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  • WiFi can't reconnect after suspend/hibernate on Ubuntu 12.04.1

    - by CyberOPS
    I've had this problem since Ubuntu 11.10 (my first install) but I was able to get around this issue with this answer. When I updated to Ubuntu 12.04 I encrypted the home folder, so I wasn't able to suspend or hibernate anymore (disappointing :l). Because of this and another issue I had1, I chose to reinstall. Sometime after I reinstalled, I was reminded about reconnection issue because it wasn't working after I suspended. I tried to use the same fix as before but I couldn't get it to work. I've also tried a couple other different fixes I found around the web but they didn't work. Since I'm new to linux, I'm gonna have a tough time figuring this out by myself. So does anyone know how, or what I need to figure out how, to fix this? Info: Computer: HP Pavilion dv6t-6b00 CTO Quad Edition Entertainment Notebook PC Network Card: Intel® Centrino® Wireless-N 1000 OS: Ubuntu 12.04.1 (x64) dual booting with Windows 7 (x64) (Not using Wubi) Wireless Card Driver: Intel Wireless WiFi Link drivers for Linux (iwlwifi) 1 - ntfs-config caused colord to crash on startup, even after NTFS-Config was removed.

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  • ACER Aspire V5-171 compatibility

    - by JamerTheProgrammer
    Im thinking about buying a V5-171 with an i3 in it. Im worried about secure boot though. I heard some people cant turn it off and it wont work... Im not shy to open it up and replace the hard drive with Ubuntu preinstalled. Im also worried about the wifi working. I have heard its been dropping out for people quite a bit along with also the trackpad not working. I dont mind replacing the wifi stick (if its even possible?) inside. Is the GPU (HD4000 i think) supported in ubuntu with full video accel? Thanks!

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  • Crashes in Core Data's Inferred Mapping Model Creation (Lightweight Migration). Threading Issue?

    - by enchilada
    I'm getting random crashes when creating an inferred mapping model (with Core Data's lightweight migration) within my application. By the way, I have to do it programmatically in my application while it is running. This is how I create this model (after I have made proper currentModel and newModel objects, of course): NSMappingModel *mappingModel = [NSMappingModel inferredMappingModelForSourceModel:currentModel destinationModel:newModel error:&error]; The problem is this: This method is crashing randomly. When it works, it works just fine without issues. But when it crashes, it crashes my application (instead of returning nil to signify that the method failed, as it should). By randomly, I mean that sometimes it happens and sometimes not. It is unpredictable. Now, here is the deal: I'm running this method in another thread. More precisely, it is located inside a block that is passed via GCD to run on the global main queue. I need to do this for my UI to appear crisp to the user, i.e. so that I can display a progress indicator while the work is underway. The strange thing seems to be that if I remove the GCD stuff and just let it run on the main thread, it seems to be working fine and never crashing. Thus, could it be because I'm running this on a different thread that this is crashing? I somehow find that weird because I don't believe I'm breaking any Core Data rules regarding multi-threading. In particular, I'm not passing any managed objects around, and whenever I need access to the MOC, I create a new MOC, i.e. I'm not relying on any MOC (or for that matter: anything) that has been created earlier on the main thread. Besides the little MOC stuff that occurs, occurs after the mapping model creation method, i.e. after the point at which the app crashes, so it can't possibly be a cause of the crashes under consideration here. All I'm doing is taking two MOMs and asking for a mapping model between them. That can't be wrong even under threading, now can it? Any ideas on what could be going on?

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  • what is best way to store long term data in iphone Core Data or SQLLite?

    - by AmitSri
    Hi all, I am working on i-Phone app targeting 3.1.3 and later SDK. I want to know the best way to store user's long term data on i-phone without losing performance, consistency and security. I know, that i can use Core Data, PList and SQL-Lite for storing user specific data in custom formats.But, want to know which one is good to use without compromising app performance and scalability in near future. Thanks

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  • Is Core Animation causing my subviews to call -drawRect for every single frame?

    - by mystify
    I made a nice UIView subclass which paints all its stuff in -drawRect:, because people said that's good. That view is a subview of another. This another view is beeing animated with Core Animation: It's scaled down, rotated and moved. However, I encountered this: -drawRect seems to get called trillion of times during animation, and performance sucks. Is that normal or did I do something wrong, probably?

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  • alsa - sound issues on ubuntu 12.04

    - by tam_ubuuser
    i am having an sony E series laptop.i have an HDMI port .at this stage ,i have tested my sound card , which provides audio out on my laptop i.e i could hear songs .my laptop has two sound cards amd 5450 and an intel-hda(alsamixer shows that as s/pdif) . i decided to connect HDMI output to my new HD-TV.but, i could get only visuals on my TV,NO AUDIO OUTPUT ( HDMI cable works fine with win 7).my laptop has two sound cards.but i couldn't switch output to other card.( i don't know ,how to do that) i decided to update alsa. complied the following code in terminal. sudo apt-add-repository ppa:ubuntu-audio-dev/alsa-daily sudo apt-get update sudo apt-get install alsa-hda-dkms then,strangely no login sound, and no audio output on my laptop at all .then, started complied code from step1 sound troubleshooting procedure from offical ubuntu site.then, my speaker icon taskbar disappeared .obivously $aplay -l ,provided output as no soundcards detected . so , i implemented step 4 from that guide, it provides a output of all hardware devices in my laptop. *-multimedia UNCLAIMED description: Audio device product: Cedar HDMI Audio [Radeon HD 5400/6300 Series] vendor: Hynix Semiconductor (Hyundai Electronics) physical id: 0.1 bus info: pci@0000:01:00.1 version: 00 width: 64 bits clock: 33MHz capabilities: pm pciexpress msi bus_master cap_list configuration: latency=0 resources: memory:f0040000-f0043fff *-multimedia UNCLAIMED description: Audio device product: 5 Series/3400 Series Chipset High Definition Audio vendor: Intel Corporation physical id: 1b bus info: pci@0000:00:1b.0 version: 05 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: latency=0 resources: memory:f5e00000-f5e03fff that command displayed output name of the two cards . but , still i have no positive output on $aplay -l. so therfore, i think alsa couldn't detect my sound cards . is there solution to this problem? it could be better,if alsa would channel output from multiple sound cards ? how should install and configure alsa such that detects HDMI cable as soon i connect to my HD tv? is it possible to alsa and pluseaudio 2.0 to co-exist, if so how?

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  • Best practice? - Array/Dictionary as a Core Data Entity Attribute

    - by Run Loop
    I am new to Core Data. I have noticed that collection types are not available as attribute types and would like to know what the most efficient way is of storing array/dictionary type data as an attribute (e.g. the elements that make up an address like street, city, etc. does not require a separate entity and is more conveniently stored as a dictionary/array than separate attributes/fields). Thank you.

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  • Can't access computer

    - by Pudica
    I'm running Ubuntu 14.04 on an Intel NUC and it won't boot! The last successful boot was earlier today but now each time I try it gets stuck on the Grub menu where it prompts for memory check etc. This is not a dual boot system, so this screen shouldn't ever appear, and it never has before. It's GRUB version 2.02~beta2-9, which is a little disconcerting, as I'm on the stable sources. Unfortunately the keyboard (I've tried 2 keyboards just in case) is not responding at this point in the boot process, so I can't select the "Ubuntu" menu option in Grub. The keyboard works during the bios stage, so I can configure it to boot from USB, and I tried a flash drive with 14.04 on it. The flash drive works in my laptop but is completely ignored by the NUC (I tried all 3 USB ports!). It seems that I have no way of getting into the machine at all! The Intel support site was my first option, but the site is down. I expect it's a long shot, but if anyone has any ideas I'd be very grateful.

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  • Problem installing libva (VAAPI), vainfo fails

    - by satuon
    I'm following a wiki on how to make VLC use the GPU in the Core i3 integrated graphics chipset, but I'm stuck at one of the first steps, installing VAAPI. I installed libva1 and vainfo by using "sudo apt-get install libva1 vainfo", but when I run vainfo it says libva: libva version 0.32.0 libva: va_getDriverName() returns 0 libva: Trying to open /usr/lib/dri/i965_drv_video.so libva: va_openDriver() returns -1 vaInitialize failed with error code -1 (unknown libva error),exit It should say VAProfileH264High : VAEntrypointVLD VAProfileVC1Advanced : VAEntrypointVLD according to the wiki. /usr/lib/dri/i965_drv_video.so doesn't exist in my system, but I installed libva1 with apt-get.

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  • Ubuntu 13.04 can only work in recovery mode

    - by zhangyangyu
    I have just updated my 12.10 to 13.04. Everything is updated. But I can only boot to a black screen. I mean after the GRUB interface and purple screen. And I can hear the voice of the password interface. But it is only the black screen. It all works OK in 12.10. But it can work in the recovery mode. I mean go into the recovery mode and choose resume. And then everything is OK. But when loading kernel, the screen is dirty. I don't know why and I have Googled a lot. But no resolutions works. My graphics card is Intel GMA HD 4000, tested as VESA: Intel® Sandybridge/Ivybridge Graphics. I have been trapped in this for a whole day. I do need help. Hope someone can help me. By the way, the kernel is 3.8.0-19 if it helps.

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  • C# or windows equivalent of OS X's Core Data?

    - by Nektarios
    I'm late to the boat and have only just now started using Core Data in OS X / Cocoa - it's incredible and is really changing the way I look at things. Is there an equivalent technology in C# or the modern Windows frameworks? i.e. having managed data types where you get saving, data management, deleting, searching all for free? Also wondering if there's anything like this on Linux.

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  • Intel i7 vs Xeon quad core processor?

    - by jasondavis
    I know the Xeon processors have been around for a long time and are mostly used in servers but I am curious, why do people not use the xeon's in a high performance desktop? As far as I know about the best desktop processor out there now is the i7 line. The i7's and xeons are both quad-core processors, what is the main difference in these? I just saw that the mac pro's are using the quad core xeons instead of the i7's

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  • Apache mod_wsgi error: ImportError: No module named django.core.handlers.wsgi

    - by bigmac
    I am using Python 2.7 with mod_python 3.3.1 and mod_wsgi 3.3. I get an Internal Server Error and this stack trace in the apache logs: [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] import django.core.handlers.wsgi [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] ImportError: No module named django.core.handlers.wsgi [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] mod_wsgi (pid=4463): Target WSGI script '/home/one/codebase/campman/wsgi_handler.py' cannot be loaded as Python module. [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] mod_wsgi (pid=4463): Exception occurred processing WSGI script '/home/one/codebase/campman/wsgi_handler.py'. [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] Traceback (most recent call last): [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] File "/home/one/codebase/campman/wsgi_handler.py", line 13, in <module> [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] import django.core.handlers.wsgi [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] ImportError: No module named django.core.handlers.wsgi

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  • Smss.exe - setting any core affinity breaks rdp on Windows 7 / Windows Server 2012

    - by Hetman
    I have tried to set core affinity of smss.exe to not run on one critical core on Windows 7 and Windows Server 2008r2. It turns out that simply setting the core affinity to anything (even the full mask that smss.exe already has) seems to work but prevents users from rdp'ing into the machine until it is restarted. The users already logged in may continue to use their sessions. This behaviour does not occur on Windows 8/Windows Server 2012. Does anyone know why it is happening?

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  • 7-Zip on multi-core computers

    - by Peter Mortensen
    Does 7-Zip take advantage of multiprocessor or multi-core systems? For example, would there be a close to 16 times speed-up on a 16 core system assuming no disk or memory bottlenecks? Or is it is limited to 2 threads (2 times speed-up on systems with more than one CPU or core)?

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  • Apache mod_wsgi error: ImportError: No module named django.core.handlers.wsgi

    - by bigmac
    I am using Python 2.7 with mod_python 3.3.1 and mod_wsgi 3.3. I get an Internal Server Error and this stack trace in the apache logs: [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] import django.core.handlers.wsgi [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] ImportError: No module named django.core.handlers.wsgi [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] mod_wsgi (pid=4463): Target WSGI script '/home/one/codebase/campman/wsgi_handler.py' cannot be loaded as Python module. [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] mod_wsgi (pid=4463): Exception occurred processing WSGI script '/home/one/codebase/campman/wsgi_handler.py'. [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] Traceback (most recent call last): [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] File "/home/one/codebase/campman/wsgi_handler.py", line 13, in <module> [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] import django.core.handlers.wsgi [Thu Apr 21 10:25:37 2011] [error] [client 83.244.243.242] ImportError: No module named django.core.handlers.wsgi

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  • Barebones network appliance, 4+ GbE NICs, Intel chipset

    - by gravyface
    Looking for a stepped-up ALIX or Soekris embedded network appliance to load pfSense and/or handle other FOSS-based network roles. Main criteria is a GbE NICs (will be used for core routing/firewalling with managed GbE switches), DDR3 RAM capable, and multi-core/Intel Atom processor, in a 1U rack-mountable case or smaller. Axiomtek has the ideal product but I don't think they have retail channels.

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