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• Need alternative to Accessibility's "Locate Pointer" to visually highlight the mouse.

  - by fred.bear

  Update: See end of quetion: A black-on-white cross-hair/I-bar mouse-pointer is soemtimes hard foe me to spot in amongst black-on-white text. I've tried "Accessibility / Mouse Accessibility / Locate Pointer" .. which will: Show pointer position when Control is presssed It works (to a point), but it does have a notable problem, which renders it inpractical. It has the uncanny side-effect of disallowing all Control key navigation while editing a file/dir name in Nautilus (F2).. Just touching the Control key drops it out of edit mode, which means I can't keyboard paste, move-L/R word etc... So, I'm looking for an alternative. I've tried Compiz's Water Effect, but I need something which is sharper, faster, and localized to the pointer. Compiz's Show Mouse (with fire) is no suitable. I'm really lookingf for an analog of "Accessibility / Locate Pointer": * ie. I hit Control (only).. and it blips a quick visual pulse. UPDATE: I've just realized why I can't find my mouse so often! ... It's because it is isn't there !!! ... Two apps I use a lot, Gedit and Konsole (KDE Terminal; it renders unicode better), ... dissolve the mouse-pointer to invisible after the first key is typed ... and Konsole does it after a few seconds of idle-time... like a video-player option: "hide the mouse".. Well I don't use the mouse much, and I thought it was juse my eyesight (which does rely a lot on Compiz's zoom)... I discovered it when I installed a "novelty" app, called Geyes from gnome-applets ("A goofy set of eyes for the GNOME panel. They follow your mouse.") ... It could follow the mouse better than me! :)

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• Can no longer boot with rEFIt and Grub on early 2006 MacBook Pro

  - by Don Quixote

  I don't know what happened to cause this. I have Snow Leopard, Ubuntu 11.04 Natty Narwhal and Windows XP SP3 on my early 2006 MacBook Pro. It is a Core Duo unit, NOT Core 2 Duo, so it is 32-bit only - Model Identifier MacBookPro1,1. I use rEFIt 0.14 for my boot menu. For some reason neither XP nor Ubuntu would boot anymore. I'd just get a black screen with a rapidly flashing underscore in the top-left corner. Having both those OSes failing to boot suggested a problem with the boot loader in my MBR. The rEFIT partition tool verified that my MBR partitions were still synced with my GPT partitions, so I rewrote my MBR partition table with fdisk while booted from Parted Magic: # fdisk /dev/sda (fdisk warns about the disk having a GPT. I press on anyway.) p (Print the existing partition table to make sure it's OK.) w (Write the old partition table back to disk. This also writes a new MBR boot loader.) After this XP would boot but Ubuntu would not, with the same symptom. Now I used update-grub while chrooted into Ubuntu from Parted Magic: # mount /dev/sda3 /mnt # mount --bind /dev /mnt/dev # mount --bind /sys /mnt/sys # mount --bind /proc /mnt/proc # chroot /mnt Chroot issues some warnings about not being able to identify some group IDs. I don't know why that happens, or whether it is a problem. At this point while I am still booted off of Parted Magic's kernel, I am running from Natty's filesystem. # update-grub Update-grub detects each of my operating systems then claims to complete successfully, but still won't boot. I asked this same question over at rEFIt's Sourceforge support forum but there have been no replies yet. I also Googled quite a bit, and see many who have the same black screen problem, but none of their situations seem quite like mine. Thanks for any help you can give me. -- Don Quixote

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• OpenGL profiling with AMD PerfStudio 2

  - by Aurus

  I'm rendering just a really small amount of polygons for my UI but however I still tried to increase the FPS. In the end I removed redundant calls which increased the FPS. I really don't want to lose FPS for nothing so I keep looking for more improvements. The first thing I noticed is the "huge" time where no calls are made before SwapBuffer (the black one). Well I know that OpenGL works asynchronous so SwapBuffer has to wait until everything is done. But shouldn't PerfStudio mark this time also as black ? Correct me If I am wrong. The second thing I noticed is that some glUniform2f calls just take longer (the brown ones). I mean they should all upload 2floats to the GPU how can the time be so different from call to call. The program isn't even changed or something like that. I also tried to look at other programs like gDebugger or CodeXL but they often crashed and they show less statistics (only # of calls or redundant calls etc.) EDIT: I also realized that the draw calls also have different durations, which was obvious for me but sometimes drawing more vertices is faster than drawing less vertices.

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• Ubuntu 13.10 AMD/ATI proprietary driver slow boot time, lengthy login/logout delays

  - by NahsiN

  Ubuntu 13.10 is causing me major headaches with my AMD/ATI HD 5770 GPU. Below is a list of problems I am currently encountering. 1) The boot time is extended by at least 25s after installing catalyst 13.4. Using open source radeon drivers, my boot time till the login screen is ~10s. With catalyst 13.4 installed, the boot time increases to ~35s. This was not the case in Ubuntu 13.04, 12.10 or 12.04. I have done the driver installation manually (instructions from wiki.cchtml.com) and using software center and there is no difference. I have not tried the catalyst 13.8 beta driver. 2) After manual installation of catalyst 13.4, I get stuck at a black screen after logging in. I have to purge fglrx to resolve the problem. I tried sudo amdconfig --initial -f but it didn't help. 3) The delay between logging in and unity being displayed is ~10-15s for BOTH open source and proprietary drivers. During the delay, it's just a black screen. Whenever I logout, there is again a ~10-15s delay with the login screen appearing stuck before lightdm allows me to enter my password again. This is ridiculous! Yes, I could stick with open source radeon drivers but I would like to install Steam and play my Valve collection on the machine. Is anybody else encountering similar issues?

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• When running a .jar application with OpenJDK, my keyboard becomes unresponsive?

  - by Mochan

  I recently downloaded a Java application with the .jar format, and had it running on my computer not so long ago. Now that I'm using my desktop instead of laptop temporarily, I want it to run. On my laptop it was a tremendous hassle to get OpenJDK to even run the application without it going black, and now on my desktop I don't have that problem. However, when I run the application, my keyboard becomes unresponsive and doesn't type at all. This is a really big problem because it's demands the use of a keyboard. It works as normal on my laptop though, and it works perfectly. But now on the desktop its completely useless. I don't know if there's like a keyboard driver I'm missing, but there shouldn't be because the keyboard runs flawlessly everywhere else. I'm using OpenJDK 6 because the 7 has the same 'black screen' I mentioned, so I need this to work within OpenJDK 6. Thanks so much in advance and I'll try to specify as many details as I can. M

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• NVIDIA Graphics - resolution problems with new 12.04 LTS installation

  - by Daveisuser56810

  I've been trying to install Ubuntu 12.04 LTS on my desktop most of the day. The desktop uses a NVIDIA GEFORCE 9800 (GT I think) graphics card. I am unable to set the correct resolution (1680 x 1050) for the display. The first problem I had was that of the "Black Screen" during install. I overcame this by utilising the "nomodeset" switch on the install options (once I'd found how to do that). The second problem of course was the "Black screen" following the first reboot. Once again this was overcome by using "nomodeset", this time by "editing" the GRUB. This gave me a resolution of 1280x768 which, the Displays GUI allowed me to change to 1280x720 (appears to fit on screen). I then tried to install the NVIDIA drivers. 1) using additional drivers 2) manually by downloading driver and installing in root As soon as NVIDIA drivers are installed - resolution become restricted to 640x480 (max). At this resolution Ubuntu GUI is not usable as most screens are larger than the display. Removing the NVIDIA driver and removing the XORG.CONF file does not lift this restriction. I have tried most things that I have found and that were vaguely intelligible, but nothing appears to get me closer to a resolution of 1680x1050. UPDATE: reinstalled Ubuntu 12-04 and used the "NoModeSet" in the Grub to restore the resolution to 1280x720, which is at least usable. Will live with this for now.

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• Screen doesn't turn back on after resume on a Lenovo Thinkpad T420

  - by Wojtek

  Every time I suspend my notebook (Lenovo Thinkpad T420 - Intel HD graphic card) on Oneiric Ocelot 11.10 and turn it back on, the screen is black. The backlight is on and the system itself loads fine, but the display somehow doesn't get back. The first time after a fresh reboot the screen isn't black, it is mostly white/light-gray and it looks a bit like a distorted image. The pixels fade in until it gets almost completely light-gray. I've got a workaround for this: I switch to the first terminal (CTRL+ALT+F1) and back to X (CTRL+ALT+F7). In most cases that helps. Sometimes, when there's still a problem, I log in on the first terminal and run "unity --reset". Then go back to X - this helps always. I can tell that the system comes back, because I can log in with my fingerprint reader (or wait a bit and put in the password) "blindly", then do the workaround - I am logged in after the screen comes back. So it's only the display that is not working. Any help or advice where to look would be appreciated.

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• Further question on Intel graphics driver

  - by Thomas Byers

  Ok, Josh answered almost immed.! I need to know specifically, now that I am using Nvidia card effectively, do I need to allow update manager to update the intel gr. drivers? I must add, I believe I know why Update Manager is telling me I need to update those Intel gr. drivers. It probably happened because I tried to update my nvidia drivers and got a buggy install, which let to to a black screen. I shut the system down manually after that and rebooted to a black screen and upon a further reboot I ascertained that I could still dual-boot(windows 7) into the other os. Then I went through the restart process and at the grub2 menu chose other options and it was probably, at that time, that Linux was smart enough to know that nvidia drivers as installed weren't cutting it, and reverted to the onboard Intel graphics system...does that make sense? Anyway, after successfully getting up and running, I reinstalled my old but successful nvidia drivers and all was well again, except now upon running Update Manager, I am offered the Intel graphics driver upgrade each time, which, up til now I have unchecked...my question is now more obvious. Should I accept the Intel driver update and if I do, will it once again override my nvidia drivers?

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• Ubuntu won't fit 10" netbook's native display

  - by Daniel

  I recently removed Windows 7 Starter from my netbook, and replaced it with Ubuntu 12.10. The problem is some bits of the system doesn't fit the native display resolution of 1024x600 i.e. the bottom bits of Ubuntu is hidden beneath the screen & the only 2 available resolutions are: the default 1024x768 and 800x600. I've also thought about replacing Ubuntu with Lubuntu or Puppy Linux, as the system does run a bit slow, but I can't, as then I won't be able to access the taskbar and application menu which will be hidden beneath the screen. Only Ubuntu with Unity is currently usable, as I can see the Unity Launcher. My Netbook model is HP Mini 210-1004sa, which comes with Intel Graphics Media Accelerator 3150, and has a display 10.1" Active Matrix Colour TFT 1024 x 600. I was able to define a custom resolution 1024x600 using the Q&A: How set my monitor resolution? but when I set that resolution, the desktop area is lowered, with bits of it hidden beneath the screen; & there's a black space left at the top of the screen. I had to revert to the old setting 1024x768 to push the desktop upwards and remove the black space.

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• screen does not wake up after suspend/ brightness will not adjust

  - by Nathan

  My computer is one of these: http://www.newegg.com/Product/Product.aspx?Item=N82E16834230467 Asus Zenbook UX32A-DB51 Just bought it yesterday. Set to "suspend" when I close the lid, but when I open it up again I just get a black screen. Pressing the power button doesn't work, not does clicking the mouse or any key combination. The same is true if I leave the computer until it suspends. Black screen, no response, have to reboot. I also can't seem to adjust the brightness. I put "brightness up" and "brightness down" function keys in, and when I push them it shows the brightness level as going up and down on the meter, but the screen does not actually become more or less bright. I am totally new to all of this. Please tell me what additional information you need to help me and where I can find it. Thanks! Edit: Tried the following: sudo gedit /etc/default/grub Change the line GRUB_CMDLINE_LINUX="" into GRUB_CMDLINE_LINUX="acpi_osi=Linux" sudo update-grub Restart your linux And "acpi_backlight=vendor" both to no avail.

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• HP Pavilion 15 with AMD dual graphics - Ubuntu live environment not starting

  - by creepus

  I've had this laptop for about a day now and have decided to try Ubuntu on it and determine if I want to install it. I created a USB, it booted (Secure Boot was on, I tried with Secure Boot off to no effect), and then the problem occurred. The screen turned off for a second, turned back on to a black screen, shut off again and turned back on with a dialogue box telling me that the system had to use low-graphics mode. I clicked OK, selected low-graphics mode from the menu and clicked OK. The screen switched to the boot messages and did not go any further than this. Ctrl+Alt+DEL started rebooting the laptop though. I tried booting again, but this time I edited the boot options in GRUB to add nomodeset. This time, the laptop only booted to a black screen. Ctrl+Alt+F2 took me to a prompt, I tried startx from there, but X didn't start, complaining that it wanted kernel mode setting back. I can not seem to find any option to disable one graphics chip or the other in the UEFI setup menus. Laptop : HP Pavilion 15-E004AU. The CPU : AMD A6-4400M APU with Radeon(tm) HD Graphics The graphics chip : AMD Radeon HD 7520G + 8670M Dual Graphics. The Ubuntu version : 13.10, 64 bit. Thanks. EDIT: I tried 12.04.3 LTS, it managed to bring the desktop up. There are severe graphics glitches after about two minutes though.

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• Game: Age of Empires sound good but video "out of range"

  - by Ezekiel

  I'm new to the Ubuntu realm. Currently i'm using Linux Mint 12 with Wine 1.4 and PLAYONLINUX as game loading/playing programs. Video card is MSI GeForce FX5200 (NVIDIA) and is 3d enabled. I can play "Call of Duty 5 demo just fine. My real love is the Age of Empires series games. I loaded the WINE version of AOE 1 demo. No sound and no picture. Black screen with "Out of Range" window in red. I loaded my CD version of AOE 1 through PLAYONLINUX. I get the sound just fine but again the black screen with "Out of Range" window in red. I have used all the monitor settings in both the "settings" and in winecfg. None of the eight monitor options worked in any combination. I have checked all the questions and blogs on this error and tried all I found and no one seems to come up with a real fix. I guess I need to know exactly what the "Out of Range" means. Any help? Anywhere? Thanks

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• Problem inserting pre-ordered values to quadtree

  - by Lucas Corrêa Feijó

  There's this string containing B, W and G (standing for black, white and gray). It defines the pre-ordered path of the quadtree I want to build. I wrote this method for filling the QuadTree class I also wrote but it doesn't work, it inserts correctly until it reaches a point in the algorithm it needs to "return". I use math quadrants convention order for insertion, such as northeast, northwest, southwest and southeast. A quadtree has all it's leafs black or white and all the other nodes gray The node used in the tree is called Node4T and has a char as data and 4 references to other nodes like itself, called, respectively NE, NW, SW, SE. public void insert(char val) { if(root==null) { root = new Node4T(val); } else { insert(root, val); } } public void insert(Node4T n, char c) { if(n.data=='G') // possible to insert { if(n.NE==null) { n.NE = new Node4T(c); return; } else { insert(n.NE,c); } if(n.NW==null) { n.NW = new Node4T(c); return; } else { insert(n.NW,c); } if(n.SW==null) { n.SW = new Node4T(c); return; } else { insert(n.SW,c); } if(n.SE==null) { n.SE = new Node4T(c); return; } else { insert(n.SE,c); } } else // impossible to insert { } } The input "GWGGWBWBGBWBWGWBWBWGGWBWBWGWBWBGBWBWGWWWB" is given a char at a time to the insert method and then the print method is called, pre-ordered, and the result is "GWGGWBWBWBWGWBWBW". How do I make it import the string correctly? Ignore the string reading process, suppose the method is called and it has to do it's job.

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• How do install Ubuntu from a USB stick?

  - by Sophia

  When I go to the boot menu on my computer and select USB stick, the screen goes black and there comes a flickering underline. Like I could write something. But I can't. Whatever I push, nothing happens. Except the PrintScrn/SysRq button. When I push it, mu computer beeps. I get no choose menu. Nothing. I found out the usb stick is in msdos format. So what format should I use and how can I format it? I am not a computer geek who knows everything. I'm just a beginner. And only 16 years old. I've got a new problem. The screen isn't black anymore. Now there comes an error message: SYSLINUX 4.04 CHS 20110518 Copyright (C) 1994-2011 H.Peter Anvin et al ERROR:No configurationfile found No DEFAULT or UI configuration directive found! boot: And when I write something: boot:example Could not find kernel image:example boot: Why does this fail all the time? ps. I'm using Ubuntu Oneiric 11.10.

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• Moviebarcodes Showcases Entire Movies as Frame-based Barcodes

  - by Jason Fitzpatrick

  If you’ve ever wanted a chance to look at at an entire movie in a single glance, here’s your chance. Moviebarcodes shares mock-barcodes generated by turning each frame of a movie into a thin stripe, offering a glimpse into the color choices and shot lengths in popular movies. The barcode seen above was generated from The Matrix; you can see where the green indicates scenes that were shot inside the matrix and thus given a subtle green tint. In the barcode below, generated from the movie Pleasantville you can see the transition in the movie between the color and black and white scenes. In the case of Pleasantville, elements of the black and white world turning to color represent pivotal moments in the plot development which are now neatly mapped out below: Check out the hundreds of barcodes at the link below; you can even order prints of your favorite movies. Find a great rendering in the mix? Share a link in the comments below. Moviebarcodes [via Cool Inforgraphics] How to Create an Easy Pixel Art Avatar in Photoshop or GIMPInternet Explorer 9 Released: Here’s What You Need To KnowHTG Explains: How Does Email Work?

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• DIY Halloween Decoration Uses Simple Silohuettes

  - by Jason Fitzpatrick

  While many of the Halloween decorating tricks we’ve shared over the years involve lots of wire, LEDs, and electronic guts, this one is thoroughly analog (and easy to put together). A simple set of silhouettes can cheaply and quickly transform the front of your house. Courtesy of Matt over at GeekDad, the transformation is easy to pull off. He explains: It’s really just about as simple as you could hope for. The materials needed are: black posterboard or black-painted cardboard; colored cellophane or tissue paper; and tape. The only tools needed are: measuring tape; some sort of drawing implement — chalk works really well; and scissors and/or X-Acto knife. And while you need some drawing talent, the scale is big enough and the need for precision little enough that you don’t need that much. For a more thorough rundown of the steps hit up the link below or hit up Google Images to find some monster silhouette inspiration. Window Monsters [Geek Dad] How Hackers Can Disguise Malicious Programs With Fake File Extensions Can Dust Actually Damage My Computer? What To Do If You Get a Virus on Your Computer

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• Moving 2d camera in the y direction

  - by Alex

  I'm developing a simple game for the iphone and am struggling to work out the best way for the camera to follow the main character. The following picture hightlights the three main components: There are 3 components to this: Circle - the main character Green line - terrain Black background The terrain is simply made from an array of points (approx 20 points per screen width). The terrain is moved in the x direction relative to the black background in order to keep the circle in its position shown. The distance to move the terrain is simply: movex = circle.position.x - terrain.position.x with a constant to fix the circle at some distance from the left of the screen. I am struggling to determine the best way to position the terrain in the y plane keep the focus in the character. I want to move the terrain in the y direction smoothly and not fix it to the position of the circle, so the circle can move in the y plane. If I take the same approach as the x positioning, the character is fixed at a point on the screen and the terrain moves. I could sample some terrain points either side of the character and produce an average, but in my implementation this was not smooth. I thought another approach might be to create a camera 'line' that is a smooth version of the terrain line and make the camerea follow this, but I'm not sure if this is the optimum solution. Any advice is much appreciated!

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• Hard time installing Ubuntu

  - by Nick

  I have a MSI GT780DXR that currently is booting windows 7. I've been trying to dual boot windows 7 and ubuntu for some time now. Here's specs that I think would make a difference Windows 7 500GB*2 RAID 0 hard drives. (Hardware RAID I'm not sure if it's a dedicated RAID card though) 7200RPM Nvidia GT570M Background: I tried to install 12.04 (64 bit) a few times but the Desktop live cd and pendrive boots with a black screen. I've tried wubi but it boots to a black screen as well. I then tried the alternative 12.04 (64 bit) and went through the installation all the way til partitioning. I let Ubuntu notice the raid setup and I setup my swap, /, and home drives, I used my free space to create the three partitions. I tried to resize the windows drive and it told me I couldn't and to be happy with my current setup. When I finally got past I got an error on installing GRUB 2 and decided to skip it and continued on to finish installation. When I tried to boot up I got an invalid partition table error. Windows recovery disc, and a GPARTED live cd couldn't find any hard drives. I ended up following advice and typed this into the recovery command prompt. bootrec /fixmbr bootrec /fixboot bootrec /rebuildBcd It worked and here I am now. The question is, how would I be able to dual boot windows 7 and Ubuntu 12.04 with this information? Thanks,

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• Disabling monitor reconfiguration when closing lid

  - by Tomas

  I often need to move my laptop from one working place to another. When I do this, there are two events Ubuntu responds to by changing the monitor set up: Removing/attaching the VGA cable Closing/opening the lid of the laptop While removing the VGA cable gives me what I need (single screen, highest native resolution on the external screen if connected; otherwise highest resolution on the laptop), the laptop close/open lid response is not as good. Every time I close or open the lid, Ubuntu reconfigures the monitor set up. When I close the lid now... the screen goes black for a few seconds and it switches to clone, with my laptop screen disabled. Reopening results in... briefly a black screen, then the external monitor being used as desktop extension. Ubuntu thinks too much. My first and foremost question: Is there any way to let Ubuntu ignore lid close events? Ideally (or when there's no way to solve above question) I'd want to change how it deals with the screen reconfiguration. Why does Ubuntu toggle the screen configuration between external, clone and single display? Can't I just configure it to always use the external monitor, when present, in single screen mode? Note that similar questions have been asked before (most notably this one), but these have been closed perhaps wrongly. Any ideas are very welcome, I don't mind playing around a bit to see if something works.

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• How do I fix broken installation?

  - by Daniel

  Let me start off by saying I'm dual booting 11.04 and Windows 7 on a Thinkpad T61p. The problem may have arisen when I hit the power button during normal startup. I'm fully aware how stupid this is. I don't know why I did it. I did it. Now, I can't get in to Ubuntu. Windows works fine. But when I try to start Ubuntu normally, it seems to run some checks, and does not start up. Sometimes, I see a black screen, and it tells me that it's running certain checks, and then, [ok]. Like... Battery Check Somethingorother [ok] It'll give me 1-5 of these. And then it just does nothing, and I have to turn it off. When I try to start in safe mode... I tried low graphics mode, and after going through a couple of dialogue boxes, I'm brought right back to the safe mode dialogue box. And if I hit 'resume,' a shell pushes up (still that grey on black "your computer is broken" type shell) and asks me to log in. I do, and try to run unity. It tells me something along the lines of: WARNING no DISPLAY variable set and then sets it to " :0" , which doesn't work. And then I can't do anything, really, and I have to restart. (I don't know how to do this from the command line, so I just hard reset. That command would be helpful). Does anybody have any idea how I can get Ubuntu working right again? FTP is less pleasant in Explorer than it is in Nautilus or w/e it is now.

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• Can T520+Bumblebee run an external monitor via DisplayPort?

  - by Fen

  Using 64-bit Ubuntu 11.10 and integrated (Intel) graphics, I can run the 1600x900 laptop display plus a 1600x1200 external monitor connected to the VGA adapter. But my external monitor is 1920x1200 so I have black stripes on each side. I believe the resolution is limited like this as the maximum resolution available from the Intel GPU is 2560x1600 = 4,096,000 pixels and I'm asking for a 3520x1200 = 4,224,000 display (with 1200x300 lost above the laptop screen). At 3200x1200 = 3,840,000 pixels, the Intel GPU seems happy. Under Windows, the same limit exists when using the VGA adapter, but if I turn Optimus on then I can connect the external monitor to the DisplayPort and get its full resolution and an extended desktop. I've seen that Bumblebee can run apps on the DisplayPort using the 'optirun' command. My question is: can Bumblebee run the DisplayPort in concert with the Intel card running the laptop screen creating a large virtual desktop (as on Windows)? If so, are there any pointers to how to do this? I tried once, failed, and dropped back to Integrated Graphics (and black stripes) as I could find no reports of this configuration working.

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• How do I restore default menu/top panel text color in Gnome Classic?

  - by Kobby

  The default text/icon color in my top panel has changed from white to a very dark grey, making my menus virtually unreadable against the black of the Ambiance theme. This includes even the login screen menu. I used Gnome Tweak to change the theme to Adwaita, but while some text has gone light grey (e.g. Date/Time), the login menu text remains dark grey, as do most icons (e.g. dropbox, wireless, battery indicator...) in the top panel after I log in. I tried deleting the top panel altogether but the option of deleting under Super + Alt + Right Click is blocked off. I tried running a panel from the terminal, but it came up in strange colors too, plus icons had moved around and some parts of the panel were opaque and other parts transparent. Deleting the panel wouldn't solve the basic problem anyway, as my login menu would still be very dark grey and unreadable against the default (black) Ambiance background. I would like to keep Ambiance but I want to reset the color to default (white) again. Can anyone help me?

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• HP G42 Ubuntu live cd failure

  - by Jon

  Ok, I have tried every option under the sun. I have surfed through the internet for a good 3 hours straight and to no effect. I installed ubuntu on my HP G42 laptop, it worked fine, then when I tried installing the standard after installation updates my wifi failed. In my attempt to fix my wi-fi I rebooted my laptop, when I rebooted I was stuck on a black screen with nothing that I tried to fix it helping the situation. So I then tried to fix it by reinstalling Ubuntu. When I attempted to boot into the live ccd it failed leaving with the now familar black screen. After numerous attempts using instructions from live cd and instal failure blank screen... page and replacing my hard drive at a cost of $65 I am coming here for help. As for the actual DVD that I tried installing ubuntu from it was able to install ubuntu on a mac just fine after my issues on the HP. After installing the hard drive I loaded up windows just fine but I don't want windows I want ubuntu, can you please provide instructions on how to install ubuntu?

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• Problems after installing a plethora of updates

  - by box

  yesterday I decided to install 32-bit Ubuntu on my 64-bit desktop, first of all, is that a problem? After installing, i had around 270 updates to install, according to the update manager. I was having trouble launching a game with WINE, so I thought updating might help. After updating, I restarted my computer, and after a long while it showed me my desktop and the icon's on it, but I didn't get anything else. I didn't have the "taskbar" (not sure what it's called, sue me) on the left side, nor the bar at the top. I also received an error message saying some program had stopped working. I decided to restart my computer again, and that was when it told me that i have to re-configure my drivers, or run in "Low Graphics" mode for one session, amongst other options. Well, I decided to try to revert to the "basic video drivers", which was an option it gave. Restarting the computer gave me the same problem as in the second paragraph. After a few more restarts and a night of restless sleep, here I am trying to start my computer again, only to receive a black screen, and my monitor "going to sleep". I'm sort of stumped here, being new to Ubuntu (desktop, at least) and I really hope this gets fixed without me having to install Ubuntu on yet another partition (I have three other partitions for various things already) tl;dr: Black screen on boot after installing updates.

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• When running Minecraft with OpenJDK, my keyboard becomes unresponsive?

  - by Mochan

  I recently downloaded Minecraft with the .jar format and had it running on my computer not so long ago. Now that I'm using my desktop instead of laptop temporarily, I want it to run. On my laptop it was a tremendous hassle to get OpenJDK to even run the application without it going black and I don't have that problem on my desktop. However, when I run the application on desktop, my keyboard becomes unresponsive and doesn't type at all. This is a really big problem because I can't play the game as it requires keyboard interaction. It works as normal on my laptop though and it works perfectly. But now on the desktop it's completely useless. I don't know if there's like a keyboard driver I'm missing, but there shouldn't be because the keyboard runs flawlessly everywhere else. I'm using OpenJDK 6 because the 7 has the same 'black screen' I mentioned. So I need this to work within OpenJDK 6. Thanks so much in advance and I'll try to specify as many details as I can.

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