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• Wireless drops on HP ENVY dv6 with RT3290 wireless, worked without problem prior to upgrading to Ubuntu 13.10, can it be fixed?

  - by Tim

  I have a HP ENVY dv6 Notebook PC with an AMD A10 quad core and RT3290 wireless. Since I upgraded from Ubuntu 13.04 to 13.10, the wireless connects, but then drops after a few minutes or longer, whether or not I am running openconnect to get through a VPN. If I attempt to run a remote X client (e.g. remote xterm) it drops. If I don't run an X client, it disconnects after a while, requiring a reload of the driver and reconnect. Wireless info... sudo lshw -c network *-network description: Wireless interface product: RT3290 Wireless 802.11n 1T/1R PCIe vendor: Ralink corp. physical id: 0 bus info: pci@0000:02:00.0 logical name: wlan0 version: 00 serial: 68:94:23:a7:09:cb width: 32 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=rt2800pci driverversion=3.11.0-12-generic firmware=0.37 ip=192.168.1.115 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn resources: irq:55 memory:f0210000-f021ffff I have successfully built and installed the MediaTek driver with no luck on connecting, then the system hangs on reboot and I have to recover/undo the changes to boot successfully.

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• Cleaning a dataset of song data - what sort of problem is this?

  - by Rob Lourens

  I have a set of data about songs. Each entry is a line of text which includes the artist name, song title, and some extra text. Some entries are only "extra text". My goal is to resolve as many of these as possible to songs on Spotify using their web API. My strategy so far has been to search for the entry via the API - if there are no results, apply a transformation such as "remove all text between ( )" and search again. I have a list of heuristics and I've had reasonable success with this but as the code gets more and more convoluted I keep thinking there must be a more generic and consistent way. I don't know where to look - any suggestions for what to try, topics to study, buzzwords to google?

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• how can i fix this problem with mount volume in ubuntu 10.10?

  - by Ali Unlu

  I have two operating system: ubuntu 10.10 and windows 7 ultimate. I trisected my HDD.One of these is for main Windows files,one of this for ubuntu system and the last drive which must be accessible on both of two system is for common files (musics, films, etc). This last partition is J: in Windows. Unfortunately when I was setting up ubuntu 10.10 while disk partition, I forgot mount my J drive as /windows and accidentally mounted it as swap . Then, I tried to do this visible in ubuntu.But I couldn't myself. Device : /dev/sda4 and whenever I try to do this I always get this error : Error mounting: mount exited with exit code 1: helper failed with: mount: according to mtab, none is already mounted on none mount failed

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• How to solve this problem starting new Opera-windows on dual monitor-setup?

  - by Mnementh

  I use Opera and have a setup with two monitors. If I want to open a new URL opera -newwindow URL. The outcome differs, if I execute this command in a program on the same screen where Opera is, or on the other. On the same screen everything is fine. I get the message opera: Activated running instance and the new window with the URL is opened. On the other screen, I get a dialog with the following message: It appears another opera instance is using the same configuration directory because its lock file is active: /home/(my name)/.opera/lock and the URL is not shown. That's not only from console, also if I click a link in E-Mail or so. How can I fix this? Window-manager is awesome, if it does make a difference.

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• Problem installing LibreOffice; please help!

  - by EmmyS

  I followed the instructions for installing LibreOffice found here, which are basically the same instructions found all over askubuntu and the web in general. I followed the instructions (including removing OO first) for gnome; all that is in my Applications menu now is LibreOffice (OO used to have OpenOffice Spreadsheet, OpenOffice Presentation, etc.) When I open LibreOffice, I get the splash screen/menu, but all of the choices for creating new docs are greyed out. It also will not open any office/type files (no errors; they just don't open.) The terminal commands indicated that installation was successful, but obviously something is missing. I'm guessing I can just reinstall OO from the software center, but I'd really like to give LibreOffice a try, given the lack of ongoing development on OO. Can anyone help me out?

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• Black bars around screen? Catalyst Control Center problem?

  - by Josh B

  I just newly install Ubuntu 12.04, and im running an HDMI cable from my computer to my ASUS monitor. Now in Windows 7, i did not have these black bar issues running at 1080p. But now in Ubuntu, i have these black bars. I installed the ATI Catalyst Control Center, and I went to go in to fix the scaling but it is grayed out. As you can see, even with the override box checked i still can not set the scaling. The monitor was set to a lower resolution to hopefully fix it but that did not work either. Does anyone know how to fix this? Thanks.

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• Problem running the python code for backup on Ubuntu?

  - by Akash

  I was trying to run following python code through terminal but something is wrong as it is producing some errors source = ['/home/akash/', '/home/akash/code'] target_dir = '/media' target = target_dir + os.sep + time.strftime('%Y%m%d%H%M%S') + '.zip' zip_command = "zip -qr {0} {1}".format(target, ' '.join(source)) if os.system(zip_command) == 0: print('Successful backup to', target) else: print('Backup FAILED') but when i try to run it following error appears zip I/O error: Permission denied zip error: Could not create output file (/media/20131019083404.zip) Backup FAILED

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• Problem animating in Unity/Orthello 2D. Can't move gameObject

  - by Nelson Gregório

  I have a enemy npc that moves left and right in a corridor. It's animated with 2 sprites using Orthello 2D Framework. If I untick the animation's play on start and looping, the npc moves correctly. If I turn it on, the npc tries to move but is pulled back to his starting position again and again because of the animation loop. If I turn looping off during runtime, the npc moves correctly again. What did I do wrong? Here's the npc code if needed. using UnityEngine; using System.Collections; public class Enemies : MonoBehaviour { private Vector2 movement; public float moveSpeed = 200; public bool started = true; public bool blockedRight = false; public bool blockedLeft = false; public GameObject BorderL; public GameObject BorderR; void Update () { if (gameObject.transform.position.x < BorderL.transform.position.x) { started = false; blockedRight = false; blockedLeft = true; } if (gameObject.transform.position.x > BorderR.transform.position.x) { started = false; blockedLeft = false; blockedRight = true; } if(started) { movement = new Vector2(1, 0f); movement *= Time.deltaTime*moveSpeed; gameObject.transform.Translate(movement.x,movement.y, 0f); } if(!blockedRight && !started && blockedLeft) { movement = new Vector2(1, 0f); movement *= Time.deltaTime*moveSpeed; gameObject.transform.Translate(movement.x,movement.y, 0f); } if(!blockedLeft && !started && blockedRight) { movement = new Vector2(-1, 0f); movement *= Time.deltaTime*moveSpeed; gameObject.transform.Translate(movement.x,movement.y, 0f); } } }

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• FTP Connection established...Connection timed out problem with all my sites and FTP programs?

  - by janoChen

  Just few hours ago FileZilla was working fine. Then, suddenly I started to get this error: Status: Resolving address of ftp.readtypechinese.com Status: Connecting to 69.175.14.60:21... Status: Connection established, waiting for welcome message... Error: Connection timed out Error: Could not connect to server And it happens with all my sites: Status: Resolving address of edasich.dreamhost.com Status: Connecting to 173.236.223.223:21... Status: Connection established, waiting for welcome message... Error: Connection timed out Error: Could not connect to server I'm using FileZilla 3.5.0 and Ubuntu 11.10. Any suggestions to fix this? (I already tried Passive mode and it doesn't work). EDIT: Ocasionally, the log goes beyond the ...waiting for welcome message: Status: Connection established, waiting for welcome message... Response: 220 DreamHost FTP Server Command: USER aleche23 Error: Connection timed out Error: Could not connect to server But the connection gets timed out again. Weird...I just realized that I have the same problems with other FTP programs too: gFTP: Looking up ftp.readtypechinese.com Trying readtypechinese.com:21 Connected to readtypechinese.com:21 220 ProFTPD 1.3.2 Server (server) [69.175.14.60] USER [email protected] Connection to ftp.readtypechinese.com timed out

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• What is the best approach to solve a factory method problem which has to be an instance?

  - by Iago

  I have to add new funcionality in a web service legacy project and I'm thinking what is the best approach for a concrete situation. The web service is simple: It receives a XML file, unmarshalling, generates response's objects, marshalling and finally it sends the response as a XML file. For every XML files received, the web service always responds with the same XML structure. What I have to do is to generate a different XML file according to the XML received. So I have a controller class which has all marshalling/unmarshalling operations, but this controller class has to be an instance. Depending on XML received I need some marshalling methods or others. Trying to make few changes on legacy source, what is the best approach? My first approach was to do a factory method pattern with the controller class, but this class has to be an instance. I want to keep, as far as it goes, this structure: classController.doMarshalling(); I think this one is a bit smelly: if(XMLReceived.isTypeOne()) classController.doMarshallingOne(); else if(XMLReceived.isTypeTwo()) classController.doMarshallingTwo(); else if(XMLReceived.isTypeThree()) classController.doMarshallingThree(); else if ... I hope my question is well understood

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• 12.04 Unity 3D 80% CPU load with Compiz

  - by user39288

  EDIT : I have been able to to determine that the problem is not compiz, but is actually Xorg. I don't know why, but by quickly maximizing terminal and taking a screenshot with top running before the problem went away I am able to see xorg takes up 72% of cpu, with bamfdaemon taking up 18%, and compiz taking up 14%. Seems the nvidia drivers are to blame, will play more with settings and perhaps do a clean nvidia-current install to try to fix the problem. Having a very annoying problem with high CPU usage. Running 12.04 with latest drivers and nvidia-current installed. Have not had any issues for days, now I have a strange problem. Unity 3d runs great most of the time, 1-2% CPU usage with only transmission running in background. Windows open and close smoothly. However,no matter what programs are open, if I minimize all open programs to the unity bar on the left, my CPU jumps to about 80% and slows down all maximize and minimize effects. Mouse movement stays smooth the whole time, but unity becomes unresponsive for up to 30 seconds at times. Hitting alt + tab to bring up even a single window fixes the problem. The window I bring back up doesn't even have to be maximized to solve the problem. Hitting the super button to bring up the dash makes CPU drop back to idle until I close it, then high CPU usage resumes. Believe the problem is compiz, but even just having only terminal running "top", I have to minimize it to the tray for the problem to show, so I can't see the problem process. I can only tell about the high CPU usage using indicator-sysmonitor. Even tried quitting the indicator, but I can still tell very poor performance with all applications when minimized. Reset compiz back to defaults, tried going to the post-release update nvidia drivers, played with vsync settings in both the nvidia settings and compiz. Even forced refresh rate, but cannot solve the problem. The problem does NOT occur in Unity 2D. Specs are core 2 duo 2.0ghz, 4GB ddr2 ram, 2x 320's HDD in RAID 0, and Nvidia GTX 260M graphics card.

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• HP 6735s Brightness hotkey problem; where is brightness panel?

  - by Paul

  I have installed ubuntu 11.10 on my laptop hp 6735s. The screen is often too dark and i want to make it brighter, although the hotkeys Fn+F7/F8 are not working. I have tried some things: Firstly it appears that sometimes they are in fact working, after reboot they either work and continue to do so or they don't. I've read about a brightness applet; but where can i find or install it? I have tried some grub options; acpi_osi=Linux and acpi_backlight=vendor but nothing changes. I don't want to add another question but since it might be related: my laptop also gets quite hot, i'm having doubts whether ubuntu connects to the available sensors and cooling plans (or how does it work???); sensors (or psensor) only shows 2 sensors both named temp1. Any help is greatly appreciated! Paul

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• Houston We have a Problem with Silverlight Client OM&hellip;

  - by MOSSLover

  So I was playing around with NavigationNodeCollection, which is basically like SPNavigationNodeCollection just to make sure it worked without a hitch…Here is a little sample snippet of what should work: Unfortunately, you get a nice little javascript error that does not allow you to access the child nodes.  I tried a foreach() loop that gets a NavigationNode for each parent then loops through the NavigationNode.Children that did not work either.  I threw in two ExecuteQueryAsync statements thinking that would help, unfortunately adding a second statement provides no different results.  This appears to be a bug in the Silverlight Client Object Model.  I reported the error.  Hopefully, we get a fix by RTM so that we can use the easier method to get items into Silverlight, otherwise it’s back to WCF and cross domain policies.  We all love cross domain policies right? Technorati Tags: Client Object Model,SharePoint 2010,Silverlight

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• How to add display resolution fo an LCD in Ubuntu 12.04? xrandr problem

  - by SeregaI

  I am fresh for Ubuntu and Linux in general. I have installed Ubuntu 12.04 and stuck trying to setup correct resolution for my LCD display. The native resolution for the LCD is 1920x1080 here is the output from xrandr: $xrandr Screen 0: minimum 320 x 200, current 1280 x 720, maximum 4096 x 4096 LVDS1 connected 1280x720+0+0 (normal left inverted right x axis y axis) 0mm x 0mm 1280x720 60.0*+ 800x600 60.3 56.2 640x480 59.9 VGA1 disconnected (normal left inverted right x axis y axis) Then I create new modeline: $ cvt 1920 1080 60 1920x1080 59.96 Hz (CVT 2.07M9) hsync: 67.16 kHz; pclk: 173.00 MHz Modeline "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync So far so good. then I create new mode using xrandr: $ xrandr --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync But for some reason that new mode was created for VGA (VGA1) output instead of LCD output (LVDS1): $ xrandr Screen 0: minimum 320 x 200, current 1280 x 720, maximum 4096 x 4096 LVDS1 connected 1280x720+0+0 (normal left inverted right x axis y axis) 0mm x 0mm 1280x720 60.0*+ 800x600 60.3 56.2 640x480 59.9 VGA1 disconnected (normal left inverted right x axis y axis) 1920x1080_60.00 (0xbc) 173.0MHz <---------- ????!!!!!! h: width 1920 start 2048 end 2248 total 2576 skew 0 clock 67.2KHz v: height 1080 start 1083 end 1088 total 1120 clock 60.0Hz So, if I try to add mode to LVDS1, I get an error: $ xrandr --addmode LVDS1 "1920x1080_60.00" X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 149 (RANDR) Minor opcode of failed request: 18 (RRAddOutputMode) Serial number of failed request: 25 Current serial number in output stream: 26 Adding that new mode to VGA1 works fine, but I don't use that VGA1 output.

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• 2d ball collision code problem XNA, over accelerated balls and stick together sometimes. help please? [closed]

  - by Sivan

  public static void Collision(Ball ball1, Ball ball2) { Vector3 x = new Vector3((ball1.BallPosition.X - ball2.BallPosition.X), (ball1.BallPosition.Y - ball2.BallPosition.Y), 0); x.Normalize(); Vector3 v1 = new Vector3(ball1.Speed, 0); float x1 = Vector3.Dot(x, v1); Vector3 v1x = x * x1; Vector3 v1y = v1 - v1x; x = -x; Vector3 v2 = new Vector3(ball2.Speed, 0); float x2 = Vector3.Dot(x, v2); Vector3 v2x = x * x2; Vector3 v2y = v2 - v2x; float m1 = 12, m2 = 4; float combinedMass = m1 + m2; Vector3 newVelA = (v1x * ((m1 - m2) / combinedMass)) + (v2x * ((2f * m2) / combinedMass)) + v1y; Vector3 newVelB = (v1x * ((2f * m1) / combinedMass)) + (v2x * ((m2 - m1) / combinedMass)) + v2y; ball1.Speed = new Vector2(newVelA.X, newVelA.Y); ball2.Speed = new Vector2(newVelB.X,newVelB.Y ); }

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• Network? or router? problem

  - by Robert H Mercer

  I have two computers networked through a Netgear WG914 router which is connected to an Ipstar satellite modem via the RG47 LAN connector. The main computer is running Windows 7 Pro 64bit and the secondary computer is running Windows 7 Home Edition 32bit. On occasion there is a loss of internet connection usually on the main computer, often followed by a loss on the secondary comuter. Not, however, always the case. Windows troubleshooter, naturally, is about as much use as a politician in government.......NONE. There appears to be no problem with the ISP bad as it is and often the connection will be remade without any help from me. The difference in the OS's is not of any relevance since I had this problem before I changed over to Windows 7. Not being a nerd when it comes to networking I wonder if anyone has any constructive suggestions.

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• The clock problem - to if or not to if?

  - by trejder

  Let's say, we have a simple digital clock. To "power" it, we use a routine executed every second. We update seconds part in it. But, what about minutes and hours part? What is better / more professional / offers better performance: Ignore all checking and update hour, minute and seconds part each time, every second. Use if + a variable for checking, if 60 (or 3600) seconds passed and update minute / hour part only at that precise moments. This leads us to a question, what is better -- unnecessary drawings (first approach) or extra ifs? I've just spotted a Javascript digital clock, one of millions similar on one of billions pages. And I noticed that all three parts (hours, minutes and seconds) are updated every second, though first changes its value only once per 3600 seconds and second once per 60 seconds. I'm not to experienced developer, so I might me wrong. But everything, what I've learnt up until now, tells me, that if are far better then executing drawing / refreshing sequences only to draw the same content.

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• deleted /opt directory from linux machine , is there any reboot problem for machone?

  - by mayur

  deleted /opt directory from linux machine , is there any reboot problem for machone?

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• Is it really a security problem to have non secure assets on an ssl page?

  - by blockhead

  My understanding is that this is just an example of being overly cautious, but if my checkout form contains an unsecure asset on it, that doesn't endanger anybody's credit card numbers from being caught by a man-in-the-middle. I'm asking this because every once in while, maybe because of cached content or whatnot, somebody writes in saying that they are seeing this "error" (even though there are no unsecure assets on my page), but they want an explanation. So yes, I can tell all about encryption and certificates and trust and men-in-the-middle. But what do I tell them about this. How do I convince them that the site is 100% safe (and if it isn't let me know that I'm mistaken!)

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• What is the actual problem with a prototype based design?

  - by WindScar

  I feel like anything that can be developed using OO/functional languages can be generally made 'better' using a prototype based language, because they appaer to have the best of them all: high order functions, flexibility to simulate any OO structure, productivity (low verbosity) and scalability because of concurrency. But it seems like they are avoided for the creation of executable applications and of bigger projects in general. Why that?

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• SharePoint Search Problem: The start address sps3://server cannot be crawled.

  - by Clara Oscura

  With this post, I'm going to start a series on problems I have encountered with SharePoint search. Error: The start address sps3://luapp105 cannot be crawled. Context: Application 'Search_Service_Application', Catalog 'Portal_Content' Details:  Access is denied. Verify that either the Default Content Access Account has access to this repository, or add a crawl rule to crawl this repository. If the repository being crawled is a SharePoint repository, verify that the account you are using has "Full Read" permissions on the SharePoint Web Application being crawled.   (0x80041205) (Event ID: 14, Task Category: Gatherer) Solution: give appropriate permissions to User Profile Synchronisation Service http://social.technet.microsoft.com/Forums/en-US/sharepoint2010setup/thread/64cdf879-f01e-4595-bc52-15975fefd18d http://www.dotnetmafia.com/blogs/dotnettipoftheday/archive/2010/03/29/how-to-set-up-people-search-in-sharepoint-2010.aspx

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• I can not install Ubuntu 14.04 due to some problem?

  - by user285643

  I have installed Window 8.1 on my HP laptop.Now I want to install Ubuntu 14.04,I try to use "Wubi" but when I use it, after installation on window, when my computer restart i have a message "No root file system is defined" I have read some thread here and i got some solution. One of them are "I must format my partition again, using ext4 format and mount on it". I did it by using Gparted in Try Ubuntu mode, but I got another message "/dev/sda contains GPT signatures,indicating that it has a GPT table. However, it does not have a valid fake msdos partition table,as it should. Perhaps it was corrupted--possibly by a program that does not understand GPT partition table. Or perhaps you deleted the GPT table, and are now using msdos partition table. Is this a GPT partition table?"

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• Can't Boot Ubuntu, video drivers or x-server problem?

  - by ZacharyH

  I was uninstalling some programs that I installed to try and get my iPod touch working with Ubuntu (I gave up on that) when ubuntu just crashed. Now after I choose ubuntu in GRUB, it gives me a screen that says "Ubuntu is running in low-graphics mode: your screen, graphics card, and input device settings could not be detected correctly. You will need to configure these yourself" It was working just fine before I started to uninstall those programs. I think that I might have uninstalled something necessary to the system. If I click OK on the screen, it gives me options to reconfigure, troubleshoot, exit to console, or restart X. But no matter what I choose I still can't boot into ubuntu - I get stuck looking at the splash screen which stalls forever. I was receiving support from one of my mate's and he was doing something with the LiveCD, and now the message doesn't pop up any more, I just get stuck at a never ending splash screen. Any help would be appreciated, thanks!

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• SharePoint Search Problem: The crawler could not communicate with the server.

  - by Clara Oscura

  This one was not easy to solve ... Error: The crawler could not communicate with the server. Check that the server is available and that the firewall access is configured. Context: Some pages were not crawled (giving the above error) and, what is worse, all the sub content of that site was not crawled either! (the pages were the homepages of the site) Solution:The pages that could not be crawled due to this error contained a custom web part. This web part used default credentials for a given action. During crawling, the SP_Search account tried to perform this action but did not have the appropriate rights. This gave an error that stopped the crawling for the whole site. This blog helped me: http://patricklamber.blogspot.com/2010/04/why-might-moss-crawler-not-working.html

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• Problem in multi booting Ubuntu 12.04 with existing Windows XP, 7 and 8 in 500GB HDD with 5 Partitions

  - by Dhruva

  Here's my case. I have 500GB HDD with 5 Partitions with XP, Windows7 and Windows8 RP in the first three. As per one of the instruction I've seen in this forum, I did shrink my 4th Partition to create a 30GB unallocated free space to install Ubuntu 12.04. But, when next I'm trying to boot the Ubuntu CD and choosing "Something Else", its only recognizing my 500GB HDD in whole as "/sda" and not reading the free 30GB space separately to install Ubuntu in it as suggested in the instruction mentioned in this forum. I've also tried to install in from within Windows7, by mounting the Ubuntu ISO file and using the .exe file and instruction thereupon (choosing free drive, user name, installation size, etc.), but that also failed after the PC restarted to continue the installation, showing as error for file extension, partition something error. One thing to be noted that the PC I'm trying to install Ubuntu in it is my Home PC and doesn't have any internet connection. Hence, no updates or otherwise online help. What shall I do?? Kindly suggest. Sorry if I made some grammatical mistakes as English is not my first language. Thanks in advance.

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