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• Basket Analysis with #dax in #powerpivot and #ssas #tabular

  - by Marco Russo (SQLBI)

  A few days ago I published a new article on DAX Patterns web site describing how to implement Basket Analysis in DAX. This topic is a very classical one and is also covered in the many-to-many revolution white paper. It has been also discussed in several blog posts, listed here in historical order: Simple Basket Analysis in DAX by Chris Webb PowerPivot, basket analysis and the hidden many to many by Alberto Ferrari Applied Basket Analysis in Power Pivot using DAX by Gerhard Brueckl As usual, in DAX Patterns we try to present the required DAX formulas in a way that is easy to adapt to specific models. We also try to show a good implementation from a performance point of view. Further optimizations are always possible in DAX. However, in order to keep the model simple to adapt in different scenarios, we avoid presenting optimizations that would require particular assumptions or restrictions on the data model. I hope you will find the Basket Analysis pattern useful. Even if you do not need it today, reading the DAX formula is a good exercise to check your knowledge of evaluation contexts in DAX. For example, describing how does it work the following expression is not a trivial task! [Orders with Both Products] := CALCULATE (     DISTINCTCOUNT ( Sales[SalesOrderNumber] ),     CALCULATETABLE (         SUMMARIZE ( Sales, Sales[SalesOrderNumber] ),         ALL ( Product ),         USERELATIONSHIP ( Sales[ProductCode], 'Filter Product'[Filter ProductCode] )     ) ) The good news is that you can use the patterns even if you do not really understand all the details of the DAX formulas you are using! Any feedback on this new pattern is very welcome.

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• Nautilus file share for multiple users is not working. Only owner gets access.

  - by Niklas

  I have always had trouble setting up samba shares with ubuntu. In the past I've tried getting it to work by configuring /etc/samba/smb.conf but never achieved what I wanted. Last time I managed to get it working by making a share with nautilus built in file sharing (which utilises samba). Now when I try do it again I doesn't work. (running ubuntu 10.10 Desktop x64) What I'm trying to achieve is a share which is available for multiple users (those who are in the same group) and not just the owner (who also is included in the group). As it is now I can connect with only the owner, the others are getting an error when I try to connect with windows 7. All the users are within the same group and the folder permissions are 770. The files and folders have the correct group settings. I think there is no restrictions in the User Settings for the other users blocking them and I marked "make available to other users (or whatever it says)" in the file sharing dialog. What can I do?

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• How to diagnose network speed drops

  - by Luis Alvarado

  Here is the image of System Monitor first: The graph shows the cycle the connection goes through. After 10 to 15 seconds it drops to 0 KB/S, then goes up to the Max speed (120 KB/S) then it repeats. dmesg shows the following during that time: [ 6066.757211] wlan0: send auth to 00:26:5a:b5:05:7b (try 1/3) [ 6066.804405] wlan0: authenticated [ 6066.804578] rt2800pci 0000:02:01.0 wlan0: disabling HT/VHT due to WEP/TKIP use [ 6066.805016] wlan0: associate with 00:26:5a:b5:05:7b (try 1/3) [ 6066.809218] wlan0: RX AssocResp from 00:26:5a:b5:05:7b (capab=0x431 status=0 aid=1) [ 6066.809581] wlan0: associated [ 6066.810203] bridge-eth0: disabling the bridge on dev down [ 6066.810239] bridge-eth0: down [ 6066.810254] bridge-eth0: detached [ 6066.810309] /dev/vmnet: open called by PID 1679 (vmnet-bridge) [ 6066.810322] /dev/vmnet: hub 0 does not exist, allocating memory. [ 6066.810355] /dev/vmnet: port on hub 0 successfully opened [ 6066.810366] bridge-wlan0: device is wireless, enabling SMAC [ 6066.810369] bridge-wlan0: up [ 6066.810372] bridge-wlan0: attached [ 6067.010285] userif-2: sent link down event. [ 6067.010290] userif-2: sent link up event. This also repeats with Wired or Wireless connections. How can I diagnose this changes in the network efficiently.

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• Restart problem after installing graphical card driver

  - by Tim

  My laptop is Lenovo T400, running Ubuntu 10.10. My problem: I just run jockey-gtk and installed ATI/AMD proprietary FGLRX graphics driver. But after reboot, there is a short period of graphical "Ubuntu" and then instead of starting X-window it completely changed to command line to ask me to login. Even after login and then issuing xinit, it still failed to start X. To solve this problem: I followed this post, where one person suggested to you can simply write sudo apt-get remove fglrx This worked for me. If it doesn't work, then try sudo apt-get remove xorg-driver-fglrx and restart. I actually don't need the driver anyway, so I issued the first command after login under command line. But after reboot, the situation is even worse, and there is now even no command-line interface to ask me login, instead the screen is completely blank with just some ambient light in the background and Ubuntu is hanging there probably forever. So I have no chance to try the second command the person suggested. I was wondering what I can do now to solve my problem? Thanks and regards!

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• Ubuntu Server Read-Only Filesystem Issue

  - by Scott Deutsch

  We are running a virtual machine server with multiple virtual machines with ubuntu server edition 12.04 and every so often (usually after updates via webmin it seems), the hard-drive turns into read-only filesystem. Only two of the virtual machines get affected by this problem (that I noticed so far). What could be causing this issue? What could we try to fix this problem? Has anyone else had this problem before? If so, what did you do to fix it? If I use Aptitude instead of webmin, it will not turn into into a read-only filesystem. Though this could be a coincidence. Could it be a webmin issue? Thanks. UPDATE 1 Looks like this is not an update/webmin issue at all. How I know this is because one of the virtual servers is a git server and it turned into a read-only filesystem out of the blue today. With this new info provided to you, what should I try? Thanks.

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• Nexus 7 Possibly Bricked

  - by user214186

  I have a 1st gen Nexus 7 (32GB). I used the steps at https://wiki.ubuntu.com/Nexus7/Installation to successfully install Ubuntu 13.04 desktop onto the tablet. It was working fine and then I decided to upgrade to Ubuntu Touch. I booted the tablet into fast boot mode but the commands 'adb devices' and 'sudo fastboot devices' would not see the device. I am performing these steps from an Ubuntu 12.04 desktop PC. Prior to installing 13.04 the device was seen fine. I made the mistake of performing the 'Device factory reset' step from https://wiki.ubuntu.com/Touch/Install - Step 2. Now when I try to boot the device I get the following: mount: mounting /dev on /root/dev failed: no such file or directory mount: mounting /dev on /root/sys failed: no such file or directory mount: mounting /proc on /root/proc failed: no such file or directory Targe filesystem doesn't have requested /sbin/init. No init found. Try passing init= bootarg. BusyBox v1.20.2 (Ubuntu 1:1.20.0-0ubuntu1) built-in shell (ash) Enter help for a list of built-in commands. (initramfs) I have searched the web but every reference to this problem is from people who still have ADB access to the device so they can recover by flashing the tablet again. I can attach a keyboard to the USB port and access the BusyBox console but I don't know what steps to do to recover from my error. Any suggestions would be helpful. Thanks

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• Can't access any functions after chown command.

  - by explorex

  I am not being to access any functions in my desktop and I don't have an OS besides Ubuntu and I am new to Ubuntu. I think I rebooted my computer thinking that Google Chrome crashed. I opened Google Chrome but it showed opening message but never opened so I restarted my computer. and when my system was loading (I was playing with keyboard dont know what I typed) and when by Ubuntu loaded, I was unable to access anything some of characteristics are listed below: I cannot hear any sound I cannot access wired ethernet connection on the right corner where I usually enable to access internet and I have no internet. There is no local apache server either. when ever I try to start apacer I get setuid must be root or something. When I type sudo then I get message setuid must be root. I cannot access orther external storage devices like pendrive and portable hard drive and cannot mount my other drives with FAT32 filesystem. When I try to start my apache webserver with out typing sudo then I get message cannnot open socket or something like it. I remember also doing command chown -R www-data / earlier and got error message I cannot shutdown my computer, it only logs off

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• cannot mount root filesystem on 10.04

  - by howaryoo

  I tried to apply the recommendation of question: Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) After running that command: sudo mount --bind /dev /mnt/dev I get this error message: mount: mount point /mnt/dev does not exist fdisk -l returns /dev/sda1 /dev/sda2 /dev/sda5 do I need to mount sda2 and sda5? Edited after @psusi's comment: /dev/sda1 is the boot file system It seems that I need to mount sda2 or sda5. Here is what I tried: (I tried this on a virtual machine so the sda(s) are now vda(s) ) ubuntu@ubuntu:~$ sudo fdisk -l Disk /dev/vda: 19.3 GB, 19327352832 bytes 16 heads, 63 sectors/track, 37449 cylinders Units = cylinders of 1008 * 512 = 516096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0008eece Device Boot Start End Blocks Id System /dev/vda1 * 3 496 248832 83 Linux Partition 1 does not end on cylinder boundary. /dev/vda2 498 37448 18622465 5 Extended Partition 2 does not end on cylinder boundary. /dev/vda5 498 37448 18622464 8e Linux LVM ubuntu@ubuntu:~$ ubuntu@ubuntu:~$ ubuntu@ubuntu:~$ sudo mount -t ext4 /dev/vda5 /mnt mount: wrong fs type, bad option, bad superblock on /dev/vda5, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so ubuntu@ubuntu:~$ sudo mount -t ext2 /dev/vda5 /mnt mount: wrong fs type, bad option, bad superblock on /dev/vda5, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so ubuntu@ubuntu:~$ Any info that can help me rescue that server would be greatly appreciated!

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• Full screen blackout using allegro in codeblocks

  - by Armando Ortiz

  I'm very interested in game programming and I'm taking my first steps alone. So I installed allegro. Although Dev-C++ didn't work, Code::Blocks compiled successfully. I started out with this basic program: #include <allegro.h> int main(){ allegro_init(); install_keyboard(); set_gfx_mode( GFX_AUTODETECT, 640, 480, 0, 0); readkey(); return 0; } END_OF_MAIN(); The problem comes in when I try to run it. It opens the little window as always, but rapidly blacks out my whole screen. I press any key and it takes me back to the little window telling me that it finished, which means the program worked. But I try any other program with allegro, like: #include <allegro.h> int x = 10; int y = 10; int main(){ allegro_init(); install_keyboard(); set_gfx_mode( GFX_AUTODETECT, 640, 480, 0, 0); while ( !key[KEY_ESC] ){ clear_keybuf(); acquire_screen(); textout_ex( screen, font, " ", x, y, makecol( 0, 0, 0), makecol( 0, 0, 0) ); if (key[KEY_UP]) --y; else if (key[KEY_DOWN]) ++y; else if (key[KEY_RIGHT]) ++x; else if (key[KEY_LEFT]) --x; textout_ex( screen, font, "@", x, y, makecol( 255, 0, 0), makecol( 0, 0, 0) ); release_screen(); rest(50); } return 0; } END_OF_MAIN(); And the same thing happens over and over again! Is there something I'm doing wrong?

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• Wifi not working on Acer Aspire One D270

  - by Dani

  brand new baby linux user here, never used Ubuntu or any other linux OS before, so be gentle and use short words! I installed Ubuntu 12.04 on my new Acer Aspire One D270-F61C/KF netbook (it's a Japanese computer which had Japanese windows preinstalled, and I decided to take the plunge and try Ubuntu because English Windows costs the earth and stars). Wifi isn't working; I enter my wireless password, it tries to connect for a while, then asks for my password again. And KEEPS ASKING, every few minutes. Wired connection works fine. Wireless card is a Broadcom BCM4313; I have the "additional drivers" checked and installed (I tried unchecking and then reinstalling them in case that would help, no joy, and now my home wifi connection isn't showing up in the list of available connections, argh). I've done a lot of googling and I gather there's a lot of issues with Broadcom cards, but some of the answers are for earlier ubuntu builds and many of them are a bit confusing for a new user. I gather I need to try installing some new drivers other than the proprietary ones provided, but I'm having trouble figuring out how that's done. Anyone got some simple, step by step instructions for me? Please bear in mind, TOTAL N00B. (EDIT): OKAY, got it fixed finally; after suggestions on the Ubuntu forums and messing around with drivers, what finally worked was installing Wicd. Not... using Wicd, for some reason, just installing it fixed it. ...I CHOOSE NOT TO QUESTION IT.

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• puImportError: No module named pyexpat

  - by Candy Gupta

  Whenever I try to launch 'hotot' I get this errors. This error also appears if i try something stupid in terminal along with "No Module named gdm" Error in sys.excepthook: Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/apport_python_hook.py", line 64, in apport_excepthook from apport.fileutils import likely_packaged, get_recent_crashes File "/usr/lib/python2.7/dist-packages/apport/__init__.py", line 1, in <module> from apport.report import Report File "/usr/lib/python2.7/dist-packages/apport/report.py", line 16, in <module> from xml.parsers.expat import ExpatError File "/usr/lib/python2.7/xml/parsers/expat.py", line 4, in <module> from pyexpat import * ImportError: No module named pyexpat I am on Ubuntu 12.04 python 2.7.3. I found similar problem here https://github.com/Kindari/SublimeXdebug/issues/5 but did not work. as asked below I am inserting this too ls /usr/lib/python2.7/lib-dynload/ audioop.so _codecs_cn.so _codecs_jp.so crypt.so _ctypes_test.so _elementtree.so _io.so _multibytecodec.so _sqlite3.so _bsddb.so _codecs_hk.so _codecs_kr.so _csv.so _curses_panel.so _heapq.so _json.so _multiprocessing.so _testcapi.so bz2.so _codecs_iso2022.so _codecs_tw.so _ctypes.so _curses.so _hotshot.so _lsprof.so Python-2.7.egg-info

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• Applying Interactive Sorting to Multiple Columns in Reporting Services

  - by smisner

  A nice feature that appeared first in SQL Server 2008 is the ability to allow the user to click a column header to sort that column. It defaults to an ascending sort first, but you can click the column again to switch to a descending sort. You can learn more about interactive sorts in general at the Adding Interactive Sort to a Data Region in Books Online. Not mentioned in the article is how to apply interactive sorting to multiple columns, hence the reason for this post! Let’s say that I have a simple table like this: To enable interactive sorting, I open the Text Box properties for each of the column headers – the ones in the top row. Here’s an example of how I set up basic interactive sorting: Now when I preview the report, I see icons appear in each text box on the header row to indicate that interactive sorting is enabled. The initial sort order that displays when you preview the report depends on how you design the report. In this case, the report sorts by Sales Territory Group first, and then by Calendar Year. Interactive sorting overrides the report design. So let’s say that I want to sort first by Calendar Year, and then by Sales Territory Group. To do this, I click the arrow to the right of Calendar Year, and then, while pressing the Shift key, I click the arrow to the right of Sales Territory Group twice (once for ascending order and then a second time for descending order). Now my report looks like this: This technique only seems to work when you have a minimum of three columns configured with interactive sorting. If I remove the property from one of the columns in the above example, and try to use the interactive sorting on the remaining two columns, I can sort only the first column. The sort on the second column gets ignored. I don’t know if that’s by design or a bug, but I do know that’s what I’m experiencing when I try it out!

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• Suddely internet is not accessible

  - by user189708

  I am going crazy here. One day everything was working fine. I turned pc off and went to sleep. Next day turn pc on and cannot access internet (from any browser). The situation is: I cannot open any webpage from browser (tried Firefox and Epiphany) and cannot receive emails in thunderbird. BUT if I run firefox from console as sudo, I can use it as usual. I can access Skype and pretty much any other network stuff (like installing software with apt-get etc.), also if I use Astrill VPN software I can access webpages even running without sudo. I haven't install any software or anything like that for several days = I have not a clue what could cause this. Just by the way, other Win PC in our home has no issue. Here is what I have tried to fix this: I have tried to restart my pc, router, modem - multiple times I have tried to change permissions to my firefox profile I have tried to completely re-install firefox and start with blank profile, thus no addons I have tried to change /etc/resolv.conf to an IP of my router (it was 127.0.1.1) I have tried to change my hostname (from tomino-NB to tominoNB) I think I might try even more stuff. None of it works. Can someone please try to help me. Thank you UPDATE 1: I have tried this: Removing resolv.conf - Didn't help Also "ping" and "dig" commands cannot resolve host UPDATE 2: I have tried to edit nameservers in resolv.conf but still no effect. I can ping router as well as I can ping outside IP. So definitely just some DNS issue. Is it possible that something is rewriting path to resolv.conf and using different file? UPDATE 3: I have just restarted PC and everything works now... resolv.conf went back to nameserver 127.0.1.1 . I have no clue what happened that it works again...

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• PeopleSoft 8.52 iPad Certification

  - by Dave Bain

  One of the real gems in the PeopleTools 8.52 release is the certification of PeopleSoft applications running in the Safari Browser on an iPad.  It is nice that PeopleSoft is not constrained by technology like Adobe Flex/Flash, so announcements like this "Adobe drops plans for mobile Flash support" do not limit our mobile solution to custom mobile development. There are parts of PeopleSoft applications that operate better on iPads than others.  One of the best is Workcenters.  Workcenters were new to PeopleTools 8.51 and we are starting to see more and more adoption of them.  Workcenters are roll based landing pages that eliminate difficult navigation by providing access to most links, pages, and reports a user in a role needs.  One of the nicest I’ve seen is the Supply Manager Workspace.  Here are some links to screenshots of what a WorkCenter looks like on an iPad: Here's the standard PeopleSoft Login Page The Supply Manager Workspace looks great full screen on an iPad iPad has a great user interface to zoom, here's a screenshot of an upclose view of an analytic. Touch one of the analytics and it drills into the details. Go ahead and give it a try.  WorkCenters and Dashboards are starting to show up across applications.  For a quick one to try, navigate to the PeopleTools->Integration Broker->Integration Network WorkCenter.  It’s new in PeopleTools 8.52.

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• Brother MFC-J470DW scan function "Check Connection"

  - by user292599

  I have a Brother MFC-J470DW printer that I have connected to a Linux desktop (running Ubuntu 14.04) using a wireless router network. The printer works fine for printing and copying, but now I want to add the scan function. To set up the scan function, I went to the Brother web page for this printer: http://support.brother.com/g/b/downloadlist.aspx?c=eu_ot&lang=en&prod=mfcj470dw_us_eu_as&os=128 and under Scanner Drivers selected "Scanner driver 64bit (deb package)", "Scan-key-tool 64bit (deb package)", and "Scanner Setting file (deb package)". For each package, I clicked the EULA, and selected "open with Ubuntu Software Center". Then after the USC window pops up, I click on Install and the red line goes from left to right. In each case, the USC window then had a green checkmark and the Install box changes to Reinstall (that's how you know it worked). So now I try it out. Hitting the Scan button on the printer, selecting "Scan to file", and hitting ok produces the message "Check Connection". I checked the Brother Linux Information FAQ (scanner) page and the 14th question seems the same as mine: When I try to use the scan key on my network connected machine, I receive the error "Check connection" or I can not select anything except "scan to FTP". I explored the solution given for this FAQ, but found from ifconfig that I am already using eth0, the default setting, so presumably that is not the problem. I also found brscan-skey installed in /usr/bin and did drrm@drrmlinux2:~$ brscan-skey -t drrm@drrmlinux2:~$ brscan-skey but that didn't help - I still get the "Check connection" message. What can you suggest to fix this problem?

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• Trying to make ZeroRadiant work on Lubuntu 11.10

  - by maniat1k

  I'm looking to use ZeroRadiant to work on ubuntu, it's to create maps on urban terror, I know that works on windows and mac. I found this HOWTO but could not make it work. I've got stock on this when I do. ~/ZeroRadiant-src$ scons target=radiant,q3map2 config=release at the end shows me this: collect2: ld returned 1 exit status scons: *** [build/release/radiant/radiant.bin] Error 1 scons: building terminated because of errors. there's a note on the how to that says: If you get other errors, you may try asking for help in the GtkRadiant IRC channel, which is listed on the main ZeroRadiant page. the page does not there and I could find that IRC channel. EDIT thanks to @jokerdino in the chat sow me this If you have the proprietary NVIDIA driver installed and you get the following error when executing the build target above: /usr/bin/ld: cannot find -lGL collect2: ld returned 1 exit status scons: *** [build/release/radiant/radiant.bin] Error 1 scons: building terminated because of errors. then you should install one of the nvidia-glx-dev* packages as mentioned above in Step A, then try to execute the main build target to compile GtkRadiant again. I don't have nvidia; I do have ATI AMD Radeon HD 6320, and looks like it works. GL_VERSION: 4.1.11251 Compatibility Profile Context GL_VENDOR: ATI Technologies Inc. GL_RENDERER: AMD Radeon HD 6320 Graphics I'm think I do have video issues but.. how do I detect this? how can I continue?

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• fix vmware workstation 9 installation in ubuntu 12.10

  - by Alessandro Belloni

  i have opened this thread because i upgraded to ubuntu 12.10 beta (kernel 3.5) and i have problem with vmware workstation 9: "Unable to change virtual machine power state: Cannot find a valid peer process to connect to" does anyone got the same problem? Clean install of ubuntu 12.10 (daily build) installed vmware 9 and patched but not working, my laptop is a Lenovo T420 with Nvidia Optimus Technology. i can't patch correctly and get the thinks be builded correctly, my configuration is ubuntu 12.10 fresh installation vmware workstation 9 fresh install on top of a lenovo thikpad t420 with nvidia optimus video card. have a problems.. this message is show whem i try to apply the patch.. # Stopping VMware services: VMware Authentication Daemon done At least one instance of VMware VMX is still running. Please stop all running instances of VMware VMX first. VMware Authentication Daemon done Unable to stop services # How can i stop the vmware services to apply the patch? This message is too show when i try to patch again # ./patch-modules_3.5.0.sh /usr/lib/vmware/modules/source/.patched found. You have already patched your sources. Exiting # But the vmware is not working, and i can’t unstall…

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• (GUIDE) How to install and configure Mariadb on Ubuntu 12.10+

  - by Myh Yazid

  First of all open terminal and type this sudo apt-get install python-software-properties I recommend you to use MariaDB version 10.0.4 Alpha because when im installed it i've got no errors compare with 5.5 version. 2: Put this commands in terminal sudo apt-get install software-properties-common sudo apt-key adv --recv-keys --keyserver hkp://keyserver.ubuntu.com:80 0xcbcb082a1bb943db sudo add-apt-repository 'deb http://download.nus.edu.sg/mirror/mariadb/repo/10.0/ubuntu quantal main' If you're using other version please change the "quantal" to your ubuntu version codename eg : 13.10 saucy 13.04 raring 12.10 quantal (im using this version) 12.04 precise` 3: Type in this commands sudo apt-get update sudo apt-get install mariadb-server 4: after finished installed mariadb you need to run this sudo mysql_install_db sudo /usr/bin/mysql_secure_installation If have problem consider look at the end of this post for solution 5: You're done!! Problems solving In step 3 if you get problem, like unmet dependencies, Go to /etc/apt/preferences.d then create new file called "mariadb" Then,Consider to put the below code in the mariadb file that you just created Package: * Pin: origin <mirror-domain> Pin-Priority: 1000 In step 4 you may get 2 errors first occur when you run sudo mysql_install_db Solution : open another terminal and do this killall mysqld 2.second eror may occur when you running sudo /usr/bin/mysql_secure_installationcommand Solution : try doing this cd /etc/init.d and try run ./mysqld start if ./mysqld doesnt exists use ./mysql start as in my case That's All Thank you for reading. I wrote this based on my experience installing this.Any errors you get community here can help you if i cant..tq .

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• MATLAB: Best fitness vs mean fitness, initial range

  - by Sa Ta

  Based on the example of Rastrigin's function. At the plot function, if I chose 'best fitness', on the same graph 'mean fitness' will also be plotted. I understand well about 'best fitness' whereby it plots the best function value in each generation versus iteration number. It will reach value zero after some times. I don't understand about 'mean fitness'in the graph plotted. What do those 'mean fitness' values mean? How does the 'mean fitness' graph help to understand Rastrigin's function? What are the meaning of the term initial population, initial score and initial range? I wish to have a better understanding of these terms. The default value for initial range is [0,1]. Does it mean that 0 is the lower bound (lb) and 1 is the upper bound (ub)? Do these values interfere with the lb and ub values I set in the constraints? I try to better understand about lb and ub. If my lb is 0 and ub is 5, does it mean that my final point values will be within 0 and 5? If I know the lb and ub for my problem is between 0 and 5, do I just set the initial range as [0,5] at all times and may I assume that this is the best option for initial range, and I need not try it with any other values?

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• How to install rgdal on Ubuntu 12.10?

  - by radek

  I'm strugling to install rgdal library on Ubuntu 12.10. Installation from within R results in error: Error: gdal-config not found The gdal-config script distributed with GDAL could not be found. If you have not installed the GDAL libraries, you can download the source from http://www.gdal.org/ If you have installed the GDAL libraries, then make sure that gdal-config is in your path. Try typing gdal-config at a shell prompt and see if it runs. If not, use: --configure-args='--with-gdal-config=/usr/local/bin/gdal-config' with appropriate values for your installation. ERROR: configuration failed for package ‘rgdal’ * removing ‘/home/rdk/R/x86_64-pc-linux-gnu-library/2.15/rgdal’ Warning in install.packages : installation of package ‘rgdal’ had non-zero exit status R-sig-Geo, this two SE questions and other websites pointed me to the requirements of libgdal1-dev. But when I tried sudo apt-get install libgdal1-dev I end up with another error message Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: libgdal1-dev : Depends: libgdal-dev but it is not going to be installed E: Unable to correct problems, you have held broken packages. Again - when I try to install libgdal-dev another dependencies error shows up The following packages have unmet dependencies: libgdal-dev : Depends: libgeos-dev but it is not going to be installed Depends: libspatialite-dev but it is not going to be installed Again trying libgeos-dev gives message: Depends: libgeos-c1 (= 3.3.3-1.1) but 3.3.3-2~precise2 is to be installed E: Unable to correct problems, you have held broken packages. and libspatialite-dev: Depends: libspatialite3 (= 3.1.0~rc2-1ubuntu1) but 3.1.0~rc2-2~precise1 is to be installed Is there any way to tame those dependencies and have rgdal running in Ubuntu? My sessionInfo() R version 2.15.1 (2012-06-22) Platform: x86_64-pc-linux-gnu (64-bit)

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• XNA CustomModelAnimationSample problem

  - by Mentoliptus

  I downloaded the official tutorial from:CustomModelAnimationSample It works fine but when I try to replicate it in my project, it fails to load the Tag property in my model. Is found that the probelm is in the line: skinnedModel = Content.Load<Model>("DudeWalk"); This line loads the model from the DudeWalk.fbx file and with the custom SkinnedModelProcessor. It loads the animations data in the model. After the line the Tag property is full. I stepped into the method and it went to the custom ModelData class. I copied everything from the projects CustomModelAnimationWindows and CustomModelAnimationPipeline to my solution and set all the references. I tried the same line of code and couldn't step in the method. It called the default method or model constructor and after the line the model's Tag propetry was null. I have to load the model through my custom SkinnedModelProcessor class, but how I tell the game to use this class? In the tutroail CustomModelClass the line is changed to: model = Content.Load<CustomModel>("tank"); So I assumed that I have to set the generic type to a custom model class, but the first example works without it. If anyone has some useful advice or some other helpful link, I'll be happy to try it.

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• Ubuntu Gnome 14.04 Instal Nvidia drivers

  - by user3524668

  I have been looking all over the web, and tried every suggestion I found to get the nvidia drivers working on my computer with Ubuntu Gnome 14.04, with no luck. Every time I install a driver or choose to use the driver from addition drivers, when I reebot, I cannot log in again. It gets stuck at the logo screen. I need to go to the ALT + CTRL + F1 to purge all nvidia traces so I can get back. Is it possible to install the new nvidia drivers? I just upgraded from 13.10 to 14.04, I have an Asus N550VJ which has hybrid graphics with Intel 4000 / Nvidia 750M What Im looking for is to try the primus functionality to disable the discreet card and enable it whenever I want to play or run heavy graphic stuff. When I was in 13.10 I was using bumblebee, but, since, the nvidia prime is supposedly mature enough, I wanted to try it. Is this possible for Ubuntu Gnome 14.04. I read there was a bug with gdm, but also, saw that it was already fixed. Thank you very much for your help. Im not that well versed in linux.

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• Restoring GRUB2 on Software RAID 0 after Windows 7 wiped it using LiveCD

  - by unknownthreat

  I have installed Ubuntu 10.10 on my system. However, I need to install Windows 7 back, and I expect that it would alter GRUB and it did. Right now, my partition on my Software RAID 0 looks like this: nvidia_acajefec1 is Ubuntu 10.10 and nvidia_acajefec3 is Windows 7. I've been following some guides around and I am always stuck at GRUB not able to detect the usual RAID content. I've tried running: sudo grub > root (hd0,0) GRUB complains it couldn't find my hard disk. So I tried: find (hd0,0) And it complains that it couldn't find anything. So I tried: find /boot/grub/stage1 It said "file not found". Here's the text from the console: ubuntu@ubuntu:~$ grub Probing devices to guess BIOS drives. This may take a long time. [ Minimal BASH-like line editing is supported. For the first word, TAB lists possible command completions. Anywhere else TAB lists the possible completions of a device/filename. ] grub> root (hd0,0) root (hd0,0) Error 21: Selected disk does not exist grub> find /boot/grub/stage1 find /boot/grub/stage1 Error 15: File not found Fortunately, I got one person suggesting that what I've been trying to do is for GRUB Legacy, not GRUB2. So I went to the suggested website, ** (http://grub.enbug.org/Grub2LiveCdInstallGuide) **try to look around, and try: ubuntu@ubuntu:~$ sudo fdisk -l Unable to seek on /dev/sda This is just the step 2 of the instruction in the http://grub.enbug.org/Grub2LiveCdInstallGuide and I cannot proceed because it cannot seek /dev/sda. However, ubuntu@ubuntu:~$ sudo dmraid -r /dev/sdb: nvidia, "nvidia_acajefec", stripe, ok, 488397166 sectors, data@ 0 /dev/sda: nvidia, "nvidia_acajefec", stripe, ok, 488397166 sectors, data@ 0 So what now? Do you have an idea for how to make fdisk see my RAID array on live cd (Ubuntu 10.10)? Honestly, I am lost, very lost in trying to restore GRUB2 on this software RAID 0 system right now.

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• How to force remove a package if dpkg removal script fails?

  - by fodon

  I'm trying to remove a package where I deleted the /etc/init.d/disco-master file (in an attempt to remove the package manually). I want to remove the disco-master package. How do I do this now? This is what happens when I do sudo apt-get remove disco-master: removing disco-master ... invoke-rc.d: unknown initscript, /etc/init.d/disco-master not found. dpkg: error processing disco-master (--remove): subprocess installed pre-removal script returned error exit status 100 Errors were encountered while processing: disco-master E: Sub-process /usr/bin/dpkg returned an error code (1) When I do sudo apt-get install --reinstall disco-master I get the following: You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: disco-master : Depends: disco-node (= 0.4.2+nmu1) but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). When I do sudo apt-get -f install I get this: Unpacking disco-node (from .../disco-node_0.4.2+nmu1_amd64.deb) ... dpkg: error processing /var/cache/apt/archives/disco-node_0.4.2+nmu1_amd64.deb (--unpack): trying to overwrite '/usr/lib/disco/master/ebin/disco.app', which is also in package disco-master 0.4.1 No apport report written because MaxReports is reached already dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) Errors were encountered while processing: /var/cache/apt/archives/disco-node_0.4.2+nmu1_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1) When I run sudo apt-get remove disco-node I get the following: Package disco-node is not installed, so not removed You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: disco-master : Depends: disco-node (= 0.4.1) but it is not going to be installed Depends: python-disco (= 0.4.1) but 0.4.2+nmu1 is to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). When I did sudo dpkg -P --force-all disco-master I got: Removing disco-master ... invoke-rc.d: unknown initscript, /etc/init.d/disco-master not found. dpkg: error processing disco-master (--purge): subprocess installed pre-removal script returned error exit status 100 Errors were encountered while processing: disco-master

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• Ubuntu won't suspend anymore, but it did upon install.

  - by Bruce Connor

  I fresh installed Ubuntu 10.10 back when it came out, and my laptop was suspending fine. All of a sudden, I can't get my laptop to suspend anymore. It's an HP Pavilion dv2-1110, but I don't think it's a hardware issue, here's why: It suspended fine upon first install. I haven't installed any new kernels since then, but I have installed tons of packages, so it's probably a package. The suspend and hibernate options disappeared from the shutdown menu. If I press my keyboard's suspend button (or if I close the lid) I get the following message: If I try the command pmi action suspend, I get the error message: Error org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Hal was not provided by any .service files. If I try the command echo -n mem > sudo /sys/power/state I get absolutely no output and no visible effect. What might be causing this behavior? I thought a list of installed packages might be useful, but it's huge and I don't know how to post it here in collapse/expand mode or something. EDIT:Just in case someone asks, none of the installed packages are kdm or anything like that (which would justify the lack of options in gnome's shutdown menu).

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