Search Results

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

Page 334/2754 | < Previous Page | 330 331 332 333 334 335 336 337 338 339 340 341  | Next Page >

  • Why can't I install from software center?

    - by user64720
    There was a problem upgrading to Firefox 13. This error kept returning: /var/cache/apt/archives/firefox_13.0+build1-0ubuntu0.12.04.1_i386.deb W: Waited for dpkg --assert-multi-arch but was not there - dpkgGo (10: There are no "child" processes). Now it seems that there is some problem with dpkg and I can't install anything from software center. I already tried to clean previous packages with sudo rm /var/lib/apt/lists/* -vf and then sudo apt-get update, it didn't work. When running sudo dpkg --configure -a, I get this: dpkg: problems with dependencies prevent the configuration of firefox-globalmenu: firefox-globalmenu depends on firefox (= 13.0+build1-0ubuntu0.12.04.1); however: The package is not installed. dpkg: error while processing firefox-globalmenu (--configure): problems com dependencies - leaving unconfigured There has been found errors while processing: firefox-globalmenu What should I do to fix this?? EDIT: I don't have the necessary expertise to understand why what I did worked and what was causing the conflict, but anyway, since there was a problem with firefox-globalmenu:, I went to synaptics package manager, I removed this particular package and reinstalled it. After that, I was able to install Firefox from synaptics and also any other applications from software center. However, still there was a problem, when running sudo apt-get update, the following kept returning: Failed to get gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_precise_main_binary-i386_Packages Verification code hash doesn't match. E: Some archives index failed at being downloaded. They have been ignored, or older copies are used instead. So I typed sudo rm /var/lib/apt/lists/* -vf in terminal and then again sudo apt-get update and everything is fine now. I did this before an answer was posted, anyway I agree the problem was that particular package and its removal. So I'll mark the below answer as accepted.

    Read the article

  • Ubuntu stuck, goes black and comes to login screen

    - by Iury Simões
    I'm using normally the ubuntu, version: ~$ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=13.10 DISTRIB_CODENAME=saucy DISTRIB_DESCRIPTION="Ubuntu 13.10" And so, for no reason, the screen goes black and come back to login screen. This not happen on login screen, like login screen infinite loop problem. I get the login and use it normally then suddenly the screen goes black. I was using Ubuntu 14 and for this problem I formatted and installed Ubuntu 13, but the problem remains.

    Read the article

  • How can I diagnose/debug "maximum number of clients reached" X errors?

    - by jmtd
    Hi, I'm hitting a problem whereby X prevents processes from creating windows, uttering something like the following into ~/.xsession-errors: cannot open display: :0.0 Maximum number of clients reached Searching around there are lots of examples of people facing this problem, and sometimes people identify which program they are running is using up all the client slots. See e.g. LP 70872 (Firefox), LP 263211 (gnome-screensaver). For what it's worth, I run gnome-terminal, thunderbird, chromium-browser, empathy, tomboy and virtualbox nearly all the time, on top of the normal stuff you get with the GNOME desktop, and occasionally some other bits and pieces. However my question is not "which of my programs is causing this problem" but rather, how can one go about diagnosing this problem? In the above (and other) bugs, forum reports, etc., a number of tools are suggested: xlsclients - lists the client applications for the given display, but I don't think that corresponds to 'X clients' xrestop - a top-style X resources tool, one row per X client. Lots of '' clients, not shown in xlsclients output xwininfo -root -children lists X window objects From what I can gather, the problem might not be too many clients at all, but rather resources kept around in the X server for clients who have long-since detached. But it would also appear that you cannot (easily?) relate X resources back to their client. Can one effectively diagnose this issue once it has started to occur, or is a tedious divide-and-conquer approach for the apps I run the only approach open to me? Update Jan 2011: I think I have resolved this issue. For the benefit of anyone stumbling across this, nautilus and/or compiz or something in that chain of software was segfaulting due to a wallpaper I had. I had chosen an XML file as my wallpaper, which defined a rotating gallery of images. It was hand-made, but based on /usr/share/backgrounds/contest/background-1.xml or similar. Disabling the wallpaper and I have not had a crash since. I'm not marking this as answered yet, since the actual specific problem was not my question, but how to diagnose it was. Unfortunately this was mostly trial-and-error which sucks.

    Read the article

  • Locomotion-system with irregular IK

    - by htaunay
    Im having some trouble with locomtions (Unity3D asset) IK feet placement. I wouldn't call it "very bad", but it definitely isn't as smooth as the Locomotion System Examples. The strangest behavior (that is probably linked to the problem) are the rendered foot markers that "guess" where the characters next step will be. In the demo, they are smooth and stable. However, in my project, they keep flickering, as if Locomotion changed its "guess" every frame, and sometimes, the automatic defined step is too close to the previous step, or sometimes, too distant, creating a very irregular pattern. The configuration is (apparently)Identical to the human example in the demo, so I guessing the problem is my model and/or animation. Problem is, I can't figure out was it is =S Has anyone experienced the same problem? I uploaded a video of the bug to help interpreting the issue (excuse the HORRIBLE quality, I was in a hurry).

    Read the article

  • recent unreliable wireless connection on 10.04 and 10.10

    - by gabkdlly
    Recently, my internet connection over wireless has become unreliable, on both a Dell laptop running Ubuntu 10.04 as well as my Desktop running Ubuntu 10.10 . The problem does not seem to occur on a laptop running Windows Vista. The problem does not seem to occur on my Openmoko Freerunner ( running Android 1.5 ), though I hardly ever use this device to connect over WLAN, so the problem may have just slipped by. This problem does not seem to appear when I boot into Ubuntu 9.10 from a live CD ( more precisely, I was able to ping fu-berlin.de for an hour without any packet loss ). Under Ubuntu 10.10, I am experiencing about 33% packet loss. On my main Ubuntu Desktop, I have tried the following wireless devices: a Longshine PCI card ( an old device with an RTL8180L chip ) a D-Link DWL-510 PCI card ( this device threw warnings in dmesg ) a USB device from MSI ( US54EX ). Usually my wireless network shows up in the network manager with a normal signal strength, even when the connection speed is slow ( which happens often ) or the connection gets reset ( asking me to click connect to re-authenticate my wireless connection ). I have observed this problem with a Netgear KWGR614 Router ( with the manufacturers firmware ), as well as with a TP-LINK TL-WR741ND router running OpenWrt. Taking a look at my routers logs, I find many instances of the following line: Tuesday,04 Jan 2011 03:53:01 [TCP SYN Flood][Deny access policy matched, dropping packet] I know that the Netgear router is susceptible to denial of service attacks, as I have previously been able to disrupt its operation by putting an nmap scan into a while loop. I use WEP on the Netgear router and WPA on the TP-LINK to encrypt the wireless connections. Is it possible that someone is jamming my signal ?

    Read the article

  • Floating point undesirable in highly critical code?

    - by Kirt Undercoffer
    Question 11 in the Software Quality section of "IEEE Computer Society Real-World Software Engineering Problems", Naveda, Seidman, lists fp computation as undesirable because "the accuracy of the computations cannot be guaranteed". This is in the context of computing acceleration for an emergency braking system for a high speed train. This thinking seems to be invoking possible errors in small differences between measurements of a moving object but small differences at slow speeds aren't a problem (or shouldn't be), small differences between two measurements at high speed are irrelevant - can there be a problem with small roundoff errors during deceleration for an emergency braking system? This problem has been observed with airplane braking systems resulting in hydroplaning but could this actually happen in the context of a high speed train? The concern about fp errors seems to not be well-founded in this context. Any insight? The fp is used for acceleration so perhaps the concern is inching over a speed limit? But fp should be just fine if they use a double in whatever implementation language. The actual problem in the text states: During the inspection of the code for the emergency braking system of a new high speed train (a highly critical, real-time application), the review team identifies several characteristics of the code. Which of these characteristics are generally viewed as undesirable? The code contains three recursive functions (well that one is obvious). The computation of acceleration uses floating point arithmetic. All other computations use integer arithmetic. The code contains one linked list that uses dynamic memory allocation (second obvious problem). All inputs are checked to determine that they are within expected bounds before they are used.

    Read the article

  • Ubuntu does not recognize my built-in monitor.

    - by B3tturTh3nU
    I've recently discovered of a boot problem Ubuntu has with my laptop. I have successfully installed Ubuntu on two other computers, and I've never experienced this problem. What happens is, after the live boot CD loads, the screen goes completely blank. Although, I suspected that there was no problem booting, so I loaded with BIOS only, which worked perfectly fine. Of course, not being very proficient with this, I have no idea what needs to be done to fix the problem. I have switchable graphics cards(the ATI Mobility Radeon HD 5650, and some low-end Intel card), and an Intel i5 quad core processor. I was booting with the Ubuntu 10.10 64 bit desktop distribution. If there's any more information you need from me, please let me know. EDIT: I was able to look into this a bit more, thanks to one of the comments provided, and I have some new information. Ubuntu does seem to be able to recognize both of my graphics cards. The problem I found was that, in the Xorg.0 log, it mentions that there were "no screens found." I'm using a notebook, so the screen is built in. Does anyone know of a way to get Ubuntu to recognize the monitor?

    Read the article

  • Problems syncing photos and strange effects of uploaded files from other devices

    - by Daniel
    I have a Galaxy Spica (GT-i5700) Android v2.1, rooted with Leshak dev 7 #123. But never mind the root info, the problem would be the same unrooted. The photos from this phone is stored in "sdcard/images", nevertheless the phone also creates a "sdcard/DCIM" but only stores some thumbnails there. Problem nr 1: U1 only reads the DCIM-folder for automatic photo-upload. So photos stored in this phone is not uploaded. If I move photos to "DCIM" folder, U1 recognises the photos and start uploading them. Possible solution: Could there be an option in the settings, to set preferred photo folder? Problem nr 2: Out of 74 pictures, 12 did not get uploaded. Pressing "Retry failed transfers" in Settings does nothing. Pressing the files where status is "Upload failed, tap to retry" only changes the status to "Uploading..." but nothing gets uploaded. If I upload another file to U1, it is uploaded directly without any problem. It has nothing to do with file size, 1,1 MB files has been uploaded fine whilst some failed are 0,8 MB. Problem nr 3: The photos from DCIM are in my case uploaded to a folder called "Pictures - GT-I5700" in U1. If I log in to the homepage and from there upload another photo in "Pictures - GT-I5700", it shows up in U1 on my phone fine. But when I tap it, U1 downloads the photo to "sdcard/U1/Pictures - GT-I5700". If it sync photos from "sdcard/DCIM" to a specific folder, why not also download files to the same folder from which it is synced? After a while of usage, syncing and uploading files from different clients it would be a mishmash of folders and places files are stored and considering that I see no use of U1 at all. Another question: If my SD card in some way breaks down/some folders cannot be read/card temporarly changed and U1 is running, does U1 consider that as files deleted and also delete from the cloud?

    Read the article

  • Apache on Windows random long wait times

    - by Jaxbot
    I have a development machine with Apache installed as a service on Windows. The installation is fresh out of the box, with no changes to configuration aside from adding the PHP module. From day one, I've had a problem that looks like this: Essentially, Apache is freezing for about 11 seconds before replying on random requests. This appears to happen more frequently when the host hasn't been connected to in a while, but this is not always the case. I've eliminated MySQL, PHP, and the specific application; this long wait problem will occur even when loading a static file such as favicon.ico. Thus, the only factor remaining is Apache, which is freezing for consistently around 10-11 seconds before replying. The problem is not the DNS problem that many people point to; as you can see, the DNS lookup is instant, and the problem occurs both on localhost and 127.0.0.1. Thanks for the time.

    Read the article

  • Computer sending data while turned of

    - by Nicklas Ansman
    I have a some what strange problem (which could have and easy and obvious solution for all I know). My problem is that when I've booted ubuntu (now 10.4 but same problem with 9.10) and turns it off it starts sending a HUGE amount of data via the ethernet cable, so much in fact that my router can't handle it and stops responding. As far as I can tell the computer is completely turned off with no fans spinning. I can add that if I boot windows I do not have this problem, just when exiting ubuntu. There are two "fixes" for my problem: Pull the ethernet cable until the next boot Turn off power to the PSU and wait for the capacitors to unload Is there anyone who knows what could be going on? I'd be happy to post some logs or conf-files. Currently I'm using the ethernet port on my motherboard which is a Asus P6T Deluxe V2 with an updated version of the BIOS (maybe not the latest but since it only happens when I've been in ubuntu I don't wanna mess with the BIOS too much). Regards Nicklas

    Read the article

  • Gateway m-1625 laptop keeps shutting down

    - by Jerome
    I have a gateway m-1625 laptop. The specs are: 3gig DDR2 ram, amd turino*2 processor 2Ghz, 250gig HD, windows 7 ultimate. After installing unbuntu 11.10 and using it for about an hour my laptop starts shutting down most times before even reaching the log on screen. I have re installed it twice but the problem still persist. I had this same problem with ubuntu 11.04. I have been using ubuntu for the last 5 years and never had this problem before. Windows 7, vista and fedora runs fine, it just ubuntu that gives any sort of issue. What could be causing this problem? has something critical been changed since the 10.10 version? I really love ubuntu and i want to be able to run it again

    Read the article

  • Bluetooth is not working in Ubuntu 12.04

    - by Sudipta Sasmal
    I am Sudipta, using Sony Vaio laptop and I have installed Ubuntu 12.04. My bluetooth is not working. Neither it can search any device nor the opposite. I generally use bluetooth modem (mobile phone) for Internet in home but unable to do this. Please help me to solve the problem. I have seen many posts regarding this problem and tried all possible solutions but those could not solve the problem. Thanks

    Read the article

  • Ubuntu One isn't syncing in Windows 7

    - by tuxtu
    Ubuntu One was working just fine in friend's computer on Windows 7. Problem is that, suddenly it has stopped syncing. I want to share some observation regarding this problem. Hope this could be helpful to solve the problem. If I upload any file directly on web (using browser), the amount of file size (KB/GB) changed in both places, Web dashboard and Ubuntu One control panel on Windows 7, but I can't find the file on PC. "File sync in progress" hangs on the U1 control panel on windows for indefinite time. If I keep any file in the U1 synced folder, that's not available on the PC and the total amount of file size isn't changed anywhere. "File sync in progress" dialogue is always there, since the starting of the PC. User using the PC with administrative previlage. Hope this problem will be solved quickly.

    Read the article

  • No sound for headphones

    - by Joel Lino
    I was trying some of the solutions published in this forum for the same problem, but just one in particular work for me: add the line of code in the file alsa-base.conf. This just works for a few days, now the problem is back again. Any solution to fix this problem for good? Compaq Presario CQ40 $ lspci | grep -i audio 00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA) 01:05.1 Audio device: ATI Technologies Inc RS780 Azalia controller

    Read the article

  • Tools to diagnose Ubuntu problems

    - by Luis Alvarado
    Over time a user will have several problems with Ubuntu as any other OS in the world. What tools and terminal commands exist in Ubuntu to help diagnose how the problem occurred and help solve it if it can be done. Problems like: Ubuntu Freezes after X time or when using Y app Ubuntu rebooted/hibernated/suspended all by itself Ubuntu not showing video or video has problems Ubuntu not making any sound or sound has problems Ubuntu not reading X drive (Pen drive, Internal Drive, External Drive...) Ubuntu slow Ubuntu not working with X hardware when connected Ubuntu network problem Normally there is a couple of GUI tools or Terminal commands that Ubuntu experts typically mention first to use to do a first diagnosis of this. What GUI tools (in case the problem is not related to video or limits the user from using the GUI) and Terminal commands (In case GUI is not working) can a user use to diagnose and help himself to how to find/fix the problem.

    Read the article

  • HP Pavillion laptop screen problems

    - by Liealais Vards Nekas
    Approximately after 4 days when I installed my Ubuntu 10.10 an interesting problem with my laptop screen starts. I had similar problem what you can see in this video - http://www.youtube.com/watch?v=jCYVfGVGWyY&feature=related - but it doesn't happen all the time. The most interesting thing is that, than I had that problem only when I turn my laptop screen in different angle. And this "bad" angle changes by the time, so after about 15 minutes after booting computer I can turn laptop screen in normal position. This is software or hardware problem? I'm using HP Pavillion dv9000.

    Read the article

  • Erratic typing in Ubuntu 13.04

    - by spencerrecneps
    I recently upgraded to 13.04 and have noticed that my keyboard randomly drops keystrokes. Furthermore, it will occasionally cause the last pressed key to "stick", leaving me with "typng that looks lik thisssssssssssssssssssssss". I do not believe that this is a hardware problem, as the keyboard worked just fine under 12.10 a few days ago. In addition, there are no Universal Settings turned on that would be causing this problem. I came across this unanswered Ask Ubuntu post that seems to identify part of my problem: Missing keystrokes in ubuntu 13.04 I was able to work around the repeated keystrokes problem by turning off the "key presses repeat when key is held down" option under the keyboard settings, but this is not an acceptable solution in the long term. Any thoughts?

    Read the article

  • How do I prevent software packages from being downloaded until I know it's safe?

    - by Dave M G
    Recently, an update that caused a problem with Gnome session caused me to lose a day's work. The solution was to rollback some packages to a previous version. The update manager is now telling me that my old packages should be updated: ... but I don't want to do that until I know that whatever bug or problem the latest version has is resolved. I understand that with any upgrade that there is a risk of instability. However, in the 8 years or more that I've been on Ubuntu, using the latest releases has been stable enough and with the benefit of the latest features and security. So, I'm not looking for general advice on how to handle upgrades. What I'm saying is that in this one particular instance, the bug introduced by these upgrades is severe and time wasting. But, as an end user, when I encounter a problem like this, I have no idea how to address a specific concern about a specific package. I don't, for example, know which of these packages is the problem, and I can't take time from my work schedule to be experimenting with each package. So, my question is: How do I find out who exactly is responsible for these, or any, packages so that I can contact them and let them know about the problem? How do I freeze these packages only, but allow other upgrades to happen? ubuntu-session gnome-session-common gnome-session-bin gnome-session

    Read the article

  • Algorithm to generate N random numbers between A and B which sum up to X

    - by Shaamaan
    This problem seemed like something which should be solvable with but a few lines of code. Unfortunately, once I actually started to write the thing, I've realized it's not as simple as it sounds. What I need is a set of X random numbers, each of which is between A and B and they all add up to X. The exact variables for the problem I'm facing seem to be even simpler: I need 5 numbers, between -1 and 1 (note: these are decimal numbers), which add up to 1. My initial "few lines of code, should be easy" approach was to randomize 4 numbers between -1 and 1 (which is simple enough), and then make the last one 1-(sum of previous numbers). This quickly proved wrong, as the last number could just as well be larger than 1 or smaller than -1. What would be the best way to approach this problem? PS. Just for reference: I'm using C#, but I don't think it matters. I'm actually having trouble creating a good enough solution for the problem in my head.

    Read the article

  • Outlook is trying to retrieve data from Microsoft Exchange

    - by Adrian Baker
    Some of my users on my network keep getting a pop up message saying "Outlook is trying to retrieve data from Microsoft Exchange". Microsoft Office 2003 is installed on these computers and when this message appears it freezes every users outlook. I have read some articles, and they say it a problem with 2002 and 2003 version of outlook. So I have changed some users Office to MS Office 2007 but still I have the same problem. This is become a big problem as it is happening often and users are getting annoyed. If anyone can give me some advise on how to solve this problem and what could be causing this problem I would be most grateful.

    Read the article

  • my mouse blinks!

    - by Jeffrey
    hello I'm new in linux systems and I have the same problem in every distro... the thing is that my mouse every time i move it or do anything with it blinks!!! I think it's a xorg problem or a driver problem and the only way it does not do that is when i start with the low-resolution error using a xorg.conf from another graphic chipset and i think that isn't the best choise xDD please if you can help me I have a ati rage 128, thanks a lot for your help people n.n

    Read the article

  • ubuntu 10.10 maverick Zentyal . do anyone know where i can find its ? / download and install its ?

    - by santosamaru
    I want to installing Zentyal , do anyone know about the maverick version ? cause i got the news , that saying webmin is not available anymore and i have problem with its so that is why i try to change the webmin into Zentyal , but the problem is as i can find the version that they have is For Ubuntu 10.04 (Lucid) mine was ubuntu 10.10 maverick. i have problem with speed connections, that is why i need Zentyal so its will help me to build the squid to cache the webpage so its will help to make faster , lol, please your idea bout problem ,this, thanks.

    Read the article

  • Why can't a device connect through a wireless after router restart?

    - by Kalmar
    My laptop with lubuntu 12.04 used to connect to the wifi. But after the router (Cisco E4200) was restarted I cannot connect anymore through wireless connection. (No problem using a cable.) The network is hidden and secured by WPA/WPA2 Personal, I am the only person having this problem, so I guess it's somewhere on my side. What could cause such a problem, how to diagnose it and finally how to fix it?

    Read the article

  • Forti VPN Client not connecting to a server under Ubuntu 14.04

    - by deonis
    I've just updated to a new version of Ubuntu (14.04 86x64) and I got a very strange problem with Forti VPN Client. It seems running smoothly, but when I try to connect via GUI or terminal it hangs at the connection stage. here is what I see in terminal: STATUS::Setting up the tunnel STATUS::Connecting... #and this takes forever I know that it's not the problem with the server, the client works no problem on windows. Thank in advance ...

    Read the article

  • Ubuntu 11.10 USB 3.0 HDD

    - by Chazm
    I have a problem with my external HDD (WD My Book Essential 1TB) working on USB 3.0 port. I'm using dual boot setup with Windows 7 and Ubuntu 11.10, both 64 bit. While I'm running Windows and rebooting back to Windows everything works well. When I'm switchin to ubuntu everything works great as well. But after 1st reboot from ubuntu neither windows nor ubuntu mount the external drive. I have to reboot the device manually. I suspect that the problem is with unmounting the device on shutdown on ubuntu. The case concern only usb 3.0. When i plug the same device into usb 2 port the problem doesn't persist. Does any1 hit the same problem or have a clue what might goin wrong?

    Read the article

< Previous Page | 330 331 332 333 334 335 336 337 338 339 340 341  | Next Page >