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  • Primary monitor keeps reverting back to the laptop display

    - by Celeritas
    A Macbook Pro running VMware Fusion has a guest operating system of Windows 7. The user often connects an external monitor to the laptop through an HDMI cable. For the display settings "extend the desktop" is selected and I keep setting the primary monitor as the external one but for some annoying reason it keeps changing back. So after Windows starts the taskbar and icons are on the laptop screen which we don't want. I know how to change it but it keeps changing back (and the computer user is non-technical).

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  • How do i impress employers with my resume?

    - by acidzombie24
    I built a entire website from scratch in 10days which looks and feels professional with the site being unique. The site has features like logging in, sending activation emails, tag/content search (lucence.net), syntax highlighting (prettify) and a diff (one of the js diffs), markup for comments all on this site and autocomplete in a textbox (remember, 10days). I wrote i have 5+ years of C# experience (i could lie and say more but smart employers will know its only 8 years old and 1.1 is very different from what we use now). I had employers REPEATEDLY say they are looking for someone who has more C# experience... wtf. Maybe they don't read my CV, maybe they dont believe it or ignore me because i am not yet a graduate. I laughed when i first read Steve Yegge The Five Essential Phone Screen Questions as i knew all of that (although i still never used graph datastruct nor know much about it). I'm pretty sure competency wise i can do the job. I am also positive no one noticed i have markup, a diff, autocomplete nor email activation/forget password (i offer a test user account). So maybe my site/example work isnt impressive bc you dont realize what is in it. In short i dont think they read my CV or notice my site. How do i impress employers? PS: The problem is i dont get to the interview. I had one and ruined it by speaking too technical to the PM because i was nervous. The other 25+ jobs either didnt contact me or was kind enough to send a rejection email.

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  • Unity3D : Pause Menu - Android

    - by user3666251
    Im making a 2D game for android.I almost completed the game but now I need a pause game option.I added a pause icon on the top right side of the screen.The icon is a gui texture.Here is what I did so far : I made a script which will bring up some buttons (which is not working) and attached it to the GUITexture.This is the script : #pragma strict function OnMouseDown() { Debug.Log("*Pause Menu Opens*"); Time.timeScale = 0; if (GUI.Button(Rect(10,10,100,50),"Restart")); Application.LoadLevel(Application.loadedLevel); if (GUI.Button(Rect(10,60,100,50),"MainMenu")); Application.LoadLevel("MainMenu"); } Now,the problem stands at the part where the buttons won't show up,the game freezes at the first frame but the buttons won't show up.Please,if you can help I would be realy thankful. Thank you. Edit #1 : I just noticed that when I click "Pause" the game freezes and it takes me to the MainMenu.That's because I added the GUIButton which takes you to the main menu.I think the whole script structure is wrong.I also forgot to mention that Im new in scripting/unity. Thank you.

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  • New Windows 7 Install Crashing

    - by bobber205
    One big reboot crash and one smaller crash already, 15 minutes in. Did a basic install of Windows 7, installed Chrome and Firefox. I had just finished loading up my gmail account in Chrome/Firefox to show the speed difference and we'd thought it would be hilarious to see how slow IE8 was. :P Just about as IE8 was done opening, the computer's screen goes black. After a restart and a couple minutes, Explorer crashes as well. What is going on? This install is only 15-20 minutes old. :P

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  • Dual boot Win/7 and Ubuntu 12.04

    - by Brian
    So I've always wanted Ubuntu along with windows 7 and finally I went to try and make my computer that last night. (( I'll just skip the long story. )) I loaded Ubuntu from CD, Version 12.04 and it loaded fine and then I clicked the install icon. It asked me witch option I would like to proceed with, and I answered Ubuntu, in Windows 7. So it did everything rather quickly, and restarted itself; upon restarting itself it ejected the CD, and I thought everything was good to go. It brought me to the Option to either load Ubuntu or Windows, I was thinking to myself wow that was alot easier than I thought; Windows 7 Loads fine after it checked the HDD but when I go to load Ubuntu it brings me to the loading screen and then stays there for a long period time, finally moves on as if it was going to load into the regular dashboard, but loads into a dos looking thing. (( I'm sorry if I sound retarded explaining everything I'm not great with computers )) And at the very time it says something like installation failed. It also says it could not find a file or something like that. If you need me to go back and get the full message and put it up here I will. But if I put the CD in it loads fine. Thanks in advance for everyone that helps me solve this problem.

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  • Booting Ubuntu 12.04 from external eSATA disk

    - by Lord of Scripts
    This is my system topology: Disk #1 (SATA Internal) C: D: (Windows 7 Ultimate) Disk #2 (SATA Internal) E: (Windows Backup) Disk #3 (eSATA External) H: I: (Other windows data) /dev/sdc3 Linux Swap /dev/sdc4 Extended partition /dev/sdc5 Linux / So, I originally had there Ubuntu 8.1 from years ago but never got to use it. Now I used the Ubuntu 12.04 Live CD to install on that same location (That live CD takes a century to boot on a 6GB Intel i7 system...). The installation went fine, I selected it to install on /dev/sdc5 but it never asked me for any boot stuff, where I wanted to install Grub or whatever it is that it uses nowaways (I come from the LILO days when it always worked :-) So, yet again I can't access my new Linux installation. I have to wait a century to boot the "Live" CD and it allows me to see my new installation but I can't do anything with it. I tried the approach of this blog post. Copied the linux.bin of /dev/sdc5 into C: and used the BCDEdit steps to declare the new OS. So when I boot I see the Windows Boot menu and select Linux and after than I only get a black screen with a blinking cursor on the upper left. I can boot into Windows though. So, perhaps it didn't install the boot code on /dev/sdc5? I used this setup years ago booting from Windows with a BIN file: dd if=/dev/sdc5 of=/mnt/share/C/linux.bin bs=512 count=1 I am very reluctant to run GRUB because years ago I did and it wiped out my Windows boot sector and took quite some effort to recover it and be able to boot Windows again. I have been trying to install GRUB on a blank USB stick but I can't find anything clear enough. My system does NOT have a floppy. So can someone give me some ideas about how to get control of my Ubuntu 12.04 installation?

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  • Recover Bios HP DV9700T windows 7 64

    - by petebob796
    I downloaded the latest DV9700t bios (.59) and ran the update tool in windows 7 64. This seemed to go ok and did the usual system will shutdown in 10 seconds dialog. Updon the reboot nothing happens I get no BIOS screen or anything so I think the bios update went wrong. Which I am annoyed about I have never known a bios update to fail before and lots of people on the internet seem to have had the same problem with the same model. There is a way to recover apparently using crisdisk utility and creating a bootable usb key then holding win+b at power on, unfortunately the utility to make the disk doesn't seem to work in 64 bit versions of windows, the only type I have easy access to. Anyone know a way to create the boot disk in 64?

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  • Using cd Command in Windows Command Line, Can't Navigate to D:\

    - by nicorellius
    This may be a stupid question, and I think I have looked elsewhere to find the answer... Might be a path issue, but when I open the command line and type from the C:\>: cd D:\ I cannot get to the D drive. Even if I type: cd D:\<folder name> The command.exe will auto-complete the line with the tab key, so it knows where I'm at. It just doesn't print to screen the result or actually get me there. This problem exists for the network drives as well. Now, if I use the chdir (cd) command like this: chdir D: or cd d: I get the print out of the D:\ below the command but it still says I'm in the C:\. I feel like I'm missing something simple.

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  • Laptop won't load an OS or even an OS setup.

    - by Talasan Nicholson
    My fiancé's laptop started to crash and would get BSOD errors to the point that she couldn't even boot up because it would either take forever or just crash. So I figured I'd try to reformat, as it's done this before and this was the solution last time. On Windows 7, it will not go passed the "Setup is starting..." screen. On Windows XP, it crashes once the setup is about to start (BSOD). I shut it down and let it sit for 5+ hours, in case it was overheating, but it's doing the same thing anyway. By now, I figure it's something to do with the hardware but I hope not. Any ideas?

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  • RocketRaid gives me stuttering computer

    - by Dan
    I have a SANS DIGITAL TowerRAID TR8M-BP (with the RocketRaid 622 raid device) with 5 x SAMSUNG Spinpoint F4 HD204UI 2TB 5400 RPM SATA 3.0Gb/s harddrives in a raid 5. It connects via 2-esata cables. My drivers are up to date. When I'm writing data to the drives my computer stutters (meaning freezes for a 1/2 second every 2 seconds or so). My screen freezes, my music goes into a loop, its really annoying. I get the same thing in windows 7 as I do in linux. The only difference is it seems to happen less in linux, but occassionally linux will crash (I've never had linux crash for any other reason, so I'm assuming they have poor linux drivers and kernal mod). Any tips for how to deal with this? Thanks

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  • How can I define custom keyboard mappings to resize, move, and manage windows?

    - by fumon
    I just returned to ubuntu (13.04) after a year using OS X exclusively. I love the improvements that have come to ubuntu and unity, and I'm glad to be back. There's just one thing, though... Slate is a simple OS X tool that allows users to quickly create powerful keyboard macros and really take advantage of their screen space. I have to say I was spoiled by it. Even on a tiny laptop, my workflow was never interrupted by changing workspaces or leaving the keyboard to adjust a window, because perfect adjustment was a keystroke or two away. For example: bind h:ctrl;alt;cmd resize -10% +0 # this increases the window's left width by 10% bind h:shift;alt nudge -10% +0 # this moves the window left by 10% You make a big config file, and like vim, tmux, and everything else, it just becomes muscle memory. I can't seem to find a way to achieve anything close to this in linux or ubuntu. I've tried to make do with compiz window settings and the built-in stuff Ubuntu offers, but it's not even in the same realm. Although to be fair, this level of tuning isn't something most people care about. Thanks, guys. :) Any feedback would be appreciated.

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  • Sudden complaint that Windows is not genuine - some questions

    - by blade
    Hi, I used to use VMWare Workstation and made several VMs with Win Server 2008, which worked fine. My first tasks were to setup RDP, updates, and activate the OS. I deleted Workstation and thus did not have my VMs available to use for about 2 months. Now I have VMWare Server 2.0.2 as I this is free and I am going to get Hyper-V on a host Win Server in about March, but when I have accessed one of my VMs (haven't tried the others yet), it complains that the copy of Windows is not genuine. I now have a black screen but can access all my apps on the VM. Will the OS eventually shut me out from accessing it? I got my key from the Action Pack but the standard R2 key has been taken down and replaced with the Enteprise R2 key. I have Enterprise R2 but apparently the autorun is corrupt! Thanks

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  • VMWare Player Run as Service

    - by Marshal
    I have a VMWare Player running a VM at all times. However I want the server to run that Virtual Machine on boot (without logging in). This will allow me basically to restart the Server and when it loads to the login screen it's already running VMWare. Any ideas? I have tried reading up on it however websites suggest VMWare Server. This is no longer backed by VMWare anymore. So I am looking to either make VMWare Player a service or if anyone else has any other ideas? Running Win 7 on my server btw Thanks for looking.

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  • Where and How should a Kernel Panic be reported?

    - by KangCoding
    I've Archlinux installed on my laptop Fujitsu Amilo Pi 2*** and I cannot find any log at /var/log that has the StackTrace. The Kernel panics ALWAYS when I try to modify screen brightness. Where are those Logs or StackTraces? Do I have to install any package to catch that StackTrace? Where should I send that Log/StackTrace? Thanks for reading. -- UPDATE 1 I cannot change brightness trough console: xbacklight -get and any other parameter as -dec or -inc always returns: [kangcoding@Pi2530Arch ~]$ xbacklight -set 100 No outputs have backlight property I still cannot find log files or stacktraces of this Kernel Panic. Here is a Photo:

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  • IE9, LightSwitch Beta 2 and Zune HD: A Study in Risk Management?

    - by andrewbrust
    Photo by parl, 'Risk.’ Under Creative Commons Attribution-NonCommercial-NoDerivs License This has been a busy week for Microsoft, and for me as well.  On Monday, Microsoft launched Internet Explorer 9 at South by Southwest (SXSW) in Austin, TX.  That evening I flew from New York to Seattle.  On Tuesday morning, Microsoft launched Visual Studio LightSwitch, Beta 2 with a Go-Live license, in Redmond, and I had the privilege of speaking at the keynote presentation where the announcement was made.  Readers of this blog know I‘m a fan of LightSwitch, so I was happy to tell the app dev tools partners in the audience that I thought the LightSwitch extensions ecosystem represented a big opportunity – comparable to the opportunity when Visual Basic 1.0 was entering its final beta roughly 20 years ago.  On Tuesday evening, I flew back to New York (and wrote most of this post in-flight). Two busy, productive days.  But there was a caveat that impacts the accomplishments, because Monday was also the day reports surfaced from credible news agencies that Microsoft was discontinuing its dedicated Zune hardware efforts.  While the Zune brand, technology and service will continue to be a component of Windows Phone and a piece of the Xbox puzzle as well, speculation is that Microsoft will no longer be going toe-to-toe with iPod touch in the portable music player market. If we take all three of these developments together (even if one of them is based on speculation), two interesting conclusions can reasonably be drawn, one good and one less so. Microsoft is doubling down on technologies it finds strategic and de-emphasizing those that it does not.  HTML 5 and the Web are strategic, so here comes IE9, and it’s a very good browser.  Try it and see.  Silverlight is strategic too, as is SQL Server, Windows Azure and SQL Azure, so here comes Visual Studio LightSwitch Beta 2 and a license to deploy its apps to production.  Downloads of that product have exceeded Microsoft’s projections by more than 50%, and the company is even citing analyst firms’ figures covering the number of power-user developers that might use it. (I happen to think the product will be used by full-fledged developers as well, but that’s a separate discussion.) Windows Phone is strategic too…I wasn’t 100% positive of that before, but the Nokia agreement has made me confident.  Xbox as an entertainment appliance is also strategic.  Standalone music players are not strategic – and even if they were, selling them has been a losing battle for Microsoft.  So if Microsoft has consolidated the Zune content story and the ZunePass subscription into Xbox and Windows Phone, it would make sense, and would be a smart allocation of resources.  Essentially, it would be for the greater good. But it’s not all good.  In this scenario, Zune player customers would lose out.  Unless they wanted to switch to Windows Phone, and then use their phone’s battery for the portable media needs, they’re going to need a new platform.  They’re going to feel abandoned.  Even if Zune lives, there have been other such cul de sacs for customers.  Remember SPOT watches?  Live Spaces?  The original Live Mesh?  Microsoft discontinued each of these products.  The company is to be commended for cutting its losses, as admitting a loss isn’t easy.  But Redmond won’t be well-regarded by the victims of those decisions.  Instead, it gets black marks. What’s the answer?  I think it’s a bit like the 1980’s New York City “don’t block the box” gridlock rules: don’t enter an intersection unless you see a clear path through it.  If the light turns red and you’re blocking the perpendicular traffic, that’s your fault in judgment.  You get fined and get points on your license and you don’t get to shrug it off as beyond your control.  Accountability is key.  The same goes for Microsoft.  If it decides to enter a market, it should see a reasonable path through success in that market. Switching analogies, Microsoft shouldn’t make investments haphazardly, and it certainly shouldn’t ask investors to buy into a high-risk fund that is sold as safe and which offers only moderate returns.  People won’t continue to invest with a fund manager with a track record of over-zealous, imprudent, sub-prime investments.  The same is true on the product side for Microsoft, and not just with music players and geeky wrist watches.  It’s true of Web browsers, and line-of-business app dev tools, and smartphones, and cloud platforms and operating systems too.  When Microsoft is casual about its own risk, it raises risk for its customers, and weakens its reputation, market share and credibility.  That doesn’t mean all risk is bad, but it does mean no product team’s risk should be taken lightly. For mutual fund companies, it’s the CEO’s job to give his fund managers autonomy, but to make sure they’re conforming to a standard of rational risk management.  Because all those funds carry the same brand, and many of them serve the same investors. The same goes for Microsoft, its product portfolio, its executive ranks and its product managers.

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  • Failing RAM, or something else? [closed]

    - by Thanatos
    I have a IBM Thinkpad T43, currently running Windows XP. Programs were crashing, XP was blue-screen-of-deathing, (more than usual) - it was basically unusable, but I couldn't get any informative error out of XP. I booted Ubuntu off a thumbdrive, which made it to the desktop, but as soon as I started to try to do anything, X segfaulted, along with several other services, followed quickly by kernel warnings and a kernel panic. I'm currently running Memtest86+ on this machine, which is spitting out numerous errors. (16k over 3 passes, and counting) The failing areas are numerous, and look something like this: 0001055da4 - XX.X MB, etc. The addresses that fail seem to cluster around 0-20 MB, 250MB, and, more rarely, 750MB, 1000MB, and 1200MB. However, a lot (but not all) of the failing addresses that I've seen end in XXXXXXX?da4 where the ? is a 1 or a 5. The machine has two sticks of RAM, one 512MB, one 1024 MB, the 512MB mapped to the lower addresses, the 1024 MB stick following. Is this indeed RAM failure, or should I consider other things before purchasing more RAM?

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  • Mozilla Persona to the login rescue?

    - by Matt Watson
    A lot of website now allow us to login or create accounts via OAuth or OpenID. We can use our Facebook, Twitter, Google, Windows Live account and others. The problem with a lot of these is we have to have allow the websites to then have access to our account and profile data that they shouldn't really have. Below is a Twitter authorization screen for example when signing in via Technorati. Now Technorati can follow new people, update my profile and post tweets? All I wanted to do was login to Technorati.com to comment on a post!Mozilla has just released their new solution for this called Persona. First thought is oh great another solution! But they are actually providing something a little different and better. It is based on an email address and isn't linked to anything like our personal social networks or their information. Persona only exists to help with logging in to websites. No loose strings attached.Persona is based on a new standard called BrowserID and you can read more about it here:How BrowserID Works.  The goal is to integrate BrowserID in to the browser at a deeper level so no password entry is required at all. You can tell your web browser to just auto sign in for you. I am really hoping this takes off and will look at implementing it in current projects! I would recommend researching it and lets hope it or something like it becomes a wide spread reality in the future.

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  • Workspace Issues on ubuntu 12.10

    - by JaySch
    I'm having the following problem with 12.10 Unity running on a Toshiba A505 16" display laptop using an external 24" Samsung LED monitor (resolution 1920 x 1080 (16:9). Also using the default 2 x 2 workspaces: After powering up the laptop, I Click the Workspace Switcher and the 4 images which represent Workspace 1, Workspace 2, Workspace 3, and Workspace 4 are visible but are in a very elongated, stretched out aspect ratio. Also, any desktop icons placed on the left side of the screen don't show up when I go to full view on any of the 4 workspaces. To resolve this issue, I open up the laptop lid until the video display switches from the external Samsung LED monitor to the internal laptop display, which renders the four workspaces perfectly. I then close the laptop lid and now the workspaces display the correct aspect view; both in the workspace switcher thumbnail view an in full view. I can now see the full desktop, including any desktop icons. Is there a way to configure my system so that Workspaces work properly when the laptop is connected to an external monitor without having to open and close my laptop? Thank you.

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  • Sub-systems in game engines

    - by Hillel
    So here's the problem- I'm writing my own engine library, and it works fine with stuff like menus and the actual game screen. The thing is, I can't really figure out how to integrate something like an intro or dialogue preceding certain levels into this system. Let's look at another example- say I have a game-specific engine which gets a Level object and runs it. Engine would have its own collision and physics system, all hard coded. Now, what if at some point in a level, I want the player to enter a mini-game with different rules? How do I morph the Engine class to support these sub-systems without having to deal with their code all the time (as in: if(regular game) ... else if(mini game) ...)? And what if I want an intro animation at the start of a level, and I want the player to be able to assume control of his character once the animation ends, do I implement the animation into the Engine class itself? Or maybe I need to run another class, CutScene, and when it ends, it calls Engine and starts the level? What if I want to add a dialogue system, where at the start of each level there's a short dialogue and the player can't control his character, and once it ends, he can? Would I then run the dialogue code inside the Engine code? Maybe these sub-systems should all be scripted? I don't know anything about scripting, is it necessary for this kind of situation? Any help would be appreciated.

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  • Ubuntu 12.10 won't display properly after kernel upgrade

    - by Daniel
    After updating a system today, Ubuntu's doesn't display correctly. The desktop now looks like this. It was working properly before. I had to use the terminal to run synaptic package manager, so I could view the update history; which is as follows: Commit Log for Wed Nov 7 11:50:36 2012 Upgraded the following packages: linux-image-generic (3.5.0.17.19) to 3.5.0.18.21 Installed the following packages: linux-image-3.5.0-18-generic (3.5.0-18.29) linux-image-extra-3.5.0-18-generic (3.5.0-18.29) Prior to this issue, the last active driver was nvidia-current-updates, version 304.51. I tried using the nvidia-current driver, version 304.51.really.304.43 instead, but the problem persists. I tried running nvidia-settings from terminal, so I could try configuring something, but the application informs that the Nvidia driver is not being used. As the x-swat repository has nothing for Quantal, I desperately used the unstable x-edgers repository & upgraded, but to no avail; so I purged it. The display should normally be full HD, but the only available resolutions now are 1024x768(4:3) and 800x600(4:3). The system is Dell XPS-L702X, with NVIDIA GeForce GT 555M, and 17" screen. How can I fix this problem? Update: I tried using the Nouveau third-party driver & this fixes the issue. However, if you have any idea how to get the Nvidia drivers working properly with the latest kernel, please share; as I've noticed some videos playing very slowly on the system, though I'm not sure exactly why.

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  • Unity gizmos vs. referenced game objects

    - by DuckMaestro
    I'm designing a Unity script that I intend to be highly reusable and as easy as possible to setup within the editor. To this end, a number of properties of this script really need some kind of visual representation on screen. It is an unresolved question to me whether the design of the script should require references to placeholder game objects, OR just Vector3's and float's that have associated gizmos drawn for them. Normally a gizmo would be a natural choice, except that Unity gizmos are not directly manipulable (as far as I can tell). Because of this shortcoming I'm having to consider whether depending on references to placeholder game objects is a more designer-friendly approach ultimately, in spite of the extra setup required, and that it might be counter-intuitive when the placeholder game objects disappear at run-time (which my script would do). Is there a community standard or preference here in this case? Can a Unity-experienced game programmer / designer speak to which approach they feel is more intuitive or more convenient to setup, when using a 3rd party script? Or is this just splitting hairs as long as I ship an example prefab with my script?

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  • Upgraded from 11.4 to 11.10, There was an error, now the system won't initiialize

    - by Eric
    This morning the system gave me a message that my Version (11.4) was no longer supported, and I took the 'upgrade' option (- 11.10). While installing the various components I encountered a message to the effect that the there was an error and the system may have become unusable. Among the messges: E:Sup-process /usr/bin/dpkg received a segmentation fault...returned an error code (1). I was given an option to do several things, one of which seemed to mean that it would attempt to roll back to the previous version (the default), which I took. After the process ran it said the upgrade process had finished, but there were errors. I attempted to initialize a console so I could enter ubuntu-bug update-manager /var/log/dist-upgrade, per the instructions I received when I received the error message, but the console failed during initialization. I restarted the machine, and the screen has stopped with the following contents: * Starting bluetooth * Stopping save kernel messages * Starting CUPS printing spooler/server * PulseAudio configured per-user sessions saned disabled: edit /etc/default/saned $starting up Cisco VPN daemon *Starting anac(h)ronistic cron *Stopping anac(h)ronistic cron Each of these steps followed by [ OK ] What are my options? Any help appreciated!

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  • Can't set up Usermin correctly to allow users to login outside of local network, what am I missing?

    - by thecraic
    I'm fairly new at creating a server, but the biggest problem I am currently having at the moment is getting Usermin set up to be accessible from outside the LAN. I talked to other people that use it and was told that all I need to do is type the url:20000 to access the login screen, but that doesn't work. I have also tried the ip:20000 and that doesn't lead to anything. Instead I get the error message: Error - Bad Request This web server is running in SSL mode. Try the URL https://hostname:10000/ instead. (where hostname is my server's hostname) I know it must be a configuration issue, but I have checked all my settings and as far as I can tell I don't have the ports blocked anywhere. I have the correct ports forwarded on my router and my server firewall doesn't have the port block either. Is there anything I am missing? Any help would be appreciated and I will add more information upon request. Thank You.

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  • Intel HD 4000 driver not working

    - by Sagar Parakh
    I have a Dell Inspiron 15r se 7520. I have upgraded my system to Windows 8.1 few days back. After the upgrade, my Intel HD 4000 graphics driver stopped working. I have downloaded the latest driver from Dell website but during installation it said that my graphics driver is not compatible or validated and also my dedicated graphics driver AMD ATI Raedon HD 7730m also stopped working. There is also a problem with my screen brightness: I am unable to change it. How to make my graphics driver work?

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  • how to google a symbol keyword like "$?"

    - by ZhengZhiren
    i saw a trick in a book: in a linux shell, we can use &? to get the return value of a command. For example,we run a command,if it exit normally, the return value is 0. And then we type $?,we will get 0 in the screen. i want to google this kind of usage, so i have to type these two symbol $? in the search blank.But the search engine just return nothing to me... i have looked at the google help page, but still can't find a solution. so my question is: how can i search with this kind of keyword. or if you can give me some advise of the usage of $? or sort of thing, that will be also appreciated.

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