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• HTML5 article tag application for the iPad/iPhone

  - by dspencer

  I've used article tags on websites. My understanding and practice is to use the article tag for publication content. I always use HTML/HTML5 tags as their intended purposes and not at will. Recently, I've seen an HTML template that uses the article tag for the non-publication page content such as the content of an About Us page or any other generic page. I asked the why it was used this way and the (vague) explanation was that it had to do with the way the iPad read the tag. Is this true?

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• Any 3D, Isometric, RPG oriented engines?

  - by Don Quixote

  I was wondering if there are any game engines out there that are oriented towards isometric, 3D RPGs such as Diablo 3, Torchlight, Magika, etc.. Most engines I found so far are either oriented towards FPS, such as Cry Engine and UDK, or are far too generic, such as the Irrlicht engine, which will add what I think is unnecessary work on the engine instead of the game. Any chance there are any engines out there that are crafted to be more suitable for RPGs? I would prefer they be in Java, since it's more my forte, but beggars can't be choosers, so C++ is great as well! Thank you.

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• How can I install binutils from source?

  - by sven

  uname -a: Linux ubuntu 3.5.0-23-generic #35-Ubuntu SMP Thu Jan 24 13:05:29 UTC 2013 i686 i686 i686 GNU/Linux root@ubuntu:/home/ubuntu# apt-get source binutils Reading package lists... Done Building dependency tree Reading state information... Done E: Ignore unavailable target release 'stable' of package 'binutils' E: Unable to find a source package for I did apt-get update before typing the command. How can I get binutils? I am using Ubuntu 12.10. I am following the instruction on https://wiki.ubuntu.com/Toolchain/Crosscompilers/ARMEABIToolchain I am stuck at the first line. I did sudo add-apt-repository ppa:germia/archive3 previously, however I got some errors then, I did sudo add-apt-repository --remove ppa:germia/archive3 to undo the setting. I wonder if my problem is related wtih this PPA?

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• Action Controller: Exception - ID not found

  - by Danny McClelland

  Hi Everyone, I am slowly getting the hang of Rails and thanks to a few people I now have a basic grasp of the database relations and associations etc. You can see my previous questions here: http://stackoverflow.com/questions/2714621/rails-database-relationships I have setup my applications models with all of the necessary has_one and has_many :through etc. but when I go to add a kase and choose from a company from the drop down list - it doesnt seem to be assigning the company ID to the kase. You can see a video of the the application and error here: http://screenr.com/BHC You can see a full breakdown of the application and relevant source code at the Git repo here: http://github.com/dannyweb/surveycontrol If anyone could shed some light on my mistake I would be appreciate it very much! Thanks, Danny

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• How do you name your personal libraries?

  - by Mehrdad

  I'm pretty bad with naming things. The only name I can every generically come up with is 'helper'. Say, if I have a header file that contains helping functions for manipulating paths, I tend to put it inside my "helper" directory and call it "path-helper.hpp" or something like that. Obviouslly, that's a bad naming convention. :) I want to have a consistent naming scheme for my folder (and namespace) which I can use to always refer to my own headers and libraries, but I have trouble finding names that are easy to type or remember (like boost)... so I end up calling some of them "helper" or "stdext" or whatnot, which isn't a great idea. How do you find names for your libraries that are easy to remember and easy to type, and which aren't too generic (like "helper" or "std" or "stdext" or the like)? Any suggestions on how to go about doing this?

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• Multiple version of Grub?

  - by DanielGibbs

  I am running Ubuntu 12.04.1 LTS (GNU/Linux 3.2.0-29-generic-pae i686) which according to the Ubuntu documentation contains Grub2. However grub --version gives me grub (GNU GRUB 0.97), but grub-mkconfig --version gives me grub-mkconfig (GRUB) 1.99-21ubuntu3.4 Do I have 2 versions of Grub installed simultaneously? If so, what is the easiest and safest way to remove one. If not, which configuration file should I edit? I have edited /etc/grub.d/40_custom to contain a password, but running update-grub does not appear to include this in the grub.cfg file.

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• monitor multiple work repositories in ODI11g EM

  - by tina.wang

  when you create a domain, by default it will let you specify master/work repository information. This work repository is automatically configured and be directly monitored in EM But your master repository may contain multiple work repositories, how to let EM monitor all them. 1)these work repositories must have been registered in your master repository 2)in weblogic console, generate generic data source for every work repository, eg: jdbc/mySecondWork 3)in odiconsole, create new repository connection for the every work repository, master jndi information is jdbc/odiMasterRepository by default OK, now you can see the work repository status is configured. Btw, there is a bug when the work repository is execution type.

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• After installing mysqli phpmyadmin stop loading

  - by phreakbox

  On Linux host 3.2.0-30-generic #48-Ubuntu SMP Fri Aug 24 16:52:48 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux phpmyadmin won't load after installing mysqlnd. I'm using php5, mysql AND mysqlnd. Maybe mysql and mysqlnd conflicts for phpmyadmin. Problem: If I remove mysqlnd (mysqli support), PHP5 not working with mysqli, PHP5 only works with mysql. (Results for tests: function_exists('mysqli_fetch_all') return FALSE. That's ok. If I installed mysqlnd, php5-mysqlnd, PHP works with mysql + mysqli sumulately. Problems affected after mysqlnd install: After installing mysqli (mysqlnd) support, phpmyadmin won't load. Works PHP5 mysql + mysqlnd. When installing once again phpmyadmin than mysqlnd won't load. PHP PDO and mysql only works.

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• Programmatically adding metatags to Masterpages in Web Forms and MVC [migrated]

  - by Mike Clarke

  Has anyone got any ideas on where we should be adding our SEO metadata in a Web Forms project? Why I ask is that currently I have two main Masterpages, one is the home page and the other one is every other page, they both have the same metadata that’s just a generic description and set of key words about my site. The problem with that is search engines are only picking up my home page and my own search engine displays the same title and description for all results. The other problem is the site is predominantly dynamic so if you type in a search for beach which is a major categories on the site you get 10000 results that all go to different information but all look like a link to the same page to the user. edit It's live here www.themorningtonpeninsula.com

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• Unable to use TL-WN821N

  - by udiw

  Hi, I got a TP-LINK USB wireless module - TL-WN821N, using Ubuntu 10.4 (same problems were also seen in 10.10). From everything I've read online, the usb should work just fine, since the Atheros ar9170 is built into the kernel. However, when I plug it in, it is detected as a USB device, but there is no wlan associated with it, and basically - nothing happens. Am I doing something wrong? what should I do so that the Atheros driver is associated with this device? btw, on Windows it works fine (with the drivers). Some logs: $ uname -mr 2.6.32-28-generic i686 $ lsb_release -d Description: Ubuntu 10.04.2 LTS $ lsusb ... (trimmed) Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 017: ID 0cf3:7015 Atheros Communications, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub $ lsmod |grep ar9 ar9170usb 51296 0 ath 7611 1 ar9170usb mac80211 205402 3 ar9170usb,iwl3945,iwlcore cfg80211 126528 5 ar9170usb,ath,iwl3945,iwlcore,mac80211 led_class 2864 4 ar9170usb,iwl3945,iwlcore,sdhci

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• Predicate delegate in C#

  - by Jalpesh P. Vadgama

  I am writing few post on different type of delegates and and this post also will be part of it. In this post I am going to write about Predicate delegate which is available from C# 2.0. Following is list of post that I have written about delegates. Delegates in C#. Multicast delegates in C#. Func delegate in C#. Action delegate in C#. Predicate delegate in C#: As per MSDN predicate delegate is a pointer to a function that returns true or false and takes generics types as argument. It contains following signature. Predicate<T> – where T is any generic type and this delegate will always return Boolean value. The most common use of a predicate delegate is to searching items in array or list. So let’s take a simple example. Following is code for that. Read More

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• How do I use apt-get to update to the latest kernel?

  - by Bucic

  My current kernel is 3.2.0-26 (my main computer) while on another of my Ubuntu computers, with which I didn't fiddle with unofficial updates, it's 3.2.0-30. Yet the Update manager on my main computer doesn't show available kernel updates. It shows other updates though. I suspect is due to the fact that in the past I installed multiple mainline kernel versions (not recommended versions), up to 3.5* series. What I'm after: Either: Fix automatic kernel updates. Or: Learn about a way to check for the latest official ubuntu kernel version and get it manually (I know how to install kernels from debs) What I have already tried: Uninstalled unused kernels including "the generic one without a number" as per http://askubuntu.com/a/103875/29347 and then also https://ubuntugenius.wordpress.com/2011/01/08/ubuntu-cleanup-how-to-remove-all-unused-linux-kernel-headers-images-and-modules/

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• How do I mount my External HDD with filesystem type errors?

  - by Snuggie

  I am a relatively new Ubuntu user and I am having some difficulty mounting my external 2TB HDD. When I first installed Linux my external HDD was working just fine, however, it has stopped working and I have a lot of important files on there that I need. Before my HDD would automatically mount and no worries. Now, however, it doesn't automatically mount and when I try to manually mount it I keep running into filesystem type errors that I can't seem to get past. Below are images that depict my step by step process of how I am trying to mount my HDD along with the errors I am receiving. If anybody has any idea what I am doing wrong or how to correct the issue I would greatly appreciate it. Step 1) Ensure the computer recognizes my external HDD. pj@PJ:~$ dmesg ... [ 5790.367910] scsi 7:0:0:0: Direct-Access WD My Passport 0748 1022 PQ: 0 ANSI: 6 [ 5790.368278] scsi 7:0:0:1: Enclosure WD SES Device 1022 PQ: 0 ANSI: 6 [ 5790.370122] sd 7:0:0:0: Attached scsi generic sg2 type 0 [ 5790.370310] ses 7:0:0:1: Attached Enclosure device [ 5790.370462] ses 7:0:0:1: Attached scsi generic sg3 type 13 [ 5792.971601] sd 7:0:0:0: [sdb] 3906963456 512-byte logical blocks: (2.00 TB/1.81 TiB) [ 5792.972148] sd 7:0:0:0: [sdb] Write Protect is off [ 5792.972162] sd 7:0:0:0: [sdb] Mode Sense: 47 00 10 08 [ 5792.972591] sd 7:0:0:0: [sdb] No Caching mode page found [ 5792.972605] sd 7:0:0:0: [sdb] Assuming drive cache: write through [ 5792.975235] sd 7:0:0:0: [sdb] No Caching mode page found [ 5792.975249] sd 7:0:0:0: [sdb] Assuming drive cache: write through [ 5792.987504] sdb: sdb1 [ 5792.988900] sd 7:0:0:0: [sdb] No Caching mode page found [ 5792.988911] sd 7:0:0:0: [sdb] Assuming drive cache: write through [ 5792.988920] sd 7:0:0:0: [sdb] Attached SCSI disk Step 2) Check if it mounted properly (it does not) pj@PJ:~$ df -ah Filesystem Size Used Avail Use% Mounted on /dev/sda1 682G 3.9G 644G 1% / proc 0 0 0 - /proc sysfs 0 0 0 - /sys none 0 0 0 - /sys/fs/fuse/connections none 0 0 0 - /sys/kernel/debug none 0 0 0 - /sys/kernel/security udev 2.9G 4.0K 2.9G 1% /dev devpts 0 0 0 - /dev/pts tmpfs 1.2G 928K 1.2G 1% /run none 5.0M 0 5.0M 0% /run/lock none 2.9G 156K 2.9G 1% /run/shm gvfs-fuse-daemon 0 0 0 - /home/pj/.gvfs Step 3) Try mounting manually using NTFS and VFAT (both as SDB and SDB1) pj@PJ:~$ sudo mount /dev/sdb /media/Passport/ NTFS signature is missing. Failed to mount '/dev/sdb': Invalid argument The device '/dev/sdb' doesn't seem to have a valid NTFS. Maybe the wrong device is used? Or the whole disk instead of a partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around? pj@PJ:~$ sudo mount /dev/sdb1 /media/Passport/ NTFS signature is missing. Failed to mount '/dev/sdb1': Invalid argument The device '/dev/sdb1' doesn't seem to have a valid NTFS. Maybe the wrong device is used? Or the whole disk instead of a partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around? pj@PJ:~$ sudo mount -t ntfs /dev/sdb /media/Passport/ NTFS signature is missing. Failed to mount '/dev/sdb': Invalid argument The device '/dev/sdb' doesn't seem to have a valid NTFS. Maybe the wrong device is used? Or the whole disk instead of a partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around? pj@PJ:~$ sudo mount -t vfat /dev/sdb /media/Passport/ mount: wrong fs type, bad option, bad superblock on /dev/sdb, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so pj@PJ:~$ sudo mount -t ntfs /dev/sdb1 /media/Passport/ NTFS signature is missing. Failed to mount '/dev/sdb1': Invalid argument The device '/dev/sdb1' doesn't seem to have a valid NTFS. Maybe the wrong device is used? Or the whole disk instead of a partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around? pj@PJ:~$ sudo mount -t vfat /dev/sdb1 /media/Passport/ mount: wrong fs type, bad option, bad superblock on /dev/sdb1, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so

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• How can I avoid the random restart of the xserver?

  - by Bernd

  I'm using a desktop pc with 64bit Ubuntu 12.04 (Kernel 3.2.0-24-generic). Hardware specs are - Intel Core i7 CPU 860 @ 2,80GHz x 8 - Nvidia GeForce GTS 250 - 750 GB Hard Disk ATA WDC WD7501AALS-00E3A0 (for my /home partition) - 128 GB Solid-State Disk ATA PLEXTOR PX-128M2S (for all other partitions) Since I reinstalled the PC with Ubuntu 12.04 the xserver restarts randomly. Most times when I watch a video in the browser (maybe a flash issue?) but sometimes the restart/crash appears when I'm working in an text-editor. How can I locate the problem? Which information is needed for a useful answer?

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• Module loaded even though it's blacklisted

  - by isakkarlsson

  System: Ubuntu 11.10 Linux gray 3.0.0-12-generic #20-Ubuntu SMP Fri Oct 7 14:50:42 UTC 2011 i686 i686 i386 GNU/Linux I'm trying to blacklist a module (rt2800usb among other) like; $ lsmod | grep rt rt2800usb 22300 0 rt2800lib 48717 1 rt2800usb crc_ccitt 12595 1 rt2800lib rt2x00usb 20092 1 rt2800usb rt2x00lib 48114 3 rt2800usb,rt2800lib,rt2x00usb mac80211 272785 3 rt2800lib,rt2x00usb,rt2x00lib cfg80211 172392 2 rt2x00lib,mac80211 $ emacs /etc/modprobe.d/blacklist.conf and add: blacklist rt2800usb blacklist rt2800lib blacklist rt2x00usb blacklist rt2x00lib and then: $ sudo update-initramfs -u $ sudo reboot But the module are loaded after reboot: $ lsmod | grep rt rt2800usb 22300 0 rt2800lib 48717 1 rt2800usb crc_ccitt 12595 1 rt2800lib rt2x00usb 20092 1 rt2800usb rt2x00lib 48114 3 rt2800usb,rt2800lib,rt2x00usb mac80211 272785 3 rt2800lib,rt2x00usb,rt2x00lib cfg80211 172392 2 rt2x00lib,mac80211 How do I make the changes persist (i.e. have the modules blacklisted) after reboot?

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• Point[] and Tri not "could not be found"

  - by Craig Dannehl

  Hi I'm trying to learn how to load a .obj file using OpenTK in windows Forms. I have seen a lot of examples out there, but I do see almost everyone uses List, and Point[]. Code example show these highlighted like there IDE know what these are; for example List<Tri> tris = new List<Tri>(); but mine just returns "The type or namespace name 'Tri' could not be found" is there an include I need to add or a using I am missing. Currently have this using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; using System.Drawing; using OpenTK; using OpenTK.Graphics; using OpenTK.Graphics.OpenGL;

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• If I were to claim I knew C++, what libraries would you expect me to know?

  - by Peter Smith

  I'm unsure as to the definition of knowing a programming language, so I'm picking C++ as an example. How much does it take to someone to be qualified as knowing C++? Should they just know the basic syntax? Template and generic-programming? Compiler flags and their purposes (Wall, the difference between O1, O2 and O3)? STL? Garbage collection strategies? Boost? Common libraries like zlib, curl, and libxml2?

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• New Development Snapshot

  I've integrated OpenJDK 6 b18. If you're building IKVM from source, you need to download openjdk6-b18-stripped.zip. Changes: Integrated OpenJDK 6 b18. Fixed IKVM.Reflection bug in version number handling (for version parts 32K). Added support for generic parameter custom attributes to IKVM.Reflection (this is missing from June 2006 ECMA CLI spec). Fixed IKVM.Reflection Type.FullName bug. Nested types can also have a namespace...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Kernel module compilation fails when installing vmware tools

  - by nekooee

  When I install WMWare tools, I get this error for vmhgfs: /tmp/vmware-root/modules/vmhgfs-only/filesystem.c:47:28: fatal error: linux/smp_lock.h: No such file or directory compilation terminated. compilation terminated. make[2]: *** [/tmp/vmware-root/modules/vmhgfs-only/filesystem.o] Error 1 make[1]: *** [_module_/tmp/vmware-root/modules/vmhgfs-only] Error 2 make[1]: Leaving directory `/usr/src/linux-headers-3.0.0-12-generic' make: *** [vmhgfs.ko] Error 2 make: Leaving directory `/tmp/vmware-root/modules/vmhgfs-only' If you wish to have the shared folders feature, you can install the driver by running vmware-config-tools.pl again after making sure that gcc, binutils, make and the kernel sources for your running kernel are installed on your machine. These packages are available on your distribution's installation CD. And /mnt/hgfs is empty when sharing. If I run vmware-hgfsclient in a terminal, I get the list of shared folders but /mnt/hgfs is empty.

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• boot issues - long delay, then "gave up waiting for root device"

  - by chazomaticus

  I've had this issue on and off for about two years now. I noticed it on a new (custom built) machine running 10.04 when that first came out, but then it went away until a few months ago. I've gone through a number of hard drive changes but I can't say specifically what if anything I changed hardware-wise to make it stop or start happening. I had assumed upgrading to a modern Ubuntu version would fix the issue, so I installed 12.04 beta on a spare partition last night, but it's still happening. Here's the issue. After grub loads and I select a kernel to boot, the screen goes blank save for a blinking cursor. It sits in this state for many long minutes before it finally gives up and gives me an initramfs shell with the message gave up waiting for root device (and lists the /dev/disk/by-uuid/... path it was waiting for) but no other specific diagnostic information. Now, here's the tricky part. For one, the problem is intermittent - sometimes it progresses from the blinking cursor to the Ubuntu splash boot screen in a few seconds, and once it gets that far it always continues booting fine. The really bizarre thing is that I can "force" it to "find" the root device by repeatedly pressing the space bar and hitting the machine's power button. If I tap those enough, eventually I will notice the hard drive light coming on, at which point it will always continue the boot process after a few seconds. Interestingly, if I wait slightly too long before pressing the power button (30s?), as soon as I press it I get the gave up waiting message and the initramfs shell. I've tried setting up /etc/fstab (and the grub menu.lst or whatever it's called nowadays) to use device names (e.g. /dev/sda1) instead of UUIDs, but I get the same effect just with the device name, not UUID, in the error message. I should also mention that when I boot to Windows 7, there is no issue. It boots slowly all the time just by virtue of being Windows, but it never hangs indefinitely. This would seem to indicate it's a problem in Ubuntu, not the hardware. It's pretty annoying to have to babysit the computer every time it boots. Any ideas? I'm at a loss. Not even sure how to diagnose the issue. Thanks! EDIT: Here's some dmesg output from 10.04. The 15 second gap is where it was doing nothing. I pressed the power button and space bar a few times, and the stuff at 16 seconds happened. Not sure what any of it means. [ 1.320250] scsi18 : ahci [ 1.320294] scsi19 : ahci [ 1.320320] ata19: SATA max UDMA/133 abar m8192@0xfd4fe000 port 0xfd4fe100 ir q 18 [ 1.320323] ata20: SATA max UDMA/133 abar m8192@0xfd4fe000 port 0xfd4fe180 ir q 18 [ 1.403886] usb 2-4: new high speed USB device using ehci_hcd and address 4 [ 1.562558] usb 2-4: configuration #1 chosen from 1 choice [ 16.477824] ata16: SATA link down (SStatus 0 SControl 300) [ 16.477843] ata19: SATA link down (SStatus 0 SControl 300) [ 16.477857] ata3: SATA link down (SStatus 0 SControl 300) [ 16.477895] ata15: SATA link down (SStatus 0 SControl 300) [ 16.477906] ata20: SATA link down (SStatus 0 SControl 300) [ 16.477977] ata17: SATA link down (SStatus 0 SControl 300) [ 16.478003] ata12: SATA link down (SStatus 0 SControl 300) [ 16.478046] ata13: SATA link down (SStatus 0 SControl 300) [ 16.478063] ata14: SATA link down (SStatus 0 SControl 300) [ 16.478108] ata11: SATA link down (SStatus 0 SControl 300) [ 16.478123] ata18: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 16.478127] ata6: SATA link down (SStatus 0 SControl 300) [ 16.478157] ata5: SATA link down (SStatus 0 SControl 300) [ 16.478193] ata18.00: ATAPI: MARVELL VIRTUALL, 1.09, max UDMA/66 After that, it took its sweet time, and I had to keep hitting space bar to coax it along. Here's some more dmesg output from a little later in the boot process: [ 17.982291] input: BTC USB Multimedia Keyboard as /devices/pci0000:00/0000:00 :13.0/usb5/5-2/5-2:1.0/input/input4 [ 17.982335] generic-usb 0003:046E:5506.0002: input,hidraw1: USB HID v1.10 Key board [BTC USB Multimedia Keyboard] on usb-0000:00:13.0-2/input0 [ 18.005211] input: BTC USB Multimedia Keyboard as /devices/pci0000:00/0000:00 :13.0/usb5/5-2/5-2:1.1/input/input5 [ 18.005274] generic-usb 0003:046E:5506.0003: input,hiddev96,hidraw2: USB HID v1.10 Device [BTC USB Multimedia Keyboard] on usb-0000:00:13.0-2/input1 [ 22.484906] EXT4-fs (sda6): INFO: recovery required on readonly filesystem [ 22.484910] EXT4-fs (sda6): write access will be enabled during recovery [ 22.548542] EXT4-fs (sda6): recovery complete [ 22.549074] EXT4-fs (sda6): mounted filesystem with ordered data mode [ 32.516772] Adding 20482832k swap on /dev/sda5. Priority:-1 extents:1 across:20482832k [ 32.742540] udev: starting version 151 [ 33.002004] Bluetooth: Atheros AR30xx firmware driver ver 1.0 [ 33.008135] parport_pc 00:09: reported by Plug and Play ACPI [ 33.008186] parport0: PC-style at 0x378, irq 7 [PCSPP,TRISTATE] [ 33.012076] lp: driver loaded but no devices found [ 33.037271] ppdev: user-space parallel port driver [ 33.090256] lp0: using parport0 (interrupt-driven). Any clues in there?

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• Useful Extension Method for ICloneable

  - by DesigningCode

  In the past, I’ve had to put a type specific clone in each cloneable class, but with extension methods you can write a generic T specific clone class Program { static void Main(string[] args) { var b = new Blah() {X = 1, Y = 2}; var bb = b.Clone(); Console.WriteLine(string.Format("{0} {1}", bb.X, bb.Y)); } } public class Blah : ICloneable { public int X; public int Y; object ICloneable.Clone() { return MemberwiseClone(); } } public static class CloneExtension { public static T Clone<T>(this T o) where T : ICloneable { return (T)o.Clone(); } }

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• What are the typical applications of Lisp macros?

  - by Giorgio

  I am trying to learn some LISP and I have read a lot about the importance of LISP macros so I would like to get some working experience with them. Can you suggest a practical application area that would allow me to use macros to solve a real-world problem, and to understand the usefulness of this programming construct? NOTE This is not a generic what project should I do next question. I am interested to understand which kinds of problems are typically solved by means of LISP macros. E.g., are they good for implementing abstract data types? Why was this construct added to the language? What kinds of problems does it solve that cannot be solved by means of simple functions?

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• Linq to Sql, Repositories, and Asp.Net MVC ViewData: How to remove redundancy?

  - by Dr. Zim

  Linq to SQL creates objects which are IQueryable and full of relations. Html Helpers require specific interface objects like IEnumerable<SelectListItem>. What I think could happen: Reuse the objects from Linq to SQL without all the baggage, i.e., return Pocos from the Linq to SQL objects without additional Domain Model classes? Extract objects that easily convert to (or are) Html helper objects like the SelectListItem enumeration? Is there any way to do this without breaking separation of concerns? Some neat oop trick to bridge the needs? For example, if this were within a repository, the SelectListItem wouldn't be there. The select new is a nice way to cut out an object from the Linq to SQL without the baggage but it's still referencing a class that shouldn't be referenced: IEnumerable<SelectListItem> result = (from record in db.table select new SelectListItem { Selected = record.selected, Text= record.Text, Value= record.Value } ).AsEnumerable();

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• Dotted subdomain name or new domain?

  - by Catalin Ilinca

  I have a company website hosted at www.BRAND.com (where BRAND is a generic name). The company want to develop a "micro website" for one of their campaigns, named "Inspired By BRAND". I have two directions: inspired.by.BRAND.com - which I personally don't like too much. I don't know why but I don't recall any web address similar to this one subdomain.subdomain.domain.com. inspired.BRAND.com - which I this is best suited for it. Fewer dots and similar to "more friendly" addresses subdomain.domain.com. Any hints, guidelines, any thoughts is well appreciated. Thanks in advance

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• Getting the Dell XPS 16 Synaptics touchpad to work after hibernation in Ubuntu.

  - by Aron Rotteveel

  I am currently experimenting with using Ubuntu as a my main OS instead of Windows 7. So far, pretty much everything is working fine, except for an issue that I am having with my touchpad. I have a Dell XPS 16 (1640) with a Synaptics touchpad. It works out of the box, but it seems that it stops working after returning from hibernation mode. This problem has also been addressed in an earlier bug, but judging from this bugreport, it should be fixed by now. I am running the 2.6.35-23-generic-pae kernel. Any ideas?

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