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  • Can I boot up a virtual machine natively?

    - by Anshul
    My question is: Is is possible to run a virtual machine natively on your hardware if you have installed the proper drivers etc? In other words, can I use a VHD as a regular hard drive to boot from? The reason I want to do this is that I do both graphics-intensive and audio-intensive work, but my computer is not powerful enough to handle both at the same time and many times I install a bunch of audio programs that I don't want affecting the stability of my graphics programs. Basically I wanted to have sandboxing between the two sets of applications. So I tried running the graphics-intensive programs in a VirtualBox VM and the audio-intensive work natively (simply because it's a pain to route ASIO audio devices in/out of VirtualBox). This kind-of works - the graphics-intensive stuff is tolerable, but still relatively slow, because it's running inside a VM. So my next idea was to just dual-boot and install the graphics and audio programs in separate partitions but I frequently use them in tandem, so it wouldn't be practical to reboot my machine every time I need to use the other set of programs. But I could live with this scenario: If I need to do more audio-intensive stuff, I'll just boot up to the audio partition and run the graphics programs in a VM, and then when I'm working heavily on the graphics part, I'll just boot the graphics partition as a regular OS directly on the hardware. Is this possible? For example by booting up a VHD as a regular hard drive? Or by setting up dual-boot, and every time the audio partition is shut down, synchronize the graphics VM VHD with the native graphics partition? Is it practical, given the above scenario? And if it's not possible, barring buying another computer, can anyone suggest a best-of-all-worlds setup (the two worlds being performance, sandboxing, and running in parallel) for the above scenario? Thanks in advance.

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  • Mirroring a portion of the screen to an external display (in OSX)

    - by Adam
    I would like to write a program that can mirror a portion of the main display into a new window. Ideally this new window could then be displayed on an external monitor. I have seen this uiltity for a flightsim that does this on a pc (a multifunction display extractor). MFDex http://trac2.assembla.com/lightnings..._x86_Setup.msi I have looked at screen magnifiers or vnc clients for ideas but I think I need to write something from scratch. I have tried to do some reading on osx programing but where do I start in terms of gaining access to the display? I somehow need to extract the graphics from a particular program. Is it best to go near the final output stage (the individual pixels sent to the display) or somewhere nearer the window management stage. Any ideas or pointers would be much appreciated. I just need somewhere to start from. Regards,

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  • Programming graphics and sound on PC - Total newbie questions, and lots of them!

    - by Russel
    Hello, This isn't exactly specifically a programming question (or is it?) but I was wondering: How are graphics and sound processed from code and output by the PC? My guess for graphics: There is some reserved memory space somewhere that holds exactly enough room for a frame of graphics output for your monitor. IE: 800 x 600, 24 bit color mode == 800x600x3 = ~1.4MB memory space Between each refresh, the program writes video data to this space. This action is completed before the monitor refresh. Assume a simple 2D game: the graphics data is stored in machine code as many bytes representing color values. Depending on what the program(s) being run instruct the PC, the processor reads the appropriate data and writes it to the memory space. When it is time for the monitor to refresh, it reads from each memory space byte-for-byte and activates hardware depending on those values for each color element of each pixel. All of this of course happens crazy-fast, and repeats x times a second, x being the monitor's refresh rate. I've simplified my own likely-incorrect explanation by avoiding talk of double buffering, etc Here are my questions: a) How close is the above guess (the three steps)? b) How could one incorporate graphics in pure C++ code? I assume the practical thing that everyone does is use a graphics library (SDL, OpenGL, etc), but, for example, how do these libraries accomplish what they do? Would manual inclusion of graphics in pure C++ code (say, a 2D spite) involve creating a two-dimensional array of bit values (or three dimensional to include multiple RGB values per pixel)? Is this how it would be done waaay back in the day? c) Also, continuing from above, do libraries such as SDL etc that use bitmaps actual just build the bitmap/etc files into machine code of the executable and use them as though they were build in the same matter mentioned in question b above? d) In my hypothetical step 3 above, is there any registers involved? Like, could you write some byte value to some register to output a single color of one byte on the screen? Or is it purely dedicated memory space (=RAM) + hardware interaction? e) Finally, how is all of this done for sound? (I have no idea :) )

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  • MyPaint is an Open-Source Graphics App for Digital Painters

    - by Asian Angel
    Are you looking for a terrific graphics app to use for original painting and artwork creation on your computer? Whether it is for you or the kids, MyPaint is an app that you should definitely have on hand for when those artistic moods come along. For our example we chose to install MyPaint on Ubuntu 10.10…you can easily find it in the Ubuntu Software Center by doing a quick search. Once you have it installed, all that is left to do is decide if you want to add additional brushes (link provided below) and then start having fun creating your next work of art. Here are some of MyPaint’s wonderful features: Exists for several platforms (Linux, Windows, and Mac OS X) Supports pressure sensitive graphics tablets Extensive brush creation and configuration options Unlimited canvas (you never have to resize) Basic layer support Comes with a large brush collection including charcoal and ink to emulate real media MyPaint is fun to use and can quickly become very addicting as you experiment during the creation process! Links MyPaint Homepage Download Additional Brushes for MyPaint Download the GIMP Plugin for the OpenRaster File Format Latest Features How-To Geek ETC Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware How to Change the Default Application for Android Tasks Stop Believing TV’s Lies: The Real Truth About "Enhancing" Images The How-To Geek Valentine’s Day Gift Guide Inspire Geek Love with These Hilarious Geek Valentines MyPaint is an Open-Source Graphics App for Digital Painters Can the Birds and Pigs Really Be Friends in the End? [Angry Birds Video] Add the 2D Version of the New Unity Interface to Ubuntu 10.10 and 11.04 MightyMintyBoost Is a 3-in-1 Gadget Charger Watson Ties Against Human Jeopardy Opponents Peaceful Tropical Cavern Wallpaper

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  • Rendering UIImage/CGImage into CGPDFContext results in... blankness!

    - by quixoto
    Hi all, I'm trying to take an image that I have in a image object and render into a Core Graphics PDF context-- happens to be on an iPhone but this question surely applies equally to desktop Quartz. This UIImage is a simple color-on-white image at about 600x800 resolution. If I (say) turn it into a PNG file, that file looks exactly as expected-- so the data is OK. Here's what I'm doing to generate the PDF: NSMutableData * outputData = [[NSMutableData alloc] init]; CGDataConsumerRef dataConsumer = CGDataConsumerCreateWithCFData((CFMutableDataRef)outputData); CFMutableDictionaryRef attrDictionary = NULL; attrDictionary = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); CFDictionarySetValue(attrDictionary, kCGPDFContextTitle, @"My Awesome Document"); CGContextRef pdfContext = CGPDFContextCreate(dataConsumer, NULL, attrDictionary); CFRelease(dataConsumer); CFRelease(attrDictionary); CGImageRef pageImage = [myUIImage CGImage]; CGPDFContextBeginPage(pdfContext, NULL); CGContextDrawImage(pdfContext, CGRectMake(0, 0, [myUIImage size].width, [myUIImage size].height), pageImage); CGPDFContextEndPage(pdfContext); CGContextRelease(pdfContext); Resulting PDF, which ends up in outputData, seems like a valid PDF file (opens correctly, document title is present in metadata), but it consists of precisely one blank page. What am I doing wrong? Thanks.

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  • How to systematically generate images from data?

    - by adamvickers
    I work for a performing arts nonprofit. We have seating charts for each of the theaters we work with; each seating chart shows the number of sections, the shape of each section, and the number of rows in each section. We'd like to create dynamic seating charts based on this info. We'd like them to look/feel kinda like this: http://www.fansnap.com/tickets/177754-on. But the tricky part is we'd like to be able to store all the info about each theater (the section names, shape/size of each section, and number of rows in each section) as data and then build a system that reads this data and uses it to create a dynamic map. I'm a life-long web developer, but I don't have have any experience with a difficult graphics problem like this. I realize it's a complex problem and I don't expect anyone to give me a complete answer here, but I would love direction on where I should be looking for more info. Is what I'm describing possible? Does this sort of technique have a name? Where can I learn more about how to accomplish this? What software should I use? Any info would be helpful.

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  • Motherboard warning lights when plugging in a display port cord to graphics card?

    - by rllr
    Earlier today, my computer spontaneously shut itself off and refused to turn back on. I tested my PSU and it's operating fine. I unplugged everything and let it sit for a while and it started to make a high pitched coil whine/hiss. When I came back an hour later and plugged in only the power cord, it turned on without any issues. After some troubleshooting, I noticed my motherboard (Intel D975XBX2) has a red CPU led and VR led that come on whenever I plug my monitor into my graphics card via display port. DVI does not cause a similar issue. I was running three monitors off the card, so I need both DVI ports and the display port working. Is it likely my graphics card needs to be replaced, or should I be looking elsewhere to resolve this issue?

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  • Low end dedicated GPU vs. integrated Intel graphics (for light CAD work)

    - by PaulJ
    I have been asked to spec a PC for an interior design business. They are going to do some AutoCAD work (but they won't be using massive datasets or anything), and also use Kitchen Draw, a program that has 3D visualization features and says, in its requirements, that "a recent NVidia or ATI card might be enough". Since they are very limited budget-wise, I had originally picked a GeForce GT 610 card, but this card is so low end that I'm left wondering whether it will be an improvement at all over the dedicated Intel HD2500 graphics chip that comes with the CPU (I will be using an Ivy-Bridge Intel i5). Most of the information I see around is for gaming, which isn't really relevant in my case. Basically, for the use case I've described (light 3D work), can one get away with a current Intel HD graphics chipset? And will a low end GPU like the GT 610 provide a noticeable improvement?

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  • Display with intel integrated graphics, bitcoin mine with Radeon 6950

    - by karategeek6
    I'm on Ubuntu Linux 11.04 64 bit. I have an intel i5 with integrated graphics and a Radeon 6950, with one monitor. I would like to run my graphics on the integrated card, and run bitcoin mining on the 6950. I have bitcoin mining working when I use the 6950 for both display and mining. Every time I try and and use the integrated graphics instead, OpenCL doesn't recognize my 6950. Using aticonfig --initial when using the integrated graphics for display breaks things. So I used the xorg.conf it created as a basis and tried to manually edit it. I really don't know what I'm doing, though. My last attempt is given below. The graphics ran off the integrated card, but the 6950 wasn't recognized. Any help would be greatly appreciated! xorg.conf: #Section "ServerLayout" # Identifier "Intel Layout" # Screen "Default Screen" # Identifier "aticonfig Layout" # Screen "aticonfig-Screen[0]-0" # Screen 0 "aticonfig-Screen[0]-0" 0 0 #EndSection Section "Module" Load "glx" EndSection # Intel Section "Device" Identifier "Intel Integrated Graphics" Driver "intel" BusID "PCI:0:2:0" EndSection Section "Monitor" Identifier "Default Monitor" Option "VendorName" "Monitor Vendor" Option "ModelName" "Monitor Name" Option "DPMS" "true" EndSection Section "Screen" Identifier "Default Screen" Device "Intel Integrated Graphics" Monitor "Default Monitor" DefaultDepth 24 EndSection # ATI Section "Device" Identifier "aticonfig-Device[0]-0" Driver "fglrx" BusID "PCI:1:0:0" EndSection Section "Monitor" Identifier "aticonfig-Monitor[0]-0" Option "VendorName" "ATI Proprietary Driver" Option "ModelName" "Generic Autodetecting Monitor" Option "DPMS" "true" EndSection Section "Screen" Identifier "aticonfig-Screen[0]-0" Device "aticonfig-Device[0]-0" Monitor "aticonfig-Monitor[0]-0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection

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  • dual-boot (win-xp/ubu12.04) graphics card for ubu-desktop/win-xp-games

    - by iole1
    for work I need to get a a new and cheap graphics card for a dual boot machine: windows xp/ubuntu 12.04 LTS. The only requirements I have are: it should work 'flawlessly' in ubuntu (proprietary drivers are ok) it should handle Guild Wars 2 & League of Legends in windows xp (this is really the top priority as we need to be able to play at work :) - yes I have a cool job) I know nothing about graphics cards (and it seems to be a jungle out there). From other questions here and some webstigation I think I'd like to go for a Nvidia card, I've been trying to figure out what models fit the system req's but it seems they use different kind of model numbers so I don't get any wiser. tl;dr: will http://www.geforce.co.uk/hardware/desktop-gpus/geforce-gt-620-oem/specifications run Guild Wars 2 http://gamesystemrequirements.com/games.php?id=938 Or what is the worst card from nVidia that will run GW2 smoothly and work well in Ubuntu 12.04 Thanks!

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  • XNA - Drawing 2D Primitives (Boxes) and Understanding Matrices in Computer Graphics

    - by MintyAnt
    I have two issues which I wish to solve by creating 2D primitives in XNA. In my game, I wish to have a "debug mode" which will draw a red box around all hitboxes in the game (Red outline, transparent inside). This would allow us to see where the hitboxes are being drawn AND still have the sprite graphics being drawn. I wish to further understand how matrices work within computer graphics. I have a basic theoretical grasp of how they work, but I really just want to apply some of my knowledge or find a good tutorial on it. To do this, I wish to draw my own 2D primitives (With Vertex3's) and apply different transormation matrices to them. I was trying to find a tutorial on drawing primitives using Direct3D, but most tutorials are only for c++, and just tell me to use XNA's Spritebatch. I wish to have more control over my program than just with Spritebatch. Any Help on using Direct3D or any other suggestions would greatly be appreciated. Thank you.

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  • Qt Graphics et performances - le coût des commodités, un article de Gunnar traduit par Guillaume Belz

    Le 11 décembre 2009, la documentation de QPainter subissait un énorme ajout concernant l'optimisation de son utilisation. En effet, le bon usage de cet outil n'était pas accessible à tous, il n'était pas présenté dans la documentation. Ceci ne fut qu'un prétexte à une série d'articles sur l'optimisation de QPainter et de Qt Graphics en général. Voici donc le premier article de cette série, les autres sont en préparation : Qt Graphics et performances : ce qui est critique et ce qui ne l'est pas Pensez-vous que cet ajout à la documentation de QPainter sera utile ? Trouvez-vous les performances de vos applications trop faibles ?...

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  • how to enable opengl 2.0 and webgl on gma 3150 ?

    - by mahmoudelbadry
    hi, i have a dell mini 1012 which has an intel n450 processor and gma 3150 integrated graphics card running ubuntu 10.10 according to the intel website the graphics card support opengl 2.0 http://software.intel.com/en-us/articles/quick-reference-guide-to-intel-integrated-graphics/#9 but when i type glxinfo in terminal the opengl version string gives me the following OpenGL version string: 1.4 Mesa 7.9-devel i installed the latest drivers but it didn't work. so, how can i enable opengl 2.0 on this card?? thanks

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  • Graphic issue on intel945 chipset

    - by peeyush tiwari
    I used Intrepid(8.10) and my graphics used to work fine with compiz effects and all(on better resolution than 1024x768).Now I have upgraded to Precise(12.04)but I use gnome classic(with compiz effects)as my desktop but the compiz effects seem not to work, only unity 2D works. When I ran lshw -c video it gives: *-display UNCLAIMED description: VGA compatible controller product: 82945G/GZ Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 02 width: 32 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list configuration: latency=0 resources: memory:fea80000-feafffff ioport:dc00(size=8) memory:e0000000-efffffff memory:fea40000-fea7ffff Sysinfo shows: Display Resolution 1024x768 pixels OpenGL Renderer Gallium 0.4 on llvmpipe(LLVM 0x300) X11 Vendor The X.Org Foundation On SystemSettings: Memory 993.3 MiB Processor Intel® Pentium(R) 4 CPU 2.40GHz Graphics VESA: Intel(r) 82945G Chipset Family Graphics OS type 32-bit glxgears output comes to be around 100fps which used to be around 900fps in Intrepid

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  • Dual monitor setup with Intel graphics and Nvidia Geforce GT 425M on 12.04

    - by fo_x86
    I have a Dell XPS L401x and just installed 12.04. I have a mini-display and an HDMI output, and I could hook up two Dell UltraSharp monitors to each port on Windows 7, and get a triple monitor setup. Doing a bit of research, it seems like the mini-display is wired to the integrated graphics card whereas HDMI is hooked up to Nvidia graphics card. I've also installed Bumblebee as it seemed like that was the proper way of installing Nvidia drivers on Ubuntu. At the moment none of my monitors is being recognized by Ubuntu. Is it even possible to have a triple monitor (laptop display + 2 external) setup? Has anyone successfully done this?

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  • Desktop goes blurry / granulated

    - by Bonfire
    After few minutes using, desktop and fonts in unity-menu goes blurry. See screenshot.! In all applications (browser etc.) graphics seem to be allright. After rebooting problem disappears for few minutes. Changing the wallpaper also makes the desktop clear (for a while) but fonts are still blurry. I have ubuntu 12.04 and windows xp dualbooted. lspci: 00:00.0 Host bridge: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub (rev 02) 00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02) 00:02.1 Display controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02) lshw -c video: *-display:0 description: VGA compatible controller product: 82945G/GZ Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 02 width: 32 bits clock: 33MHz capabilities: vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:16 memory:d0100000-d017ffff ioport:30c0(size=8) memory:c0000000-cfffffff memory:d0180000-d01bffff *-display:1 UNCLAIMED description: Display controller product: 82945G/GZ Integrated Graphics Controller vendor: Intel Corporation physical id: 2.1 bus info: pci@0000:00:02.1 version: 02 width: 32 bits clock: 33MHz capabilities: cap_list configuration: latency=0 resources: memory:40000000-4007ffff Have you got any ideas to get this solved? Thank you very much! Bonfire

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  • Trouble with 12.10 lag

    - by Brennan
    Well basicly lately I have been having lag problems with 12.10. I will post my specs, but before the update to 12.10, it said that I had intel graphics. Now it says I have Gallium. My specs: *Memory: 3.9 GiB *Processor: Pentium(R) Dual-Core CPU E5500 @ 2.80GHz × 2 *Graphics: Gallium 0.4 on llvmpipe (LLVM 3.2, 128 bits) (used to say intel graphics) *OS Type: 32-bit *Disk: 486.1 GB The output of the command sudo apt-cache check is this: E: Invalid operation check The output of the command sudo lspci -nnk | grep -A5 VGA is this: 00:02.0 VGA compatible controller [0300]: Intel Corporation 4 Series Chipset Integrated Graphics Controller [8086:2e32] (rev 03) Subsystem: ASUSTeK Computer Inc. Device [1043:836d] Kernel driver in use: i915 00:1b.0 Audio device [0403]: Intel Corporation NM10/ICH7 Family High Definition Audio Controller [8086:27d8] (rev 01) Subsystem: ASUSTeK Computer Inc. Device [1043:8445] Kernel driver in use: snd_hda_intel

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  • Can emsripten compile down to Canvas-based Js instead of WebGL?

    - by Sebastian Scholle
    I understand that emscripten compiles down LLVM to JS and it converts OpenGL Calls to WebGL. Thats a fairly simple translation. Is there a way to tell emscripten to use some other graphics Library ( for example Pixi JS ) for its rendering code translations? Is the compiled JS code easy to update or would it be better to merge in your own Graphics API that handles WebGL/Canvas calls. IE: can we use a C++ Graphics Wrapper Library that when compiles to JS, will simply plug into our own JS Graphics Wrapper Library? Im assuming YES, but has anyone tried this? And if So, what would be your technique, as my C++ skills are basic.

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  • How do I disable a Nvidia 9600GT on MacBookPro 5.1?

    - by Gjan
    i finally put up a Dual Boot with Ubuntu and Lion on my old MacBookPro 5.1 As reported in many cases the discrete graphics card is turned on all the time consuming a lot of power and thus heating up the laptop. Since the discrete graphics card does not support the nvidia optimus technology, the corresponding packge nvidia-prime does not help in this case. Therefore my question is, how to manually disable the discrete graphics card Nvdidia 9600GT ? Preferably a 'switch-on-the-run' version, but a 'set-on-boot' would be totally fine!

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  • Unable to install cedarview-graphics-drivers

    - by antnchv
    $ sudo apt-get install cedarview-graphics-drivers Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: cedarview-graphics-drivers : Depends: xserver-xorg-core (= 2:1.10.99.901) Depends: xorg-video-abi-11 E: Unable to correct problems, you have held broken packages. Please advice.

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