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• MAC OS for Intel based PCs

  - by Maven

  I have an Intel dual core PC with 4GB of RAM and Graphics card. For on of my student Assignment I need to install Latest possible MAC OS on my system as a secondary OS. Like on boot it asks me that which OS i want to boot with Win 8.1 or Mac Os.. I searched on the internet and found two conflicting opinion some people said there are few MAC OS Version which can be directly installed on Intel PCs some says there aren't? I am here to get rid of the confusion that is an official latest possible MAC OS version for Intel based PCs? If not what are my options if I want to run MAC OS on my PC. Please not that Virtualization options won’t work for me, it has to be working as full OS not an os inside another.

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• Wrong PC-projector resolution in Windows 7

  - by peter.olsson

  I'm connecting a PC-projector (Benq MP721) to a Windows 7 Professional laptop (HP 6730b). All the output settings on the laptop, including the laptop screen, changes to 1024x768 (which the projector supports). However the projector says it receives 1360x768 and asks me to change the resolution to 1024x768. I'm using mirrored display. The laptop is 1024x768 The screen resolution in the control panel says 1024x768 The Intel graphics card utilities says 1024x768 The driver for the projector is a Generic PnP Monitor Is there anything in Windows 7 that would convert my 4:3 resolution to wide screen automatically?

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• Is there an easy way to get a list of all successful captures from a regex pre-5.10?

  - by Chas. Owens

  I know the right way to do this if I have Perl 5.10 is to use named captures and values %+, but in Perl 5.8.9 and how can I get a list of successful captures? I have come up with two methods that are both just terrible: #you need to list each possible match my @captures = grep { defined } ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16); and #ew, I turned on symbolic references { no strict 'refs'; my @captures = map { defined $+[$_] ? $$_ : () } 1 .. $#+; } There is a third option I have found involving (?{}), but it requires global variables (because the closure happens at compile time) and takes the regex from reasonably clear to ungodly mess. The only alternative I have found is to capture the whole match and then use another set of regexes to get the values I want (actually I build the first regex out of the other regexes because there is no good reason to duplicate the logic).

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• Can unexpected power loss harm a Linux install?

  - by Johan Elmander

  I am developing an application on a Linux embedded board (runs Debian) e.g. Raspberry Pi, Beagle Board/Bone, or olimex. The boards works on an environment that the electricity is cut unexpectedly (it is far complicated to place PSU, etc.) and it would happen every day couple times. I wonder if the unexpected power cuts would cause crash/problem on the Linux Operation System? If it is something that I should worry, what would you suggest to prevent the damages on OS against the unexpected power cuts? PS. The application needs to writes some data to the storage medium (SD card), I think it would not be suitable to mount it as read-only.

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• Disable antialiasing for a specific GDI device context

  - by Jacob Stanley

  I'm using a third party library to render an image to a GDI DC and I need to ensure that any text is rendered without any smoothing/antialiasing so that I can convert the image to a predefined palette with indexed colors. The third party library i'm using for rendering doesn't support this and just renders text as per the current windows settings for font rendering. They've also said that it's unlikely they'll add the ability to switch anti-aliasing off any time soon. The best work around I've found so far is to call the third party library in this way (error handling and prior settings checks ommitted for brevity): private static void SetFontSmoothing(bool enabled) { int pv = 0; SystemParametersInfo(Spi.SetFontSmoothing, enabled ? 1 : 0, ref pv, Spif.None); } // snip Graphics graphics = Graphics.FromImage(bitmap) IntPtr deviceContext = graphics.GetHdc(); SetFontSmoothing(false); thirdPartyComponent.Render(deviceContext); SetFontSmoothing(true); This obviously has a horrible effect on the operating system, other applications flicker from cleartype enabled to disabled and back every time I render the image. So the question is, does anyone know how I can alter the font rendering settings for a specific DC? Even if I could just make the changes process or thread specific instead of affecting the whole operating system, that would be a big step forward! (That would give me the option of farming this rendering out to a separate process- the results are written to disk after rendering anyway) EDIT: I'd like to add that I don't mind if the solution is more complex than just a few API calls. I'd even be happy with a solution that involved hooking system dlls if it was only about a days work. EDIT: Background Information The third-party library renders using a palette of about 70 colors. After the image (which is actually a map tile) is rendered to the DC, I convert each pixel from it's 32-bit color back to it's palette index and store the result as an 8bpp greyscale image. This is uploaded to the video card as a texture. During rendering, I re-apply the palette (also stored as a texture) with a pixel shader executing on the video card. This allows me to switch and fade between different palettes instantaneously instead of needing to regenerate all the required tiles. It takes between 10-60 seconds to generate and upload all the tiles for a typical view of the world. EDIT: Renamed GraphicsDevice to Graphics The class GraphicsDevice in the previous version of this question is actually System.Drawing.Graphics. I had renamed it (using GraphicsDevice = ...) because the code in question is in the namespace MyCompany.Graphics and the compiler wasn't able resolve it properly. EDIT: Success! I even managed to port the PatchIat function below to C# with the help of Marshal.GetFunctionPointerForDelegate. The .NET interop team really did a fantastic job! I'm now using the following syntax, where Patch is an extension method on System.Diagnostics.ProcessModule: module.Patch( "Gdi32.dll", "CreateFontIndirectA", (CreateFontIndirectA original) => font => { font->lfQuality = NONANTIALIASED_QUALITY; return original(font); }); private unsafe delegate IntPtr CreateFontIndirectA(LOGFONTA* lplf); private const int NONANTIALIASED_QUALITY = 3; [StructLayout(LayoutKind.Sequential)] private struct LOGFONTA { public int lfHeight; public int lfWidth; public int lfEscapement; public int lfOrientation; public int lfWeight; public byte lfItalic; public byte lfUnderline; public byte lfStrikeOut; public byte lfCharSet; public byte lfOutPrecision; public byte lfClipPrecision; public byte lfQuality; public byte lfPitchAndFamily; public unsafe fixed sbyte lfFaceName [32]; }

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• How to install network drivers during installation?

  - by Matt

  I have a server that I'm attempting to install windows onto. However, the disk is an iscsi target provided by ipxe. Everything appears to go well until about 3/4 through the install process I get an error about a critical driver missing and the installation is cancelled. I would say the critical driver would be the network card. It's an intel nic and the drivers are not on the windows installation CD. I tried slipstreaming them with RTSevenLite, but after it created the CD it seems it failed to make it bootable. I've also not been successful in making a bootable USB thumb drive or USB HDD. I suspect a buggy bios even though I have the latest. How to install network drivers during installation? Windows used to provide an optional F6 during install feature but this seems to be missing in Windows Servert 2008. Perhaps there is a way to do this, or another method?

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• Scite Lua - escaping right bracket in regex?

  - by ~sd-imi

  Hi all, Bumped into a somewhat weird problem... I want to turn the string: a\left(b_{d}\right) into a \left( b_{d} \right) in Scite using a Lua script. So, I made the following Lua script for Scite: function SpaceTexEquations() editor:BeginUndoAction() local sel = editor:GetSelText() local cln3 = string.gsub(sel, "\\left(", " \\left( ") local cln4 = string.gsub(cln3, "\\right)", " \\right) ") editor:ReplaceSel(cln4) editor:EndUndoAction() end The cln3 line works fine, however, cln4 crashes with: /home/user/sciteLuaFunctions.lua:49: invalid pattern capture >Lua: error occurred while processing command I think this is because bracket characters () are reserved characters in Lua; but then, how come the cln3 line works without escaping? By the way I also tried: -- using backslash \ as escape char: local cln4 = string.gsub(cln3, "\\right\)", " \\right) ") -- crashes all the same -- using percentage sign % as escape chare local cln4 = string.gsub(cln3, "\\right%)", " \\right) ") -- does not crash, but does not match either Could anyone tell me what would be the correct way to do this? Thanks, Cheers!

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• Random flickering on 2.6.32 kernels after suspend

  - by whitequark

  I have XUbuntu 9.10 installed on a Toshiba NB200 netbook with Intel video card that's handled with i915 driver. With 2.6.31 stable, recommended kernel everything but WiFi works fine: Atheros ath9k WiFi shows too small signal power and loses packets in 'bursts' sometimes. With 2.6.32-* (I tested -9 to -11 from Ubuntu's kernel unstable ppa) everything works fine just prior to first suspend: echo mem >/sys/power/state. After it random unidentified fullscreen 'one-frame' flickering begins in Xorg, and after a couple of minutes everything eventually hangs while showing filled grey (not white; it is like default button colour) screen; no X keys are working: Ctrl+Alt+Fn don't, blind typing in console too. Magic SysRq still works and I was able to reboot. Also there is one out-of-tree kernel module called omnibook that is required to turn on WiFi and Bluetooth. Any advices?

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• Asus V1S/V1V inverter cable

  - by Bill

  I have an Asus V1V, which is the same as the Asus V1S except for the video card. I have a problem where the screen will randomly lose brightness or flicker between being lit and not lit. The picture below is of the left hinge, with the cover removed. Pressing one of these cables affects this behaviour, and pressing it in place will resolve the issue for a few hours. To me this means the inverter cable is damaged. As the picture shows, there are two cables, an LCD cable and what I assume is an inverter cable. I purchased an LCD cable for my model of laptop, but have been unable to find an inverter cable. It seems not to exist. I would like some input on if an inverter cable actually exists, if it is likely the problem, or solutions in general to resolve this problem permanently.

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• How can I tell if I have PCI Express 2.0 or 2.1?

  - by Stefan Lasiewski

  I am looking at a variety of PCI Express cards, such as a SATA RAID Controller and a Video Card. Some of these cards say they only support PCI Express 2.1, not PCI Express 2.0. I know that my motherboard supports PCI Express 2-something, but the manual doesn't say '2.0' or '2.1'. How can I tell if the PCIe slot on my motherboard is PCI Express 2.0 or PCI Express 2.1? Is it possible to determine the PCIe type from the Windows or Linux commandline? I was under the impression that most PCI Express 2.1 devices are backwards compatible with PCI Express 2.0. Is it possible that the vendor is wrong in saying that PCI Express 2.1 is required?

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• Camera Filters in ios7

  - by Muhannad Dasoqie

  How I can use the camera filters that already exist in iOS7? If i used this code: UIImagePickerController *picker= [[UIImagePickerController alloc]init]; picker.delegate = self; picker.allowsEditing = YES; picker.sourceType = UIImagePickerControllerSourceTypeCamera; [self presentModalViewController:picker animated:YES]; the camera will open, and I can capture a photo but without using the filters. my question is: can I use the exist filters in camera view in iOS7?

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• dell u2410 3dMark Benchmark distortion problems

  - by Scanningcrew

  Ive been doing burn in testing for a new system I have put together and I am running into some video distortion problems with running the 3DMark benchmark tools (Both 06 and Vantage). The graphics will be fine, then sometimes during a test switch the screen will light up with thin horizontal ranibow lines (Something that looks very "glitchy") If i turn the monitor off and back on it clears up. All the tests "pass" and my system gets good marks but it concerns me if I might have problems with games (The screen returns to normal if I dont resest monitor and just let tests pass). I want to return a problem component now before its too late if it is something with the new hardware. Also, I am monitoring temp with thermal laser gun and the card itself is not going above 65c. Any ideas? System: Asrock x58 Xtreme - Last BIOS (1.80) EVGA Geforce GTX 285 w/ latest nvidia drivers (Connect via DVI1) Dell U2410(Set to 59hz refresh 1900x1202 -although I believe benchmarks run 1200x1024) Windows 7 Ultimate 64 12Gb DDR3 1600 RAM

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• Inconsistent black levels in windows 7 media center

  - by James G

  I've got a HTPC running windows 7 64bit, hooked up to a Samsung LCD TV. My problem is different types of video are displaying different black levels on the TV. When I play a bluray through Arcsoft Total Media Theater I have to set the "HDMI Black Level" to "normal" in the TV picture options menu. When I play recorded TV through WMC I have to set it to "low" otherwise the black colors on the video are washed out and grey. Is there any way to configure the system so all videos are displayed with the same black level? The hdmi black level setting is deep in Samsung's menus so it's becoming a chore to keep switching it everytime I watch a different type of video. I'm using an ATI 4670 graphics card with HDMI output going straight to the TV. In the ATI catalyst control center I've got pixel format set to RGB 4:4:4 (Full RGB) since the TV wont allow me to change the HDMI black level if I choose one of the other settings.

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• Dropbox alternative with local sync support?

  - by srid

  I am currently using Dropbox. Just decided to sync my huge (about 5 GB) iTunes Library (music collection) in Dropbox. For that I must subscribe to their paid account. But before I do so, I'd like evaluate the alternatives. Is there an alternative that does this? Local LAN sync (eg: sync my huge music collection across computers in local network without uploading/downloading them to internet) The following would be nice (but not required): Native android client - so music will be made available in the Android music app / SDHC card Selective sync: sync particular folders / exclude certain folders on certain computers .. eg: excluding porn folder on work computers ;-) Just like Dropbox, it MUST work on 64-bit Windows, Linux and Mac. Know of any? (I am currently evaluating Spideroak. Boy, was it so complicated to use?)

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• Using a Raspberry Pi as a VPN?

  - by sudo rm -rf

  So I'm sure many of you have heard of the new Raspberry Pi project. I was looking at messing around with Model B, which has the following relevant specs: Broadcom BCM2835 700MHz ARM1176JZFS processor with FPU and Videocore 4 GPU 256MB RAM Boots from SD card, running the Fedora version of Linux (ARM Version) 10/100 BaseT Ethernet socket USB 2.0 socket So I was curious if it would be possible to create a simple VPN out of this little machine. I do realize that since it's an ARM processor that might mess up quite a few things. Any ideas if this is possible? Just for what it's worth, this would be a personal project so I'm not worried about performance.

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• dictionary of lists of dictionaries in python

  - by Andy

  I'm a perl scripter working in python and need to know a way to do the following perl in python. $Hash{$key1}[$index_value]{$key2} = $value; I have seen the stackoverflow question here: List of dictionaries, in a dictionary - in Python I still don't understand what self.rules is doing or if it works for my solution. My data will be coming from files, and will I will be using regexes to capture to temporary variables until ready to store in the data structure. If you need to ask, the order related to the $index_value is important and would like to be maintained as an integer. Any suggestions are appreciated or if you think I need to rethink data structures with Python that would be helpful.

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• How do I read live camera data on the iPhone (like Microsoft Tag Reader)?

  - by Bill

  While the user is still in UIImagePickerController, I'd like to be able to get a UIImage representation of the image in the camera, make some changes to the image, and then display the altered image instead of the image coming directly from the camera. How can I do this? I tried setting a timer and calling takePicture, but calling it seemed to have no effect. The documentation says: Calling this method while an image is being captured has no effect. You must wait until the associated delegate object receives an imagePickerController:didFinishPickingMediaWithInfo: message before you can capture another picture. So how can I do this? I know that it's possible, since apps like Tag Reader are able to detect when something specific rolls in front of the camera. Thanks!

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• WinAPI C - RunAsUser from REDMON_USER and REDMON_SESSIONID

  - by scriptmaster

  I installed a PostScript printer driver and have setup REDMON (redmonnt.dll) for redirecting postscript output to my program. In my rather simple c program I capture the data from STDIN and I am able to successfully save it into a .ps file. The file looks OK. However, I want to start gsview.exe for viewing the file. If I call ShellExecute it fails in Windows 7 because of permission issues. It seems that my program is called under a different user account (LOCAL SERVICE). So I am looking for a way to run gsview.exe under a specific username (the user who initiated the print job is available to me in a variable as REDMON_USER along with the SESSIONID as well. I am stuck (and my stack is overflowing =) What are the minimum WinAPI call I need to use to launch a program given a username and a sessionid? Any code examples in C/C++, .NET would be very helpful

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• Load testing a quicktime streaming server from ubuntu machine

  - by ebeland

  I have software that can launch and control multiple firefox browsers on Ubuntu EC2 images. I need to run a small load test against a QuickTime Streaming server. The stream starts automatically when loaded in a browser that has the QuickTime plugin, so I don't need to automate the stream once it starts. Alternately, I can also make these machines run arbitrary ruby code or executables. How can I get these ubuntu machines to pull in the stream? Also, how can I capture bandwidth usage (maybe a shell script?) on the worker machines?

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• Add padding to display

  - by frbry

  I know this one is weird a bit. I need to scale down the display on my monitor like the example below: http://img706.imageshack.us/img706/4130/58518806.jpg Normally, this could be done with some adjustments in monitor's OSD, but there is no OSD on my LCD monitor. Is it even possible by software? Thanks. Edit: Graphic Card: Intel G33/G31 express Chipset family It would be good if it's permament but it's not needed. I can change my operating system but currently i use Windows XP.

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• Windows 7 x64 Pro not indexing PDF content ?

  - by Wookai

  In an attemp to get rid of all the paper clutter that I receive each day, I started scanning and ORCing all my important documents last year. I was using Windows Desktop Search on Vista to index my "Administrative" folder in which I keep all these scanned documents, to be able to quickly retreive them when needed. I upgraded to Windows 7 RTM recently (I got the x64 Pro version, via the MSDN-AA channel of my university). Since then, it seems that the content of the PDFs is not indexed anymore. For example, I have the warranty for my GTX260 graphic card. In the PDF, using Acrobat Reader, I can search for the string "GTX260" and it finds the relevant lines. However, if I perform the same search in the folder containing the PDF, nothing is found. I checked in the indexing options, the folder is supposed to be indexed.

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• HD movies stutter.

  - by Absolute0

  I just put together a new system build in the hopes that all of my daily tasks would run smoothly and without any hiccups. Unfortunately I am still seeing some sound and sometimes video stuttering when playing HD movies in VLC (no problems with xvid/divx files). My setup is as follows: Intel core i5 750 quad core 2.66mhz 4GB ram asus p55 motherboard radeon hd 5570 video card 650gb 7200rpm western digital sata HDD 23" Nec ea23wmi monitor Operating System: Windows 7 What might be the main bottleneck that needs upgrading to fix my delays? Seems like the hard drive might be the problem but anything faster than 7200rpm is beyond my budget for a decent hard drive. Could it be anything else?

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• Windows 7 Via Hyperion 4-1 drivers

  - by Gratzy

  I have a clean install of Win 7 on some relatively old hardware. Everything works pretty well however my cpu is pegged at 100% most of the time. Task Manager shows srvchost as being a main culprit of course but also system interrupts. I have a Biostar socket 478 MB with Via chipset. I have tried to find Windows 7 drivers for this but when I download and try to install what VIA/BIOSTAR say should be good for all OS's it will not load. I get a message saying can't find components for this OS. Anybody have any idea where I might find suitable drivers for the Chipset? BTW I'm not using the integrated graphics on the board but have a radeon 4500 pci-e card.

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• Scan And Fix a RAW drive

  - by Claus Jørgensen

  Hi Basically I got the same problem as described in this thread. When I plug my HTC Hero Android Phone with USB into my Windows 7 computer I get a "Do you want to Scan and Fix" message. However, if I click "Scan and Fix", the USB instantly unplug itself, so that's no good. I've tried updating drivers from HTC with no luck. I've also tried running chkdisk from command-line with the message that it can't be used in RAW drives. This is really really annoying, and the SD card works just fine if I ignore the message, so I just want a way to disable/hide this message permanently. If anyone have some ideas how this can be done, please let me know. Thanks.

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• Graphics Startup Screen

  - by Wesley

  Specs: AMD Athlon XP 2400+ @ 1987 MHz / 2x 512MB PC3200 DDR RAM / 160GB IDE HDD / 128MB GeForce 6200 AGP / FIC AM37 / Windows XP Pro SP3 So, every time I start up my machine, there's a startup screen for the graphics card. It should display "NVIDIA GeForce 6200 VGA BIOS" with some other copyright information underneath it. However, it randomly changed to say "NV44A VGA BIOS." I think the GeForce 6200 codename is NV44A or something, but is there someway to change it back to say "GeForce 6200 VGA BIOS" or, if not, to completely stop it from showing upon startup? (Graphics drivers are all up to date.) Thanks in advance.

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