Search Results

Search found 68828 results on 2754 pages for 'knapsack problem'.

Page 448/2754 | < Previous Page | 444 445 446 447 448 449 450 451 452 453 454 455  | Next Page >

  • adding pls to rhythmbox

    - by tomasz74
    I try to add .pls radio station to rhythmbox. I download the file and I click musicimport file but nothing happen. I added one station before and it works fine but now it simply does not work. Also when I try to get from the file, click on open with rhythmbox I have the error: Couldn't start playback Problem occurred without error being set. This is a bug in Rhythmbox or GStreamer. I have all medibuntu installed and I have one radio station already playing. I don't know how to proceed from now and what should I check if there is something to fix. Anyone get similar problem? (Ubuntu 12.04 64-bit Gnome3)

    Read the article

  • Mic not working on Lenovo G470

    - by Caveman
    I used a Lenovo G470 laptop (Core i5 2410M processor, AMD Radeon 6370M and 2GB DDR3 RAM) and I installed Ubuntu 12.04. I can't get the microphone to work. I encountered this type of issue before in my old Acer Aspire One with Ubuntu 10.04/10.10, and installing PulseAudio Volume Control and tweaking a little solves the problem. I tried the same solution to no avail in 12.04. I tried entering the alsa in terminal and my mic is not detected there. Does anybody encountered a similar problem? Any help will be greatly appreciated.

    Read the article

  • How do I change local display resolution via SSH?

    - by krumble1
    I have a machine running Ubuntu Server 12.04 LTS and I'm having problems with the local monitor. The Dell flat panel I'm using only displays this message while the computer running: "Cannot Display This Video Mode" and then the information: "Optimum resolution 1280x1024 60Hz". I'm fairly new to using an operating system wholly via command line but I'm learning fast. :) I can access the server fine via SSH so using it is not a problem. However, for where it is positioned at the moment, it would be much more convenient to use the computer locally. I'm just wondering how to change the local screen resolution via SSH to something usable by my monitor. Thanks for your time! BTW: I have also tried switching displays and I still have the same problem. Also BTW: I tried putting in the xrandr command and all I get back is: Can't open display

    Read the article

  • EF Doesn't Like Same Named Tables

    - by Anthony Trudeau
    Originally posted on: http://geekswithblogs.net/tonyt/archive/2013/07/02/153327.aspxIt's another week and another restriction imposed by the Entity Framework (EF). Don't get me wrong. I like EF, but I don't like how it restricts you in different ways. At this point you may be asking yourself the question: how can you have more than one table with the same name?The answer is to have tables in different schemas. I do this to partition the data based on the area of concern. It allows security to be assigned conveniently. A lot of people don't use schemas. I love them. But this article isn't about schemas.In the situation I have two tables:Contact.PersonEmployee.PersonThe first contains the basic, more public information such as the name. The second contains mostly HR specific information. I then mapped these tables to two classes. I stuck to a Table per Class (TPC) mapping, because of problems I've had in the past implementing inheritance with EF. The following code gives you the basic contents of the classes.[Table("Person", Schema = "Employee")]public class Employee {   ...   public int PersonId { get; set; }   [ForeignKey("PersonId")]   public virtual Person Person { get; set; }}[Table("Person", Schema = "Contact")]public class Person {   [Key]   public int Id { get; set; }   ...}This seemingly simple scenario just doesn't work. The problem occurs when you try to add a Person to the DbContext. You get an InvalidOperationException with the following text:The entity types 'Employee' and 'Person' cannot share table 'People' because they are not in the same type hierarchy or do not have a valid one to one foreign key relationship with matching primary keys between them..This is interesting for a couple of reasons. First, there is no People table in my database. Second, I have used the SetInitializer method to stop a database from being created, so it shouldn't be thinking about new tables.The solution to my problem was to change the name of my Employee.Person table. I decided to name it Employee.Employee. It's not ideal, but it gets me past the EF limitation. I hope that this article will help someone else that has the same problem.

    Read the article

  • Enable permanent vertical and horizontal scroll bars

    - by Rolen Koh
    I am facing a problem and it is in Ubuntu (14.04) permanent scroll bar is not there but it appears when you move the mouse pointer to right most side or bottom most side. But it is very difficult to use and lately it takes too much to appear and sometimes it doesn't appear at all and so i have to close the application and reopen it. So i want to ask how to enable permanent scroll bars on right side and bottom most side. I am sure many people must have faced this problem before me. Thanks. P.S: By permanent i mean scroll bars should be visible all the time.

    Read the article

  • UI font has rendering glitches in GNOME Shell

    - by user353889
    I don't really know how to describe this problem in English. A picture can say more words - look at the tabs at the top of the linked image. The current font settings are shown as well. I don't know what basic info I should provide so if something missing, please tell me. Ubuntu 12.04 GNOME Shell 3.4.1 I know, a reboot can make everything normal but I'm looking for a more permanent solution that can fix this problem (or bug). Update Thanks for Fitoschido, I finally know what keyword I could use for googling. I think it's a bug of gnome shell. https://bugs.archlinux.org/task/34847

    Read the article

  • Drivers are not detecting on my Dell inspiron 5420 (14R 3rd generation)

    - by Ranjan Mallik
    I'm using DELL inspiron 5420 (14R 3rd generation), and tried to install ubuntu 10.10, 11.10, 12.04, 12.04.1 but each and every time it doesn't support any of my driver such as network card, wireless driver, video driver and as well as audio and touch-pad driver. audio, video and touch-pad works with their basic functionality but don't work with their full functionality. I'm a new user of ubuntu, and willing to use it permanently. In this condition I tried some solutions from the web but didn't get out from this problem. For this I'm knocking to you, If you give me the proper solution for getting out of this problem, I'll be very helpful to you all. Thanks

    Read the article

  • Ubuntu 12.04 wireless does not detect networks

    - by dudeitsdevin90
    I installed Ubuntu on a partition of my MacBook Pro. Wireless connections work fine when I switch to OSX, but the wireless networks are not even detected when I boot Ubuntu. I installed Wicd as a new network manager, but I'm still having the same problem. Ubuntu works on a wired connection though. I have searched the web for a solution... similar questions have been asked but I have not been able to find a way to fix this problem. Any help would be greatly appreciated.

    Read the article

  • There was an error getting information about "/" while copying to desktop

    - by user206320
    Currently running Ubuntu 13.10 after a fresh install/re install due to this problem. The error occurs whenever I try to drag a file from the Ubuntu search( in the launcher ), to the desktop. the whole error message is as follows... "Error while copying. There was an error getting information about “/”." Show more details reveals the following... "The specified location is not supported" I don't understand the problem and can't see any clear way of fixing it. Any and all advice would be appreciated. :)

    Read the article

  • How to properly document functionality in an agile project?

    - by RoboShop
    So recently, we've just finished the first phase of our project. We used agile with fortnightly sprints. And whilst the application turned out well, we're now turning our eyes on some of the maintenance tasks. One maintenance task is that all of our documentation appears in the form of specs. These specs describe 1 or more stories and generally are a body of work which a few devs could knock over in a week. For development, that works really well - every two weeks, the devs get handed a spec and it's a nice discrete chunk of work that they can just do. From a documentation point of view, this has become a mess. The problem with writing specs that are focused on delivering just-in-time requirements to developers is we haven't placed much emphasis on the big picture. Specs come from all different angles - it could be describing a standard function, it could describing parts of a workflow, it could be describing a particular screen... And now, we have business rules about our application scattered across 120 documents. Looking for any document for a particular business rule or function in particular is quite hard because you don't know which document has this information, and making a change request is equally hard because once again, we are unsure about which spec to make the change. So we have maybe a couple of weeks of lull before it's back to specing out functionality for the next phase but in this time, I'd like to re-visit our processes. I think the way we have worked so far in terms of delivering fortnightly specs works well. But we also need a way to manage our documentation so that our business rules for a given function / workflow are easy to locate / change. I have two ideas. One is we compile all of our specs into a series of master specs broken by a few broad functional areas. The specs describe the sprint, the master spec describe the system. The only problem I can see is 1) Our existing 120 specs are not all neatly defined into broad functional areas. Some will require breaking up, merging etc. which will take a lot of time. 2) We'll be writing specs and updating master specs in each new sprint. Seems like double the work, and then do the devs look at the spec or the master spec? My other suggestion is to concede that our documentation is too big of a mess, and manage that mess going forward. So we go through each spec, assign like keywords to it, and then when we want to search for a function, we search for that keyword. Problems I can see 1) Still the problem of business rules scattered everywhere, keywords just make it easier to find it. anyway, if anyone has any decent ideas or any experience to share about how best to manage documentation, would really appreciate it.

    Read the article

  • How to learn to translate real world problems to code?

    - by StudioWorks
    I'm kind of a beginner to Java and OOP and I didn't quite get the whole concept of seeing a real world problem and translating it to classes and code. For example, I was reading a book on UML and at the beginning the author takes the example of a tic tac toe game and says: "In this example, it's natural to see three classes: Board, Player and Position." Then, he creates the methods in each class and explains how they relate. What I can't understand is how he thought all this. So, where should I start to learn how to see a real world problem and then "translate" it into code?

    Read the article

  • grub-install dummy fails. this is a fatal error

    - by user287764
    I am new to this but I have watched many video how to dual boot Ubuntu with windows 8. I have HP pavilion g6 notebook with 4 GB RAM and Intel i5 processor. I am installing Ubuntu 13.10 with windows 8. In the process of installation I select something else then make some partion as mentioned here. /dev/sda6. 2048 mb of swap area /dev/sda7. 18 GB of / And then I click on install. When installation starts it stuck when grub is installing And message arose as grub install dummy fails. This is a fatal error. I have searched about this on Google many others have faced same problem but none of them helped me. I think the problem is of uefi system. Is there any way so I can dual boot Ubuntu with windows 8.

    Read the article

  • Keyboard activation bug

    - by Skydreamer
    I'm using Ubuntu's last version and there's still a little problem on my installation (already on previous versions). When I start the computer and reach the login screen, I have to wait about a minute to be able to begin to use my keyboard. That's not a real problem but that's kind of annoying. I've tried some things such as a lsusb via ssh and it worked and activated the keyboard without waiting. So I've tried to put it in the crontab (with @reboot) but it doesn't really work. Has someone got an idea how to solve this bug ? Thank you in advance.

    Read the article

  • Is there an opposite for the term "Backporting"?

    - by Avian00
    As I understand, the term "Backporting" is used to describe a fix which is applied in a future version which is also ported to a previous version. Wikipedia definition is as follows: Backporting is the action of taking a certain software modification (patch) and applying it to an older version of the software than it was initially created for. It forms part of the maintenance step in a software development process... For example: A problem is discovered and fixed in V2.0. The same fix is ported and applied to V1.5. What is the term when this is done in the opposite direction? The problem is discovered and fixed in V1.5. The same fix is ported and applied to V2.0. Would the term "Backporting" still apply? Or is there a term such as "Forwardporting" (which amusingly sounds a lot like "Port Forwarding")?

    Read the article

  • 12.04 - sound is laggy when running games through Wine

    - by orzechowskid
    Lenovo U400 Wine 1.5.5 Ubuntu 12.04 with all updates applied I'm experiencing severe (~500ms) audio lag in all games run in Wine. Portal 2, Half-Life, World of Goo, and Fallout are all exhibiting this problem. When I run winecfg though and click the "Test Sound" button at the bottom of the Audio tab, the sound effect appears to play immediately. So I'm not sure what's going on. I don't think it's a problem with PulseAudio by itself since totem videos and Youtube clips both play in perfect sync. Anyone have any ideas on where to start fixing this? thanks! (edit: I thought this was limited to Steam games but I installed a non-Steam game and I now see that's not the case. I get audio lag in other apps too.)

    Read the article

  • Icons don't display for some application launchers

    - by Smk
    I am running Ubuntu 12.04 on my laptop for some time now. Since the first day only I have been facing the problem with icon images of some application not appearing up. It causes a lot of inconvenience in locating/identifying an application to be launched. I have updated my Ubuntu with the latest build today only but still the problem persists. I have googled around and tried everything relevant available out there but with no success. Please note that reinstalling Ubuntu is NOT an option right now.

    Read the article

  • Lock screen elements frozen on desktop

    - by user286968
    I have finally made the switch from Windows to Ubuntu and now have to ask the first question because search did not help me this time. (Please help me in a newb-friendly way) The problem is easily described: The elements shown in the lockscreen on boot (ubuntu logo in the middle and watermark in bottom left corner) stay there even when I'm entering desktop. How can I remove them again? They haven't been there in the first place, but after updating Ubuntu with Update Center, the problem occured. As I cant post an image here with my reputation, pls see this link: http://s30.postimg.org/age8fraww/Screenshot_from_2014_05_30_23_27_58.jpg Thanks for your help and time. Kind regards

    Read the article

  • I can't get a native resolution of 1920x1080 on 11.10 (AOC f22 on a Nvidia Geforce GTS 450)

    - by Mikeeeee
    I have a problem were the highest resolution I can get is 1360x769, this is a 22 inch LCD monitor with a native resolution of 1920x1080_60 I have tried numerous drivers but nothing changed I tried editing the xorg.conf scipt with no success (I am a noob with linux though). Running many commands in terminal witch I got from people with similar problems only gives me errors like "Failed to get size of gamma for output default. I get edid checksum is invalid error on boot down also. I think there maybe a communication problem between my screens EDID and ubuntu although xp and windows 7 detect my screen without any errors and automatically set native resolution. also when I am installing ubuntu I get a horrible screen flashing every few seconds until I have installed the nvidia driver. pc specks if it helps x64 os, mainboard N68PV-GS, 4 gig ram, AMD Phenom(tm) 9350e Quad-Core Processor × 4, Nvidia Geforce gts450 512mb, hard drives set up in a onboard nvidia raid array striped. realy need to get a better resolution, 1360x769 does not look nice on a 22 inch screen. ty

    Read the article

  • Ubuntu 10.10 screen goes nuts and unreadable

    - by ChazD
    Running Ubuntu 10.10 in its own partition, also have Oracle Virtualbox 4 with Windows XP. Because i previously had a problem with a dark screen when i let the laptop on and i didn't use it for a long while i had set Power settings to Never sleep, never let the Display sleep. Monitor on install set to Laptop resolution 1400 by 1050, refresh rate 60 Hz, rotation Normal. The problem was when the computer was left on and i returned after about an hour, the screen was unreadable, similar to what used to happen to graphics cards before multisync became normal. So it appears as though the graphics card was asked to use a resolution it couldn't handle and went nuts. I had to power off the system, on restart everything was fine. Thanks for any suggestions. ChazD

    Read the article

  • Custom keyboard shortcuts are reset. How can I make them set permanently?

    - by Awi
    I'm having a problem with both Ubuntu 12.04 and 12.10 with custom keyboard shorcuts. They are reset after a while (I can't find a pattern but it seems to be when a massive upgrade happens). It happend to me a couple of days ago, when 12.10 got about 27 updates. I've searched launchapd and askubuntu, and found no question similar. My shortucts are not lost on reboot, I still can't find a pattern to identify the problem as I said. I tried also not using Control Center app, but gnome's dconf-editor, but same result as I found on some blog post. My question is, how can I save my custom shorcuts to restore them when this happens? Can somebody help me compose a bug for launchpad, like what package could be causing this, so I can fill a bug report. Thanks in advance.

    Read the article

  • Runescape - Ubuntu 12.04 - Jaggex cache folder

    - by user214179
    does anyone here know how to hide the jaggexcache folder, jagexappletviewer file and jagex_cl_runescape_LIVE file from the home folder? The problem is this, everytime you play runescape (in both windows or linux), it creates those files and folders. The problem is that on windows, you can hide them and everything is fine. On linux, if you add ( /.) to the folder or file to hide it, when you play runescape, those files and folders are again created, because they cannot be found. As far as I know, the game is Java based (needs java iced tea plug in and java 7), so is there any way of changing the directory where the game puts all those files? like home/documents instead of just /home thanks!

    Read the article

  • Relative Positions Of Player And Enemy Are Different In XNA 3D Game

    - by CoOlDud3
    I am having a problem in my 3D Jet Fighter Game using XNA. I have a Player Jet and a few enemy drones built from a separate class. The problem is that when I set Player position and a drone's position to a height 10f in y direction. They aren't at the same height. But if i move Drone's Position up 500f in the y direction then it is pretty much close to the player. Relatively They are supposedly at the same height but with different position values. Can Any One Help Please?

    Read the article

  • Mic not working when vga connector removed

    - by yygyt
    I have a computer that should run continuously without any connection to a monitor. For developmental purposes I have been keeping the vga connection with the monitor and experienced no problem until now. When I start the machine removing the vga connection beforehand, external microphone does not work. At first I didn't know anywhere to look and see the problem, but after a google search I saw that there is a command as alsamixer I ssh the machine end type alsamixer when it is connected to the monitor, here is the result If I remove monitor connection and reboot again, and then type alsamixer, I see the error, $ alsamixer cannot open mixer: No such file or directory I suspect that this error is related to X somehow. I really don't know anything about what goes beyond. This machine needs to work without any connection to a monitor. I would deeply appreciate any suggestions.

    Read the article

  • How do I know if I've gone too far with processing things in a game?

    - by ThePlan
    A common programming quote I see every day is: Premature optimization is the root of all evil! I admit I'm one of those guys that like to do premature optimization in a pretty obssessive manner but that's probably because I'm not aware how powerful modern processors are. I can think of lots of sollutions for a problem, but all of them are tough on the memory side, and I keep thinking "This will hurt me more in the future when I'll have to re-do it because it's bad performance-wise." How do you know when the code you are thinking of is going too far and is not a case of premature optimization? How much can your game handle at a time before performance becomes a problem?

    Read the article

  • Error 15 after manually installing Ubuntu 12.04 dualboot windows 7

    - by indraisme
    (this post contains as the same as my preceding post on Grub rescue problem after installing Ubuntu 12.04 LTS since I've post it on the wrong place) Thanks God I found this page. I'm a newby from Indonesia, and I have a laptop with 2 OSes (7 and Precise) installed. I have installed Ubuntu 12.04 manually by replacing Blankon 4.0's (an Ubuntu-based Indonesian distro) partition. I made /boot mountpoint and then chose it as the place for bootloading. As the result, I've been experiencing error 15 until now, and I have to boot my laptop from Paragon rescue kit every time I want to use it. Is there any way to solve the problem? Terima kasih (Thanks)

    Read the article

< Previous Page | 444 445 446 447 448 449 450 451 452 453 454 455  | Next Page >