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• Programmaticaly change lightdm autologin session type

  - by marcinpz

  I have problem with lightdm setting autologin session type (using my config tool). Lightdm logs into previously selected session. I see that autologin-session is UNIMPLEMENTED in version 1.2.1. Maybe I can somehow cheat lightdm? but it seems program writes actual state when stopping and overwrites my changes to /home/user/.dmrc and /var/cache/lightdm/user.dmrc. At the current I have two sessions: default and kiosk. in /etc/lightdm/lightdm.conf I have line: user-session=desktop but after I logged into kiosk session it starts all the time. Changing .dmrc and /var/cache/lightdm/dmrc/user.dmrc doesn't work.

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• How do I set the correct monitor resolution with Nvidia drivers for a monitor that does not send EDID?

  - by Torben Gundtofte-Bruun

  I keep having trouble getting the correct monitor resolution - every time I reinstall, I happen to use a newer Ubuntu release and the old tricks I used to know no longer work. Instead of leaving a long trail of questions for every new release, I am looking for a more universal and timeless solution. What's the correct way to set the correct monitor resolution with an Nvidia GPU for a screen that does not send EDID values? Note: This is a "dummy" question -- with the help from the chat, I already found the answer, and I am now going to add my own answer to document a solution that is hopefully universal.

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• How can i modify my Grub 1.99 configurations to install a new kernel?

  - by abhi

  I have configured kernel 3.2.x and made some changes in the kernel. I have compiled it and have the compiled image of the kernel with me. The problem i am facing is as in how to modify the boot loader Grub 1.99 in my case, so that i can boot through the new kernel i have compiled. I looked on net for any tutorials but all of them talked about older versions of Grub ? Can someone please give some info or point me towards some resource ? Currently i have compiled my new custom kernel image and have copied it to /boot.

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• How can I make NetworkManager ignore my wireless card?

  - by ændrük

  I do not want NetworkManager to list or manipulate my wireless card. Can I hide its interface from NetworkManager somehow? I have tried adding this in /etc/network/interfaces, iface wlan0 inet static address 192.168.1.101 netmask 255.255.255.0 gateway 192.168.1.1 wireless-essid Synaptotagmin pre-up wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant.conf post-down killall -q wpa_supplicant and this in /etc/NetworkManager/nm-system-settings.conf, [main] plugins=ifupdown,keyfile [ifupdown] managed=false [keyfile] unmanaged-devices=/org/freedesktop/Hal/devices/net_00_19_e0_57_86_af but NetworkManager Applet still lists and allows me to connect to wireless networks.

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• How to reset main user account?

  - by user8302

  My main account got messed up, as I tried to fix it things went downhills. keyboard mess - tried unity --restore and deleting .gconf2*, fail deleted .* in ~, total havoc. Chromium and Firefox crashes etc. Now, another user account is fully functioning, but I really want my regular username back. Is there any way to completely wipe the settings for the messed up account or copy the profile from the functioning user?

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• Unity: Nautilus folder opens in background

  - by JJD

  I am used to open a folder from the keyboard with a shortcut. The alternatives are: Use Unity Dash with the shortcut SUPER + F to open the Dash File Lens Open Kupfer with the configured shortcut (CTRL + ALT + SPACE, in my case) Then I type the name of the folder and press ENTER if it is selected. However, the window that opens up is not active but in the background. I have to press ALT + TAB to bring it into foreground. I use Ubuntu Precise (12.04.). Question: How can I configure Ubuntu, Unity, Nautilus so newly opened windows become foreground immediately? Edit: This behavior only happens when another application is already open such as GEdit. It does not happen when the only other selectable entity is the Desktop.

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• File system layout for multiple build targets

  - by Yttrill

  I am seeking some ideas for how to build and install software with some parameters. These including target OS, target platform CPU details, debugging variant, etc. Some parts of the install are shared, such as documentation and many platform independent files, others are not, such as 64 and 32 bit libraries when these are separated and not together in a multi-arch library. On big networked platforms one often has multiple computers sharing some large server space, so there is actually cause to have even Windows and Unix binaries on the same disk. My product has already fixed an install philosophy of $INSTALL_ROOT/genericname/version/ so that multiple versions can coexist. The question is: how to manage the layout of all the other stuff?

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• Restrict access to apache2 web root but allow it to subfolders

  - by razor7

  I need to restrict access by password to my web root apache test server (ie http://localhost) but allow access to subfolders (ie: http://localhost/testsite) I did create the .htpasswd and .htaccess, and put the .htaccess to web root (http://localhost) so when trying to access web root, it asks for user and pass, but so does in subfolders (ie: trying to access http://localhost/testite) I want to be asked for password on web root, but not on subfolders. Is that possible?

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• Customizing Texmaker

  - by Gabriel Furstenheim

  I use LaTeX a lot but I find quite obnoxious all the crappy files it leaves behind when you compile: .aux, .log... Fortunately TeXMaker has the option "clean" that deletes all of these. However, I don't like having to remember to click on it every time I'm going to close a document, ie I'd like a button that both closes a document and cleans all that stuff. Any hint as how to do it? I suppose if I knew how to access the program code I'd be able to do it as I'd just have to put together two options that already exist. Thanks

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• Deploying my first website!

  - by test

  I have built a data driven website - an asp.net website, using the entity framework. In my solution I have 4 projects - the web application PresentationLayer, and 3 class libraries - Data Layer, Business and Common Layer. In one of these libraries, Common Layer I have my Model (MyModel.edmx). I have always tested my application on Cassini - Asp.Net Development Server. I have never touched IIS in my life. I bought a domain and hosting on go daddy. My logic tells me to grab my four folders (1 for each layer) and simply move them to the root folder. But I know I'm wrong since then the home page would be mywebsite.org/presentationlayer/default.aspx and second of all I start getting a bunch of errors where files do not load or they are not found. I also know that I need to manage the web.config but I don't have any experience where to start. I'm not sure if this is a problem but I also have a web service included in my presentation layer.

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• Suggestion for setting web application parameters

  - by user40730

  I'm creating a web application on GWT. I'm using MVP pattern with activities and places. I have a xml config file containing some parameters to be used by the application. Content of this xml file is sent to the client using HttpRequest; I'm using a singleton class to hold the information from the xml file. Right now, the application is getting the data when the user starts the application in the home page, that is working well. Now, since I'm using activities and places, a user can bookmark a page and starts the application in any other page (Place). And here comes the problem: Since I'm using some of the information from the xml file to set some ui widgets, I have to check if the xml config file was read and the application already has the parameters (I do this by checking the singleton class). But the xml file is read by using an HttpRequest, so I got errors 'cause the application needs some parameters to initialize some ui widgets, but these parameters aren't ready on time. I was thinking on using an synchronous request to fix the problem, but it seems complicated and not recommendable to do that. So, I'd like to hear some other suggestions. Thanks.

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• Should I use a config file or database for storing business rules?

  - by foiseworth

  I have recently been reading The Pragmatic Programmer which states that: Details mess up our pristine code—especially if they change frequently. Every time we have to go in and change the code to accommodate some change in business logic, or in the law, or in management's personal tastes of the day, we run the risk of breaking the system—of introducing a new bug. Hunt, Andrew; Thomas, David (1999-10-20). The Pragmatic Programmer: From Journeyman to Master (Kindle Locations 2651-2653). Pearson Education (USA). Kindle Edition. I am currently programming a web app that has some models that have properties that can only be from a set of values, e.g. (not actual example as the web app data confidential): light-type = sphere / cube / cylinder The light type can only be the above three values but according to TPP I should always code as if they could change and place their values in a config file. As there are several incidents of this throughout the app, my question is: Should I store possibly values like these in: a config file: 'light-types' = array(sphere, cube, cylinder), 'other-type' = value, 'etc = etc-value a single table in a database with one line for each config item a database with a table for each config item (e.g. table: light_types; columns: id, name) some other way? Many thanks for any assistance / expertise offered.

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• Samba issue with sharing directories on NTFS/FAT32 (Mounted Drives) ???

  - by Microkernel

  Hi guys, I have some strange problems with Samba server. I am using samba Version 3.5.4 on Ubuntu 10.10. I have two windows-xp machines, one on VirtualBox on Ubuntu and another office laptop. Windows machine on VBox has no issues in accessing the shared folders, but the laptop is not able to access all the shared content. The issue faced on laptop is = Shared folders on Ext3 drives have no issues in accessing, but the contents shared on NTFS and FAT32 drives (mounted ones) are not accessible. When I try to open the shared folder, it asks for user name and password, but doesn't accept when I provide it. (even if I provide admin login details!!!). I changed workgroup value to the domain_name in office laptop, but still the problem persists... Here is the smdb.conf I am using... [global] workgroup = XXX.XXX.ORG server string = %h server (Samba, Ubuntu) map to guest = Bad User obey pam restrictions = Yes pam password change = Yes passwd program = /usr/bin/passwd %u passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* . unix password sync = Yes syslog = 0 log file = /var/log/samba/log.%m max log size = 1000 dns proxy = No usershare allow guests = Yes panic action = /usr/share/samba/panic-action %d guest ok = Yes [homes] comment = Home Directories [printers] comment = All Printers path = /var/spool/samba read only = No create mask = 0700 printable = Yes browseable = No [print$] comment = Samba server's CD-ROM path = /cdrom force user = nobody force group = nobody locking = No Workgroup Was defined as "HOMENET" before, changed it to domain name on the office laptop thinking it was the problem, but for no avail Thanks in advance Regards, Microkernel

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• Network printer gets disabled occasionally

  - by Yossi Farjoun

  I'm running Ubuntu 10.04 and have a HP-Laserjet-3005P network printer. Occasionally (perhaps related to rebooting) the printer, which is setup as the default printer, becomes disabled. After realizing that I'm not getting anything printed, I must then open printing preferences and click on "enabled". Then it prints happily until the next time that it becomes disabled... Any ideas why this is happening and/or how I could fix it? I know I'm giving very little information, I can't think of anything else to give...if there's something I should be providing, please let me know.

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• Where to place php libraries/extensions?

  - by gdaniel

  I am new to a lot of server configurations and options. I want to add extra php libraries/extensions to my server. Where do I add them? (I am on a CENTOS 6.5 VPS) For example, I want to add the phpseclib php extension: Their website instructions are minimum: Usage This library is written using the same conventions that libraries in the PHP Extension and Application Repository (PEAR) used to be written in (current requirements break PHP4 compatibility). In particular, this library needs to be in your include_path: <?php set_include_path(get_include_path() . PATH_SEPARATOR . 'phpseclib'); include('Net/SSH2.php'); ?> It tells me how to use it, but it doesn't tell me where to add the actual extension files. Should I added it under? usr/local/lib ? usr/local/lib/php ? usr/local/lib/php/pear ? Or can I add it under public_html? Also, my VPS has several users under /home/.. is that away to make the library available for only one user?

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• Optimising Lookups with the Cache Transform (Video)

  Doing the same lookup multiple times can cause you to do more work than necessary.  With the Cache Transform you can get rid of a lot of this work and in this video we show you how.

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• Display system information

  - by Robottinosino

  I would like output akin to that of OSX's system_profiler (https://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man8/system_profiler.8.html) On Ubuntu, I have to string a few utilities togeter: uname -a, lshw, ifconfig, etc... and then extract the list of installed software packages... Is there a single, simple facade to getting human readable system info from the CLI?

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• Increase Servers folder depth limit for running scripts?

  - by MeltingDog

  I have a CMS on my site that utilises TinyMCE (the WYSIWYG text editor). The issue is that TinyMCE cannot browse for files (example: images) on the web server. I get the error: Error 324 (net::ERR_EMPTY_RESPONSE): The server closed the connection without sending any data. I have been told this may be occurring because the server is configured to limit the folder depth for running scripts. Unfortunately I am primarily a front end developer so I am not really sure how to go about changing/viewing this. I have access to WHM and cPanel. Does anyone know how to adjust this?

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• How to configure Google sitemap links in Wordpress? (without editing its HTML or PHP source code)

  - by Alexander Farber

  I run a Wordpress 3.7.1–de_DE site, but don't have much experience with it yet. When my site comes up in a Google search, there are 2 Google sitemap links displayed underneath: One of them points to a non-existent webpage /imprint though and I had to add a page at that URL to workaround this (and I want the URL actually be /impressum anyway since the site is in German and has German URLs). How to configure Google sitemap links in Wordpress (without editing its HTML or PHP source code)?

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• Flash Retirement - HTML to be "the one"

  - by RichMill

  I will update this blog post as we get closer to the retirement of the Flash portal. As you might have read the support.oracle.com  flash site will be replaced with what you see in supporthtml.oracle.com,  once we get the rest of the features and functions ported over to the html site. The HTML site is written using Oracle's ADF stack. So we are now pretty much 100% eating our own dog food.  More details to follow.

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• Is it possible to change the group list shown on the application launcher?

  - by Grobbendonk

  I just installed Unity, on Ubuntu 10.10, to try it out. I've tried fiddling with a few things, but I can't work out how the applications are grouped and listed. I mean - if I click on the Applications in the launcher, we get the list of applications installed, with the option to narrow the selection by group. i.e. |Search box|All applications|Accessories|Games|Internet|Media|Office|System| My question is where that list is generated - my machine is mostly for work, so the games have been uninstalled (and I get a "there are no games on this box" message, which is nice), and there's a stack of other stuff I'd like to see under a new group of "work" or something. Obviously, a logical follow-up - how does unity know how to classify the applications into those groups? Is it the info in the .desktop links to them?

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• Wine settings to correct color palette?

  - by alfC

  I have a Windows application (Kidspiration 3 Starter), that when running under wine 1.4 in Ubuntu 12.04 shows a completely distorted color palette that makes the interface unusable. See screenshot. What is usually the way to correct this? Is there a particular wine library that I should switch to native? Other details: wineHQ list Kidspiration 2.1 as "garbage", however version 3 installation and program works, except for the colors.

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• PowerXpress error with Driver Catalyst. How can I fix it?

  - by J03Bukowski

  I have install Ubuntu 11.10 64bit on my Hp Dv6-3150el. My Notebook has two graphics cards: lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02) 01:00.0 VGA compatible controller: ATI Technologies Inc Madison [AMD Radeon HD 5000M Series] I tried to install the proprietary graphics drivers ''fglrx'' available in "Additional Drivers", which does not give me 3D graphics acceleration (and I can't install those post-release). Then I can try to download and install from the website (I tried the version that Catalyst 11.8 11.12). The installation goes perfectly (I followed this guide and others), except that when I configure Xorg.conf file: sudo aticonfig --initial PowerXpress error: Cannot stat '/usr/lib64/fglrx': No such file or directory Failed to initialize libglx for discrete GPU

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• Configuring an Engenius 3500

  - by dsiddens

  The title speaks to only half of the issue: the other half are the settings in Ubuntu and the sequences therein. The computer in this issue does receive internet with the external antenna jack at the back being fed with a simple magnetic base antenna designed for putting on the roof of an automobile. However, that signal is weak and the Engenius with an external antenna (Rootenna ~15db gain) and ehternet wire will supply a stronger, faster signal. I've set the Engenius to the desired source and entered the correct WEP password. The lights on the Engenius indicate that it's connected to the access point. At the Ubuntu side of this I've worked to no avail changing settings with "Edit Connections" to the point I'm Ask(ing)Ubuntu for help. I have and have RTFM for Engenius 3500 There is an embarrassing side note to this issue: At one time I had the Engenius working! It seems that I can't recall the settings and sequences I used way back when. And I may as well confess to not knowing the Command Line. I'm a GUI guy. Thank you for your time, Doug

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• How can I remove the IM status entries from the messaging indicator?

  - by spoonfood

  On 11.10: I know how to remove the email & u1 entries using blacklist/remove from /usr/share/blablabla_youknowwhere but I see no entries or solutions on how to remove only the status entries, as I dont use any IMs, only mail & u1. I suspect its hardcoded, please let me be wrong. but if it is so, maybe someone enlightened got a diff/patch, although I fear it will lead to dependency hell (compiling wise)

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