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  • Help deciding on language for a complex desktop - web application

    - by user967834
    I'm about to start working on a fairly complex project needing a desktop GUI as well as a web interface and I need to decide on a language(s) to use. This is from an electrical engineering/robotics background. These are the requirements: Program will have to read data from multiple sensors and inputs (motion sensor, temperature sensor, capacitive sensor, infrared, magnetic sensors, etc) through a port on a computer - so either through USB or ethernet. Program will have to be able to send control signals based on this input. Program will have to continuously monitor all input signals at all times - so realtime data. Program will require authentication. Program will need to be controllable from a web interface from anywhere via logging in to a website. Web interface will also need to have realtime feedback once authenticated. What language do you think would best accomplish this? I was thinking maybe saving everything into a database which can be accessed by both the desktop and web app? And would Python be able to do all of this? Or something like a remote desktop app? I know this is a complex project but let's assume I can learn any language. Has anyone done something like this and if so how did you accomplish it?

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  • problem getting scanning to work on epson workforce 610

    - by thatisvaliant
    i installed the latest epson software on my user's computer. everything works fine from the admin account (printing / scanning). yet, when i go to user's account (the standard user mode account the company employee uses on there machine) and launch the epson scan software or scan settings software it times out and puts up a dialog box asking me if i want to use the trouble assistant. my question is why would this all work in the admin account yet not work in the user mode account? any help is greatly appreciated.

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  • Laptop runs HOT after 12.10 upgrade!

    - by dinkelk
    I was running 12.04 for 6 months, my laptop ran almost silently and cool enough to hold on my lap. I updated to 12.10 and now my computer gets too hot to hold on my lap and the fan is constantly running on full blast. This is the output of sensors: acpitz-virtual-0 Adapter: Virtual device temp1: +84.0°C (crit = +99.0°C) coretemp-isa-0000 Adapter: ISA adapter Physical id 0: +84.0°C (high = +86.0°C, crit = +100.0°C) Core 0: +74.0°C (high = +86.0°C, crit = +100.0°C) Core 1: +72.0°C (high = +86.0°C, crit = +100.0°C) Core 2: +75.0°C (high = +86.0°C, crit = +100.0°C) Core 3: +84.0°C (high = +86.0°C, crit = +100.0°C) radeon-pci-0100 Adapter: PCI adapter temp1: +76.0°C I have an HP Pavilion dv6, i7, amd radeon graphics. Please let me know if you need additional information. What could be different between the two Ubuntu additions that caused such a drastic change? Edit 1: Per @Paul's suggestion, I ran htop to try to narrow down the problem. Here is the result! This is about 10 minutes after boot-up, htop, yakuake, and a chrome page with 1 tab opened to this question are all that I have manually opened. The most taxing program to the CPU is htop itself. I think that the problem must lie elsewhere; my temps are already up to ~65C for the CPU and ~69C for the GPU, with nearly 0% CPU usage.

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  • Windows file server access control by device

    - by Ori Shavit
    I'm trying to build a system where access to certain resources (file shares) in Windows Server, is limited not only by the username (in a Active Directory domain), but also by the client machine. So far, I haven't found a good way to do this; adding the computer account to the DACL is apparently not the way to do it. Windows Server 2012 supports this with Dynamic Access Control, but this method requires all clients to be Windows 8, it seems, with no way to use this with Windows 7 clients. Is there a supported way to do this? (or alternatively, add support for device authorization with Windows 7).

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  • NetBeans has broken interface with OpenJDK

    - by Krzysztof Stanislawek
    Sorry for English. Usually (say, at 4/5 of times), when I start NetBeans, interface is partially broken. For example, menu items are appearing and at once disappearing after click; some parts of editor are also blocked for cursor actions. Another issue is broken Options window - I can show it only once for NetBeans execution. There are more similar issues. $ java -version java version "1.7.0_55" OpenJDK Runtime Environment (IcedTea 2.4.7) (7u55-2.4.7-1ubuntu1~0.13.10.1) OpenJDK 64-Bit Server VM (build 24.51-b03, mixed mode) Version of NetBeans is 7.0.1. Linux version is Mint 16. I use Mate. I had the same issue at other computer, at the same operating system. I know that installing Sun version of Java could help, but I also know that there shouldn't be such issue with OpenJDK. Also, I had other problem with NetBeans and Sun Java 8 - NetBeans suddenly crashed before he fully started, so I want to stick with OpenJDK. What causes my problem? Should I use other version of NetBeans/OpenJDK?

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  • Upgrading from 32 to 64 Bit Windows 7, without losing program installations/games

    - by Fogest
    I recently built a new computer and put the wrong installation of Windows on (32 bit), meaning I cannot use all of my RAM. I would like to upgrade to the 64 bit version, though I already have downloaded many programs and games which would total to around 30 GB give or take. I don't have the kind of data usage with my ISP to re-download this much data again, until next month (total GB will be higher as time goes on). I know there is Windows Easy Transfer, but it is not so much my data itself I'm worried about, it is more having to re-download and install a bunch of games and applications. Is it possible to perform an upgrade from 32 bit to 64 bit without this loss?

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  • A home router for torrents, gaming, webbing and detailed QoS [closed]

    - by Cawas
    I want to plug in an external HD on it to torrent up never ending (mostly for seeding), with lowest priority. It should even automatically completely stop if it disturbs my net usage, and go back in later. And I want to be able to give gaming (or my computer) the highest priority, because of its ping requirements. It should be above even of Skype and any voip, which also have high priority. Web surfing and "youtubing" comes in the middle - it won't matter much if it delays a second or two. Finally, interface as simple as possible. It's fine if it's command line setup, but it needs to have a GUI. What are my options for routers / firmwares as described? Maybe Gargoyle? Or even Time Capsule? It seems to me good old DD-WRT isn't the best option out there anymore. I wonder what else could cover these grounds.

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  • Default Keyboard for new users in Windows 7

    - by xited
    I just installed Windows 7 and I want all users signing in to the computer to see the Language Bar customized with the following three languages: "English (American)" "French (Standard)" "Chinese (Simplified PRC)" I am running the following four lines of code at log on in order to change the registry such that each user will see the language bar, and then have access to the three keyboard layouts mentioned above. reg add "HKCU\Software\Microsoft\CTF\LangBar" /v ShowStatus /t REG_DWORD /d 4 /f reg add "HKCU\Keyboard Layout\Preload" /v 2 /d 0000040c reg add "HKCU\Keyboard Layout\Preload" /v 3 /d 00000c0a reg add "HKCU\Keyboard Layout\Preload" /v 4 /d 00000804 The above works fine, but with one small/major inconvenience: the user has to log off and then log back on in order for these changes to take effect and see the language bar, as described above. The question becomes: How can I force these changes to take effect so that users don't have to log off and then log back in to see the language bar. This has to be done automatically when users log in.

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  • How to share my localhost over the internet?

    - by Loolooii
    I really want to share my localhost over the internet to show my friends the progress of the website we're working on, so that I don't need to upload it to the public server each time I make a change. showoff.io is not free and localtunnel gives me "failed to authenticate" when trying to upload my public key (a lot of people seem to have this problem and there doesn't seem to be a solution for this). Does anyone know any other free service I can use or any other solution at all? I'm using a Mac. Thanks. UPDATE: with localhost I mean a web server running on my computer, I have a dynamic IP address and no I'm not behind a router (just using a wireless modem).

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  • Broadcom BCM4313 takes ages to connect

    - by Drazgo
    I'm having issues with my broadcom BCM4313 wireless adapter. Everything works just fine when connected (with additional drivers & Connman), but it takes about 5 minutes to connect to my network when i just started my computer! When resuming from hibernation it goes very quick though, so just when I boot my pc it's taking forever... This is what I found in the dmesg output: [ 16.778057] eth1: Broadcom BCM4727 802.11 Hybrid Wireless Controller 5.60.48.36 [ 16.808768] type=1400 audit(1295859939.727:2): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient3" pid=833 comm="apparmor_parser" [ 16.808815] type=1400 audit(1295859939.727:3): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient3" pid=799 comm="apparmor_parser" [ 16.808825] type=1400 audit(1295859939.727:4): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient3" pid=826 comm="apparmor_parser" [ 16.809367] type=1400 audit(1295859939.727:5): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=833 comm="apparmor_parser" [ 16.809415] type=1400 audit(1295859939.727:6): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=799 comm="apparmor_parser" [ 16.809435] type=1400 audit(1295859939.727:7): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=826 comm="apparmor_parser" [ 16.809705] type=1400 audit(1295859939.727:8): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=833 comm="apparmor_parser" [ 16.809755] type=1400 audit(1295859939.727:9): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=799 comm="apparmor_parser" [ 16.809769] type=1400 audit(1295859939.727:10): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=826 comm="apparmor_parser" [ 16.844083] alloc irq_desc for 22 on node -1 [ 16.844087] alloc kstat_irqs on node -1 Any ideas how come? Thanks in advance!

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  • How to write code that communicates with an accelerator in the real address space (real mode)?

    - by ysap
    This is a preliminary question for the issue, where I was asked to program a host-accelerator program on an embedded system we are building. The system is comprised of (among the standard peripherals) an ARM core and an accelerator processor. Both processors access the system bus via their bus interfaces, and share the same 32-bit global physical memory space. Both share access to the system's DRAM through the system bus. (The computer concept is similar to Beagleboard/raspberry Pie, but with a specialized accelerator added) The accelerator has its own internal memory (SRAM) which is exposed to the system and occupies a portion of the global address space (as opposed to how a graphics card would talk to teh CPU via a "small" aperture in the system memory space). On the ARM core (the host) we plan on running Ubuntu 12.04. The mode of operation of communicating between the processors should be that the host issues memory transactions on the system bus that are targeted at the accelerator internal memory. As far as my understanding goes, if I write a program for the host that simply writes to the physical address of the accelerator, most chances are that the program will crash due to a segmentation violation. So, I assume that I need some way of communicating with the device in real mode. What is the easiest way to achieve this mode of operation?

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  • How can I get my Sapphire Radeon 7850 to output in "1080p"?

    - by Fr33dan
    I have a Radeon 7850 connected to a Vizio 3D compatible TV. The TV has a function to parse and display SBS encoded content. On my old graphics card (a Radeon 5770) I just had to select the 1080p option in the catalyst control center. In this mode my TV reported the output mode as "1080p", with the new card the TV reports "1920x1080". I cannot figure out what the difference in between the 2 signals but the "1920x1080" cannot be switched into 3D mode by the TV. Weirdly, before windows starts the (in the Bios and so forth) the computer outputs in "1080p" so I know the card is capable of it. As soon as the blue login screen comes up though it changes back to the "1920x1080". I've tried everthing I can think of. Updated my drivers from 13.3b3 to 13.4, then even tried the 13.5 beta (Which I'm still on this moment). Tried all the "optimized" HD settings in catalyst, even the 720p modes show the resolution from the TV and not the "720p" (which it used to do on the old card when I had to lower the resolution of games)

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  • Change Linux Console's Default Monitor

    - by Tim M
    Is there any way to specify which monitor the console is displayed on in Linux? Details: I have a 3 monitor setup with 2 video cards. When I boot the computer, the BIOS displays on the PCI graphics card (which has a small monitor). When starting Linux, the console is displayed on the same monitor. Is there a way to have the console output on a different monitor? I'm using the vesafb framebuffer. I don't see a way in my BIOS to change the default video card.

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  • Greeter login screen cropped login options in 12.04

    - by ammianus
    I have a pretty newly installed Ubuntu 12.04, using Unity. My external monitor is 1920x1080 max resolution. In the Unity desktop itself everything looks great. I have an NVidia graphics card. When I start my computer and get to the Unity greeter login screen the display is oddly formatted and the resolution seems off. It looks like a zoomed view on the larger 1920x1080 screen. As such it crops the login options off to the left hand side of the screen. So I can only just see the edge of the password box for the user I want to log in with. I can log in with one account by default by blindly typing the password, but I am unable to switch to other accounts. Is there anything I can do to fix the log in screen display so that I can see the normal login options? Note: I first noticed it when I changed my desktop background and the next time I logged in I saw the issue.

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  • Accessing Windows from Linux/Mac by name using TCP/IP

    - by stevekuo
    What are some solutions to access Windows by its computer name from Linux and Mac using TCP/IP. That is, from terminal I want to be able to ping my Windows PCs using its host name. My setup is: Various machines running Ubuntu, Windows XP and OS X. Networked using a consumer grade wireless router which provides DHCP. The only DNS is the ISP's, which resolves Internet names and not local host names. The Windows machines can ping each other by name. The Ubuntu and OS X machines can only ping Windows by IP address (name doesn't work).

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  • Monitor turns off about 1 second after turning it on

    - by r0ca
    Hi all! I have a hardware issue with some of the LCD monitors we have in our office. My problems is not related to video cards or anything else with the computer itself. I have 2 Dell 17" LCD screens that goes off (blank) after 1 or 2 seconds. The light remains green so it's not idling or sleeping. Just this morning, I had to replace one that goes off on 2 workstations and also on my laptop. Nothing to do with it. I tried the VGA and DVI connection w/out luck. I strongly think that this is something with a capacitor or something inside the screen but I can't figure out what it is... Is anybody heard of that kind of issue before? Regards, David.

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  • how can i use apache log files to recreate usage scenario

    - by daigorocub
    Recently i installed a website that had too many requests and it was too slow. Many improvements have been made to the web site code and we've also bought a new server. I want to test the new server with exactly the same requests that made the old server slow. After that, i will double the requests, make new tests and so on. These requests are logged in the apache log files. So, I can parse those files and make some kind of script to make the same requests. Of course, in this case, the requests will be made only by my computer against the server, but hey, better than nothing. Questions: - is there some app that does this already? - would you use wget? ab? python script? Thanks!

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  • Is 192.168.122.1 a valid IP?

    - by Louise Hoffman
    From my understanding the networks is as follows Class A: 10.0.0.1 - 10.255.255.254 Class B: 172.16.0.1 - 172.16.255.254 Class C: 192.168.0.1 - 192.168.0.254 But then I look at ifconfig virbr0 on my Linux computer: virbr0 Link encap:Ethernet HWaddr 42:40:99:CB:02:7F inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:16 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:2842 (2.7 KiB) Here the IP address is 192.168.122.1. Is that an allowed IP? And if so, is 192.168 than actually a Class B network?

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  • Why can't I share my printer on Windows 7?

    - by Edward Tanguay
    I have Windows 7 installed on two computers. I can share folders between them fine. However, I can't seem to share printers between them: when I right-click on the printer I expect to see "share printer" but there is no option for that. When I read about "share printers" in the Windows 7 help, it talks about this computer "not being able to connect to a home network", yet they seem to be connected fine (I can share files between them). Why can't I share printers between the computers if I can share files?

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  • Converting PDF eBooks into a Kindle format

    - by Ender
    Over the past couple of years I've amassed quite a collection of guides, tutorials and ebooks in PDF format. A lot of these are quite useful for work, especially PDF documentation, and rather than have to be at a computer every time I want to read how to do something in Sitecore or to read through a software testing ebook I'd like to do it on my brand-spanking-new Kindle. However, even though there is now a native PDF reader on the Kindle due to the nature of PDF's they are practically unreadable. The text doesn't wrap due to how PDF's are sized and so far after a bunch of Google searches I've yet to find a viable solution to get my PDF's converted into a readable Kindle format. Sometimes these books have code or pictures/tables in them, but most of the time they're text-heavy and to be honest I'd be surprised if there wasn't a free tool to handle the converting of PDF to one of the (seemingly many) Kindle formats. So, can anyone help me out with this?

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  • External display resolution issue

    - by Steven
    I'm new to Ubuntu. I've 'dabbled' in the past but Windows was annoying me too much so I finally made the change. One thing I use my laptop for is outputting the screen onto an external monitor. In Windows this usually works fine (but when there is an issue, it's a pain to resolve and has crashed my computer on many occasions). In Ubuntu it's a very simple case of "plug and play" because it displays the content immediately with no major problems. However, I can only alter the resolution of the external display to 4:3 formats, whereas the external monitor is 16:9, so the picture is stretched. In Windows there's loads of resolutions to choose from. If I disable the laptop's screen, it still doesn't allow me to display the correct resolution externally (on VGA). Further to that, if I close the laptop it keeps the external screen as it is, but when I reopen the laptop, the laptop screen doesn't turn back on until I restart. If it's a video I am watching, I can use VLC to alter the aspect ratio so the video looks fine, but it's quite an annoying work around. I used terminal to find my graphics controller, which is "Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)" (not great, I know... the laptop was a free gift with my mobile!) Any idea of how I can get the resolution on the external monitor to be correct?

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  • Problem with installing Nvidia display drivers on Ubuntu 13.10

    - by Pascal
    Hello everyone and thank you for taking a look at this topic! I'm currently trying out Ubuntu 13.10 but I keep hitting a wall when it comes to installing a driver. I've tried: sudo apt-get install nvidia-current This resulted in a un-bootable system. The screen just stayed black and the cursor displayed as an 'X'. After that I did had to re-install Ubuntu. The computer I'm using is an Acer-Aspire-V3 with a build in Nvidia geforce GT 630M and also with a Intel HD graphics chip-set (not sure if chip-set is the right word here). "lspci | grep VGA" output: pascal@pascal-Aspire-V3-571G:~$ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 630M] (rev a1) I've searched a bit here and there and found out that it would be wise to mention that this laptop is using (or so I think) Nvidia Optimus, not sure if it will add anything to the subject but at least I'll mention it just to be sure. Now to the questions: Q1 How is this caused and how can I fix it? Q2 What additional information could I provide to help you help me?

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  • Ubuntu12.04 - launched applications, not staying in same desktop

    - by Anders Metnik
    My question is why a launched application, if it has loading time like netbeans, eclipse jdeveloper etc. If i go to desktop3 and launch an application and then go to desktop 2 while I wait, then when it has loaded the application will launch in desktop2. Is there anyway to change this? I find it highly annoying since i on startup would like to launch 3-4 big applications, leave my computer while loadingf, and then return. But i cant leave since i have to launch them sequential instead of simultaneous... Help please :-)

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  • Managed Cloud Services Wins Another Prestigious Industry Award

    - by Dori DiMassimo-Oracle
    Over the last 90 days, Oracle Managed Cloud Services has been the proud recipient of TWO prestigious industry awards for service excellence and customer value leadership.  The most recent award is last month's 2014 Frost & Sullivan Best Practice Award - North America Managed Cloud Customer Value Leadership Award, which rated Oracle Managed Cloud Services as the clear leader versus other providers; Managed Cloud received an "exceptional" rating in 9 of 10 evaluation categories.  The research report  is an excellent look at our industry and what is valued by cloud customers looking for a managed solution.   In April, Managed Cloud was a repeat winner of the Outsourcing Excellence Award - 2014 Outsourcing Excellence Award - Best ITO Infrastructure (Sony Computer Entertainment America).  Last year we won the award for Best Cloud: 2013 Outsourcing Excellence Award - Best Cloud (Take-Two Interactive)  These awards are a great testimony of the transformation of Managed Cloud Services to a true Cloud-based business and a strategic and relevant part of the Oracle Cloud Solutions portfolio.  Frost & Sullivan, in particular, recognizes our vision and our capability of successfully managing business transactions in the cloud.

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  • windows hosted networok on windows 8

    - by tanmaysingh
    my sister is using Acer laptop, that has an intel WLAN card and supports windows hosted network(checked in command prompt).Am using the basic way using netsh wlan command also, then am using netsh start wlan command.The hosted network gets created and it could b seen in "Network and Sharing Center" as the . I also went to Device manager, selected WLan card, made sure"allow this device to wake computer from sleep" is selected. Now I went to the newly created , clicked properties, and under sharing enabled allow this to be shared(but I am not able to select The name of the wifi my sis wants to share (in this case her college wifi name, LEts say QP4,Ethernet and Local Area connection are the only two option that are coming). Also the SSID name is not being shown in her mobile nor when I click the tower icon at the tray area,Any suggestions on what might be going wrong?She is using windows 8. Should I look for updated drivers? Her laptop is only 6 months old, i don't think the drivers are outdated. Any advice shall be appreciated.

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