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• Screen goes nuts and unreadable

  - by ChazD

  Running Ubuntu 10.10 in its own partition, also have Oracle Virtualbox 4 with Windows XP. Because i previously had a problem with a dark screen when i let the laptop on and i didn't use it for a long while i had set Power settings to Never sleep, never let the Display sleep. Monitor on install set to Laptop resolution 1400 by 1050, refresh rate 60 Hz, rotation Normal. The problem was when the computer was left on and i returned after about an hour, the screen was unreadable, similar to what used to happen to graphics cards before multisync became normal. So it appears as though the graphics card was asked to use a resolution it couldn't handle and went nuts. I had to power off the system, on restart everything was fine. Thanks for any suggestions. ChazD

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• ADF Mobile Client Developer Preview announced!

  - by [email protected]

  Today at the RIM WES conference, Ted Farrell, Chief Architect and SVP, announed the general availability of the ADF Mobile Client Developer Preview.  This is an extension to JDeveloper that allows developers to rapidly develop mobile applications that reside on the mobile device and access a local database and can be used while completely disconnected from the network with a data synchronization technology to get the data back to the server.  You can quickly develop applications declaratively that run on multiple platforms without having to do native coding.  Go download JDeveloper at http://www.oracle.com/technology/software/products/jdev/index.html You can get more info about ADF Mobile Client here at:  http://www.oracle.com/technology/tech/wireless/adf_mobile.html   Check back here for coding examples and how-to's that will be posted regularly.

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• 7 Ubuntu File Manager Features You May Not Have Noticed

  - by Chris Hoffman

  The Nautilus file manager included with Ubuntu includes some useful features you may not notice unless you go looking for them. You can create saved searches, mount remote file systems, use tabs in your file manager, and more. Ubuntu’s file manager also includes built-in support for sharing folders on your local network – the Sharing Options dialog creates and configures network shares compatible with both Linux and Windows machines. How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It? HTG Explains: What Is Windows RT and What Does It Mean To Me?

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• HTG Explains: What The Windows Event Viewer Is and How You Can Use It

  - by Chris Hoffman

  The Windows Event Viewer shows a log of application and system messages – errors, information messages, and warnings. Scammers have used the Event Viewer to deceive people – event a properly functioning system will have error messages here. In one infamous scam, a person claiming to be from Microsoft phones someone up and instructs them to open the Event Viewer. The person is sure to see error messages here, and the scammer will ask for the person’s credit card number to fix them. As a rule of thumb, you can generally ignore all of the errors and warnings that appear in the Event Viewer – assuming your computer is working properly. HTG Explains: What The Windows Event Viewer Is and How You Can Use It HTG Explains: How Windows Uses The Task Scheduler for System Tasks HTG Explains: Why Do Hard Drives Show the Wrong Capacity in Windows?

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• CFP for Java Embedded @ JavaOne

  - by Tori Wieldt

  Java Embedded @ JavaOne is designed to provide business and technical decision makers, as well as Java embedded ecosystem partners, a unique occasion to come together and learn about how they can use Java Embedded technologies for new business opportunities. The call-for-papers (CFP) for Java Embedded @ JavaOne is now open. Interested speakers are invited to make business submissions: best practices, case studies and panel discussions on emerging opportunities in the Java embedded space. Submit a paper. Also, due to high interest, event organizers are also asking for technical submissions for the JavaOne conference, for the "Java ME, Java Card, Embedded and Devices" track (this track ONLY). The timeline for the CFP is the same for both business and technical submissions: CFP Open – June 18th Deadline for submissions – July 18th Notifications (Accepts/Declines) – week of July 29th Deadline for speakers to accept speaker invitation – August 10th Presentations due for review – August 31st Attendees of both JavaOne and Oracle Openworld can attend Java Embedded @ JavaOne by purchasing a $100.00 USD upgrade to their full conference pass. Rates for attending Embedded @ JavaOne alone are here.

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• Hack Your Lights for Remote Control

  - by Jason Fitzpatrick

  This clever hack combines a modified wall switch with unused buttons on a universal remote to create one-touch wireless control of the lighting in a media room. Andrew, the tinker behind this home theater hack, writes: I really liked the idea of controlling my “Home Theater” lights with a remote (TV or other), this would save me the exhausting task of heaving myself off the couch to turn the lights on or off. I found one of my remotes has a spare power button, its one of those stupid “universal” remotes that comes with DVD players or TVs but only work if you have all the same brand equipment, I don’t so this made a good option for a light switch. Hit up the link below to check out more photos of his project and download the source code. Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It How To Delete, Move, or Rename Locked Files in Windows

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• Lubuntu 12.04 PPC slow startup and shutdown

  - by Carlo Bertuccini

  I've installed Lubuntu 12.04 on a Powerbook G4 (PowerPC 1GHz, 1 gb ram, Geforce MX 440). Everything works perfectly except the startup and shutdown. To startup my system I have to wait about 3 minutes (and similar time to shutdown) Giving a look @ /var/log/dmesg I noticed the following [drm] nouveau 0000:00:10.0: Detected an NV10 generation card (0x017900a5) checking generic (b8004000 151800) vs hw (b8000000 80000000) fb: conflicting fb hw usage nouveaufb vs 0Ffb NVDA,Displ - removing generic driver The only issue concerns Nouveau ... inside my /var/log/kern.log says what follows BUG: soft lockup - CPU#0 stuck for 22s! I've booted passing the "nouveau.modeset=0" parameter and the system boot in 15 seconds but with 4 bit graphics -- Any idea how to fix? Thanks in advance for any help

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• Bridging: Loosing WLAN network connection with 4addr on option - Why?

  - by WitchCraft

  Question: For use with my Xen VM, I need to create a virtual network interface (vif) that is bridged to wlan0. If in /etc/network/interfaces I add auto xenbr0 iface xenbr0 inet dhcp And then later do brctl addif xenbr0 wlan0 I get this error message. can't add wlan0 to bridge xenbr0: Operation not supported I found out that Linux won't let you bridge a wireless interface in managed mode at all unless you enable the 4addr option (needed to recompile iw): iw dev wlan0 set 4addr on Afterwards brctl addif xenbr0 wlan0 works, and brctl show shows xenbr0 as bridged to wlan0. Unfortunately, as soon as I execute iw dev wlan0 set 4addr on my entire network connection is gone (no connection). As soon as then I execute iw dev wlan0 set 4addr off I reconnect and it works again. If I re-execute 4addr on, it breaks again, if I execute 4addr off, it works again. Unfortunately, I can't just turn 4addr on, activate the bridge and then turn it back off (error: device not ready). Does anybody know why I loose my connection ?

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• Best hardware for a Ubuntu Computer?

  - by Dante Ashton

  Hey all. I'll be needing a new PC soon, but I've decided to build my own, so my question is...what's the best hardware for Ubuntu? Specifically, in terms of graphics cards; I'm looking for something that will run smoothly (for Compiz's effects and Unity) but will be quite modern (IE: have a HDMI output) The machine itself is just a generic computer, nothing special; I just want to future-proof it. I'm looking at quad-core chips and 3-4 gig of RAM. I want something that will play nice with Ubuntu; now, and in the future... I used to build machines years ago, but I've fallen behind (that was in the Windows 98 era...so yeah, quite a while ago!) My main problem is the graphics card; I'd prefer to stick with NVIDIA, but only a tiny amount of computers I've seen play nice with Nouveau.

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• Bug in firefox address bar autocomplete running on KDE

  - by marcus

  Has anyone experienced this graphical glitch when typing in Firefox address bar? The drop-down list is not drawn correctly, with some "blocks" missing. After typing more letters or hovering the mouse cursor, the list redraws itself and becomes complete. I'm running Ubuntu 12.04, Firefox 13.0.1 and this only happens in KDE (tested with 4.8.2, 4.8.3 and 4.8.4). It does not happen in Unity or Xfce with the same user profile. If I go to the KDE control panel and disable the Fade effect, the bug starts to happen to almost every menu in the system, including, the taskbar window previews. Enabling the “Fade” effect corrects the bug everywhere except in Firefox. I have an Nvidia card and I am using the proprietary driver (current, not current-updates -- not sure about the difference), but the linked question on an Arch Linux forum says this happen with the open source driver and with other cards too. Does anyone have an idea for a solution?

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• I attempted to install cuda drivers, and now almost everything is broken

  - by Nathan

  I tried to install CUDA tookit 5.0 on ubuntu 12.04 and the installation proceeded OK. After rebooting however, all I get is a terminal login. I've attempted to start the display manager with sudo start lightdm and it says all OK, but just hangs the prompt when it finishes loading without ever starting any display manager. sudo start gdm just flickers and goes back to the prompt. There is no network connection on the machine either. It usually connects to a wireless network with remembered credentials. What can I do to recover the machine?

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• How do I open up firewall while keeping it safe?

  - by d3vid

  Since I've installed Firestarter I have encountered connectivity issues that are all resolved by disabling the firewall. I'd prefer to have the firewall running and allow all the traffic I normally use: Wired network + wireless network, whichever I'm connected to, or both (1) OpenVPN VirtualBox internal network Samba (for accessing shared Windows folders and sharing folders to Windows) (2) BitTorrent And everything else I use that I can't think of :) All the above works without a firewall. I thought Linux was super secure (I update regularly). Do I really need it? (1) I used the Firestarter wizard and selected wlan0 as my primary connection, now whenever I plug in a network cable, I lose all connectivity. Should I just redo the wizard for eth0, or will I then lose wlan0? (2) If it makes a difference I'm sharing a directory that I share between local users using bindfs. See my answer to Good and easy way to share files on local machine

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• How to Make Steam’s Offline Mode Work

  - by Chris Hoffman

  Steam’s offline mode is notoriously problematic. To ensure it will work properly, you should perform a series of steps while online. If you don’t, Steam is supposed to prompt you for offline mode – but this doesn’t always work properly. If Steam’s offline mode isn’t working at all, you may still be in luck – some Steam games don’t use Steam’s DRM at all and can be launched manually. How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It? HTG Explains: What Is Windows RT and What Does It Mean To Me?

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• Latest SolidQ Journal Plus Giveaways

  - by Andrew Kelly

    You can find the latest edition of the SolidQ Journal here that is always good reading but if you register over the next 3 weeks you may be eligible for a prize including:  One $500 Amazon gift card and 5 $150 gift cards; books from Itzik Ben-Gan, Greg Low, and Erik Veerman/Jay Hackney/Dejan Sarka; and chats with MarkTab and Kevin Boles.   The deadline for the giveaway is January 7th and you can register for it HERE .  So be a good little boy or girl and maybe Santa will bring...(read more)

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• What You Said: How You Keep Your Email SPAM Free and Tidy

  - by Jason Fitzpatrick

  Earlier this week we asked you to share your favorite tips and tricks for keeping your inbox tidy. Now we’re back to share your–rather aggressive–SPAM dodging tricks. HTG readers are serious about beating back SPAM. While some readers such as TechGeek01 took a fairly laid back approach to junk mail: I usually just read emails, and delete them when my inbox gets kinda full. As for spam, I mark it as such, and the automated spam filter usually catches it the next time. It’s a fairly simple method, I know, but it’s efficient, and takes almost no effort, other than a monthly cleaning. For other readers it was outright war. ArchersCall uses a system of layers and whitelists: I have a triple system and rarely see spam. How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

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• How to Convert an MP4 Video into an MP3 Audio File

  - by Erez Zukerman

  MP4 is a widely-used video format; you can grab MP4 files off YouTube, Vimeo, and many other online video websites. But what if you have a video of a song you love, and want to extract just the music? Read on to see two different ways to do just that. Latest Features How-To Geek ETC Have You Ever Wondered How Your Operating System Got Its Name? Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions How to Enable User-Specific Wireless Networks in Windows 7 Dim an Overly Bright Alarm Clock with a Binder Divider Preliminary List of Keyboard Shortcuts for Unity Now Available Bring a Touch of the Wild West to Your Desktop with the Rango Theme for Windows 7 Manage Your Favorite Social Accounts in Chrome and Iron with Seesmic E.T. II – Extinction [Fake Movie Sequel Video] Remastered King’s Quest Games Offer Classic Gaming on Modern Machines

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• Linux kernel 3.5.0-18 update is not working with NVIDIA driver 304.60

  - by Janos Fejos

  I have Ubuntu 12.10 64 bit and a Nvidia card GT430 and installed 304.60 Linux driver manually and it worked beautifully until the latest Ubuntu update which got modified to 3.5.0-18 Kernel. Everything has gone: launcher, windows I can't move them it got USELESS. I tried to run the previous kermel 3.5.0-17 with which the driver was working well. I gto the same desktop. USeless - So the problem is something else I guess but it has to do with the update that's for sure- Any idea what to do? Now I have to switch back to Windows 7 which I don't want in order to able to work until an update will come up.

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• ubuntu 12.04 install black screen

  - by Tara Scarborough

  When I try to install Ubuntu 12.04 i get the grub 1.99 screen that allows me to select ubuntu install, or try ubuntu with out installing. When i select install ubuntu the screen goes black and i can tell the hard drive is running, but there are no on screen prompts. I looked into this problem and attempted to change a few variables by pressing "e" to edit the ubuntu install boot screen I then changed splash to nospash, quiet to noquiet, and add nomodeset at the end of the line that starts with linux before the "--". This still changes nothing when i press F10 to boot. I have tried removing quiet and splash altogether and adding nomodeset, but still to no avail. I am a little frustrated and don't know what to do. Any help would be greatly appreciated! The system is brand new - no OS: Hardware: Zotac ZBOX ZBOX-ID81-PLUS-U Nettop Computer - Intel Celeron 857 1.20 GHz - 8 GB RAM - 320 GB HDD - Intel Graphics Media Accelerator HD Graphics Card

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• How To View and Write To System Log Files on Ubuntu

  - by Chris Hoffman

  Linux logs a large amount of events to the disk, where they’re mostly stored in the /var/log directory in plain text. Most log entries go through the system logging daemon, syslogd, and are written to the system log. Ubuntu includes a number of ways of viewing these logs, either graphically or from the command-line. You can also write your own log messages to the system log — particularly useful in scripts. How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

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• Send arbitrary commands to modem for info

  - by mydoghasworms

  I have a USB 3G data card and modem. According to the supplier, to check the data balance on the account, I must dial a number like *89# (or whatever) from the handset. The device appears as a ppp0 interface in my network devices. How does one go about issuing commands to the modem to send the commands and receive back the information? UPDATE: OK, I found some help here: http://www.linuxquestions.org/questions/linux-hardware-18/sending-at-commands-to-a-sms-modem-372445/, but firstly, there are 3 ttyUSB devices on my system, and I assume that one of them is the 3G modem, but how can I tell? Secondly, trying to echo something to two of them says that the device is busy, which stands to reason, because I am using it to connect to the internet. Some help, please?

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• Skipping video and audio with PS3MediaServer

  - by MaxMackie

  I'm using the latest PS3MediaServer build right from the repos suggested in the Ubuntu Wiki. I'm streaming multiple movies from my server (Ubuntu 10.04 LTS) to my PS3 over wireless. Sometimes, during some movies, the audio and the video will begin skipping. This can last anywhere between 5 and 30 seconds before it goes back to normal. I have a four core i5 processor and 8GB of DDR3 RAM so I don't think my computer is having a hard time keeping up with the transcoding. So this leads me to believe it's either sub-optimal transcoding options from within PS3MS or my network can't handle the heat. Other than the out-of-box configuration, is there any way I can tweak the settings for the application to use my resources more efficiently?

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• How to Change Your Default Applications on Ubuntu: 4 Ways

  - by Chris Hoffman

  There are several ways to change your default applications on Ubuntu. Whether you’re changing the default application for a particular task, file type, or a system-level application like your default text editor, there’s a different place to go. Unlike on Windows, applications won’t take over existing file extensions during the installation process — they’ll just appear as an option after you install them. How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

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• Kernel Panic: line 61: can't open /scripts/functions

  - by Pavlos G.

  I'm facing a problem with all the kernels installed at my system (Ubuntu 10.10 64-bit). Installed kernel versions: 2.6.32-21 up to 2.6.35.23. The booting halted with the following error: init: .: line 61: can't open '/scripts/functions' Kernel panic - not syncing: Attempted to kill init! Pid: 1, comm: init not tainted Only the first one (2.6.32-21) was working up until know. I asked for help at ubuntuforums.org and i was told to check if there's any problem regarding my graphics card (ATI Radeon). I uninstalled all the ATI-related packages as well as all the unecessary xserver-xorg-video-* drivers that were installed. I then rebooted and from then on ALL of the kernels halt with the same error (i.e. it didn't fix the problematic kernels, it just broke the only one that was working...) Any ideas on what i should try next? Thanks in advance. Pavlos.

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• Cannot Unbind Super Key from Unity

  - by Tom Thorogood

  Due to a graphics card compatibility issue using CrunchBang, I was told that my best option would be to move to 12.04 LTS. I'm trying to get everything configured and personalized the way I'm used to things, but am having some issues with unbinding default Unity shortcuts. I'm used to having all my shortcuts routed through the super key (T for Terminal, W for Web, Up for increased opacity, and so on). I've followed instructions to install compizconfig-settings-manager, and did an advanced search for all keyboard shortcuts binding to the super key, including the Unity shortcuts, but Unity still seems to listen for that keypress, and thus neither compiz nor the keybindings set up in system prefs - keyboard receive the commands I give them. (I did try also to simply change the unity launcher key instead of disabling it as shown below -- neither worked)

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• 12.04 - Connecting Acer X203H monitor to new Dell XPS 15z laptop

  - by Lucy Dixon

  I have installed the latest version of Ubuntu (12.04) on my boyfriend's new Dell XPS 15z laptop. He uses a Microsoft wireless keyboard and mouse, and an Acer X203H monitor with his set-up. No problems with the keyboard or mouse, or with connecting the HP printer, but we just can't get the laptop to talk to the Acer monitor. With his old setup he used a VGA cable to connect machine & monitor. New laptop has no VGA port, but we've bought a VGA to HDMI adaptor to connect to the laptop. Have tried using Fn F2 to change the display from laptop to monitor, but it doesn't see the monitor at all. HELP! Is there a driver I can install from somewhere? Or how can I tell Ubuntu to look for the monitor on another port? Completely in the dark, and about to get in trouble!! Thanks

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