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Questions tagged [gpu]

The tag has no usage guidance.

204
votes
16answers
354k views

GPU usage monitoring (CUDA)

I installed CUDA toolkit on my computer and started BOINC project on GPU. In BOINC I can see that it is running on GPU, but is there a tool that can show me more details about that what is running on ...
32
votes
1answer
39k views

How to verify if hardware acceleration is enabled?

How can I verify whether hardware acceleration is available and whether it is enabled for my video card.
24
votes
6answers
50k views

How to install CUDA Toolkit 7/8/9 on Debian 8 (Jessie) or 9 (Stretch)?

How to install Cuda Toolkit 7.0 or 8 on Debian 8? I know that Debian 8 comes with the option to download and install CUDA Toolkit 6.0 using apt-get install nvidia-cuda-toolkit, but how do you do this ...
12
votes
2answers
4k views

How to force the fan to always spin?

I am using ArchLinux on an HP Pavilion dv9000t which has overheating problems. I did all what I can do to get a better air flow in the laptop and put a better thermal paste but there is still a ...
9
votes
1answer
3k views

How do I interpret the output of intel-gpu-top and intel-gpu-overlay?

I have these commands compiled and running but their contents are a bit of a mystery to me. The processes from intel-gpu-overlay read something like: 15R, 16B, 41ms waits. What is an R, what is a B,...
8
votes
1answer
1k views

Is it possible to use OpenCL on a minimal OS without X?

I'm looking to use OpenCL for Bitcoin mining. Obviously it is technologically possible to use a GPU and OpenCL without X; Windows machines do it all the time. I'm wondering if there is a way to use ...
8
votes
0answers
469 views

User-based GPU priority

I have a computer running Linux (Kubuntu 14.04.3 LTS x64), where I use the CUDA toolkit to perform some computations on some Nvidia GPUs. I share the computer with a few other users. How can I define ...
8
votes
1answer
3k views

nvidia-smi hangs indefinitely: what could be the issue?

I try to run nvidia-smi from the shell on a machine, but it hangs indefinitely: what could be the issue? Update (2016-08-09): Since this question received no answer, I crossposted it: https://...
7
votes
1answer
14k views

How to adjust NVIDIA GPU fan speed on a headless node?

How is it possible to control the fan speed of multiple consumer NVIDIA GPUs such as Titan and 1080 Ti on a headless node running Linux?
7
votes
1answer
1k views

GPU computing without X?

I am attempting to run GPU computation software on Ubuntu Server 12.04 without X since this box is going to be a dedicated computation machine. However the last requirement "Without X" is proving to ...
7
votes
1answer
812 views

How to get the GPU execution time of a script in the shell?

I would like to display the completion time of a script, in terms of GPU time (not CPU). For the CPU, I can simply use time: francky@gimmek80s:~$ time ls -l total 8 drwxrwxr-x 3 francky francky 4096 ...
7
votes
0answers
1k views

11 GB of GPU RAM used, and no process listed by nvidia-smi

In my GPU #0, 11341MiB of GPU RAM is used, and no process is listed by nvidia-smi. How is that possible, and how can I get my memory back? Thu Aug 18 14:27:58 2016 +-----------------------------------...
6
votes
4answers
7k views

Multi Nvidia GPU overclocking for computations (CUDA)

I have seen in forums and manuals that you have to add Option "Coolbits" "value" to xorg.conf or similar files. I have been able to get this working for the first GPU, the one rendering the display....
6
votes
3answers
11k views

How can I tell what version of OpenGL my machine supports on Arch Linux?

How can I tell what OpenGL versions are supported on my (Arch Linux) machine?
5
votes
4answers
9k views

Is it possible to completely turn off nvidia GPU to be able to run wayland?

I'm about to buy a new laptop that is being used with Linux only. Unfortunately finding a Linux laptop is not simple at all, and it seems the only option I found includes a nvidia Quadro M1200 and an ...
5
votes
1answer
2k views

How does X11 forwarding work?

How does X11 forwarding work? I am interested in knowing whether the processing to render graphics is done at the end of the host running the application or the host displaying the graphical interface?...
5
votes
3answers
1k views

rx 560x slower than integrated vega gpu on fedora 28

I'm using fedora 28 because it seems that is the only distro where that detects the rx560x correctly. Nonethe ess, I noticed that the performance when using the discrete GPU is significantly worse ...
5
votes
1answer
5k views

Can I scale GPU frequency?

My laptop is Thinkpad T400 with Ubuntu 12.04. My GPU is ATI graphics module, if I am not mistaken. I wonder how I can scale GPU frequency? software and/or shell script are acceptable. For cpu ...
5
votes
2answers
12k views

How to kill all processes using a given GPU?

I use the CUDA toolkit to perform some computations on my Nvidia GPUs. How to kill all processes that use a given GPU? (killing at once, i.e. without having to manually type the PIDs behind kill -9.) ...
5
votes
1answer
3k views

GPU usage per process on a Linux machine (CUDA)

I use the CUDA toolkit to perform some computations on my Nvidia GPUs. How can I see the per-process GPU usage on a Linux machine (CUDA)? nvidia-smi does list all processes for each GPU, but doesn't ...
5
votes
2answers
1k views

accelerated HTML5 video: what hardware is supported well by Linux?

After many, many, many failed attempts to get accelerated HTML5 video working on any hardware (tested about 5 machines) I came to the conclusion that accelerated HTML5 is something difficult under ...
5
votes
2answers
166 views

Determine if a graphics card is new

The 1 GB ATI/AMD dedicated graphics card of my Dell Inspiron N5010 laptop failed recently and I got it repaired from a local laptop service center as the laptop is out of warranty. The service man ...
4
votes
3answers
17k views

How to log GPU load? [duplicate]

I wonder how to log GPU load. I use Nvidia graphic cards with CUDA. Not a duplicate: I want to log.
4
votes
1answer
3k views

Should I use KVM or Xen ? What are the main differences? [closed]

I've spent a few hours trying to understand the differences between KVM and Xen without much succes. So both are Type 1 Hypervisors with comparable performances (source) and I don't understand what ...
4
votes
2answers
7k views

Remove nouveau driver (nvidia) without rebooting

I have a Ubuntu Version here, that is started from USB as a Live version. I do not want to install it on hard disk, because it would be too much for only testing a small thing on Ubuntu. So I started ...
4
votes
4answers
3k views

Monitoring a GPU cluster

I have 10 servers running on Ubuntu 14.04 x64. Each server has a few Nvidia GPUs. I am looking for a monitoring program that would allow me to view the GPU usage on all servers at a glance.
4
votes
1answer
2k views

CUDA ./deviceQuery fails sometimes

My setup: Ubuntu 16.04 CUDA 8.0, driver 375.39 ./deviceQury fails only sometimes. Usually it works fine. Now it failed after waking up from suspend mode. After reboot, it works fine. output: ./...
4
votes
0answers
403 views

Intel, DVMT & Linux: a question

In my Intel notebook BIOS I can change the amount of memory allocated to the integrated GPU (from 32MB to 512MB, via the selector "Pre-Allocated Memory"). My question is: Does Linux change the ...
4
votes
0answers
1k views

Why I need a framebuffer size larger then monitor size when transform destination area is smaller

I tried to remove 100px left & right the top of a 1366x768 screen (as below) using xrandr transformation. But I got an error about not enough framebuffer size. $ xrandr --output LVDS1 --fb ...
4
votes
1answer
611 views

Guide to set up GPU passthrough

I have been trying for several days now (had to reinstall arch twice during), with setting up GPU passthrough on my pc without success. The hardware is Asus Z97-P Intel I5-4690 AMD Radeon R9 380 (...
3
votes
1answer
10k views

How to disable Hardware Acceleration in Linux?

How can I turn off Hardware Acceleration in Linux, also known as Direct Rendering. I wish to turn this off, as it messes with some applications like OBS Studio which can't handle capturing of hardware ...
3
votes
2answers
77 views

How can I tell who manufactured my graphics card (as opposed to the GPU)?

I'm using a graphics card on some machine to which I don't have physical access. With lspci I can tell its: 84:00.0 VGA compatible controller: NVIDIA Corporation GM200 [GeForce GTX TITAN X] (rev a1) ...
3
votes
2answers
6k views

How do I kill an irq process on Ubuntu 16.04?

I can not kill irq/${nnn}-nvidia by kill -9 or pkill -f -9. Does anyone how to kill or stop those process?
3
votes
2answers
9k views

What is the GPU driver I am currently running?

I have installed latest nVidia graphic driver via this PPA "xorg-edgers/ppa". Now in Nvidia X server setting showing the driver version is 346.35. But in Ubuntu's Additional Drivers there is no such ...
3
votes
1answer
2k views

How to install graphic capabilities to CoreOs?

I would like to install CoreOs as a base on my desktop machine. Then, I could launch some containers, with eventualy a graphical environnement. So I have to add all the graphic stack: GPU drivers, ...
3
votes
1answer
1k views

How to assign tasks to GPU

I have found a benchmark from computerbase.de (http://www.computerbase.de/artikel/grafikkarten/2013/intel-haswell-grafik-fuer-desktop-pcs-im-test/3/ in german) where in one case a task (here video ...
3
votes
2answers
2k views

Black screen after inserting RTX 2080 Ti, computer won't boot at all

This is with Ubuntu 18.04 on a Dell 7920. So the Dell power light goes on but I get nothing aside from the occasional flickering of the HD light, trying to boot when I put the 2080 in my box. (I have ...
3
votes
3answers
2k views

Driver for GTX 1080 doesn't work on guest when using KVM PCI Passthrough

I believe we are running into a possible bug with the GTX 1080 (driver) and PCI Passthrough. My host is an Ubuntu 14.04 system. My guest is an Ubuntu 14.04/16.04 system (both do the same thing). I ...
3
votes
1answer
639 views

How to simulate GPU hardware failure?

I'm doing some research that has to do with GPGPU resilience with NVIDIA graphics cards and I've been looking for a way to, as accurately as possible, simulate hardware failure. I know about ...
3
votes
2answers
4k views

Upgrading OpenGL Drivers

I'm trying to learn OpenGL and most tutorials on the internet only offer guidelines for OpenGL 3.0 and higher. So I looked for my OpenGL version and glxinfo | grep OpenGL yields this: OpenGL vendor ...
3
votes
1answer
4k views

GPU Passthrough with vfio-pci still uses nouveau driver [closed]

I have a Dell XPS 15 9550 laptop running Ubuntu 16.04.1. I am trying to setup a KVM virtual machine with GPU passthrough in which the NVIDIA GeForce GTX 960M is used by the VM and the Intel Integrated ...
3
votes
2answers
360 views

GPU computation on Linux using open source kernel drivers

Assuming freedom to choose whichever currently available GPU is most suited for the job, is it currently feasible to do GPU computation (either CUDA or OpenCL) on Linux using one of the open source ...
3
votes
0answers
1k views

How to swap integrated Intel graphics card to discrete AMD

I am unable to change graphics card on Kali Linux 4.6.0, Debian 4.6.4-1kali1 (2016-07-21) x86_64 GNU/Linux with Gnome. Machine running is a HP Pavillion DV6. I have tried: Reinstalling AMD drivers: ...
3
votes
1answer
381 views

System lags/freezes, dmesg shows GPU errors and faux USB disconnect - what to do?

I use GNU/Linux Mint 18.1 64-bit on an Intel i5 3570K machine with a discrete nVIDIA-based graphics card. Recently there was a power outage in my neighborhood. After it, I couldn't boot my machine ...
3
votes
0answers
2k views

Installing Mali Drivers? (ArchLinuxARM)

I've recently gotten hold of an ARM-based Chromebook C100P. After successfully installing ArchLinuxARM, I've struggled to enable the Mali-T764 GPU. The recommended drivers for the device, (xf86-video-...
3
votes
0answers
1k views

Virtualbox and GPU Pass-trough: Device with host PCI address already attached to this VM

I have server with several GPUs. My idea is to attach them to different VMs in order to use that VMs in CUDA (or OpenCL) calculations. My setup: CPU: Intel Xeon E5-2670 GPUs: 1 x Radeon HD 7970 $ ...
3
votes
1answer
600 views

Multi GPU Supercomputer

I have a supermicro server running ubuntu server 14.04, and I would like to install a Quadro 400 (for display) a Nvidia GTX 295 and a Nvidia K80 however, when I install the driver for the K80 the ...
3
votes
1answer
290 views

X server with fglrx driver won't responce after exactly 49 accesses to X server

I have Arch linux with minimal amount of packages including xorg group and catalyst. I run X :0 and then run in infinity cycle following monitoring script: while [ true ]; do DISPLAY=:0 ...
2
votes
2answers
909 views

Is mainline Linux kernel capable of GPGPU programming?

Is there general purpose GPU support in the Linux kernel? Let me explain in more details since it's too broad of a topic. By the word "capable" I mean native support. That crosses out OpenGL AND ...
2
votes
1answer
3k views

How to fix “amdgpu dkms failed for running kernel” when installing amd gpu drivers?

I am attempting to install the AMD gpu drivers for an RX 480 in Ubuntu 18.4.2. Whenever I run amdgpu-install or amdgpu-pro-install I get amdgpu dkms failed for running kernel. Link to make.log I ...