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• 12.04 monitor brightness commands ignored

  - by jarvisschultz

  I cannot change the brightness of the monitor on a laptop either from the command line or from keyboard shortcuts. I have verified that the file in /sys/class/backlight/acpi_video0/brightness is changing. I have also verified that I am running the nvidia drivers. Things I have tried: Adding entries to /etc/default/grub The GRUB_CMDLINE_LINUX_DEFAULT and GRUB_CMDLINE_LINUX entries now read GRUB_CMDLINE_LINUX_DEFAULT="quite nosplash acpi_backlight=vendor" GRUB_CMDLINE_LINUX="noapic" I have also tried various commands here (with an update grub and reboot each time) but nothing has helped I enabled brightness control in /etc/X11/xorg.conf so that it now looks like Section "Device" Identifier "Default Device" Driver "nvidia" Option "NoLogo" "True" Option "RegistryDwords" "EnableBrightnessControl=1" EndSection Investigated installing linux-kamal-mjgbacklight and determined it was not applicable to my system Nothing seems to have made any difference. I am using an Nvidia GeForce GT 330M with driver version 295.40. Does anyone have any other suggestions?

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• Why did I have to remove resolvconf to get dnsmasq to work again?

  - by lightxx

  Yesterday I upgraded to Precise and dnsmasq stopped working. That is, DNS queries to localhost were dnsmasq is listening (127.0.0.1) were refused. Removing resolvconf (apt-get remove resolvconf) and rebooting solved the issue (found that suggestion somewhere on Google). /etc/resolv.conf looked fine with and without resolvconf in place. No difference at all. Why would I use resolvconf? Are there any benefits? The Wikipedia article covering resolvconf sucks. Why did resolvconf interfere with dnsmasq? Is this a known issue?

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• "Je suis un ingénieur, pas un compilateur", les questions d'entretiens sont-elles trop orientées vers la maîtrise des instructions et concepts ?

  « Je suis un ingénieur, pas un compilateur » les questions d'entretiens sont-elles trop orientées vers la maitrise des instructions et concepts des langages De nos jours, les offres d'emplois sont de plus en plus orientées vers des langages bien définis. Conséquence : les questions d'entretiens abordent beaucoup plus les aspects liés aux concepts du langage. C'est en tout cas le constat d'un développeur au pseudo de clements, dans un billet de blog intitulé « je suis un ingénieur, pas un compilateur ». Celui-ci s'est rendu compte lors de plusieurs entretiens que des questions standards comme : qu'est-ce que le polymorphisme ? Quelle est la différence entre « List » et « S...

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• Reduced Tree View in NetBeans IDE 7.2

  - by Geertjan

  Right-click within the Projects window in NetBeans IDE 7.2 and from the "View Java Packages As" menu, you can now choose "Reduced Tree".I never really understood the difference between "Reduced Tree" and the already existing "Tree". But it makes sense when you see it. Here's Reduced Tree view: And here's Tree view, where you can see that the "actions" and "nodes" packages above each have their own top level package nodes, which takes up more space than the above: What's cool is that your selected package view is persisted across restarts of the IDE. To be complete, here's the List view, which is the third option you have in the "View Java Packages As" menu: Seems to me like the new Reduced Tree view combines the best of the Tree view with the best of the List view! Related issue: http://netbeans.org/bugzilla/show_bug.cgi?id=53192

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• How selective do we need to be for an index to be used?

  - by TiborKaraszi

  You know the answer already: It depends. But I often see some percentage value quoted and the point of this post is to show that there is no such percentage value. To get the most out of this blog post, you should understand the basic structure for an index, i.e. how the b+ tree look like. You should also understand the difference between a clustered and a non-clustered index. In essence, you should be able to visualize these structures and searches through them as you read the text. If you find...(read more)

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• How do I edit keyboard preferences from the command line?

  - by jumpnett

  I want to swap the Caps Lock and Escape key as specified in this answer: Use the keyboard preferences to swap Caps Lock and Escape - seriously, how often do you use Caps Lock? Using vim you will be using Escape all the time, and having it available on the home row makes a huge difference. With the standard Ubuntu desktop, go through the menus: System - Preferences - Keyboard - Layouts tab. Then hit the "Layout Options" button, click on the triangle next to "Caps Lock key behaviour" and select "Swap ESC and CapsLock". but, I'm using Ubuntu Server with no gui, so how would I do this from the command line?

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• Why does Windows 7 overall performance is better than Ubuntu 11.10?

  - by user37805

  I have a i7 2600 processor, 8Gb DDR3 ram, nVidia GTX570, and Ubuntu takes 45-50 seconds to boot and 32-35 seconds to power off, while windows 7 boots in 20-25 seconds and shuts down in 10 seconds. Both OS with autologin enabled, and in dual boot. Ubuntu is slow with preload too, and doesn't show any boot splash after installing drivers and didn't recognize my nVidia graphics card on jockey GTK, I had to add x swat repository and that didn't worked. I installed proprietary drivers through terminal (nvidia-common, nvidia-settings) in order to have 3d acceleration. But it doesn't make any difference on the speed. I also have a Pentium 4 PC and ubuntu 11.10 is way faster than windows 7 or XP. Also with nvidia graphics card and preload. http://paste.ubuntu.com/924890/ there is my boot script, sorry but some words are in Spanish because my ubuntu is in Spanish. Not using WUBI, Ubuntu has its own partition, 64-bits, and Matlab 2011 has very low performance compared to windows version.

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• Pros and cons of integrated vs. standalone tools [closed]

  - by eckes

  When it comes to version control, for example, there seem to be two different types of users: those using standalone VCS tools those using integrated tools from their IDE In my opinion, both have pros: Integrated tools do everything out of the IDE, no need to leave the environment you're used to ... Standalone tools usable for every type of project, not only for those associated with an IDE always behave the same (e.g. no difference like Eclipse-SVN-Client vs. AnkhSVN client for VS) ... I would be interested in your opinions and use cases.

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• can't chmod on external hard disk?

  - by G. He

  I have an USB3.0 external hard disk, partitioned to 3 NTFS partitions. When I plug the hard disk in, the 3 partitions automatically mounted under /media. So far so good. I can read and write to files, or mkdir, etc on these partitions. But I can't do chmod/chown on any of the files/directories on these partitions. The owner:group always myself, and the mode are always 700 for directories and 600 for files. I have another partition on internal harddisk also mounted. That partition works fine. I looked the output of mount command, the only difference between mount options is that there is one extra 'default_permissions' on the external hard disks. Anyway I can set the owner:group and mode on these files and directories.

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• How to run CLI commands from the launcher?

  - by user50849

  I press ALT+F2 key on my keyboard, and get the launcher HUD up. From there I enter a command as I would in a shell, specifically vlc ~/Music/* -Z. If done from a shell, vlc starts and begins to play music. However, when done from the launcher, VLC replies: File reading failed: VLC could not open the file "/home/[username]/Music/*". (No such file or directory) user Your input can't be opened: VLC is unable to open the MRL 'file:///home/[username]/Music/%2A'. Check the log for details. I can't quite figure out what the difference is.

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• Does Dropbox use a cronjob to sync up?

  - by Yko

  I was looking into lipsync on a Dropbox clone. I was looking at the diagram on how it works here. It shows that a cronjob is used to keep files in sync between client and server. Does that mean that every sec/min/hour, a cronjob runs and checks to see if there is a difference between client and server? Is that how Dropbox does it? If it does use a cronjob, what happens when you are in the middle of syncing and another cronjob runs? Does rsync (or additional libs) know how to handle this?

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• D'après-vous, quels sont les smartphones les plus réussis sous Android ? Participez à notre sondage

  D'après-vous, quels sont les smartphones les plus réussis sous Android ? Participez à notre sondage La fragmentation d'Android est un problème délicat pour les développeurs. D'autant plus qu'il est double : des versions de l'OS pour smartphones d'un coté et pour tablettes de l'autre, et des versions différentes de l'OS au sein de chaque catégorie. A cette complexité s'en ajoute une autre (contrairement à iOS) : la diversité des hardwares. Dont la première pour les développeurs est la différence des tailles d'écran. Enfin (contrairement à Windows Phone dont l'UI (Metro) n'est pas modifiable par les constructeurs), Android permet à chaque industriel de personnaliser l'interfa...

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• iOS Book App with Custom Book Repositories. Will Apple block this? [closed]

  - by BrianHanifin

  I am working with a kindergarten teacher to create an iPad/iPhone app which plays audio of her narrating each page of the "book". She wishes to only share some of the books with students in her class. Can I create a mechanism for downloading books from a custom repository link? I would send the URL home with the kids and have the parents type it into the app. I would include a couple of books preloaded with the app. I could even provide a sample repository with a sample book if you think it would make any difference. I am trying to come up with a creative solution that gives her the app she wants for her students while protecting the privacy she wishes for some of her content. What are your thoughts?

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• Strange problem of wifi keeps droping every minute on Ubuntu 12.04

  - by user965884

  I am running ubuntu 12.04 on my samsung laptop but the wifi connection keeps dropping every minute. I have another dell laptop which also has ubuntu 12.04 but wifi works fine on that. And if I use my samsung laptop at office as its my office laptop wifi works fine. So, I don't understand what the problem is. I have googled it and found solution like set ignoring IPv6 setting but that still does not make any difference. So I don't understand where the problem is if its with my network provider or its with my laptop. I can't blame my network provider as wifi works fine on my other devices including Ipad, mobiles and dell laptop. Even I can't say clearly that its problem with my laptop as wifi works fine in my office. Previously I had ubuntu 13.04 on my samsung laptop and I was having the same issue so I uninstall it and install 12.04 and issues is still the same.

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• Installed thinkfan, should I keep it?

  - by FRC

  Well I did fixed my overheating problem on my Lenovo T500 with Ubuntu 12.04 LTS. At the same time I did install Thinkfan. But since I have a solution for overheating now, I would like to know if there is any really good reason to keep it? My fan speed without it was cca 3000 RPM. When it installed droped to 2500RPM in idle time. Thinkpad have very quiet fans, so I don't really hear the noise when is on 3000RPM (no difference between 2000 or 3000 RPM). Is it better for processor to have more air or more air brings just more dust? Silly question but I would REALLY want to know the reason of keeping thinkfan.

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• Do you actually write 'clean code'?

  - by ykombinator

  I have seen some programmers tweaking their code over and over again not only to make it 'work good', but also to make it 'look good'. IMO, 'clean code' is actually a compliment indicating your code is elegant, perfectly understandable and maintainable. And the difference comes out when you have to choose between an aesthetically appealing code vs. code that's stressful to look at. So, how many of you actually write 'clean code'? Is it a good practice? What are the other benefits or drawbacks of this? EDIT: I came across the term 'girl-code' here.

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• Error [9783] Support for cores revisions 0x17 and 0x18 disabled by module

  - by iamzarnywoop

  At start up after my dell BIOS load i get the puprle screen and then a black screen and this at the top "[9783] Support for cores revisions 0x17 and 0x18 disabled by module... " sorry i think there's more to it and that's probably crucial but it goes SO fast sometimes and sometimes slower... I just wiped my laptop and installed 13.10 over it and ticked LVM at installation and log in automatically, idk if that would make a difference here... Any way i found someone else on Arch Linux had the same problem but I don't know how to solve it. https://bbs.archlinux.org/viewtopic.php?id=170588 Anyone know what this might be? Please help, new user..

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• Boot prompt hyphens

  - by purjuntu

  Booting an Ubuntu DVD, pressing F6 and then ESC presents the boot prompt with the default kernel options, with the possibility of editing and adding extra options. Something like: kernel /casper/vmlinuz boot=casper quiet splash -- Questions: What's the meaning of the two hyphens? When adding an extra option (such as "toram" or "vga=791"), is there any difference between adding it BEFORE or AFTER the hyphens? When typing commands in Bash, two hyphens in a row means "options end here; anything that follows should be treated as an argument, even if it starts with a hyphen". But the hyphens must have another meaning at the boot prompt, as "toram" or "vga=791" really are options.

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• forwarding my domain to ning site, vs paying for mapping. SEO value? [closed]

  - by myf

  Possible Duplicate: Could I buy a domain name to increase traffic to my site like this? hello, and thanks for your time to answer. really appreciate that! my domain url is keyword stuffed (homes for sale and the city name). does it make a difference if I foward that to my ning site, which is www.homesforsale(in city name).ning.com or is it just the same for SEO / pagerank value as paying ning for the proper url mapping. thanks so much!

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• Print to file in Black and White (but not in greyscale) [not printer specific]

  - by user2413

  Hi all, I have these pdf files of c++code and they are colored which would be cool, except that the network printer here is b&w and the printed out codes come in various shades of pale grey which makes them essentially unreadable (specially the comments). I would like everything (text, codes, commands,...) to be printed in the same (black) color. i've tried fuddling with the printer's properties, but the closest thing i see is the 'level of grey' tab, and there i have the choice between 'enhanced' and 'normal' (and it doesn't make a difference in my case). i've tried 'print to file', but i don't see any options there to print to b&w, I've tried installing the 'generic cups printer', but again no options to print to b&w. any idea ? (i'm on 10.10)

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• Where can I get a definition of how the code is laid out in VB.NET 2010?

  - by ByteWorker

  I am just starting out learning Visual Basic 2010. I have books and videos. The books all seem to be written for people who have some programming experience, even the books that say they are for beginners. The videos were great until they started talking about variables. I got the basics of them but they started into complicated variables and I don’t see the need for them right away. Where can I go to see code for fairly intricate applications written out, with an over lay of definitions of which part of the code is a method as opposed to a class and so on? Also, I am working at a company that does not use SQL. So I need to use Access 2007 for all of my tables. Is there much of a difference to the coding?

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• Should we use python 2.6 or 2.7 or 3.x?

  - by lamwaiman1988

  The version of python which I am using is 2.6, and there is a 2.7 and 3.x. Usually I use python for some trivial program/snippet. I realize there are some major difference between 2.x and 3.x. I would really like to know, if I am going to make a bigger project with python, which version of python should I use? Should I upgrade to 2.7, or go to 3.x or stay with 2.6? The decision should be based on these terms: Number of user in the internet as a community. More users mean more open-source package and help from them. Functionality. Support from official development team. Compatibility for existing module/package. Thanks!

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• ASUS VX-6 Laptop Wireless not connecting

  - by user2152790

  Someone posted a script a couple days ago, here is my output.Pastebin I can see wifi SSIDs in network, but cannot connect to mine. The only time wifi worked on 13.10 was in the Live CD, but wifi stopped working as soon as install process started. Did below but made no difference. sudo apt-get install bcmwl-kernel-source sudo modprobe -rv brcmsmac sudo modprobe -v wl What I do next? I tried Software&Updates and it showed 1 proprietary driver in use. This sounds like a WPA/WPA2 issue? Wifi works when I tried Zorin OS 7.1, wifi always worked in windows 7.

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• CSS&ndash;margin or padding

  - by woodbase

  I was beginning the implementation of a new design, and once again I found that my margin property on a div-tag, did not behave as I expected. So I decided to look for best practice when it comes to using margin or padding. What I found was this very short and concise description of the difference between the two: “Margin is on the outside of block elements while padding is on the inside. Use margin to separate the block from things outside it, padding to move the contents away from the edges of the block.” So what is best practice? Well it depends on the context. In my case I should have used padding…

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• Can I set command line executed games to open in a window instead of fullscreen?

  - by ajwhitaker822

  I really enjoy some of the free Linux games and just downloaded Cave Story, one of my all-time favorites. However, I can only play the game in full screen, 800X600 Resolution. I was wondering if I could run this program in a window instead of full screen. Is there a command or Unity plugin to do this? Also, would the same work to run SuperTux in a window as well? I'm running 12.04 if that makes any difference. Thanks for your help.

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