real end and froze everything but the cursor.

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• How to manually list set of urls for search engines to index

  - by MarutiB

  So I have created a video website which has thousands of videos and thousands of videos get added to it on a daily basis. Here is my problem :- I have created a website which basically loads the skeleton in html and puts all the content through javascript and Ajax. The problem is search engines aren't going anywhere except for the home page. Is there a way say in robots.txt where i give a link to a single html which has links to all these videos ? I agree my site is not accessible for a non-javascript user but stats show that this ratio is very low ( 0.2 % ). Is there a way I can still keep the complete AJAX website and still get each individual videos listed on google ?

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• How to get output from upstart jobs when logged in via SSH?

  - by Binarus

  Hi, at the moment, I am trying to learn upstart and can't get around a basic problem. To monitor what my job definitions are doing, I would like to see text output from the jobs. That does not seem to be possible when I am logged on via SSH. Currently, I am having this problem with Natty 11.04, but I am convinced that it is a more common one. Probably I just don't know about some important, yet very basic, fact. A simple job file I use (filename /etc/init/test.conf): description "test" start on test console owner kill timeout 5 task script /bin/echo Gotcha... end script My goal is to see the text "Gotcha..." when doing "initctl emit test" or "initctl start test". But that does not work. What I have tried so far: "console output" instead of "console owner" "exec /bin/echo Gotcha..." instead of script...end script I am grateful for any advice. Thank you very much, Binarus

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• Monitor flickering ATI

  - by Atzu

  I'm using ubuntu 12.10 on laptop samsung with randeon hd 6620g (APU A8), when I run amdcccle -version it says 2.18, not sure if that's the correct version. My problem is that I have and external monitor, AOC e2343Fsk and when I finally got it working at the resolution I want 1920x1080 it works fine for like 5minutes and then it starts flickering... I solved this on Windows (the exact same problem) with some options (I don't remember very well) I believe there were some buttons '+' and '-' on some vsync option I played with them on windows and Yay! got it working, but I don't see anything similar on this catalyst version (I used xorg-edgers ppa for installing fglrx). Thanks.

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• My desktop disappeared, how do I get it back?

  - by sunny

  I have Ubuntu 12.04 LTS. This morning when I logged into my Ubuntu, after login screen the complete desktop was empty, the only operation I could perform is right-click and open terminal. What I've tried: Ctrl+Alt+F1 unity --reset : didn't work From terminal unity --reset : didn't work And from login screen selecting Ubuntu 2D and that also didn't solve the problem. My laptop is Toshiba SA-60 onboard ATI graphic card with 1 GB RAM. Please tell me how to solve this problem. I don't want to reinstall Ubuntu as whenever I install a I/O error pops up, forget about that. I don't want to reinstall Ubuntu. Please help.

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• Check if the vector is behind another or maybe opposite directions?

  - by Gilson

  I'm doing a network game and on the client side, i interpolate the client position with the server sent extrapolated position. The client has its own physics simulation wich is corrected by the server in steps. The problem is when it laggs and i 'kick' the ball, the server gets a delayed message and sends me the position backwards of the client position wich makes the ball goes back and forth. I want to ignore those and maybe compensate that on the server, not sure though. The problem is the clock difference on those case are 0.07ms or 0.10 ms wich isn't that high to ignore the message i guess. When i get the server position, i extrapolate with the clock interval * serverBallVelocity Can i check if my new ball server position is behind my actual ball vector position? I tried to use the dot product after normalized the two vectors to check if they are opposite but it ain't working properly. Any suggestions on checking that?

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• Is there a way to publish IOS app from windows/Linux?

  - by user65760

  So I have been using Linux(especially, ubuntu) and windows(windows 7) for a long time . But i dont have a MAC, neither do i have an iphone. I do not actually want to buy them either . So the problem here is :how do i publish my app from windows or linux ? Kindly do understand i am not speaking about jailbroken programs(for jail broken i phones), i do not have any one near me who will lend me a MAC to publish my app . I started learning objective C some time ago. However, whenever i search the internet i get this information that there is no full proof way of publishing an app from windows or Linux . I also do intend to make it a paid app, meaning i dont wanna make it free. It will be very helpful if someone can suggest a way to overcome this problem .

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