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• 12.04 freezes on install

  - by CHris

  I'm new to ubuntu and can't for the life of me understand how to get around this issue. I'm having a problem where when I insert the boot disk that i burned for 12.04, it loads and gives me the language option and select an installation type, i select either try ubuntu / install ubuntu and it begins to load. Then after about 5 mintues of the purple screen with the dots under the UBUNTU it freezes the whole computer, and the only way to get out is to turn off the laptop with the power button. I have read previous threads saying people had similar "freezing" issues including ones that mention my model of laptop, HP Pavillion DV1000. But it appears their problems are post installation and relate to their wireless cards. I have tried changing the boot options (F6) and I am totally stuck. Can anyone shed any light on to this issue? Thanks in advance.........

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• Setting up wireless drivers in Ubuntu 9.10?

  - by xdya

  I've just installed ubuntu to a notebook, deleting the windows xp that was installed before, so now nothing works I couldn't solve the problem of getting the blank screen with the versions 12.. and 10.. so now there is 9.10 installed, which works fine. Well, it boots up at least. I can't get working the drivers though. I'm totally new to linux, and I've read in some forums that in this version you have to install all of them yourself, because the system won't detect them automatically. Therefore I tried to find the drive for my wireless card, but actually I have no clue how to get it work. Could someone please help me out? So here are the specs: System installed as mentioned: Ubuntu 9.10 Computer: Acer Aspire 3100 Wireless according to laptop specs: 10/100 Fast Ethernet, Wake-on-LAN ready, Acer InviLink™ 802.11b/g Wi-Fi CERTIFIED I would really appreciate some detailed description to setting up my internet Thanks!!

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• How to get Unity interface on my PC?

  - by Prarobo

  I downgraded by PC to 11.04 from 12.04 2 days ago. I was using the Unity interface and I am quite used to it. Today when I started my PC, I got a message (after the login screen showed) saying that my system does not support Unity and it automatically defaulted me to the classic interface. Now when I start my PC, even when the interface choice selected is Ubuntu and not Ubuntu Classic, it falls back to the classic interface. Any advice on how to get Unity back?

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• Problem with ubuntu 12.04

  - by Luc1Hz

  It's first time when i use ubuntu.I downloaded and installed 12.04 version of ubuntu.It works fine but sometimes when i shut my pc down from ubuntu and i try to start it again,nothing shows on the screen.It's always black and it shoud appear Acer logo(i have acer aspire 5573)It's like the sistem is restart again and again but it can't boot ubuntu(or windows,i use dualboot)The meniu(where i can choose between windows and ubuntu it's not displayed because the pc don't start correctly.When this happens i shut down the pc definitively and i remove the battery and i put it again.Then everything works fine.How do i repair it?I think that could be a incompatibility with the pc because with windows everything works fine.Help please and sorry for my horrible english...Thanks!

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• What techniques can I use to render very large numbers of objects more efficiently in OpenGL?

  - by Luke

  You can think of my application as drawing a very large ball-and-stick diagram (or graph). At times, this graph can get very large, where the number of elements even outnumbers the pixels on the screen. Currently I am simply passing all of my textures (as GL_POINTS) and lines to the graphics card using VBO's. When the number of elements outnumbers the number of pixels, is this the most efficient way to do this? Or should I do some calculations on the CPU side before handing everything over to the GPU? If it matters, I do use GL_DEPTH_TEST and GL_ALPHA_TEST. I do some alpha blending, but probably not enough to make a huge performance difference. My scene can be static at times, but the user has control over a typical arc-ball camera and can pan, rotate, or zoom. It is during these operations that performance degradation is noticeable.

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• Unable to Install [closed]

  - by Rajesh

  I have been trying to install Ubuntu on my PC for some time now. I tried wubi, but am unable to get it right. Then, I downloaded the ISO and tried to install it on an empty without partitioning, but the keyboard acts wierd and goes on typing automatically one particular letter that was typed while trying to enter IPv4 settings (2222222222 or ............, etc...) and also I get an error about some fsyncing\sdk\resourses something like that. Please help me. UPDATE: I managed to install it but I get a blank screen after logging in. Just the wallpaper shows up! Help me.

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• Switching to an external display, when primary is broken

  - by Shazzner

  I've successfully install Ubuntu 11.10 Desktop (x86) on an old(er) laptop that unfortunately has a broken screen, so there is an external monitor plugged in. On the livecd it come up on the secondary display just fine and I was able to install ubuntu and everything. Unfortunately when I reboot into Ubuntu proper now, the secondary display is off and I'm literally driving blind here trying to switch it to the secondary display. Using Nvidia open source drivers. Things I've tried: Rebooting back into livecd, mounting the partition and trying in vain to find a config file (it uses the open source drivers so no Xorg.conf I could edit manually) Trying to blind-type xrandr settings into what I hope is terminal: xrandr --output VGA1 --auto (nothing happened) Trying to blind install openssh-server so I could ssh into it and maybe configure it from my working computer. For some reason though, no luck. Ubuntu really should default to expanding to all screens for this use case.

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• I want to increase the size of my boot partition (Ubuntu 14.04 version) [duplicate]

  - by Mike

  This question already has an answer here: How do I free up more space in /boot? 11 answers How to resize partitions? 5 answers I read in another post that kernels are distributed as new releases rather than upgrades. I didn't know this when I was allocating space to my partitions during my initial install of Ubuntu. As a result I ran out of space on my boot partition. Can I increase the size of it using GParted and how do I do this without doing damage to my system? 1 1049kB 512MB 511MB fat32 boot 2 512MB 768MB 256MB ext2 3 768MB 1000GB 999GB lvm Model: Linux device-mapper (linear) (dm) Disk /dev/mapper/ubuntu--vg-swap_1: 3712MB Sector size (logical/physical): 512B/4096B Partition Table: loop Number Start End Size File system Flags 1 0.00B 3712MB 3712MB linux-swap(v1) Model: Linux device-mapper (linear) (dm) Disk /dev/mapper/ubuntu--vg-root: 996GB Sector size (logical/physical): 512B/4096B Partition Table: loop Number Start End Size File system Flags 1 0.00B 996GB 996GB ext4 Sorry, don't know how to capture and post the terminal output screen.

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• Upgrading Ubuntu to 12.04 stuck

  - by Chris Britt

  While upgrading from 11.10 to 12.04, I'm stalled at the step: Installing new version of config file /etc/init/udevtrigger.conf The Terminal in the Distribution Upgrade window is expanded, there is no prompt for user input. I've hit enter a few times but it doesn't change anything but add a blank line after the last print statement. It's been sitting for ~6 hours at this stage. No other windows or dialog boxes are open. The upgrade has progressed through "Preparing to Upgrade", "Setting new software channels", and "Getting new packages". Under the progress bar (which estimates 1 day 2 hours remaining, and has for some time), it says Preparing to configure libpcap0.8. I'd take a screen-shot, but it won't let me save the file anywhere. The progress bar is about 1/3 complete.

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• LXDE will not suspend when laptop lid is closed, and will die when woken up

  - by user46061

  I am not an experienced Linux user, although I have been using Ubuntu occassionally some time already. ( Since Feisty Fawn probably? ). Now I installed Ubuntu 11.10 and it is nice ( well, after I installed LXDE, Unity sucks and I didn't really like gnome-fallback-session ), but it has one problem: After being suspended, when I wake my computer up, it starts up and in about 5 seconds it dies. Like a normal shutdown. Then, when I start it again, the screen stays blank, so I have to hard-turn it off - only then, when I turn it on, it works. It is an MSI laptop, about 3-4 years old. The second problem is: After installing LXDE, when I close the laptop lid, it does not suspend. I can only suspend using the shutdown menu - and the waking up problem remains. Many thanks for your time and advice guys.

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• Where can I find some Cocos2dx beginner tutorials?

  - by Skeith

  I have tried to start programing with Cocos2dx but I have no idea where to start and the tutorials are no very not very helpful. What I am looking for is some tutorials/guides on how to begin using cocos2dx for the total beginner. Things like how to setup a project and run it and how to do simple things like draw graphics on the screen, play sounds and get input. I am running on windows 7 and have been told by the Cocos2dx wiki that this may cause problems so if anyone has a solution to this that would also be helpful.

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• Created Custom Report in Google Analytics, Primary Account Doesn't See It?

  - by Anagio

  A client shared access with me to their Google Analytics account. I created a custom report which shows up under Custom Reporting for me. I assumed they would also see this report since it was in their account but they sent me a screen shot showing there's no custom report listed. I have already sent them the shortcut link to the custom report configuration. This seems to be the way to share custom reports along with dashboards in GA now. Do custom reports only appear to the accounts (email) that created them? I would think everyone who had access to the account would see the custom report.

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• Ubuntu 12.04 cannot start

  - by user57215

  I just installed Ubuntu 12.04 64bit, and I cannot start it. I tried twice. The first time, I used a CD I burned. (The CD works for my another computer, so it is OK.) After wubi did something in Windows, it rebooted. Then the screen was stuck where there is an ubuntu logo at the center and 5 dots below. I waited for more than half hour, it was still there and nothing happened. The second time, I installed 11.10, then upgrade to 12.04 in a the newly install 11.10. BTW, the 11.10 did start. After upgrading, I rebooted the computer, it was stuck at the same place. Any one can help me on this? The computer is AMD Phenom II X4 965 + ATI RADEON HD4870. Thanks a lot!

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• Vectors with Circles Physics -java

  - by Joe Hearty

  This is a problem I've been having, When making a set number of filled circles at random locations on a JPanel and applying a gravity (a negative change in the y), each of the circles collide. I want them to have collision detection and push in the opposite direction using vectors but i don't know how to apply that to my scenario could someone help? public void drawballs(Graphics g){ g.setColor (Color.white); //displays circles for(int i = 0; i<xlocationofcircles.length-1; i++){ g.fillOval( (int) xlocationofcircles[i], (int) (ylocationofcircles[i]) ,16 ,16 ); ylocationofcircles[i]+=.2; //gravity if(ylocationofcircles[i] > 550) //stops gravity at bottom of screen ylocationofcircles[i]-=.2; //Check distance between circles(i think..) float distance =(xlocationofcircles[i+1]-xlocationofcircles[i]) + (ylocationofcircles[i+1]-xlocationofcircles[i]) ; if( Math.sqrt(distance) <16)

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• Adding gesture recognizer (or dragging) to CCSprite

  - by user339946

  I'm trying to allow a CCSprite to be dragged across the screen. I've succeeded so far by doing it on a Layer level (from this tutorial). However, this only allows ONE sprite to be dragged at a time as the method implementation can only identify a single sprite to move at a time. I'd like to be able to perhaps add a gesture recognizer or somehow implement ccTouchesBegan/Moved in my own little CCSprite subclass. However, from what I understand, you can't just add gesture recognizers to CCSprites. ccTouchMoved are also not available on CCSprites?? Really confused as to how to implement touches on Cocos2D. What is the easiest way to add some position translation code to a CCSprite so it can be dragged around? Thanks!

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• cant boot with graphics in uefi

  - by user205996

  I really searched for information to this problem but none of the guides or threads on forums have helped, either i cant search or this havent come up. No nomodeset, forcevesa, turning brightness up or anything have worked.... I bought the laptop with ubuntu 13.04 preinstalled, bumblebeedrivers were on it but primusrun broke on the ubuntu 13.10 update. Decided to reinstall ubuntu and install windows at the same time, so now I got windows up and running from uefi and have installed ubuntu 13.10, grub works for windows and everything seems like normal. But when I try to boot ubuntu i cant manage to boot into anything else than failsafe rootterminal. Screen just go black or i have a blank terminal flashing i upper left corner.... Dont know anything about X configuration or what to do. If anyone has an idea please let me know. Laptop: Clevo w230st intel i7 haswell intel hd4000 (?) nvidia gtx765m

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• fresh install, update and x-windows no longer working after login 12.10

  - by Tigz

  I Just recently installed desktop 12.10 on laptop, all was working fine logged in and it stated it wanted to update as it found updates. naturally I let it update and it asked me to reboot to use the new updates did that, now it boots fine i get login prompt. login as per normal then all i get is background with nothing else, if i turn off the wireless i get the disconnection notification pop up but i have nothing else on screen any wrror messages gets displayed as well but their is nothing. their was one program that failed that no longer prompts which gives options of reloading or just closing and continuing either way it just look like it hangs I can ctrl alt del to log out and it does that fine but still wont load no mater how many times i try saw a topic about a ati driver playing up which he typed the following in a ty which i can get to all of them as well. export DISPLAY=:0;gnome-shell --replace the answer i got back was the program gnome-shell is not installed you can install it by typing sudo apt-get install gnome-shell i also tried sudo pkill X which did nothing any help would be appreciated Thanks

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• No sound/audio after resuming from sleep

  - by hansvonaachen

  I've made a fresh UEFI install of Ubuntu 13.10 (64 bit) on a Lenovo Ideapad Z510 laptop with Intel i5 4200M processor. Ubuntu is the only OS installed on the computer, secure boot disabled. Everythings works fine (backlight issue fixed after editing rc.local file), the only minor trouble I have is resuming the laptop from "sleep" mode. If I close the lid and then wake the laptop opening it again, there is no audio/sound. I need to restart the computer (not even logging out helps). If I suspend the computer in a graphical way (not closing the lid): gearwheel in top right of the screen -- suspend and wake it up/turning on, audio works with no issues. Ideas how to fix this? Thanks!

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• kernel panic - diagnosis?

  - by user94188

  I'm having a kernel panic problem - my machine will run for hours, maybe all day and then have a panic attack. I have no idea how to interpret the output, but here's a picture of what's left on the screen when it happens: https://dl.dropbox.com/u/13279067/photo.JPG (I can't post images yet) I've looked through the logs but didn't find anything obvious - I'm still learning though so I've probably missed something. It's a little harder since it's always happened when I've been out or at night so I can't pinpoint the exact time it crashed. Anyone have advice? thanks

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• System doesn't boot due to a "[drm: drm_crtc_helper_set_config] * error * "

  - by Albin

  I have a problem with the new Ubuntu 12.10. It finished installing correctly, but when I restart my computer an error message appears: [15.854296] [drm: drm_crtc_helper_set_config] * error * failed to set mode on [CRTC: 10] * checking battery state [17.814209] [drm: drm_crtc_helper_set_config] * error * failed to set mode on [CRTC: 10] and that screen does not advance. I also tried booting from the recovery mode and it starts, but it's too slow loading windows and also shows me a window with an error message: Sorry Ubuntu 12.10 has experienced an internal error More Details: Executable path /usr/bin/xorg I have used Ubuntu since the 2008 version and never had this problem. I hope you can help me. Computer Specs: compaq sr2015la AMD sempron 2Gb. RAM 80Gb Hard Drive Translated from the original Spanish

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• How do I repeatedly move an image by 1 pixel?

  - by Will

  I have a method that is moving a UIImageView called shootImg across the screen: -(IBAction)shoot{ if (appDelegate.shootInt > 0) { if (direction == 1) { shootImg.center = CGPointMake(shootImg.center.x+1, shootImg.center.y); appDelegate.shootInt = appDelegate.shootInt - 1; shootLabel.text = [NSString stringWithFormat:@"%d", appDelegate.shootInt]; } This does seem to work. But it only moves shootImage 1 pixel. What I want to do is make it repeatedly move 1 pixel. I tried a while loop but that didn't seem to work. I'm not using cocos2d or anything like that and if you need to see more code just ask. Thanks :)

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• Should I drawing directly on CCLayer or CCSprite?

  - by einverne

  Now I am a little confused in my cocos2d-x cpp project. I want to draw lines with user's finger touch. Following the screenshot of a CCScene: In the screen, there are two squares. I want show an animation in the first square and let the second one draw lines with user touch. Now these two squares are CCSprite. And I can draw dots in the second one on the CCLayer. But I am little confused that I should draw lines on the Sprite or on the Layer. Or are there other ways to organize the code?

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• Cannot boot Windows 7 after installing Ubuntu 13.04

  - by whowantsakookie

  So I boot up my computer after installing Ubuntu 13.04. Grub correctly shows me all available boot options and I am able to boot to Ubuntu. However, when I try to boot into Windows 7, grub hangs at a purple screen. I have an HP laptop. It came with all four primary partitions taken up by the Windows bootloader, the actual Windows partition, one called HP_TOOLS, and another for HP Restore. I was able to back up and delete HP_TOOLS and the recovery partition, and change my disk type from Dynamic to Basic (GParted doesn't recognize Dynamic drives). I then booted into a live session of Ubuntu and made two partitions with GParted: one large partition for storage space that I could use between the two operating systems (sda4), and another extended partition (sda3) which contained Ubuntu (sda6) and it's swap space (sda5). It currently looks like this: I'm not sure if the second paragraph is actually relevant, I just want you to know all the variables in the equation. Thank you in advance for helping this poor noob.

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• Problems booting Ubuntu 10.10 with Nvdia GeForce 6600gt

  - by SlyrNemesis

  I am quite new to Ubuntu and I already stumbled upon a problem. I run Ubuntu 10.10 Maverick Meerkat now and Install went fine, when trying to boot the screen popped black and I faced this message "gpu lockup - switching to software fbcon." When setting the display to onboard VGA through BIOS Ubuntu has no problem at all, but when I switch back to my AGP card (which is a Nvidia GeForce 6600GT) I get that message again. I do not use VGA for that card I use my DVI cable for it. Does anyone have an answer for me to make this work? Thank you

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• The system is running in low graphics mode error before ubuntu gets installed

  - by hellodear

  I am using Bootable USB for installing Ubuntu with Windows 8.1. I have put pendrive and then booting my USB. When it shows me to try Ubuntu or install Ubuntu. Then I press Try ubuntu and then it says" "The system is running in low graphics mode". Then I press Ok. Then it shows 4 options. Then again I click Ok. Then it shows a black screen and nothing happens. I have tried all possible answers provided in AU. What should I do? Please help. I am using Windows 8.1 with dedicated graphic card (Video card - AMD Radeon HD 8670M). Installing 12.04 LTS with pre-installe Windows 8.1 in a Dell Laptop 3537 inspiron.

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