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• Broadcom 4313 doesn't work following 12.04 upgrade

  - by Lucas

  I have an hp G62-228Ca laptop with a BCM4313 previously running Ubuntu 11.10. I ran the 12.04 upgrade last night without much thought. Following the upgrade and mandatory reboot, the wireless card no longer shows up in the network manager, the first time I've had any kind of issues with wireless under Ubuntu. I've done much Googling on the issue but so far I haven't found a permanent solution. Mucking around with some packages though (I've installed five different ones or so), I've managed to devise a workaround that I must run every time I boot the laptop. I have to remove the Broadcom STA driver and reinstall it. Inspiration taken from here: WiFi does not work, Broadcom STA Wireless driver does not work on a BCM4313 After the second modprobe command, the wireless reappears in the network manager and ten seconds after that I'm back on the wifi. If anyone can provide some advice on how to fix this permanently I will be extremely grateful. I'd rather not roll back to 11.10 or reinstall, but I will if I need to. Just let me know if you need the output from any terminal commands. Thanks in advance!

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• Why is my USB data transfer so slow?

  - by Dave M G

  Whenever I do any kind of file transfer using USB, whether to a USB stick, or with my Android phone, or anything else, it is ridiculously slow. It says 59.8 KB/sec, which would be an awesome speed if this were 1991 and I was using a modem to dial up to my local BBS. Surely USB technology is better than that...? 37 seconds to move less data than the equivelent of 1 MP3 file? Also, regardless of what it says about speed and time, the reality is much, much slower. I routinely see it say something like "37 seconds left" and have to wait for minutes. Sometimes, if I want to move large amounts of files, it can say it will take 8 hours or more. Is this normal? My computer may not be the most awesome on the market, and about a year old, but it's an i5 with 4GB RAM and modern components, so surely this isn't the hardware's fault. What can I do to get better USB data transfer performance? Also, I did look at this question, but my newbie eyes don't see anything that look like an actual solution, just a lot of discussion about what transfer rates could or should be. Update: As requested in the comments, I've generated a whole bunch of output from the command line, and put it on Ubuntu Pastebin. Please see it here.

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• rewrite map (prg:) never finishes

  - by SooDesuNe

  using Apache and a prg type rewrite map. My map looks like: #!/usr/bin/perl $| = 1; # Turn off buffering while (<STDIN>) { print "someothersite.com"; } the rewrite rule declared in httpd.conf is: RewriteMap app_map prg:/file/path/test.pl RewriteRule (\/[\w]+)(\/[^\#\s]+)?$ http://${app_map:$1}$2 [P,L] And the log files show: init rewrite engine with requested uri /a/testlink.html applying pattern '(\/[\w]+)(\/[^\#\s]+)?$' to uri '/a/testlink.html' It appears like test.pl is never giving control back to apache, when the map is successfully found I expect to see this output in the log file: map lookup OK: map=app_map key=/a -> val=someothersite.com Why is my map not returning control back to apache?

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• How often do you look for code examples?

  - by Newly Insecure

  I am a comp sci student with several years of experience in C and C++, and for the last few years I've been constantly working with Java/Objective C doing app dev and now I have switched to web dev and am mainly focused on ruby on rails and I came to the realization that (as with app dev, really) I reference other code wayyyy too much. I constantly google functionality for lots of things I imagine I should be able to do from scratch and it's really cracked my confidence a bit. Basic fundamentals are not an issue, I hate to use this as an example but I can run through javabat in both java/python at a sprint - obviously not an accomplishment and but what I mean to say is I have a strong base for the fundamentals I think? I was wondering how often you guys reference other code and does it just boil down to a lack of memorization of intricate tasks on my part? I know what I need to use typically but reference syntax constantly. Would love some advice and input on this, as it has been holding me back pretty solidly in terms of looking for work in this field even though I'm finishing my degree. My main reason for asking is not really about employment, but more that I don't want to be the only guy at a hackathon not hammering out nonstop code and sitting there with 20 google/github tabs open, and I have refrained from attending any due to a slight lack of confidence... tl;dr: I google for code examples for basically ALL semi advanced/advanced functionality, how to fix this and do you do as well?

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• How to tell from what Ubuntu or Debian repository a package comes?

  - by gotgenes

  On a Debian-based system, including Ubuntu, how can one tell which repository a package will be downloaded from, without actually beginning the download? aptitude show and apt-cache info will show the section (e.g., metapackage, base, graphics), but not the repository to which a package belongs (e.g., http://ppa.launchpad.net/mactel-support/ppa/ubuntu or http://us.archive.ubuntu.com/ubuntu/). When installing the package, the actual repository appears during the download (it is printed out in the "downloading from ..." output from apt and similar programs), but how can one obtain information on the repository containing the package (or a specific version of a package) without downloading and installing it first? Additionally, how can one determine the source repository for a package that is already installed?

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• check two conditions in two different columns in excel and count the matches

  - by user1727103

  I've trying to create a Error Log to help me analyse my mistakes. So for simplicity, lets assume I have two columns "Type of Question" - with values SC,RC,CR and another column that indicates whether I got this question "right/wrong".Let's assume this is my table: Question No. | Right/Wrong | Question Type | Right | SC | Right | RC | Wrong | SC | Wrong | CR | Right | RC (Pardon my formatting skills). And I want an output table like this Type of Question | Right | Wrong | Total SC | 1 | 1 | 2 RC | 2 | 0 | 2 CR | 0 | 1 | 1 So basically what I want to do is check Column3 for SC using =COUNTIF(C1:C5,"SC"), and return the total number of SC questions, and then outta the SC , I need to find out which are Right.If I know the right and the total I can get the wrong. I have never written a macro so a formula based answer would suffice.

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• Good practice on Visual Studio Solutions

  - by JonWillis

  Hopefully a relativity simple question. I'm starting work on a new internal project to create tractability of repaired devices within the buildings. The database is stored remotely on a webserver, and will be accessed via web API (JSON output) and protected with OAuth. The front end GUI is being done in WPF, and the business code in C#. From this, I see the different layers Presentation/Application/Datastore. There will be code for managing all the authenticated calls to the API, class to represent entities (business objects), classes to construct the entities (business objects), parts for WPF GUI, parts of the WPF viewmodels, and so on. Is it best to create this in a single project, or split them into individual projects? In my heart I say it should be multiple projects. I have done it both ways previously, and found testing to be easier with a single project solution, however with multiple projects then recursive dependencies can crop up. Especially when classes have interfaces to make it easier to test, I've found things can become awkward.

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• What is the value of checking in failing unit tests?

  - by user20194

  While there are ways of keeping unit tests from being executed, what is the value of checking in failing unit tests? I will use a simple example: Case Sensitivity. The current code is case sensitive. A valid input into the method is "Cat" and it would return an enum of Animal.Cat. However, the desired functionality of the method should not be case sensitive. So if the method described was passed "cat" it could possibly return something like Animal.Null instead of Animal.Cat and the unit test would fail. Though a simple code change would make this work, a more complex issue may take weeks to fix, but identifying the bug with a unit test could be a less complex task. The application currently being analyzed has 4 years of code that "works". However, recent discussions regarding unit tests have found flaws in the code. Some just need explicit implementation documentation (ex. case sensitive or not), or code that does not execute the bug based on how it is currently called. But unit tests can be created executing specific scenarios that will cause the bug to be seen and are valid inputs. What is the value of checking in unit tests that exercise the bug until someone can get around to fixing the code? Should this unit test be flagged with ignore, priority, category etc, to determine whether a build was successful based on tests executed? Eventually the unit test should be created to execute the code once someone fixes it. On one hand it shows that identified bugs have not been fixed. On the other, there could be hundreds of failed unit tests showing up in the logs and weeding through the ones that should fail vs. failures due to a code check-in would be difficult to find.

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• Apply email retention policy to Inbox but not subfolders?

  - by NaOH

  Our official email policy states that email older than 90 days in the Inbox is moved to Deleted Items, not including subfolders of the Inbox. This wasn't a problem to implement in Exchange 2003. In 2010, however, it appears that Policy Tags applied to the Inbox also apply to its subfolders. How can I prevent this from occuring? EDIT: Here is the output of Get-RetentionPolicy: RunspaceId : b6a05d43-3e56-4348-9d0e-2d2bf7e6c283 RetentionId : 56417b54-af3b-4c14-bd3c-9dcf9bdd133e RetentionPolicyTagLinks : {Junk E-mail - 7 Days, Deleted Items - 7 Days, Sent Items - 90 Days, Inbox - 90 Days} AdminDisplayName : ExchangeVersion : 1.0 (0.0.0.0) Name : Default Company Policy DistinguishedName : CN=Default Company Policy,CN=Retention Policies Container,CN=Company,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=domain,DC=com Identity : Default Company Policy Guid : 56417b54-af3b-4c14-bd3c-9dcf9bdd133e ObjectCategory : domain.com/Configuration/Schema/ms-Exch-Mailbox-Recipient-Template ObjectClass : {top, msExchRecipientTemplate, msExchMailboxRecipientTemplate} WhenChanged : 2/8/2013 2:18:11 PM WhenCreated : 2/8/2013 2:11:18 PM WhenChangedUTC : 2/8/2013 10:18:11 PM WhenCreatedUTC : 2/8/2013 10:11:18 PM OrganizationId : OriginatingServer : server.domain.com IsValid : True

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• Install multiport module on iptables

  - by tarteauxfraises

  I'am trying to install "fail2ban" on Cubidebian, a Debian port for Cubieboard (A raspberry like board). The following rule failed due to "-m multiport --dports ssh" options (It works, when i run manually the command without multiple options). $ iptables -I INPUT -p tcp -m multiport --dports ssh -j fail2ban-ssh" iptables: No chain/target/match by that name. When i make a cat on "/proc/net/ip_tables_matches", i see that multiport module is not loaded: $ cat /proc/net/ip_tables_matches u32 time string statistic state owner pkttype mac limit helper connmark mark ah icmp socket socket quota2 policy length iprange ttl hashlimit ecn udplite udp tcp What can i do to compile or to enable the multiport module? Thanks in advance for your help

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• Terminal, vim and ssh color problem

  - by xaph

  I'm using vim for my editor. I've problems about the colors of vim. The same colorscheme of vim gives different outputs in terminal, ssh session and screen. I learnt they've different colors(16, 88 or 256). I don't care of using 16 color or 256 color. Also the terminal emulator is not very important to me. My questions: 1- How do I use same vim colorscheme with same output on everywhere? 2- I want to write a color definition and use it every terminal(maybe with Xdefaults file). Is it possible?

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• Ubuntu 9.10 freezes when HDMI port is connected

  - by Felipe Hummel

  I have a Sony Vaio FW350 with a HDMI output. I'm trying to use it under Ubuntu 9.10 with a LG LCD monitor 21,5'. The laptop has a Intel 4500 video card. I've tried two approaches: Boot the laptop with the HDMI cable connected and monitor turned on. Result: LCD Monitor keeps turned on but the whole screen is black and Ubuntu do not seem to be initializing. Boot Ubuntu until the end. I then connect the HDMI cable into the Laptop. The mouse and the whole system freezes. In both cases the only way to turn off the laptop is holding the power button. I've looked around the internet for similar problems, but only found workarounds for the same problem with VGA input, not HDMI. I also tried to use metacity before connecting the cable, but still got the same result. Any hints?

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• What software can I use to get statistics about the programs I use most? [closed]

  - by pinouchon

  I am looking for software that reports statistics about my program usage over time. It should display output something like this (numbers are made up): Program usage today: Youtube (Chrome) 42:10 9.42% NetBeans 30:52 6.33% Google search (Chrome) 12:03 3.20% Windows explorer 5:43 1.54% Putty 2:23 0.89% ? ? ? Features I look for: Advanced statistics: ability to view a chart, to see statistics today, this week, this month. Program usage should be based on the title of the active window. The time where the user is idle shouldn't count. Ability to group some windows title together, for example, I want to group titles as Stack Overflow and * - Stack Overflow together, same thing for every website and explorer windows. Do you know a program that does something similar?

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• MacMini giving "no signal" when using the television resolutions (480p, 720p, 1080i)

  - by chum of chance

  I have a Mac Mini (10.6) with a DVI out to my 720p television. It shows the options for 480p, 720p and 1080i with a little television next to the icons, along with the stand resolutions like 1024x768. The standard resolutions work fine with overscan checked, but I can't get any of the native television resolutions to work. I only get a "no signal" on my television. The input on the television is marked with 1080i/720p/480p and yet only 480p (and the PC native resolutions like 1024x768) work. What's happening?

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• Real time audio streaming

  - by Josh K

  I have a remote computer running OS X. I would like to stream the audio from the microphone input over the network so I can listen to it. Primarily I want to do this because I'm out of the office but still need to communicate with people there. I would like to use VLC, but am not fully aware of the options available. I tried SoundFly (as recommended by another answer) but this didn't seem to want to connect. At this point I should note that I'm using a VPN network to connect to the remote computer (using Hamachi). I can open up ports / etc fine though, so I should be able to do this. Alright, I found Nicecase which does exactly what I want but I would prefer to not have to shell out $40 for it.

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• Why is the resulting file unplayable when I use FFMPEG to convert a MP4 video to ASF?

  - by Fuupoo

  I want to convert an .mp4 file to an .asf file, but I need to keep the size of the file below 150 mb (the server I need to upload the file to can only take files under 150 mb). Basically I want to recontain the .mp4 in an .asf file. The code I'm using currently is ffmpeg input.mp4 -c copy output.asf The command runs, however when I try to play the file on windows media player (I'm on windows xp) I get an error message saying "Windows media player has encountered a problem while playing the file." Anyone have any idea why this is happening? And what other ways I can accomplish this task?

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• "Tail" a logstash server query

  - by phatmanace

  Assuming I have a logstash server chocked full of logs being loaded regularly, is there a reasonably elegant way that I can tail the results of a continuously executing query on the logstash server and show this in a terminal window e.g some-special-logstash-command.sh | egrep -v "(searchword1|searchword2)" the idea being that the command pipes stuff out of logstash and to my grep query that filters and shows me the filtered output for. .. of course if there is a logstash command that can do the grep piece for me as well, then that works too :) motivation for doing this, is that assuming all of my events from my estate is being loaded into logstash, then would be nice to have a terminal window with a continuous tail of interesting events as they occur scrolling past the screen. -Ace

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• Finding throuput of CPU and Hardrive on Solaris

  - by Jim

  How do I find the throughput of a CPU and the hard disk on an OpenSolaris machine? Using mpstat or iostat? I'm having a hard time identifying the throughput if it is given at all in the commands output. For example, in mpstat there is very little explanation as to what the columns mean. I've been using the syscl column divided by time interval to find the throughput but to be honest I have no idea what a system call truly is. I'm trying to to analyze a hardrive and CPU while writing a file to the hardisk and when at rest.

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• Graphing/charting of CPU utilisation [on hold]

  - by Peter

  So nagios can be good at graphing particular resource utilisation or other metrics, but I'm looking for a tool that can output a chart or other graphical representation of how much CPU time/CPU utilisation /all/ services on a server are currently consuming. I think New Relic could probably achieve this to an extent, but I was wondering if there was a popular open source app used for this. In case I am explaining this in a bad way, my actual problem is that I have a shared server with suexec enabled (ie. httpd cgi running under multiple user accounts). I'd like to know which users are using the most CPU during periods of the day.

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• SQL Server: How to report error from a job's step of PowerShell type

  - by Ariel

  I have a SQL job whose step of 'PowerShell' type does 'exit 1' if encounters an error i.e. $ErrorActionPreference='stop'; trap{"$_"; exit 1} Problem is, SQL Server doesn't pay attention to that exit code, and reports "The step did not generate any output. Process Exit Code 0. The step succeeded." Any idea how to successfully tell SQL Server from a PowerShell step that something went wrong? Thanks in advance.

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• Javascript storing data

  - by user985482

  Hi I am a beginner web developer and am trying to build the interface of a simple e-commerce site as a personal project.The site has multiple pages with checkboxes.When someone checks an element it retrives the price of the element and stores it in a variable.But when I go to the next page and click on new checkboxes products the variable automaticly resets to its original state.How can I save the value of that variable in Javascript? This is the code I've writen using sessionStorage but it still dosen't work when I move to next page the value is reseted. How can I wright this code so that i dosen't reset on each page change.All pages on my website use the same script. $(document).ready(function(){ var total = 0; $('input.check').click(function(){ if($(this).attr('checked')){ var check = parseInt($(this).parent().children('span').text().substr(1 , 3)); total+=check; sessionStorage.var_name=0 + total; alert(sessionStorage.var_name); }else{ var uncheck = parseInt($(this).parent().children('span').text().substr(1 , 3)); total-=uncheck; } })

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• Designing object oriented programming

  - by Pota Onasys

  Basically, I want to make api calls using an SDK I am writing. I have the following classes: Car CarData (stores input values needed to create a car like model, make, etc) Basically to create a car I do the following: [Car carWithData: cardata onSuccess: successHandler onError: errorHandler] that basically is a factory method that creates instance of Car after making an API call request and populating the new Car class with the response and passes that instance to the successHandler. So "Car" has the above static method to create that car, but also has non-static methods to edit, delete cars (which would make edit, delete API calls to the server) So when the Car create static method passes a new car to the successHandler by doing the following: successHandler([[Car alloc] initWithDictionary: dictionary) The success handler can go ahead and use that new car to do the following: [car update: cardata] [car delete] considering the new car object now has an ID for each car that it can pass to the update and delete API calls. My questions: Do I need a cardata object to store user inputs or can I store them in the car object that would also later store the response from all of the api calls? How can I improve this model? With regards to CarData, note that there might be different inputs for the different API calls. So create function might need to know model, make, etc, but find function might need to know the number of items to find, the limit, the start id, etc.

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• Good speedtest results, but web pages don't load

  - by dmt0

  I have strange connection problems. Ping and download times are good - speedtest.net showed ping 65ms and download 2.17Mbps. Torrent is working well, giving me up to 300MBps. Webpages are loading very poorly though. They are timing out each time - I'd have to refresh 4-5 times to get any simple page to load. It has been happening consistently for the last few days. Same with different browsers on different machines (same network), Windows and Linux. There is no proxy in the browser. Is there any setting in Windows or in a browser that I can change to help this? Some background: I live on this island in Thailand, where internet connection is through radio to another island and than to mainland - it's very weather dependent, but generally OK. As I mentioned, ping is good. Any input is very appreciated.

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• Trouble installing gnome-shell-extensions-user-theme, dependency/PPA conflict?

  - by Drex

  I installed gnome tweak tool, and am trying to set up custom themes and whatnot. So, trying to install gnome-shell-extensions-user-theme. me@computer:~$ sudo apt-get install gnome-shell-extensions-user-theme [sudo] password for me: Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: gnome-shell-extensions-user-theme : Depends: gnome-shell-extensions-common but it is not going to be installed E: Unable to correct problems, you have held broken packages. Not going to be installed? Okay, let's see about that... me@computer:~$ sudo apt-get install gnome-shell-extensions-common Reading package lists... Done Building dependency tree Reading state information... Done gnome-shell-extensions-common is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Wait, what? Broken packages? Ruh Roh! Seems to me it might be a PPA contradiction problem or something, but I'm tired of trashing my installs. Kinda lost here. Any ideas? Output of sudo apt-get install -f drex@U110:~$ sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

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• State Changes in a Component Based Architecture [closed]

  - by Maxem

  I'm currently working on a game and using the naive component based architecture thingie (Entities are a bag of components, entity.Update() calls Update on each updateable component), while the addition of new features is really simple, it makes a few things really difficult: a) multithreading / currency b) networking c) unit testing. Multithreading / Concurrency is difficult because I basically have to do poor mans concurrency (running the entity updates in separate threads while locking only stuff that crashes (like lists) and ignoring the staleness of read state (some states are already updated, others aren't)) Networking: There are no explicit state changes that I could efficiently push over the net. Unit testing: All updates may or may not conflict, so automated testing is at least awkward. I was thinking about these issues a bit and would like your input on these changes / idea: Switch from the naive cba to a cba with sub systems that work on lists of components Make all state changes explicit Combine 1 and 2 :p Example world update: statePostProcessing.Wait() // ensure that post processing has finished Apply(postProcessedState) state = new StateBag() Concurrently( () => LifeCycleSubSystem.Update(state), // populates the state bag () => MovementSubSystem.Update(state), // populates the state bag .... }) statePostProcessing = Future(() => PostProcess(state)) statePostProcessing.Start() // Tick is finished, the post processing happens in the background So basically the changes are (consistently) based on the data for the last tick; the post processing can a) generate network packages and b) fix conflicts / remove useless changes (example: entity has been destroyed - ignore movement etc.). EDIT: To clarify the granularity of the state changes: If I save these post processed state bags and apply them to an empty world, I see exactly what has happened in the game these state bags originated from - "Free" replay capability. EDIT2: I guess I should have used the term Event instead of State Change and point out that I kind of want to use the Event Sourcing pattern

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