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• Can't get whole picture on the screen of a new monitor

  - by Gillian

  I have a 24inch, VM2453mh-LED, Viewsonic monitor using a Radeon 6570HD video card. Both are new. Viewsonic says the optimum size is 1920x1080. At this size the picture is beautiful, but it overlaps the screen vertically and horizontally. I am using Ubuntu 11.10, the Gnome 3 version, not Unity. On the Overview screen, the vertical icons are nearly off screen. Only the right edge shows. I opened the monitor's control menus to see if I could adjust it, but both the H/V Position and Horizontal Size are grayed out. I tried a 1600x1200 setting, and the picture was in bounds, but the quality was less, and it was stretched horizontally. The two monitor menu options were grayed out just like with the 1920x1080 setting. Can someone tell me how to resolve this problem?

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• D-Link DWA-125 Wireless network card not working after upgrade from 10.04 to 12.04

  - by dava2788

  I upgraded to Ubuntu 12.04 and now the wireless network card D-Link DWA-125 doesn't work. I have the drivers from the official website, But neither recognized during installation. iwconfig: lo no wireless extensions. vmnet8 no wireless extensions. ra0 Ralink STA Link Quality:0 Signal level:0 Noise level:0 Rx invalid nwid:0 invalid crypt:0 invalid misc:0 eth0 no wireless extensions. vmnet1 no wireless extensions. dava@Dava-Ubuntu:~$ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 006: ID 07d1:3c0d D-Link System DWA-125 Wireless N 150 Adapter(rev.A1) [Ralink RT3070] And the chipset: ralink 2870/3070 (rt3070)

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• Why should I use a web framework's template language over python's templating options?

  - by stariz77

  I'm coming from a python CGI background and was wanting to move into something more contemporary and think I have decided upon web.py as the framework I would like to use. In regards to templating, previously I used formatted strings and the string.Template module to effect most of my templating needs. After reading through a few of the templating options I have heard mentioned, I began wondering what the main benefits of using something like the Django or jinja templating options over "native" Python templating options were? Am I just going to be replacing $tmpl_var with {{ tmpl_var }} and s.substitute(tmpl_var=value) with t.render(s), i.e., alternate syntax? or will I gain additional advantages from using these templating systems?

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• Is there a way to play music from a server through the network and have two computers as speakers?

  - by Alvar

  Hi, I have a server (Ubuntu 8.04 server) that I want to use as a music player. I want my laptop Ubuntu 10.04 to be one speaker and my mac pro (mac os x 10.6) to be the other. Okay software is found and setup is done, (thanks for the pictures @JorgeCastro.) all of the softwares in both computers and server is setup how should I continue? http://www.pulseaudio.org/wiki/FirstSteps well if the sound is bad, is there a solution like compressing the sound files before sending them to the speaker? then you could improve sound quality and lower the data stream.

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• Hulu desktop stopped working on my Dell

  - by jwdinkc

  After last weeks flash update Hulu desktop no longer works on my Dell laptop though it still works on my HP Desktop. Here's what CLI tells me on the Dell: Inspiron-1564:~$ huludesktop Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory I tried: sudo apt-get install libvdpau_nvidia.so but got E: Unable to locate package libvdpau_nvidia.so and E: Couldn't find any package by regex 'libvdpau_nvidia.so' Hulu does work through the browser and through XBMC. XBMC just doesn't seem to match the video quality of the Hulu Desktop. I don't really know why a nvidia.so is needed for my Intel graphics that comes on Dell Insiron 1564's. anyway. So, do you guys have a solution?

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• Releasing patches and updates to web service users

  - by Kalidoss.M

  I have written one web services using Java. Its already live (Up & Running). During development I have SVN(repository) + Jira for task maintenance + Maven for building the web services. Now i have some small update for my web services and i have created that task in Jira and committed the files in svn with respect to Jira-Id after all testing, etc.. Say my web services is used by 10 clients, we did not give our source code to them. Is there any steps/procedure available to release patch/updates? Is there any way to render/create the change log at the build time (maven). How do i manage the change log for all version or Patch updates during build time? (Automatically)

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• Would opencv be a good choice for image colour summarization?

  - by codecowboy

  I would like to analyse a set of hundreds of thousands of product images (clothing, electronic goods etc) and retrieve the dominant colours in each. I'm only interested in the top 3 or 4 colours. The aim is to achieve a degree of certainty that x image is mostly red or image y is mostly orange and blue. The images are likely to be colour jpegs of reasonable quality and approximately 100kb in size. I would like to use C# and the solution should run on a Linux server, preferably using open source libraries. Would opencv be a good choice for this? What other libraries or specific algorithms might be helpful?

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• How far can you get in iOS without learning PhotoShop or another graphic design program? [on hold]

  - by Aerovistae

  I'm in the process of learning iOS, and I'm coming from a web dev background where CSS controls 70-90% of the UI, and Python/C++ desktop dev where there are highly customizable UI toolkits for most things. I'm trying to figure out how people make good-looking apps without graphic design skills. You always hear about some 8 year old or 14 year old who made a successful app. So I assume that even if the required code was relatively basic, the app must have looked good if it was a success. But I find it really unlikely that these kids have advanced PhotoShop skills as well as having learned iOS programming at such a young age. Frankly, the same goes for most independent app developers....as they say, unicorns don't exist. So what's the deal? Can you make a good-looking, market quality app without those skills? What are the limitations?

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• Can't control connection bit rate using iwconfig with Atheros TL-WN821N (AR7010)

  - by Paul H

  I'm trying to reduce the connection bit rate on my Atheros TP-Link TL-WN821N v3 usb wifi adapter due to frequent instability issues (reported connection speed goes down to 1Mb/s and I have to physically reconnect the adapter to regain a connection). I know this is a common problem with this device, and I have tried everything I can think of to fix it, including using drivers from linux-backports; compiling and installing a custom firmware (following instructions on https://wiki.debian.org/ath9k_htc#fw-free) and (as a last resort) using ndiswrapper. When using ndiswrapper, the wifi adapter is stable and operates in g mode at 54Mb/s (whilst when using the default ath9k_htc module, the adapter connects in n mode and the bit rate fluctuates constantly). Unfortunately, with this setup I have to run my processor using only one core, since using SMP with ndiswrapper causes a kernel oops on my system. So I want to lock my bit rate to 54Mb/s (or less, if need be) for connection stability, using the ath9k_htc module. I've tried 'sudo iwconfig wlan0 rate 54M'; the command runs with no error but when I check the bit rate with 'sudo iwlist wlan0 bitrate' the command returns: wlan0 unknown bit-rate information. Current Bit Rate:78 Mb/s Any ideas? Here's some info (hopefully relevant) on my setup: Xubuntu (12.04.3) 64bit (kernel 3.2.0-55.85-generic) using Network Manager. My Router is from Virgin Media, the VMDG480. lshw -C network : *-network description: Wireless interface physical id: 1 bus info: usb@1:4 logical name: wlan0 serial: 74:ea:3a:8f:16:b6 capabilities: ethernet physical wireless configuration: broadcast=yes driver=ath9k_htc driverversion=3.2.0-55 firmware=1.3 ip=192.168.0.9 link=yes multicast=yes wireless=IEEE 802.11bgn lsusb -v: Bus 001 Device 003: ID 0cf3:7015 Atheros Communications, Inc. TP-Link TL-WN821N v3 802.11n [Atheros AR7010+AR9287] Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 255 Vendor Specific Subclass bDeviceProtocol 255 Vendor Specific Protocol bMaxPacketSize0 64 idVendor 0x0cf3 Atheros Communications, Inc. idProduct 0x7015 TP-Link TL-WN821N v3 802.11n [Atheros AR7010+AR9287] bcdDevice 2.02 iManufacturer 16 ATHEROS iProduct 32 UB95 iSerial 48 12345 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 60 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 6 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x05 EP 5 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x06 EP 6 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 255 Vendor Specific Subclass bDeviceProtocol 255 Vendor Specific Protocol bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0000 (Bus Powered) iwlist wlan0 scanning: wlan0 Scan completed : Cell 01 - Address: C4:3D:C7:3A:1F:5D Channel:1 Frequency:2.412 GHz (Channel 1) Quality=37/70 Signal level=-73 dBm Encryption key:on ESSID:"my essid" Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s 24 Mb/s; 36 Mb/s; 54 Mb/s Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s Mode:Master Extra:tsf=00000070cca77186 Extra: Last beacon: 5588ms ago IE: Unknown: 0007756E69636F726E IE: Unknown: 010882848B962430486C IE: Unknown: 030101 IE: Unknown: 2A0100 IE: Unknown: 2F0100 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : TKIP Pairwise Ciphers (2) : CCMP TKIP Authentication Suites (1) : PSK IE: Unknown: 32040C121860 IE: Unknown: 2D1AFC181BFFFF000000000000000000000000000000000000000000 IE: Unknown: 3D1601080400000000000000000000000000000000000000 IE: Unknown: DD7E0050F204104A0001101044000102103B00010310470010F99C335D7BAC57FB00137DFA79600220102100074E657467656172102300074E6574676561721024000631323334353610420007303030303030311054000800060050F20400011011000743473331303144100800022008103C0001011049000600372A000120 IE: Unknown: DD090010180203F02C0000 IE: WPA Version 1 Group Cipher : TKIP Pairwise Ciphers (2) : CCMP TKIP Authentication Suites (1) : PSK IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00 iwconfig: lo no wireless extensions. wlan0 IEEE 802.11bgn ESSID:"my essid" Mode:Managed Frequency:2.412 GHz Access Point: C4:3D:C7:3A:1F:5D Bit Rate=78 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=36/70 Signal level=-74 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0,

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• Installing 12.04 through Update Manager on a XP/ubuntu dual-boot

  - by Madeline Mcormick

  I currently have a dual-boot system running XP Pro SP3 with Ubuntu 10.04 LTS. I decided to upgrade to 12.04 using the Update Manager from the network and NOT using ISO CD version. Now that I am in the middle of 12.04 installation, I have this immense fear that this upgrade from update manager on the network server may affect my Win XP OS and may render it un-bootable. I tried backing up files while its upgrading to Ubuntu but it does not recognize any external media like external HDD. What should I do?

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• Is it ok to run with unknown video device?

  - by JTex

  I'm new to linux and just starting to learn. From what I've read and experimented with there's no more support for older ati mobility cards. I resolved a few boot issues with my first install of Ubuntu 12.10(now on clean install #3) and my system seems to function ok with video unknown. Picture quality is good and no issues with video playback. It functions for my purposes. Should I leave it as is......or will this cause problems I'm not aware of? Thanks

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• Multiple weapons for android game

  - by Z3r0

  I am trying to make a 3D game for android using the Rajawali engine to render the 3D graphics and blender for designing my models(exporting as .md2), and I want my character to be able to change weapons, armor, helm, etc. Rendering every possible animation would be too much: if I had 10 different weapons, 10 armor and 10 helm, I would have to create 1000 animations with every possible equipment and if I add boots to list it would be even worse. I read somewhere you can use bones for this; but in Android, I only get the object itself to work with. Does anyone has an idea how i can solve this? If I make the weapon a different object how do I parent it to my models in my game?

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• The Latest In Master Data Management

  Today master data continues to expand while data quality becomes more important. The challenge of clean data is not new, but the stakes and complexities are higher than ever. Fortunately, Oracle has a solution -- Oracle Master Data Management. Hear from Pascal Laik, VP Oracle MDM Product Strategy about the benefits of Master Data Management, the solutions that Oracle offers and why they are unique and what benefits customers are deriving from Oracle MDM products. Learn about the latest product in the Oracle MDM family and where Oracle MDM strategy is heading.

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• How do I get started with fog type effects in a first person game?

  - by Dream Lane

  Hey guys, I'm currently using JME3 to learn 3d game development in java, and I have run into a situation. I would like to add fog effects to my games, but I don't even know where to start to implement this. I know how to set the camera's far frustum to limit the render distance, but that just simply makes a sharp cutoff. I'd like the fog it up a bit to make it feel more natural. I'm looking for an answer that points me into the correct direction. I'm not looking for specific code snippets or even JME3's engine specifics. I just want to get an idea of how this stuff works in general. Thanks!

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• Is it normal to sometimes take a while to get even basic things working in software development?

  - by user1092719

  This is a little hard to explain because it's a really generic question, but bear with me... I find that when I am doing or recreating basic things from scratch (i.e. without the help of libraries), sometimes it feels as though I'm taking much more time to do the task than is actually needed. I am not new to programming or development & design concepts and have worked extensively with around 9 languages and various platforms and paradigms over 5/6 years. Although I don't yet have any academic qualification for programming and have learned almost exclusively from the Internet, I have been told that the quality of my code is excellent by those with qualifications. So, I don't think I'm a bad programmer because I really love doing it and working with software architecture, but maybe I'm slow? Or is it normal to take sometimes longer than it seems necessary to do basic tasks?

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• Hurricane Season 2010 Starts

  - by Mark Treadwell

  Here we are at the start of another hurricane season.  As with past years, I have been preparing.  Last year I had the house painted with a high-quality paint, giving the stucco its best waterproofing possible.  I have a few cracks to patch with elastomeric patching material.  I will paint it to match the house later.  I also need to clean out the anchors for the lower angle brackets and reattach them.  I had removed the brackets for painting. You can read all my past hurricane entries here.  The predictors are promising a busy season.  We have heard that one before, so I put little credence in long range press releases.  Other than that we are pretty much ready.  I have a few new plans I will blog about later, but for now we get to listen to our daily thunderstorms outside.

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• Is it possible to use a spherical collision component in UDK?

  - by Almo

  I have an object in UDK, which has a SkeletalMesh. At certain times in the game, I want this object to continue rendering the SkeletalMesh, but I'd like it to use spherical collision temporarily. After reading a bunch about PrimitiveComponents, my understanding is that UDK supports cylindrical and box-like collision, but not spherical without using a static mesh. But it seems an attached static mesh will render, since it has no bHidden attribute. There must be a way to do this, but I don't know UDK well enough yet to understand all the pitfalls.

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• Distorted graphics, problems with starting up

  - by GreenEggsAndHam64

  Using the newest version of Ubuntu, freshly installed. NVIDIA GeForce GTX 560 Ti. It's mostly the font that doesn't render well, I think. Small logos do it too, sometimes. Screenshot to clarify (see bookmarks, search bar, etc.). EDIT: Another screenshot. And, sometimes when I start up, I get only a black screen saying [OK]. I can move my mouse around, but nothing helps, except for restarting. Also, my desktop picture doesn't stay the same. Every time I start up Ubuntu it goes back to the standard purple background. They're not very serious problems, but it's all a little annoying. Thanks in advance for your help.

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• How to "undo" (revert) Ctrl+L?

  - by zharvey

  I'm on 12.04 Desktop. When browsing the file system, it's convenient to type Ctrl+L so as to get the file path "Location" to render as a string; I can then modify the file path or even paste something in and get redirected right where I want to go. But often, after typing Ctrl+L, I find myself wanting to revert back to the normal way Nautilus renders the file path (as a series of buttons/links). What's the magical shortcut to "undo" Ctrl+L and go back to "normal mode"? Thanks in advance!

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• Game Asset Size Over Time

  - by jterrace

  The size (in bytes) of games have been growing over time. There are probably many factors contributing to this: trailer/cut scene videos being bundled with the game, more and higher-quality audio, multiple levels of detail being used, etc. What I'd really like to know is how the size of 3D models and textures that games ship with have changed over time. For example, if one were to look at the size of meshes and textures for Quake I (1996), Quake II (1997), Quake III: Arena (1999), Quake 4 (2005), and Enemy Territory: Quake Wars (2007), I'd imagine a steady increase in file size. Does anyone know of a data source for numbers like this?

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• Best video recording & mixing software for Ubuntu

  - by ???? No

  I'm searching for a quality software for recording video streams and mixing 3 cameras' streams and photos. I need it also for online streaming on a website. It could be a commercial software, doesn't have to be open source or free. I just don't have a clue if there is something like this. Thanks in advance. P.S. It's for Ubuntu 12.04 P.S.S. Maybe my definition is not correct or full, so I have to add - I need the program for live broadcast and recording on the computer at the same time.

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• Jersey 2.0 Milestone 2 Now Available

  - by arungupta

  Jersey 2.0 milestone 2 is now available. It builds upon the first milestone and adds several new features such as server-side asynchronous processing, server-side content negotiation, improved JAX-RS parameter injection, and several others. The REST endpoints can be published on Java SE HTTP Server, Grizzly 2 HTTP container, and some basic Servlet-based deployments. It also provides HTTPURLConnection-based client API implementation. Read about these and more about what's new in Marek's detailed post. Of course this is also the future reference implementation for JAX-RS 2.0. Feel like trying it out? Simply go to Maven Central (of course none of this is production quality at this point). The latest JAX-RS Javadocs and Jersey 2.0 API docs are good starting points to explore. And provide them feedback at [email protected].

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• Where to go from here, how to improve / learn more

  - by bExplosion

  I finished University around 4 years ago double degree in Software Eng/Comp Sci. Got my first job at a startup in my final year, was with them for 2.5 years then started my own business. So far everything is going great, lots of clients and stead work etc, but coming right out of uni and into a start up I never had any form or senior software engineer guiding my work or suggesting improvements etc... Whats the best way for me to improve & learn more? Books? MS Exams? Other? I develop in C#, ASP.NET/MVC. Update The problem isn't really with releasing products, I've released quite a few which are up and running with customers happy. It's more with quality of code, best practices, how do I know something I am code is correct, it may work but there may be ways of coding it much more efficiently or by adhering to some kind of standard Cheers for any responses! Matt

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• Apress Deal of the day - 5/Feb/2011

  - by TATWORTH

  Today's $10 Deal of the Day from Apress at http://www.apress.com/info/dailydeal is: Pro ASP.NET 4 in C# 2010, Fourth Edition ASP.NET 4 is the latest version of Microsoft's revolutionary ASP.NET technology. It is the principal standard for creating dynamic web pages on the Windows platform. Pro ASP.NET 4 in C# 2010 raises the bar for high-quality, practical advice on learning and deploying Microsoft's dynamic web solution. $59.99 | Published Jun 2010 | Matthew MacDonald I am reviewing this book at the moment but I was already sufficiently impressed by this book to have bought the PDF the day it was available last December.

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• code cowboy on the team

  - by MK01

  How do you deal with a team member who is senior to you and always jumps on other people's projects and completes them over night or over the weekend? She seems to work 80 hour weeks whether there is an emergency or not and it is somewhat difficult to predict which part of your todo list she is going to strike next. Sometimes days of your work are wasted because on Monday morning you find a checkin completing the project you've spent most of the previous week working on. To people asking of the quality: Usually it is quite good but: there is also a lot of refactoring of code involved, including code 'owned' by other team members, w/o regard for the test coverage, with the obvious results.

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