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1151

The time to send a packet to a remote host is half the time reported by ping, which measures a round trip time. The display I was measuring was a Sony HMZ-T1 head mounted display connected to a PC. To measure display latency, I have a small program that sits in a spin loop polling a game controller, doing a clear to a different color and swapping buffers ...


64

Technically VGA stands for Video Graphics Array, a 640x480 video standard introduced in 1987. At the time that was a relative high resolution, especially for a colour display. Before VGA was introduced we had a few other graphics standards, such as hercules which displayed either text (80 lines of 25 chars) or for relative high definition monochrome ...


54

Some monitors can have significant input lag Accounting for an awesome internet connection compared to a crappy monitor and video card combo its possible Sources: Console Gaming: The Lag Factor • Page 2 So, at 30FPS we get baseline performance of eight frames/133ms, but in the second clip where the game has dropped to 24FPS, there is a clear 12 ...


52

HDMI and DisplayPort are capable of transmitting audio as well as video. So, to Windows, it looks like an additional soundcard appears on your system, for which a driver is needed. So if you connect a monitor on the other end of your HDMI or DisplayPort and it can play sound, you can send sound to that monitor by selecting "Intel Display Audio" or ...


50

This is because Windows XP only supports DirectX 9. DirectX10 was added with Vista, but Vista also got a backport of DirectX11 from Win7 (Platform Update), so Vista/Win7/8 can use DirectX 11 and Windows XP DirectX9. And because providing Dx10 rendering path makes no sense when you can use the better DiretX11, most games only offer those 2 modes.


38

Open the system Control Panel, by typing Win+Break or going to My Computer and clicking on System Properties. Click on your Windows Experience Rating to go to Performance Information and Tools Click View and Print detailed system information Scroll down to the Graphics section. If you have the proper drivers installed for your card, it should say ...


34

I decided to write a bit about the programming aspect and how components talk to each other. Maybe it'll shed some light on certain areas. The Presentation What does it take to even have that single image, that you posted in your question, drawn on the screen? There are many ways to draw a triangle on the screen. For simplicity, let's assume no vertex ...


31

Use the DirectX diagnostic tool. Start, Run..., dxdiag Go to the Display tab of whichever monitor you want to determine is driven by whatever graphics card. This works on any version of Windows with DirectX, XP, Vista, 7, whatever.


29

It's hard to understand exactly what it is you don't understand. The GPU has a series of registers that the BIOS maps. These permit the CPU to access the GPU's memory and instruct the GPU to perform operations. The CPU plugs values into those registers to map some of the GPU's memory so that the CPU can access it. Then it loads instructions into that ...


29

The graphics card is the hardware as a whole, while the GPU is a chip, part of the graphics card or an onboard similar, which stands for "Graphics Processing Unit". Image: GPU on Graphics Card


27

It's primarily market segmentation to allow price discrimination. Businesses who make money from work done with these cards have different requirements than gamers. Nvidia and AMD are taking advantage of that by asking them to pay more. There are some minor differences to create this rate fence. For example, the Quadro / Fire Pro models use different ...


25

[First Question] "Does a USB Monitor require a VGA Card?" In response to your first question, no a VGA card[1] is not required to display to a USB monitor. However, a USB card or port is required in order to display to a USB monitor. "This 16-inch portable LED monitor is a must-have laptop accessory and receives both power and signal via a single ...


25

All the specified methods are fine as long as you have graphic card drivers installed. Here's what to do if you don't: In Device Manager, right click the Unknown Device (that you assume is the graphics card), select properties and go to Details tab. Select Hardware IDs from the Property drop list. Right-click and copy any of the values and paste it on ...


24

It is probably overheating. The card have a shutdown protection against high temperature. While the card is off, it cools a little. So when you restart your computer the temperature already dropped and the card is okay. As you don't use immediatly the card at full power, it remain active... until you play again with a GPU intensive game. You really have to ...


24

There shouldn't be a problem upgrading from one Radeon card to another, but to be 100% sure you can uninstall the existing Radeon drivers from your system before removing the old card. Windows will try to reinstall but just say "no" when you reboot still with old card installed. This will downgrade your graphics to the basic VGA/SVGA drivers, but that's a ...


23

Why did my graphics card explode? Looks like your fan exploded, not the card. Maybe it was old or running under excessive load for long periods of time. Why did my computer not use the internal graphics? Because a defective electrical component was still plugged into it.


23

It's not cheap, per se, but it could be done, yes. It'd raise the price of the card, but it could be done. Question is, though, why bother? If your card isn't fast enough to actually need 4GB of VRAM, it's wasted money, what's the point. You can have as many textures as you like, but unless you can actually pull that 4GB of data through for every single ...


23

Unfortunately a splitter will just mirror the display on 2 monitors. You will need something like the dualhead2go devices from Matrox to do what you're talking about.


22

This was a tough one. After many hours of trial and error, someone mentioned to me that overclocking could be the issue: overclocking can create issues with dual card setups (both CrossFireX and SLI.) You have to be careful about PCIe timings. I thought overclocking couldn't possibly be it, since this system has been ultra stable for MONTHS with the ...


22

It is very simple to demonstrate input lag on monitors, just stick an lcd next to a crt and show a clock or an animation filling the screen and record it. One can be a second or more behind. It is something that LCD manufacturers have tightened up on since gamers, etc have noticed it more. Eg. Youtube Video: Input Lag Test Vizio VL420M


22

Most motherboards do not allow you to use both the on-board graphics chip and an installed card. It's usually one or the other, with very few exceptions that I've found. In order to add additional monitors, you'll have to add another graphics card. Your motherboard's manual doesn't state specifically one way or the other, but you can try an experiment. ...


21

The following information was found here. The main reason graphics cards naming is so confusing is because they like to cram a lot of information in the name including; GPU manufacturer and model number, card manufacturer and model number, memory interface, motherboard slot, what it support, and more. If you cram a bunch f information into a name, you will ...


20

Use a tool like GPU-z


20

ATI drivers had mouse corruption errors since 2001. You have already discovered almost all the existing workarounds. You should contact their Support, and in the meantime keep on looking for driver updates. But I don't think that a 12-year problem has any hope of an early solution. Below is the complete list of workarounds that I was able to find : ...


19

GPU stress tests are generally designed to attempt to overheat the GPU. Depending on the particular test, this might or might not use the entire video memory or check its integrity at some point. Video Memory stress Test is specifically designed for this purpose, and it's quite similar to MemTest86+. You can test the memory using DirectX, CUDA or OpenGL. ...


19

It is quite possible that the cables you saw were not plugging into a normal DVI port, but into a DMS-59 port (especially if you saw it on a Dell). DVI and DMS-59 look quite similar unless you look close enough, but the DMS-59 connector has in fact the equivalent of two full DVI connectors, and thus needs the split cable (you cannot directly plug a DVI cable ...


19

PCI (and PCI-Express) were designed to fit into cases that also contained ISA cards, but still use the same brackets. This lead to them being create with the opposite handedness. I.e. the answer is historical reasons.


17

In Windows 7, you can also hold down the Windows key and press "p" to cycle through the various monitor enabling/disabling options. I've found this to be the simplest way to do it by far.


17

Wow, great answers -- and I have a fourth way! Click the start menu (or press the Windows key) and type "Device Manager", then launch Device Manager. If you're a command line kind of person execute devmgmt.msc. From here expand Display adapters to see what kind of video card you have. You can right click the display adapter and select properties to see ...


16

Because it's usually not your run-of-the-mill RAM, it will be high-speed, multi-port and possibly in a very compact size all of which make it more expensive for the manufacturer.



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