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• Ubuntu 12.04 does not power off

  - by G K

  I'm not able to power off Ubuntu, which was working fine a couple of days ago. When I click shut down, a blank screen appears and stays like that forever. It does not power off by itself and I'm forced to physically power off using the power button. I've even tried 'sudo shutdown now' and 'sudo shutdown -h now' and both don't seem to work! Please suggest some fix for this problem. Thanx in advance. Edit: Restart works fine. Also 'sudo poweroff' doesn't work!

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• Disable error_log. Error_log flooding

  - by user36646

  Hello, i got an webserver running and old version of gambio (xt:commerce fork). The error_log in the dir over the public_html is flooding with errors. About 30mb in 15min. How can I disable this log? I can't fix all the errors. Here are a few examples of the errors: [warn] mod_fcgid: stderr: PHP Notice: Undefined variable: key in /usr/www/users/foo//includes/classes/class.inputfilter.php on line 98 [warn] mod_fcgid: stderr: PHP Notice: Undefined index: in /usr/www/users/foo/templ [warn] mod_fcgid: stderr: in /usr/www/users/foo/templates/gambio/source/inc/xtc_show_category_sectionc.inc.php on line 47 They are all errors of: "mod_fcgid: stderr". I tried to grep "error_log" and "error_report" in the public html dir, but i did not find anything. Here is a part from the phpinfo(): PHP Version 4.4.9 System Linux foobar.com 2.6.26-2-686-bigmem #1 SMP Sat Dec 26 09:26:36 UTC 2009 i686 Build Date Feb 11 2010 13:00:33 Configure Command './configure' '--prefix=/usr/local/php4' '--with-config-file-path=/etc/php4/cgi' '--with-gd' '--with-jpeg-dir' '--with-png-dir' '--with-tiff-dir' '--with-ttf' '--enable-force-cgi-redirect' '--enable-safe-mode' '--with-zlib' '--enable-ftp' '--enable-url-includes' '--enable-gd-native-ttf' '--enable-trans-sid' '--enable-dbase' '--with-db4' '--with-ldap' '--enable-bcmath' '--enable-calendar' '--enable-memory-limit' '--with-mcal=/usr' '--with-bz2' '--with-mod-dav' '--enable-sockets' '--with-kerberos' '--with-imap-ssl' '--enable-gd-imgstrttf' '--with-freetype-dir' '--with-curl' '--with-mysql' '--with-mhash' '--with-gdbm' '--with-pgsql' '--with-gettext' '--with-xml' '--with-mcrypt' '--with-openssl' '--with-dom' '--without-pear' '--enable-exif' '--with-zip' '--enable-wddx' '--disable-cli' '--enable-fastcgi' '--with-imap' '--enable-xslt' '--with-xslt-sablot=/usr/local/lib' '--enable-mbstring' '--with-dom-xslt' '--with-dom-exslt' Server API CGI/FastCGI Virtual Directory Support disabled Configuration File (php.ini) Path /home/httpd/php-ini/foo/php.ini PHP API 20020918 PHP Extension 20020429 Zend Extension 20050606 Debug Build no Zend Memory Manager enabled Thread Safety disabled Registered PHP Streams php, http, ftp, https, ftps, compress.bzip2, compress.zlib **Configuration PHP Core** Directive Local Value Master Value allow_call_time_pass_reference On On allow_url_fopen Off Off always_populate_raw_post_data Off Off arg_separator.input & & arg_separator.output & & asp_tags Off Off auto_append_file no value no value auto_prepend_file no value no value browscap no value no value default_charset no value no value default_mimetype text/html text/html define_syslog_variables Off Off disable_classes no value no value disable_functions no value no value display_errors On On display_startup_errors Off Off doc_root no value no value docref_ext no value no value docref_root no value no value enable_dl On On error_append_string no value no value error_log no value no value error_prepend_string no value no value error_reporting 2039 2039 expose_php On On extension_dir /usr/local/php4/lib/php/extensions/no-debug-non-zts-20020429 /usr/local/php4/lib/php/extensions/no-debug-non-zts-20020429 file_uploads On On gpc_order GPC GPC highlight.bg #FFFFFF #FFFFFF highlight.comment #FF8000 #FF8000 highlight.default #0000BB #0000BB highlight.html #000000 #000000 highlight.keyword #007700 #007700 highlight.string #DD0000 #DD0000 html_errors On On ignore_repeated_errors Off Off ignore_repeated_source Off Off ignore_user_abort Off Off implicit_flush Off Off include_path .:/usr/local/lib/php/ .:/usr/local/lib/php/ log_errors Off Off log_errors_max_len 1024 1024 magic_quotes_gpc On On magic_quotes_runtime Off Off magic_quotes_sybase Off Off max_execution_time 120 120 max_input_nesting_level 500 500 max_input_time -1 -1 memory_limit 128000000 128000000 open_basedir /usr/www/users/foo:/usr/home/foo:/tmp:/usr/local/lib/php:/usr/local/rmagic:/usr/www/users/he/_system_ /usr/www/users/foo:/usr/home/foo:/tmp:/usr/local/lib/php:/usr/local/rmagic:/usr/www/users/he/_system_ output_buffering no value no value output_handler no value no value post_max_size 128000000 128000000 precision 14 14 register_argc_argv On On register_globals Off Off report_memleaks On On safe_mode Off Off safe_mode_exec_dir no value no value safe_mode_gid Off Off safe_mode_include_dir no value no value sendmail_from no value no value sendmail_path /usr/sbin/sendmail -t /usr/sbin/sendmail -t serialize_precision 100 100 short_open_tag On On SMTP localhost localhost smtp_port 25 25 sql.safe_mode Off Off track_errors Off Off unserialize_callback_func no value no value upload_max_filesize 128000000 128000000 upload_tmp_dir /usr/foo/foo/.tmp /usr/foo/.tmp user_dir no value no value variables_order EGPCS EGPCS xmlrpc_error_number 0 0 xmlrpc_errors Off Off y2k_compliance Off Off

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• JMS Topic message size

  - by jjoshi

  Our application uses a topic to push message to a small set of subscribers. what sort of things should i look for when modeling a jms message with respect to the size of the actual message to be pushed. Are there any known limits or is application server specific? Any best practices or suggestions on this topic (pun unintended)?

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• Innovative seminar topic

  - by sijith

  Hi, I don't know whether its the right place to ask this question. I want some good seminar topic which suits for a cooperate culture company. I need topic either in management side or technical side which is innovative and interesting which gives much interest to employees

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• Complete Off-Page Optimization Company is a Requirement in Today's World

  When you own a website, the things you can do to the website to make it attractive are limited. But, the ways of off-page optimization are numerous. Some of the most popular ways being SEO, link building, article submission, etc. You can seek the help of any complete off page optimization company to take care of optimizing your website.

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• 3 Vital Off-Page SEO Methods

  Gathering backlinks is at the crux of the off-page SEO challenge conundrum. HTML is a frustrating challenge as well, but if technical knowledge is not your forte then here are some off-page SEO tips for you:

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• Web Search Engine Optimization - 3 Important Off-Page Strategies

  Trying to improve your Web search engine optimization plan? Did you know that what you are doing off your website to improve search engine optimization (SEO) is just as important as what you do directly on your website? The major search engines are just as concerned with your "off-page" tactics and behavior; and what you are doing everywhere else on the Web will definitely figure into their algorithms for search result rankings.

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• Ten Easy Off-Page SEO Tips For Website Owners

  Websites and SEO (search engine optimisation) go hand in hand and there is rarely a case of marketing where you do not see the two words in the same sentence; the same goes for off-page SEO techniques. These techniques will quickly help build links and bring more traffic to your website. Here is some advice about the best off-page tricks the "page rank one" websites use.

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• 6 Major Off Page Optimization Factors in SEO

  Off page optimization is the backbone of any SEO campaign and is time consuming. Off page optimization is a tedious job which needs to be done on a regular basis and one should have the real patience to see the results.

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• Understanding Off Page Optimisation

  Many website owners who are doing their own SEO may have amazing content that is really well optimised, all the keywords in the right locations and the right amount and all live links but still have poor search engine rankings. What they sometimes miss off is "off the page optimisations".

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• Best Of 2010

  - by Mike Dietrich

  Hi there, in Australia, Japan, Singapore and many other countries it's already 2011 - but Germany and the US is still some time until midnight :-) To round up the year you'll find a few off-topic pictures from 2010. You might click on the pictures to get a better resolution. Enjoy ... Moscow - Red Square Tokyo Train - Cell Phone Mania Great Chinese Wall near Beijing Hong Kong by Night Yearing Station Winery, Yarra - Victoria, Australia Dublin, Ireland - during the ash cloud - no comment - Liberty It's sometime foggy in SF Singapore Opera Stockholm - Gamla Stan Unbelievable white beach at Camps Bay, Clifton, Capetown Words fail me ... Mike

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• Get number of posts in a topic PHP

  - by Wayne

  How do I get to display the number of posts on a topic like a forum. I used this... (how very noobish): function numberofposts($n) { $sql = "SELECT * FROM posts WHERE topic_id = '" . $n . "'"; $result = mysql_query($sql) or die(mysql_error()); $count = mysql_num_rows($result); echo number_format($count); } The while loop of listing topics: <div class="topics"> <div class="topic-name"> <p><?php echo $row['topic_title']; ?></p> </div> <div class="topic-posts"> <p><?php echo numberofposts($row['topic_id']); ?></p> </div> </div> Although it is a bad method of doing this... All I need is to know what would be the best method, don't just point me out to a website, do it here, because I'm trying to learn much. Okay? :D Thanks.

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• Turn off backlight without X server commands

  - by Vi

  Fn + F6 - backlight turns off immediately, image stays (visible if shine something at the display) xset dpms force {off,suspend,standby} - backlight turns off slowly, image cleared. How to programmatically just turn off backlight on Acer Extensa 5220 laptop in Linux? It should work fast and should not touch image (unlike xset method). Ideally if I could rapidly switching backlight off and on emulate lower_than_minimum brightness level (ideally - to be hardly visible (but visible) at night).

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• Antec Fusion Black LCD won't turn off on system shutdown

  - by Niklas

  Hi! I've been struggling a while with getting the iMON LCD/IR-receiver on my Antec Fusion Black case to shutdown together with the system (XBMC Live 10 - ubuntu based). But it won't. When it's turned off the LCD still lights up the whole room. Many have proposed the "solution" of setting the machine into hibernation instead but that however won't work for me, since I'm unable to suspend my system. It is the LCD/IR-module that prevents me from suspending and I haven't found a solution to properly unload it on suspending (it's way above my linux knowledge). I need help with getting the display to turn off the backlight when the system is turned off. Can anyone please help me? If anyone also has the knowledge on how to get the eject function to work on my Antec Veris rm200 remote I would be very grateful, I was told about that it could get fixed with irexec but I do not know how since I haven't been able to find a good tutorial on the subject. Thank you for helping me!

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• Disqus ads are disqusting and here is how you turn them off

  - by Gopinath

  After couple of months I spent sometime yesterday reviewing my blog and coziie.com to see if everything is fine. Disqus, the best commenting system and an unusual suspect was looking weird. Commenting sections of my sites are displayed links of third party sites which I was not aware of. The content is annoying to me and I believe my site users are also annoyed. I don’t remember configuring something in disqus to display ads or earn money by promoting other’s content. Why on earth I would like to shows content of someone else’s website right inside comments section and annoy readers? Here is a screen grab of comment section that shows ads.   It turns to be disqus automatically enabled a feature called as “Discovery” to all publishers who upgraded the commenting system to the latest release. I remember upgrading commenting system to the latest release couple of months ago but I don’t remember specifically allowing disqus to spam my comment section!! I’m extremely unhappy with the way disqus automatically enabled spamming comment sections in the name of so called new features that benefits bloggers. How to turn of Discovery or Ads in Disqus I turned them off as soon as I noticed them and it’s very easy to do that. Here are the steps to be followed to turn off ads in comments Login in to disqus Switch to Settings tab Click on Discovery tab Choose the option Just comments Save the settings.  Though it’s easy to turn off the ads, it would have been nice if disqus did not enable them by default. Hey guys at disqus, you lost my trust and from now onwards I’ll double check before opting in to any new features.

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• Google Analytics Visitors drop-off for certain region of site only

  - by crmpicco

  I have an issue with the tracking on my site where I have seen a dramatic drop off of visitors to the site from a certain region. I have four regions on my site at the moment, these are UK, EU, US and RoW (Rest of the World). The UK, EU and US regions are unaffected, only the RoW region suffers this drop-off. I have included a screen shot below from my GA account, which shows this effect. My GA code, which is included on every page on the site is below. I have changed the UA account number intentionally for this example. There have been no changes made to the GA account or the tracking code in a live environment for some considerable time, but for some reason I am seeing the drop-off for this region only. In the code below I am not tracking page views on certain pages as I have event tracking setup for these pages. <script type="text/javascript"> var _gaq = _gaq || []; _gaq.push(['_setAccount', 'UA-18721873-5']); _gaq.push(['_setCookiePath', '/row/']); if ( typeof(p_page) != 'undefined') { // do nothing if user is on above pages // N.B. there are a series of conditions in this if statement checking that we are not on a particular page } else { _gaq.push(['_trackPageview']); } </script>

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• Apply a BSU patch manually in Off-line Mode

  - by adejuanc

  To apply patch or patches in Off-line mode.Note that you will need at least the patch-catalog.xml and one patch jar file.BSU Patch Installation Off-line Mode------------------------------------------------------------------------------------------------------------Apply patch or patches in Off-line modeNote: To apply the patch in offline mode refer to the section 8 Using the Command-Line Interface of Using the Command-Line Interface guide availablehere - http://download.oracle.com/docs/cd/E14571_01/doc.1111/e14143/toc.htmSteps:1. Make sure you have the following files inside Folder WLS_ORACLE_HOME/utils/bsu/cache_dir- patch-catalog.xml- XXXX.jarNote that XXXX is the patch ID, is just a reference name.2. Apply the patch by running the following command:> cd WLS_ORACLE_HOME/utils/bsu/> ./bsu.sh -prod_dir=WLS_ORACLE_HOME/wlserver_10.3 -patchlist=<Patch_Id> -verbose -installFor example:> ./bsu.sh -prod_dir=/Oracle/Middleware/wlserver_10.3 -patchlist=XXXX -verbose -installAfter this the patch should be applied successfully.3. You can view the report of applied patches by running the following command:> ./bsu.sh -report -patch_id_mask=<Patch_Id>For example: > ./bsu.sh -report -patch_id_mask=XXXX4. Restart the server and watch the standard output logs to verify the installation.5. If you have more patches to apply go to step 1.6. Repeat the process on each Instance Server including the admin Server.

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• How to switch off? [closed]

  - by Xophmeister

  While I've programmed software for many years, I've only recently started doing so professionally and have noticed a bit of a problematic pattern. I hope this is the best place to pose such a question, as I am interested in others' experiences and solutions... Writing software is, by its nature, a cerebral exercise. When coding for my own sake, I would do so until I was satisfied; even if that meant going all night. Now I'm coding in exchange for goods and services, on projects that are inherently uninteresting to me, I want to 'switch off' when it's time to go home. Maybe you consider that to be a 'bad attitude', but I just don't feel that whatever I'm working on is worth caring about after-hours. Besides, my employer doesn't exactly have the infrastructure required to make out-of-office changes; I can't just clone a repo and even remote login is a PITA. Anyway, the problem I'm experiencing is that, while I'm not particularly overworked or stressed, if I'm faced with a problem, my brain will work on a solution. Generally, it won't give up. Hence I can't switch off and, sometimes, the problem or the solution is significant enough that it disrupts my sleep. While, paradoxically, this doesn't seem to affect my coding ability, it can have a profound impact of the rest of my life. I get increasingly low as I get tired. So far, the best solutions I've found are writing little notes on the matter (and, say, e-mailing them back to my work address) and exercise. Neither of these can switch me off entirely and, as the week progresses, exercise especially becomes untenable due to tiredness. TL;DR How can you stop from being a coding zombie?

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• Can't turn off display - 13.10 / iMac

  - by user209883

  I can find no way to completely turn off the display on a late 2013 iMac running 13.10 (Saucy). In the power management settings, I configured the display to "turn off" after one minute to see what would happen. The dimness goes all the way down and everything disappears, BUT the LED backlight remains on. When I try the "xset dpms force off" command, absolutely nothing happens--the command is accepted (no error or warning), but nothing changes. I then wiped everything clean and installed 13.04 (Raring). Both methods (dpms and waiting for sleep) work perfectly there, so something has changed in this new version. The problem can be replicated simply by booting from a bootable USB stick. So, I also gave version 14.04 (Trusty) a try in this manner and it has the exact same issues as 13.10. P.S. I would gladly use 13.04, but the catch there is that I can not get the network card to function. I have spent a week now reading everything i can find on both of these matters with no luck at all. Thank you in advance for any advice.

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• What topic in computer science is this?

  - by jasonbogd

  Hi, I am trying to figure out what 'topic' this is called, so I can learn more about it. Basically, I'm talking about designing my applications's architecture. I'm not talking about algorithms. More like -- this class should have these methods and these instance variables, and communicate with this class in this way, this class should have these responsibilities etc. Can anybody tell me what the name of this topic is called and how I can get better at doing this? Thanks.

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• Naive Bayesian for Topic detection using "Bag of Words" approach

  - by AlgoMan

  I am trying to implement a naive bayseian approach to find the topic of a given document or stream of words. Is there are Naive Bayesian approach that i might be able to look up for this ? Also, i am trying to improve my dictionary as i go along. Initially, i have a bunch of words that map to a topics (hard-coded). Depending on the occurrence of the words other than the ones that are already mapped. And depending on the occurrences of these words i want to add them to the mappings, hence improving and learning about new words that map to topic. And also changing the probabilities of words. How should i go about doing this ? Is my approach the right one ? Which programming language would be best suited for the implementation ?

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• dojo.event.topic.publish("show_detail");

  - by chetan

  hello, I am beginner if dojo and can't understand following line of code in dojo dojo.event.topic.publish("show_detail");

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• The best Bar on the globe is ... in Seoul/Korea

  - by Mike Dietrich

  As you know already sometimes I write about things which really don't have to do anything with a database upgrade. So if you are looking for tips and tricks and articles about that topic please stop reading now Actually I'm not a lets-go-to-a-bar person. I enjoy good food and a fine dessert wine afterwards. But last week in Seoul/Korea Ryan, our local host, did ask us after a wonderful dinner at a Korean Barbecue place if we'd like to visit a bar. I was really tired as I flew into Seoul overnight from Sunday to Monday arriving Monday early morning, getting shower, breakfast - and then a full day of very good and productive customer meetings. But one thing Ryan mentioned catched my immediate attention: The owner of the bar collects records and has a huge tube amp stereo system - and you can ask him to play your favorite songs. The bar is called "Peter, Paul and Mary" - honestly not my favorite style of music. And I even coulnd't find a webpage or an address - only that little piece of information on Facebook. But after stepping down the stairs to the cellar my eyes almost poped out of my head. This is the audio system: Enourmus huge corner horn loudspeakers from Western Electric. Pretty old I'd suppose but delivering an incredible present dynamics into the room. And plenty of tube equipment from Jadis, NSA Labs and Shindo Laboratories Western Electric 300B Limited amps from Tokyo. And the owner (I was so amazed I had simply forgotten to ask for his name) collects records since 40 years. And we had many wishes that night. Actually when we did enter Peter, Paul and Mary he played an old Helloween song. That must have been destiny. A German entering a bar in Korea and the owner is playing an old song by one of Germany's best heavy metal bands ever. And it went on with the Doors, Rainbow's Stargazer, Scorpions, later Deep Purple's Perfect Strangers, a bit of Santana, Carly Simon, Jimi Hendrix, David Bowie ...Ronnie James Dio's Holy Diver, Gary Moore, Peter Gabriel's San Jacinto ... and many many more great songs ... Of course we were the last guests leaving the place at 2am in the morning - and I've never ever had a better night in a bar before ... I could have stayed days listening to so many records  ... Thanks Ryan, that was a phantastic night! -Mike

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• Setting up OpenGL camera with off-center perspective

  - by user5484

  Hi, I'm using OpenGL ES (in iOS) and am struggling with setting up a viewport with an off-center distance point. Consider a game where you have a character in the left hand side of the screen, and some controls alpha'd over the left-hand side. The "main" part of the screen is on the right, but you still want to show whats in the view on the left. However when the character moves "forward" you want the character to appear to be going "straight", or "up" on the device, and not heading on an angle to the point that is geographically at the mid-x position in the screen. Here's the jist of how i set my viewport up where it is centered in the middle: // setup the camera // glMatrixMode(GL_PROJECTION); glLoadIdentity(); const GLfloat zNear = 0.1; const GLfloat zFar = 1000.0; const GLfloat fieldOfView = 90.0; // can definitely adjust this to see more/less of the scene GLfloat size = zNear * tanf(DEGREES_TO_RADIANS(fieldOfView) / 2.0); CGRect rect; rect.origin = CGPointMake(0.0, 0.0); rect.size = CGSizeMake(backingWidth, backingHeight); glFrustumf(-size, size, -size / (rect.size.width / rect.size.height), size / (rect.size.width / rect.size.height), zNear, zFar); glMatrixMode(GL_MODELVIEW); // rotate the whole scene by the tilt to face down on the dude const float tilt = 0.3f; const float yscale = 0.8f; const float zscale = -4.0f; glTranslatef(0.0, yscale, zscale); const int rotationMinDegree = 0; const int rotationMaxDegree = 180; glRotatef(tilt * (rotationMaxDegree - rotationMinDegree) / 2, 1.0f, 0.0f, 0.0f); glTranslatef(0, -yscale, -zscale); static float b = -25; //0; static float c = 0; // rotate by to face in the direction of the dude float a = RADIANS_TO_DEGREES(-atan2f(-gCamera.orientation.x, -gCamera.orientation.z)); glRotatef(a, 0.0, 1.0, 0.0); // and move to where it is glTranslatef(-gCamera.pos.x, -gCamera.pos.y, -gCamera.pos.z); // draw the rest of the scene ... I've tried a variety of things to make it appear as though "the dude" is off to the right: - do a translate after the frustrum to the x direction - do a rotation after the frustrum about the up/y-axis - move the camera with a biased lean to the left of the dude Nothing i do seems to produce good results, the dude will either look like he's stuck on an angle, or the whole scene will appear tilted. I'm no OpenGL expert, so i'm hoping someone can suggest some ideas or tricks on how to "off-center" these model views in OpenGL. Thanks!

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• MP3 files cut off in the Ubuntu One Android app

  - by rudefyet

  I noticed today on my phone (Droid X running Android 2.2.1) that when streaming the Ubuntu One app would skip to the next song before the previous one had finished. Looking into it, one of the mp3s downloaded from the server was only 2.5MB instead of 4.2MB as it shows on the server itself via one.ubuntu.com. It's happened with multiple tracks today (I remember it happening once the first time I used the app too but shrugged it off as a glitch). The app itself shows a star on the playlist item indicating the file was downloaded even though it was apparently cut off for some reason, perhaps lack of good cell coverage, or some sort of dropped connection. It seems like the latter may be happening and instead of showing an error or retrying it just stops and shows the download is complete.

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