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0answers
10 views

Multi GPU Compiz?

Is it possible to enable OpenGL compositing in multi GPU setup? I have Quadro 4000 and GTX580. Atm I'm using xinerama and 4 X servers but it doesn't support Compiz. On the other hand I can't find a ...
0
votes
1answer
35 views

Driver install neccessary on ThinkPad with two GPUs?

Im not that new to Linux but just used it the last years for server and/or testing most often in VMs. Now Ive just got a new ThinkPad and I want to use debian as a native install. My notebook: Lenovo ...
1
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0answers
18 views

Attempting to use OpenCL with Nvidia on Arch Linux

I have an Nvidia Quadro 400 GPU. In order to use OpenCL, I installed the following packages: nvidia-340xx nvidia-340xx-libgl nvidia-340xx-utils opencl-nvidia-340xx ocl-icd opencl-headers pyopencl-...
2
votes
3answers
86 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.
0
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1answer
85 views

How to use the proper video driver on Scientific Linux 6 for Display Port screens?

I am working with (one of) my workstation(s) working under Scientific Linux 6, so, basically a quite old version of Red Hat Enterprise Linux. I would need to use 2 screens, but only have 2 DisplayPort ...
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0answers
48 views

Why do interrupted processes show up in nvidia-smi?

When ‚ÄčI kill processes in terminal using C-c and run nvidia-smi, the process are still shown as "compute processes". These processes are no longer in the top resu‚Äčlts. I have to kill -9 to clean them (...
3
votes
1answer
55 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 ...
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0answers
36 views

CUDA Installation only works with some programs

CUDA 7.5 on linux mint - current installation works perfectly well with MATLAB, now trying to run some GPU code from python and python can't find nvcc. CUDA is installed at: /usr/local/cuda-7.5/ ...
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0answers
19 views

Is there a way to specify gpu priority per process?

We have niceness value on Linux, which ~means CPU priority (PR = 20 + NI). We can increase niceness for heavy task, decrease it for main task etc. But is there an analogue of niceness, but for GPU?
1
vote
1answer
12 views

Do I need an NVidia GPU locally if I only sync projects to create remote builds on targets?

I'll be installing the cuda toolkit 7.5 on debian stretch, currently without an nvidia card. I only intend to do remote development (sync projects to create remote builds on targets) on an nvidia ...
1
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0answers
149 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-...
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0answers
160 views

GPU Passthrough with qemu - no video output (AMD 7970)

I am trying to setup GPU passthrough on Arch. I followed the PCI passthrough via OVMF wiki along with some other resources online. I substituted a few steps as needed, for example I am using systemd-...
0
votes
0answers
65 views

Debian Switch between gpu

I'm not very expert in Linux. Trying to use Linux for everyday use instead of windows to learn it more. I'm using Debian jessi and primarily use integrated GPU. But Sometimes I need to connect a ...
0
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0answers
59 views

Building Mali kernel modules on mainline Linux

Suppose we have an ARM board running a mainline Linux kernel. The system works otherwise, but has no GPU acceleration available. Is there something that would prevent me from building and modprobing ...
0
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0answers
22 views

Possibilty of DisplayPort over PCIe

I'm trying to figure out if it would be possible to add a DisplayPort to my Linux PC using a PCIe slot. I have found cards like http://www.ebay.com/itm/PCI-E-1x-Express-to-USB-3-1-Type-C-Dual-Port-...
1
vote
1answer
274 views

Intel GMA 3600 Linux support

I am working with an embedded board which includes an Intel Atom N2600 processor and a GPU GMA 3600 series based on the PowerVR SGX 545 graphics core (developed by Imagination) [Link1]. As far as I ...
3
votes
1answer
64 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 ...
0
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0answers
15 views

Linux Mint & t420s

I have installed Linux mint 4.3 64bit and it seems to run without problems out of the box. I notice a highly increasing of temperature while watching movie via youtube or some website where it has to ...
0
votes
0answers
66 views

OpenCL with NVIDIA - Segmentation Fault

I've been struggling to get OpenCL working on my Linux Mint x64 machine. Specifically, any OpenCL program that I write or use seems to encounter a "segmentation fault" during certain methods that come ...
3
votes
0answers
71 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 ...
2
votes
0answers
274 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?
1
vote
1answer
161 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 ...
0
votes
0answers
29 views

List the GPU utilizations for each screen

How can I list all screens launched with screen along with their GPU utilizations? (screen -ls gives the lists of screens but not their GPU utilization) By GPU utilization of a screen, I mean the sum ...
1
vote
0answers
48 views

Why nvidia-smi's GPU so rarely reaches 100%?

I have logged the GPU utilization of my 3 GPUs (GeForce GTX Titan X) for 5 days with nvidia-smi, every 10 seconds. The GPUs were all being utilized: I count 1307 occurrences of 99 % while only 8 ...
0
votes
0answers
15 views

Can I start a service with optirun?

I have a laptop with two GPUs (Intel and NVidia) so I have to use Bumblebee (via optirun) to use my NVidia GPU with some applications. I would like a service, which can be found in /etc/init.d, to ...
0
votes
2answers
692 views

How to log GPU load?

I wonder how to log GPU load. I use Nvidia graphic cards with CUDA.
0
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0answers
60 views

Zorin OS 9 (potentially) not detecting my GPU and monitor stopped displaying 1080p

I recently installed Zorin OS 9, which is based off of Ubuntu 14.04 LTS. I also have an PowerColor Radeon R9 270 TurboDuo installed. When I first got the PC to work, the monitor displayed 16:9 1080p ...
5
votes
2answers
63 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 ...
1
vote
1answer
64 views

Monitoring GPU memory I/O

Is there any way to monitor GPU memory I/O from the shell, with Nvidia graphic cards used with CUDA? I use nvidia-smi to see the current memory utilization, but I would prefer to see the deltas ...
1
vote
0answers
116 views

Is AMD GPU FirePro support enough for Linux's Matlab and CUDA?

I need GPU with CUDA support and open-source community support for FFT computation with Matlab R2015b. I think I need to reject nVidia GPUs because of bad open-source support, here Torvalds about ...
1
vote
1answer
336 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.) ...
7
votes
1answer
107 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 ...
1
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0answers
76 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 ...
3
votes
0answers
65 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 ...
0
votes
2answers
678 views

ffmpeg: nvenc mit crf option - very low bitrate

I bought a new computer some time ago.. I installed nvenc for ffmpeg to encode my videos with the h264 codec. To optimize i used the -crf option but something went wrong.. I want to encode a full ...
1
vote
0answers
66 views

Per-user GPU usage on a Linux machine (CUDA)

I use the CUDA toolkit to perform some computations on my Nvidia GPUs. How can I see the per-user GPU usage on a Linux machine (CUDA)? nvidia-smi doesn't seem to contain information: I am aware I ...
1
vote
2answers
521 views

Unable to load the kernel module 'nvidia.ko'

On my system I'm unable to install the recommended graphics driver, so something must be wrong with my installation. The GPU chipset is ATI ES1000, but the recommended driver is NVIDIA NVS300 ...
1
vote
0answers
50 views

High GPU usage before starting X-Server

When starting my Debian Jessie, my GPU (ATI 5770) uses a lot of power (it is getting hot), although I am only displaying the terminal. Then, if I start an x-server, the GPU cools down again, also the ...
1
vote
0answers
194 views

How to boot Arch Linux after changing from AMD Radeon HD to Nvidia GTX video card?

After swapping video cards my PC boots into Windows 7 just fine, but Arch Linux gets stuck before entering graphical mode. /var/log/Xorg.0.log contains some message listing all the supported AMD (aka. ...
2
votes
0answers
390 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 $...
1
vote
0answers
38 views

how to stop GPU NVIDIA calculation

I'm currently into learning using NVIDIA for parallel calculation. Sometimes I run too many tasks in parallel and my computer stops responding (I use both CPU and GPU for calculations). So, I cannot ...
3
votes
1answer
204 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 ...
1
vote
0answers
260 views

How to switch between GPUs on Mint 17.2 ASUS laptop?

I'm new at working with laptops and Linux as system for everything. I have small problem, I don't know how to check, and change if somethings is wrong, which gpu is used in games. I have NVIDIA ...
3
votes
0answers
300 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 (...
0
votes
0answers
61 views

Lubuntu: fullscreen image moved to the left

If I run DOSBox or LTris fulscreen on Lubuntu, the image is moved to the left. This happens both with open-source drivers and NVIDIA drivers. My GPU is: Gigabyte Geforce 8500GT What could be wrong? ...
2
votes
2answers
566 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 hdd, because it would be too much for only testing a small thing on Ubuntu. So I started ...
5
votes
2answers
6k views

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

How to install Cuda Toolkit 7.0 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 for ...
1
vote
0answers
93 views

multiseat dual gpu, can I have 2 different drivers?

I have 2 radeon 7950, set up my multiseat, everything is working fine. I use the free radeon drivers, and I'm pretty happy except for one thing, I can't test the gpu mining of bitcoins.... I'd like to ...
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vote
0answers
2k views

Debian 8 Jessie and NVIDIA drivers

I am in the process of installing Debian 8.0 on a laptop with NVIDIA graphics cards. After a successful installation and reboot I use this guide to install the proprietary NVIDIA drivers; essentially ...
3
votes
1answer
438 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 ...