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• PyQt design issues

  - by Falmarri

  I've been working on a my first real project using PyQt lately. I've done just a little bit of work in Qt for C++ but nothing more than just messing around. I've found that the Qt python bindings are essentially just a straight port of C++ classes into python, which makes sense. The issue is that this creates a lot of messy, unpythonic code. For example if you look at QAbstractItemModel, there's a lot of hoops you have to go through that forces you to hide the actual python. I was just wondering if there's any intention of writing a python implementation of Qt that isn't necessarily just a wrapper? Either by Nokia or anyone else? I really like Qt but I would love to be able to write more pythonic code. I hope this is OK to ask here. I'm not trying to start a GUI war or anything.

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• Internal mic not working on Aspire One D255

  - by user50652

  I can't get my internal mic to work with any app other than Sound Recorder. I've scoured the other posts on this topic and none seem to have an answer. I've installed Alsa Mixer, Pulse Audio controls, tried minimising one of the stereo channels but nothing works. The mic is not muted. There is no function key on the keyboard to mute the mic either. The only connector options are analogue mic or analgue input. Neither do anything.

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• Who should respond to collision: Unit or projectile?

  - by aleguna

  In an RTS if a projectile hits a unit. Who should handle the collision? If projectile handles the collision, it must be aware of all possible types of units, to know what damage to inflict. For example a bullet will likely kill a human, but it will do nothing to a tank. The same goes if unit handles a collision. So either way one of them should be aware of all possible types of the other. Of course the 'true' way would be to do full physics simulation, but that's not an option for an RTS with 1000s of units and projectiles... So what are the common practicies in this regards?

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• Atheros AR5BWB222 Wireless Intermittent Connectivity

  - by Bart

  So I recently installed Ubuntu on my Acer Aspire V3-551 laptop. I have an Atheros AR5BWB222 wireless adapter. Everything works fine except for the wireless. I can sometimes connect to the wireless, but most of the time it will be making an attempt to connect and then enver connect. Or it will connect, but it will only stay connected for about 10 seconds before getting disconnected from the wireless. All the other drivers updated through System SettingsAdditional Drivers are fine, even the Ethernet. Its just the problem with the wireless. I've tried a power managment setting, tried looking for additional updates, but nothing fixes my problem. Is there any solution for my particular wireless card?

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• Windows Forms Development - Books

  - by Scott

  So I'm reading a book for architecting applications for the enterprise from the Microsoft Press. It's a great book, and I'm learning a lot. However, it's very high level, and can be applied to a lot of different domains (not even just .NET, even though that's how the book is geared). The first project I want to develop after reading the book is a Windows Forms application in .NET 4.0. I want to use a lot of the books concepts to develop the app, but I really want a great Windows Forms dedicated book to read before starting that's really going to tell me all I need to know about developing Windows Forms apps. I found plenty of books for .NET 2.0 and stuff, but nothing for Windows Forms in the new .NET 4.0 Framework. Any suggestions?

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• How do I modify the noacpi option?

  - by Sagar Ratnakara Nikam

  I am new to ubuntu and have stared using it since a week. I installed ubuntu server 11.10 on a VM created using VMWare player. Once installed, i tried to install ubuntu desktop using sudo apt-get install --no-install-recommends ubuntu-desktop Now I am unable to boot and i get the following error *PulseAudio configured per-user session After this, nothing happens and the ubuntu server does not boot. I read in another Q&A, the same problem and the solution. Just Installed a CLI system then ubuntu-desktop, does not boot automatically My question is how to modify noacpi option. How do i get into the boot for the ubuntu server? I have read on the net that by hitting the shift button, we can get into the boot options. I tried that, but no success, probably since i am running ubuntu on VMWare Player. Please guide me on how to solve this problem

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• Cannot boot from Ubuntu USB

  - by Safi

  I create a ubuntu 10.10 bootable USB via the method that is described on the download page of ubuntu. I made that from windows and also from ubuntu 10.04 (I have dual boot). When I boot from the USB made, the menu shows and when I run it, it gives a beep and nothing else. It never boots. USB creation from both methods result the same. I downloaded ubuntu via the torrent provided from Ubuntu. Any help will be very appreciated. I want to make my USB just like a Live CD so that I can run it on some other computers also.

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• Ubuntu 12.04LTS loads straight to terminal!! startx doesn't work!

  - by user293256

  I have been using ubuntu 12.04LTS for last few months, and now suddenly something has happened to it. As a result, terminal opens on every start up when I login . Although, if i login as a guest, it works fine. I have already used startx command, and tried reinstalling the desktop as well but it doesn't work! If I use ctrl+alt+f9, terminal screen vanishes and a black screen appears, and then nothing happens after that. ctrl+alt+f1 takes me to the command prompt. I know similar questions have been asked here, but i could not find a solution for my laptop. Please help!!

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• How to reduce noise in Skype?

  - by tkc

  According to Alsamixer I do have a HDA Intel soundcard with Nvidia MCP77/78 HDMI chip (Realtek sound card on MSI notebook). When I use Skype under Ubuntu 12.04 for video calls, the other side hears background noise such as in Windows when you have your microphone boosted. In fact they can hear everything, even the fans turning on. There is nothing tweaked on Ubuntu's fresh installation. Also tried this site: https://code.launchpad.net/~ubuntu-audio-dev/+archive/alsa-daily/+packages , but there are no *.deb files that I can test if any fix the problem. The question is if there is a way to add/tweak something to enable on software level the noise cancellation like the Windows sound drivers have that option. I use my build in mic.

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• how to find 3g modem signal strength with out AT commands?

  - by neckTwi

  when i try to find signal strength of my modem using AT+CSQ, the usb device is locked by the network manager. To find the signal strength with AT+CSQ i have to first disable network connection using #nmcli nm wwan off to unlock the device inode /dev/ttyUSBX. Is there any nmcli option to get signal strength or any other option? EDIT The gdbus object for NetworkManager don't have any method like getSignalStrength. Network manager is locking device file preventing to use AT commands. nm-applet was able to display signal strength in system tray. so there should be a way to get signal strength form network manager! nmcli is command line counter part of nm-applet. Can i get signal strength using nmcli? nothing about signal strength is mentioned in its man pages.

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• Desktop background will not load after performing aticonfig --adapter=all --ovt=opengl

  - by user1571959

  I am trying to get Eagle to work on ubuntu 14.04 LTS. When I run Eagle and open a schematic the display is not refreshing/redrawing correctly. One solution that I found was to install the flgrx drivers and do the aticonfig command to use opengl... So I did and rebooted. Now when I turn on my laptop I get all the way to the login screen, login, and then nothing happens, it just goes to the background image with no icons or anything... I tried deleting and copying the original xorg.conf file and no results... What do I do other than reinstalling Ubuntu? is there anyway to force the original driver?

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• Application for google adsense rejected twice due to Unacceptable site content

  - by Bootcamp

  I have a technical blog site at techaxe.com . I put up technical articles over there quite frequently. I applied for google adsense an got my application rejected twice. The issue reported both times was Unacceptable site content. I read the content policy by google and found nothing that would indicate that the content i have on my blog is unacceptable to them. Can some one please guide me as to what should be done so that i can get my adsense application accepted.

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• Apt Configuration problem

  - by Paul

  I am trying to load v11.04 onto my HP desktop hard drive using a USB drive. I used the same USB drive to load the system on my Dell netbook and it loaded successfully. But trying to load on the desktop I get the error " Apt configuration problem. An attempt to configure apt to install additional packages from the CD failed" The installer then crashes. I have nothing in the CD drive. I can boot the system from the USB drive and it works fine. I have tried all options on the load with the same crash each time. I baffled as I successfully loaded my netbook with the same USB with no problems.

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• Systray Icons missing after App Crash

  - by pr0ndigy

  After installing Alarm Clock (alarm-clock) from the Software Center, the program immediately crashed and made the icons in my systray disapear except for Power, Sound, Time/Date, and the Gear. I tried logging off, rebooting, removing the program, and nothing has brought my icons back. I know they are still running up there, because i got Skype setup to autostart and it had an icon up there running before i installed the Alarm Clock program. Is there anything i can do to get my icons back, or do i need to reinstall the OS? I'm running Ubuntu 14.04.1 btw...

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• Configuration of LDAP client on 12.04

  - by user106515

  We have here a way to log in the computers base on Ldap(openldap). You can use any seat with the login/pass you have. Well my problem is that everything worked fine till I had to upgrade Ubuntu to the last version (12.04). Now, it is far from impossible to log in because you only can choose administrator account! That would be my issue; I want to Lightdm allow me to choose the user e.g : pagonzalez or rmlago or whatever the login-name you have. I´ve been searching for 2 days now, and nothing comes up! Hope somebody here has any idea about it!

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• Internet Connection Problems

  - by Confused One

  I just installed Ubuntu 11.04 onto a laptop. There is no list of automatic connections when I click on the internet connection symbol. Enable Wireless was unchecked, so I checked it. However, it continues saying "wireless is disabled." Soft is blocked, and when I tried rfkill unblock wifi it told me that the device was not ready. I tried to counter this with what I found on this thread but nothing worked. I have tried manually entering my Wireless information, but this does not help. Is there a solution?

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• Manual memory allocation and purity

  - by Eonil

  Language like Haskell have concept of purity. In pure function, I can't mutate any state globally. Anyway Haskell fully abstracts memory management, so memory allocation is not a problem here. But if languages can handle memory directly like C++, it's very ambiguous to me. In these languages, memory allocation makes visible mutation. But if I treat making new object as impure action, actually, almost nothing can be pure. So purity concept becomes almost useless. How should I handle purity in languages have memory as visible global object?

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• problem showing my website correctly in search engines

  - by dinbrca

  Hello guys, I have a website which i have indexed on google for example (like 15 days ago). some of my pages pass arguments like: http://www.bla.com/products.php?pro=bla&page=view suddently i saw that passing arguments like this isn't good for SEO purposes and started using htaccess rewrite. and changed the arguments to like this: http://www.bla.com/products/bla/*view*/ now my site on google still shows as i showed at link number 1 what should i do? i thought i should wait for the search engine to crawl my site again but nothing happened. thanks in advanced, Din

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• Network programming under windows: is WSA functions can be more complete than pSock functions [on hold]

  - by Kane

  I plan to make a set of classic socket functions to simplify their usages. Since i work under windows and linux indifferently i usually make it portable (it's not my first version of this set of functions), but i want to do something different this time and dedicate one version to windows, and one other to linux. With that i wonder for the windows version, if the WSA* functions can have any interest using them instead of the psock ones. I have found nothing about a comparison between them, so if any of you have any idea, suggestion, link or benchmark ?

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• Next steps for Asp.Net C# developer (RoR vs Python Django vs PhP Drupal)

  - by ProfessorB

  A majority of my web development experience has been on the .Net stack (mainly Asp.net C#). I am looking to learn something new in my spare time, for the use of personal projects and possibly for use professionally (as an ISV). I know some Python, done some scripting with it in the past, nothing on the web though. Php has been around for a long time and RoR has gained a lot of popularity. Are there any developers from the .NET world that have migrated over to one or more of the other platforms? If so, which do you prefer and why? Which would you suggest and why?

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• what is the purpose of arrows?

  - by Simon

  I am learning functionnal programming with Haskell, and I try to grab concepts by first understanding why do I need them. I would like to know the goal of arrows in functional programming languages. What problem do they solve? I checked http://en.wikibooks.org/wiki/Haskell/Understanding_arrows and http://www.cse.chalmers.se/~rjmh/afp-arrows.pdf. All I understand is that they are used to describe graphs for computations, and that they allow easier point free style coding. The article assume that point free style is generally easier to understand and to write. This seems quite subjective to me. In another article (http://en.wikibooks.org/wiki/Haskell/StephensArrowTutorial#Hangman:_Main_program), a hangman game is implemented, but I cannot see how arrows makes this implementation natural. I could find a lot of papers describing the concept, but nothing about the motivation. What I am missing?

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• Wine 1.4. Cannot install vcrun6 on Ubuntu Studio 12.04.1 64 bit

  - by ABOBA

  Cannot install vcrun6. I tried to do it with winetricks and manually (download vcredist.exe and install), but nothing. Launching in terminal gives the following _user@_user-machine:~$ WINEPREFIX="/home/_user/.wine" wine "C:/vcredist.exe" fixme:setupapi:SetupDefaultQueueCallbackW notification 262144 params 32f63c,0 err:setupapi:SetupDefaultQueueCallbackW copy error 0 L"C:\\users\\_user\\Temp\\IXP000.TMP\\comcat.dll" -> L"C:\\windows\\system32\\comcat.dll" fixme:setupapi:SetupDefaultQueueCallbackW notification 262144 params 32f63c,0 err:setupapi:SetupDefaultQueueCallbackW copy error 0 L"C:\\users\\_user\\Temp\\IXP000.TMP\\msvcrt.dll" -> L"C:\\windows\\system32\\msvcrt.dll" fixme:setupapi:SetupDefaultQueueCallbackW notification 262144 params 32f63c,0 err:setupapi:SetupDefaultQueueCallbackW copy error 0 L"C:\\users\\_user\\Temp\\IXP000.TMP\\oleaut32.dll" -> L"C:\\windows\\system32\\oleaut32.dll" fixme:setupapi:SetupDefaultQueueCallbackW notification 262144 params 32f63c,0 err:setupapi:SetupDefaultQueueCallbackW copy error 0 L"C:\\users\\_user\\Temp\\IXP000.TMP\\olepro32.dll" -> L"C:\\windows\\system32\\olepro32.dll" fixme:setupapi:SetupDefaultQueueCallbackW notification 262144 params 32f63c,0 err:setupapi:SetupDefaultQueueCallbackW copy error 0 L"C:\\users\\_user\\Temp\\IXP000.TMP\\stdole2.tlb" -> L"C:\\windows\\system32\\stdole2.tlb" The distribution is Ubuntu Studio 12.04.1 64bit Thanks in advance

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• What are the benefits of a disk install vs. Wubi? And can I migrate my settings easily?

  - by Alex Bixel

  I chose to do the Wubi install because it was short, simple, and easy to reverse (no messing with partitions required). To be honest, I can handle the lack of a hibernate function. I haven't really heard many other benefits of installing on a separate partition than hibernation and negligibly faster hard disk read/write. Yet almost everyone I encounter seems to have opted for the disk installation. Are there more benefits I should be aware of, especially as a college student who wants a fast, efficient machine for documents, web browsing, etc. (nothing big like gaming, I can run that on Windows)? Also, I have a fair amount of settings and packages installed that I spent a bit of time on and would rather not have to do again. Is there any way I can migrate all of these settings from the virtual disk on my C:/ drive (Wubi installation) to the disc installation in another partition? (I have a 16GB USB drive if that'll do the trick)

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• Unable to boot 12.04 server: no LVM activated and impossible to mount /

  - by baronKarza

  I'm stuck in the Busy Box shell after upgrading from Ubuntu server 11.10 to Ubuntu server 12.04 64 bit. During the booting phase the system hangs while mounting root filesystem. My system is so configured: /dev/sda1 -- /boot /dev/mapper/vg-lv_root /dev/mapper/vg-lv_var /dev/mapper/vg-lv_tmp When the boot process fails and I'm forwarded to the busybox shell, if I type vgchange -ay I can mount my volumes and all it's OK. But it does not enable LVM automatically so that it is impossible to mount root, var, and tmp. I tried to start with a Knoppix, chroot, reinstall (aptitude) both kernel and lvm2 as suggested by this tread "Fixing unbootable installation on LVM root from Desktop LiveCD": nothing changed. I can't figure out what is the problem. Any suggestion is welcome. Thanks in advance.

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• Ubuntu One pretends to sychronize files, but it doesn't

  - by Tom Brito

  I have my Ubuntu One account configured in both Ubuntu 11.10 and iOS (ipod-touch). The photos from the iOS were successfully uploaded, but in Ubuntu One, although it shows the "syncing" and "synchronized" marks over the icons, the files are not showing in the website (one.ubuntu.com). In short: My files are not showing in the Ubuntu One website, although the icons have the "uploaded" mark. Any idea what can be wrong here? obs1: Also, not sure if it's related, the icon-marks will show only when I open the Ubuntu One Control Panel. It shows the message "file was uploaded", but there's nothing online. obs2: The folder I'm trying to synchronize is 30mb size. And my connection is 8mbps.

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