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• How can a script detect if the user is idle

  - by josinalvo

  I want to check, inside a bash script (*), how much time the user of a X session has been idle The user himself does not have to be using bash, but just X. If the user just moved the mouse, for example, a good answer would be "idle for 0 seconds". If he has not touched the computer in 5 minutes, a good answer would be "idle for 300 seconds" The reason to not use xautolock straight away is to be able to implement some complex behavior. For example, if the user is idle for 10 minutes, try to suspend, if he is idle for more 5 minutes, shutoff (I know it sounds odd, but suspend does not always work here ...) (*)or could be another language.

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• A real noob question

  - by Jaymz

  I have a Hp mini netbook that has been wiped clean, there is nothing other than the bios on it, it has no DVD and I don't have an external DVD. I can change the boot order to boot from a usb device. I have downloaded ubuntu-12.04.1-desktop-i386 I have one of these http://www.kikatek.com/P100600/34609-IOMEGA-250gb-Select-Portable-HDD-2-5-USB?source=froogle currently formatted to NTFS but I can format to exFAT I have tried Linuxlive USB creator, all that managed to do was dual boot the desktop pc that I'm working off, and when booting on the wiped clean netbook, just left me with a black screen with a blinking cursor I have also tried Unetbootin, this managed to change my 'My Computer' icon to Install Ubuntu (C:) and now again, my desktop pc dual boots with the Wubi software, the Unetbootin, wouldn't let me select my external drive to write to Please I'm a complete idiot, i need a super idiots guide to doing this Regards Jaymz

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• How should I set up UDK with Git and CruiseControl?

  - by Martin Sojka

  For a new project in UDK, I'd like to set up a Git repository for version control and a CruiseControl.NET-based continuous integration solution. The good news is that he first part seems easy enough and CruiseControl.NET can work off Git repositories. The bad news is that according to my searches, nobody has ever tried to do this. Ideally, I'm looking for a step-by-step guide on how to set up such a development environment assuming more than one development computer, one central repository for the "master" branch, and one machine for building and packaging the binaries via CruiseControl.NET. Related: Version control system for game development with UDK? Options for UDK and version control repositories? CruiseControl.NET and Git

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• why boinc now on ubuntu 12.04 just run 2 tasks?

  - by user49523

  i use to have when i have the computer turn on and was idle having more than 2 tasks running at same time.. but now this is not happens and it is enable at maximum of 2 tasks at same time, i don know why. also i was able 2 do that on ubuntu 11.10 not sure if is the same using boinc on ubuntu 11.10. so why this happens? and how can i set up boinc 2 run more than just 2 tasks at same time in ubuntu 12.04 beta?

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• How to hide/remove "exit, minimize, maximize" bar on top of the application when not maximized, showing only the application/program on the desktop

  - by bigbadbabybear

  I'm an on and off novice ubuntu user, last used 9.04 and installed 11.10 a week ago. What I want to happen, edit unity to suit how I use my computer: Copy the way xmonad (www.xmonad.org) shows its applications and that is that there is no "exit, minimize, maximize" bar on top of the application I've read a few things on how to configure unity using Ubuntu Tweak and MyUnity I want to eventually switch to xmonad but for now it is still too complicated for me even with all the docs & tutorialss it's still too complicated for me & I cannot yet let go of my mouse tl;dr? from this: to this Is this possible? And if it is possible, how?

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• HTG Explains: What is DNS?

  - by Chris Hoffman

  Did you know you could be connected to facebook.com – and see facebook.com in your web browser’s address bar – while not actually being connected to Facebook’s real website? To understand why, you’ll need to know a bit about DNS. DNS underpins the world wide web we use every day. It works transparently in the background, converting human-readable website names into computer-readable numerical IP addresses. Image Credit: Jemimus on Flickr How To Switch Webmail Providers Without Losing All Your Email How To Force Windows Applications to Use a Specific CPU HTG Explains: Is UPnP a Security Risk?

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• How can I fix my problems with fonts in Firefox?

  - by snostorm

  Ever since I reinstalled Ubuntu a few hours ago, I've experienced major visual artifacts with smaller font sizes in Firefox. The fonts end up looking like this: Or even like this: This only occurs in Firefox; other applications are unaffected. It also occurred on the LiveUSB I used for installation, making me suspect a hardware or driver issue. The output of lshw on my computer is here: http://pastebin.com/LnSt6veT. Any idea what might be causing this, or how I can fix it? ... and "Use Google Chrome" is not a valid answer. ;)

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• Auto backup mysql database to dropbox [closed]

  - by Rob

  Is it possible to automatically backup my database to dropbox? If so how can I do it? The key criteria I need it to do is: Be automatic. Be Mac compliant. Be weekly. Sync with dropbox (http://www.dropbox.com) automatically. Be able to backup several databases from several websites. Be free... or relatively cheap! Have a guide on how to setup the solution. UPDATE: I've managed to setup an auto weekly backup using a cronjob: mysqldump -u username -pMyPassword Mydatabase > backup-file.sql That is saving the backup to my hosting space. It's a start but isn't ideal, how can I save that backup to a folder on my computer? Automatically of course.

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• Roll Your Own Flexi-Ties to Secure and Store Frequently Used Cables

  - by Jason Fitzpatrick

  If you’re looking for an easy way to hang up or tidy frequently used cables, these DIY soft ties are durable, resuable, and easy to make. Soft ties ties are metal wire ties coated in rubber; people use them for everything from securing computer cables to shaping garden plants. Instructables user Bobzjr wanted a lot of them but couldn’t find anyone that sold bulk roles of the soft tie material. To that end he did a little exploring at the hardware store and found the perfect combination of wire and rubber to roll his own. Hit up the link below for more information on his DIY soft tie project. Roll Your Own Flexi-Ties (Soft Twist Ties) [Instructables] How To Properly Scan a Photograph (And Get An Even Better Image) The HTG Guide to Hiding Your Data in a TrueCrypt Hidden Volume Make Your Own Windows 8 Start Button with Zero Memory Usage

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• Windows 8.1 Ubuntu will not run after restart

  - by leslie canfield

  I have been searching the internet forever now, but I am using wubi on a windows 8.1 laptop. I have properly burned the newest version of Ubuntu, I have never done this before, so please put the answer in simple terms. When I open wubi it comes up with these options: -reboot now -manually reboot later I put reboot now, and it reboots with no changes or differences to my operating system. The installer does not pop up upon rebooting and I have no idea what to try. I am a totally newbie at this. Please help me. I am using an Asus computer.

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• Boots to a totally blank screen after I installed some ATI Radeon card updates

  - by baboonWorksFine

  I am using Ubuntu 10.04 LTS, dual boot with win7 on ThinkPad T400, I followed Ubuntu update hints and installed some update for my ATI Radeon graphic card, but when I boot to Ubuntu(means I can still load GRUB), the tragedy happened, the screen goes to blank and no matter what key stroke, I can not get any responds, I try to go to text terminal, but impossible! However when I hit the power button, the computer would pop out the Ubuntu shutdown screen briefly and shut down. I figure out I should delete the updates package of my graphic card, but I don't even get a chance to go to text terminal, please help me!

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• play sound from different applications on different output devices (speakers, headphones)

  - by Mike

  I want music (played e.g. via Audacious) to be played on speaker system, and all other sounds produced by other applications (including ubuntu sound effects) to be played on headphones. My computer has sound connectors at its back, and also connectors on its front panel. When I connect both headphones and speakers, only headphones work (I take it, the front connectors take precedence?). Should I purchase another sound card (in addition to the motherboard-integrated sound I have)? When I go to Audacious output settings, I see only the ouput plugin selection list, with PulseAudio selected and options like ALSA, OSS4 etc. But there's no facility to select particular output device (and I guess it wouldn't magically appear even if I had the second soundcard). Is this at all possible to bind specific application to particular output device?

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• Survey says: Java technology rules

  - by hinkmond

  Eclipse came out with their Open Source Developer Report and Survey for 2012. In it, we see (in the words of the immortal Richard Dawson, RIP) "Surveys Says!": Java computer programming language is on top. See: Java is the top Here's a quote: The Eclipse community was invited to participate in the survey between April 23 and May 15 of this year. Skerrett says the Foundation promoted the survey primarily through social media (Facebook, Twitter) and online forums. Of the 840 people who responded, 732 completed the survey... So, now we know who's on top, we can keep this in mind the next time this question comes up on Family Feud. Hinkmond

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• "kde-config not found" error while installing kstars from source

  - by tachyons

  I am trying to install kstars from source ,but I got the following error while configuring ./configure checking build system type... i686-pc-linux-gnu checking host system type... i686-pc-linux-gnu checking target system type... i686-pc-linux-gnu checking for a BSD-compatible install... /usr/bin/install -c checking for -p flag to install... yes checking whether build environment is sane... yes checking for gawk... no checking for mawk... mawk checking whether make sets $(MAKE)... yes checking for kde-config... not found configure: error: The important program kde-config was not found! Please check whether you installed KDE correctly. What does it mean ,I already installed kde in my computer

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• How to setup an intranet in ubuntu using wifi?

  - by ved2254

  I want to set up a VPN on my laptop but I don't know what and how to set it. My requirements are : Intranet with a customizable list of shared folders. Intranet outsourced via computer wifi. Possibly assigning individual private IP addresses to all connected. Facility to share internet (if hassel free). Can I do this using Gnome Network Manager or do I need another program? I'll be happy even if I get one folder to share for the time being and no internet if I could only outsource one file/folder.

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• What's the best way to add some particle or laser effects to an already animated character?

  - by Scott

  I just purchased some rigged and animated robot characters from 3drt for a game I'm making in unity. I would like to be able to add some weapon effects to the characters. For example, I would like for the robots to be able to shot lasers out of the hands at enemies. I have know idea where to even start with this task as I'm more of a programmer than a graphics guy. Can some experienced developers / designers please point me in a good direction? Thanks. Note: As of right now I have maya and blender installed on my computer.

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• How to protect Ubuntu from fork bomb

  - by dblang

  I heard someone talking about a fork bomb, I did some research and found some dreadful information about some strange looking characters people can have you type at the command line and as a result do bad things on the computer. I certainly would not issue commands I do not understand but one never knows what can happen. I heard that some OS allows the administrator to place some limit on user processes to mitigate the effects of fork bombs, is this protection in Ubuntu by default or would a person with sudo privilege have to set this? If so, how?

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• PC noisy due to high load - why?

  - by Jinx

  I just installed an ubuntu on my pc(Dell Inspiration I560SR-358, with CPU E5700 3GHz, 4G memory, and NVIDIA GeForce G310). The pc becomes noisy before that it's quiet with a windows 7 on it. How come? How to set it to be quiet again in unbuntu 10.04. One of the two cpu usage is always 100%. I think that is the reason. //re-edit Everything gets ok after I restart the computer.But the fan is still running which makes it noisy, if i switch to windows 7, it becomes quiet again.

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• Linux Programmer moving to Windows

  - by cytinus

  I am a fairly proficient Linux programmer. I have been coding in Linux for 4 years, for both personal reasons and for profit. During those 4 years I have not even owned a computer running the Windows operating system. I am looking to expand my horizons into Windows programming, but am finding myself overwhelmed with the lack of what I perceive to be standardization. I feel as though different compilers follow different conventions, and all of the worthwhile IDEs cost money. Whats worse is that so many of the Tutorials are just terrible. If anyone else has taken the switch from Linux to Windows programming, what was the most helpful. What are the most straightforward IDEs and tutorials for using the API. I am looking to do mainly C and C++ development, along with some x86. I have found MASM primarily suits my needs for the latter.

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• Ghosting Program for Ubuntu 12.10

  - by Sean Webber

  I am looking to figure out how to set up a mass backup system for a computer network (of about 25) and am looking for a ghosting program that makes an image of the entire system for backup/recovery purposes. While clonezilla would work.. you have to manually boot us the CD for it. I am looking for a program that runs INSIDE Ubuntu that sends a system image backup off to the network server at set times, then when needed could also be used to burn the clone back to the machine. Another words- automatically and the only time I have to do anything to it is when I need to burn a backup BACK to a 'crapped' machine. Any ideas?

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• best programming language for a web based game?

  - by Adam Geisweit

  what programming language would be best for making a web based game to be played in a browser, and where would i be able to find tutorials on how to use the language? i have looked up silverlight in xna (because that was what i was most fluent with), but it made my projects unusable for a month until i got all of silverlight off my computer. i have looked at java and javascript, but i have found no suitable places where i can learn to create games on either of these, just the basics of the language. does anyone have any advice on this?

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• Trouble using Canon MG 2440 printer in UBUNTU 14

  - by user264795

  I connected usb serial cable from printer to computer. The drivers has been installed automatically. I printed the test page - it was printed. I tryed to print an image - it stays with status - processing... and dont work. Test page also cant be printed. What a problem? I dont know exactly, but I think I use "CUPS" manager and drivers... now status Waiting for printer to become available. And do not print.

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• Can I use GNOME applets in Unity?

  - by Moma Antero

  Applets are small programs that you attach and start from the GNOME's toolbar. See picture: http://www.futuredesktop.com/audio-recorder/recorder-applet.ogv My favourite applets are: rec-applet: Smart audio recorder applet. You can get this from Launchpad. clipart-finder: Find and download clipart to your computer. You can get this from the Launchpad. 1) Can I use these applets in UNITY as is? 2) What changes I have to make to applets' code (rec-applet and clipart-finder) to make them usable in Unity? 3) Where is the applet-specification for Unity?

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• After deploying services I get incorrect public adress

  - by user84471

  I deployed wordpress and when I type juju status I recievie this: public-adress: node-001185e6777fe When I found what is IP adress of this computer I tried type in webbrowser but I get 502 bad gateway. After juju status: hsf@ubuntu:~$ juju status 2012-10-05 11:26:49,385 INFO Connecting to environment... Enter passphrase for key '/home/hsf/.ssh/id_rsa': 2012-10-05 11:26:51,905 INFO Connected to environment. machines: 0: agent-state: running dns-name: node-00127968a7be.local instance-id: /MAAS/api/1.0/nodes/node-ab7c5eb6-0e08-11e2-bb37-001185e67955/ instance-state: unknown 1: agent-state: running dns-name: node-001185e677fe instance-id: /MAAS/api/1.0/nodes/node-82beae92-0e09-11e2-a134-001185e67955/ instance-state: unknown 2: agent-state: running dns-name: node-001185e6772b.local instance-id: /MAAS/api/1.0/nodes/node-5c21dc18-0e0a-11e2-a134-001185e67955/ instance-state: unknown services: wordpress: charm: cs:precise/wordpress-9 exposed: true relations: loadbalancer: - wordpress units: wordpress/2: agent-state: started machine: 1 open-ports: [] public-address: node-001185e677fe.localdomain 2012-10-05 11:26:52,459 INFO 'status' command finished successfully hsf@ubuntu:~$

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• LibreOffice prints everything half size

  - by oldmankit

  Ever since I printed a document from Evince in landscape orientation, LibreOffice Calc / Writer refuses to print anything correctly. It is scaling everything by 0.5x and rotating it. To get the same effect, go to print - page layout tab - pages per sheet = 2. However, I don't want 2. I want 1. I have wizzed through all of the printing options a few times but can't get to the bottom of this. I've restarted my printer and computer several times. I have done sudo apt-get purge libreoffice* and reinstalled again. Still it will not print full size. (Of course I have checked that the page settings are set to A4 and portrait.) Update: this problem is specific to one printer only, to printing from within LibreOffice (Calc, Writer). With other printers / programs I have no problems.

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