Questions tagged [gpu]

Processor specifically designed to perform fast memory manipulation, with instructions specifically tailored to handle computer graphics processing and rendering

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How to force Chrome to use integrated GPU for decoding?

I want Chrome to utilize iGPU (GT630 on i7-8700k) for video decoding, especially VP9 decoding on YouTube. My discrete GPU is GTX970 and it is not capable of decoding VP9. Currently, VP9 is software ...
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1answer
1k views

Windows 10 Can't Play Any Media

For the past few months, if my machine is on for too long it can't play any video or audio files. This happens in the browser and using native players (WMP, etc...). Restarting my machine fixes the ...
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2answers
4k views

Can wrong drivers in Windows cause hardware failure?

If I install wrong drivers manually or via a driver update software for my GPU, BIOS or anything else in my PC - can it cause the part to fail? I have already lost two laptops from onboard GPU failure ...
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2answers
5k views

System won't boot: Gigabyte HD 7790 1GB OC GPU issue or Corsair VS550 PSU issue?

Installed a new GPU, and PC won't boot. Turn it on and: No monitor signal at all (tried HDMI and VGA via DVI, on 2 working monitors). CPU and GPU fans DO spin, but No system beeps, no sounds from ...
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4answers
2k views

Options for scalable commodity GPU servers for CUDA?

I'm doing some machine learning work that benefits tremendously from using the GPU. I'm kind of at the limits of my current setup (A workstation with a single GTX580) and I really don't have room for ...
4
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2answers
1k views

What is causing sudden freezing during running real-time program?

So I run a high intensive (CPU/GPU) real-time program. During normal execution suddenly everything freezes for 1-4 seconds. I opened "Process Explorer" in the background to help gain insight and maybe ...
4
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2answers
963 views

What is the mechanism that allows for dual Nvidia card Framebuffer Combining without SLI?

First, let's make sure we're all on the same page: As a bit of background information, please know that when you start up an operating system -- any operating system -- the BIOS (or UEFI GOP) tells ...
4
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1answer
390 views

GPU running underclocked / under normal speed?

I have tried to overclock my card. Seemingly it worked, and the GPU-z shows the OC speed (see GPU3.png). However, current readings are REALLY far from the normal speed of the GPU. That's what I can't ...
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2answers
7k views

How do I deal with too few internal PCIe power connectors for a GPU?

I have an HP Z820 workstation and currently I have an Nvidia Quadro 600 (for display) and a GFX Titan (for CUDA computing) installed. The Titan takes up all the available internal PCI-Express ...
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1answer
4k views

How to check that firefox switches from integrated to dedicated graphic card in html5 or WebGL (when needed)?

This question is NOT: How to know if Firefox uses hardware acceleration? The question rather focuses on, when it does switch from CPU to HW acceleration, if it does so with my dedicated card or with ...
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3answers
7k views

What does bandwidth of a device mean?

I am presently learning CUDA and I keep coming across phrases like "GPUs have dedicated memory which has 5–10X the bandwidth of CPU memory" See here for reference on the second slide Now what ...
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1answer
191 views

GPU showing x1 bus interface rather than x8

TL;DR: GTX 980 is running at x1 instead of x8 both in SLI and as a solo card. Another 980 is running perfectly in the same situations. I recently purchased a second 980 (EVGA) to run SLI with my ...
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0answers
3k views

Recompiled QEMU with OpenGL, but virt-manager or libvirt tells me This QEMU doesn't support spice OpenGL

I wanna to use virtio-gpu according to this blog: https://www.kraxel.org/blog/2016/09/using-virtio-gpu-with-libvirt-and-spice/ I am using Debian testing, but QEMU in offical debian source is not ...
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1answer
325 views

x16/x16 vs x8/x8

I am considering purchasing an LGA1155 board but dual GPUs they only run at x8/x8. From my research it seems that you lose about 1-3% tops when running at 2500*1600 but a lot more when running games ...
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5answers
3k views

How much electricity will I save if I use the onboard graphics card [closed]

If I use onboard video instead of a PCI-E card, will I save much money in the electricity bill?
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1answer
24k views

I plugged an 8-pin EPS (CPU) cable into the GPU's PCI-E port. Is it damaged?

The r9 290x I wanted to use needs 16 pins, my PSU which I thought had 1 PCI-E 6 + 2, 1 PCI-E 6 and 1 PCI-E 8-pin setups, actually had a second 8-pin EPS cable. I don't currently have something to ...
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2answers
41k views

AMD Graphics Drivers won't install properly

Windows 8 x64 I have an MSI Frozr II AMD Radeon 7850 2GB. I bought it maybe about two weeks ago and upon installing it I've been having problems with the HDMi audio from it. I have another question ...
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1answer
1k views

Why do GPUs overheat?

About a year ago, I added a 9800GT (1 GB version) and a Corsair CX500 PSU to an HP M8000N computer. A few weeks ago, the HDD overheated and I decided to transfer the GPU & PSU to a new build, ...
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2answers
32k views

HDMI goes into motherboard or graphics card?

This is probably obvious but I'm new to this. I've got a new HDMI monitor, which I'll be using with my new build. Some motherboards say 'HDMI' on them, but so do graphics cards. This seems sort of ...
3
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1answer
826 views

Integrated Graphics vs Integrated GPU

What are the differences between the APU/Sandy Bridge graphics and all the integrated chips before them?
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1answer
5k views

KVM GPU passthrough of nVidia dGPU on laptop with hybrid graphics without proprietary drivers on host

I have a 2017 Dell XPS 9560 with a discrete nVidia graphics card in addition to integrated Intel graphics. The nVidia card is usually powered down by way of an ACPI command. I do not have, or want, ...
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2answers
13k views

How do you measure GPU throttling?

How do I determine or monitor when and to what extend my GPU throttles due to thermal constraints? Is this data available natively in logs or do I need to run a separate program beyond what is ...
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2answers
2k views

LED screen occasionally will turn blue with horizontal lines (not BSOD)

Every now and then, my computer screen will turn blue with white horizontal lines. I thought the original reason was my overclocked GPU (300 MHz oc'd). However, when playing games (mostly BF3) and ...
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1answer
734 views

How/where can I compare different vendor boards of a particular GPU?

I'm looking at getting a new graphics card. Whilst I've settled on the GTX 580, I have no idea which vendor (board) I should go for. This is something that has always bugged me - it's relatively easy ...
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1answer
3k views

Can I use four monitors with a dual-link dual-DVI card?

I plan to get this card, a Gigabyte GTS 450. Apparently it has two DVI ports which support dual-link. Does that mean I can plug in two DVI monitors per port, i.e. four monitors creating one big ...
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2answers
718 views

If I use a discreet GPU with Sandy Bridge, would Sandy Bridge's on-die GPU be sitting idle and be completely wasted?

If I use a discreet GPU with Sandy Bridge, would Sandy Bridge's on-die GPU be sitting idle and be completely wasted? Or would the on-die GPU somehow work with the discreet GPU and still be productive?...
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3answers
5k views

prevent a program from creating a certain folder

I have a HP dv6-6170us and my AMD GPU is broken (my laptop froze once two months ago and I wasn't able to log in anymore so I tried to reinstall Windows 10 and when I try to install the driver or even ...
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3answers
6k views

Physx processor: CPU vs GPU

By default nVidia settings sets the GPU as the physics processor. In cases where the CPU is powerful enough, is it better to set CPU as the physx processor? In my case my i7 3770k is mostly unused (...
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2answers
589 views

Is there something like the unix command “top” for CUDA?

More generally, how can you check the current status of your GPU? (current number of threads running, memory state, and so on). (I'm using linux, so Windows-only solutions, while interesting, won't ...
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2answers
988 views

Chrome extension popups not displaying on second monitor

Since I have upgraded to Windows 10 none of my chrome extensions are displaying popups when their icons are clicked and sometimes a small corner of the popup will display. I have discovered that when ...
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1answer
641 views

AMD Kaveri + dedicated graphics card

I have read an article about an AMD technology used in A series Kaveri processors called HSA In few words they make processors with GPU cores, and HSA is basically a technology that makes the GPU ...
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1answer
5k views

How do I change GPU core voltage?

I've got an AMD Radeon 6790 with Mint 14, and I'm experimenting with over-clocking the GPU for Bitcoin mining. Right now, I'm running it at 990/130 stable at stock voltage (I think 1.185V), but I ...
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2answers
2k views

Computer GPU fan seems louder after cleaning and reapplying thermal paste

This is more of a "trying to get some information" than "oh my god, what to do" post. Yesterday, I finally had it with my computer overheating all the time and I realized I haven't changed the ...
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1answer
2k views

Inserting gpu in motherboard makes video signal of motherboard dissapear?

Is it normal that when you connect a GPU to a motherboard, the video output from the motherboard connectors disappear, and only the GPU connectors give the video output? This is relevant to me ...
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2answers
1k views

Precautions for replacing nVidia GPU with AMD GPU

My nVidia GeForce 8800 GT broke. I bought an AMD 5770 to replace it. I cant log on to my computer to remove the nVidia driver because I cant see the screen with a broken GPU. Without doing so, is it ...
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1answer
2k views

GPU usage drops causing FPS drop spike

I've been experiencing some stuttering/micro freezes while playing a certain videogame, BF4 to be precise. When running at different video qualities, ranging from low to ultra, the game scores 60fps ...
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2answers
2k views

NVIDIA Optimus: Find out what is using my laptop's discrete GPU

My laptop has NVIDIA Optimus technology, which seamlessly switches between the integrated graphics and NVIDIA discrete GPU to provide an optimal balance between battery life and performance. There is ...
3
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1answer
952 views

Why does Chrome cause very high GPU load in full screen?

My operating system is Ubuntu 15.04. Since a few weeks I have an annoying problem with google chrome. Whenever I'm switching to full screen mode - be it a video, a flash application or anything else - ...
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2answers
17k views

Correct graphics card is not being used

I just bought this notebook and I am having trouble switching between which graphics card a game uses. It comes with an AMD Radeon HD8530M and Intel HD Graphics Family. I went into "Configure ...
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1answer
985 views

How to go about debugging semi-random PC restarts. (In game: Dota 2)

I've been playing Dota 2 for a while on my home PC, but lately it seems to be crashing semi-randomly. Symptoms: From alive to dead in 1 second. No pre-warning whatsoever. Mostly just before big ...
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1answer
682 views

CPU overheating while stresstesting GPU

I have a GTX570 and a i5-3570k processor. Lately, I've been having problems with games randomly crashing and my pc rebooting while playing them. I've encountered a weird problem: while running a GPU-...
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1answer
669 views

Potential “latent” damage after short circuit on video card?

Latent is probably not the right word. I dropped a short metal scrap on a running video card. Obviously not a very good idea. A small spark was seen, and the PSU automatically shut down itself. I ...
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1answer
22k views

Computer screen sometimes won't turn on but computer appears to boot normally in background, forced to reset

I need help narrowing down the possible causes of a recent problem I have been having with my computer, due to a whole host of changes I made around the time of the problems appearance I don't know ...
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1answer
1k views

570 GTX SLI - Amp requirements per 6pin

I see plenty of information telling my decent 850 watt (XIGMATEK MC NRP-MC851 850W) will support SLI with two 570 GTXs. However, it's 12+ rails distribution makes me think otherwise: +12V1@18A, +12V2@...
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1answer
503 views

My video card is rendering 60fps, why does my monitor show less?

My Dell LCD e197fpf 19" 75Hz monitor is not outputting the full framerate it is capable of when put at resolutions above 1024x768. I expect my monitor to output the framerate given by the GPU up to ...
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1answer
4k views

How exactly does “intel_iommu=igfx_off” affect the passthrough of an Intel IGD?

How exactly does "intel_iommu=igfx_off" affect the passthrough of an Intel IGD? Does it prevent the detachment of Intel IGD from host altogether so that the emulator such as qemu-kvm won't even see ...
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1answer
2k views

How do I find out if VLC is using hardware rendering/decoding at this moment?

Let's say I am currently playing a video in VLC. How do I find out if VLC is using hardware (GPU) rendering, or decoding, at this moment? This question is not about enabling using the GPU.
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1answer
298 views

Gamestream accellerated VNC application?

Steam currently has it's in-home streaming solution in he beta install of the application. This tech lets you stream your game over a VNC-like protocol to local devices but uses hardware encoding on ...
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1answer
637 views

SLI bridge vs powerful GPU?

I'm looking into upgrading my Gaming machine with a new GPU configuration. I want to avoid specifics and try to keep things on topic, so in general, am I likely to get better performance by putting 2 ...
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1answer
2k views

laptop is getting too hot after switching from Windows 8 to Ubuntu 13.04

Ever since I switched from Windows 8 to Ubuntu 13.04 my Laptop is getting way to hot. When I run sensors I frequently get something like: acpitz-virtual-0 Adapter: Virtual device temp1: +86.0°...