Questions related to the the Graphics Processing Unit itself. Questions about graphics cards can be found at [tag:graphics].

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How to force the GPU do the display rendering?

I've installed 2 NVIDIA QUADRO K620 cards. But fullscreen video is sluggish, missing frames. one CPU core (of the 12, it's a 6-core Hyperthreading) is running 100% for xorg. I tried the nouveau and ...
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1answer
31 views

Intel HD graphics not working properly

I currently have an Nvidia GTX GPU in my system. I want to remove it from my computer and use only Intel HD graphics. However, when I attempt to use the hdmi and dvi ports on the motherboard, nothing ...
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0answers
20 views

How to power off discrete graphics card

I installed Lubuntu 16.04 to my HP Pavilion dv6 laptop which has AMD 6770M discrete graphics card. In order to save battery I want to power off AMD card since onboard Intel HD3000 is enough for me. I ...
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0answers
15 views

Ubuntu 14.04 doesn't recognize Nvidia Gpu

I installed GPU driver by sudo apt-get install nvidia-352. The system recognizes GPU as a "3D controller" and I can't find /dev/nvidia* or /proc/driver/nvidia/. 04:00.0 3D controller: NVIDIA ...
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2answers
4k views

Can't use nvidia GPU optimization (libcublas.so)

I have a Nvidia 750Ti on a dedicated server I'm trying to install cuda in order to use GPU optimization in Theano. I did several cuda 7 installations (on ubuntu server x86_64 12.04, ubuntu server ...
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0answers
27 views

TensorFlow GPU installation

While installing cuda 7.5 from [NVIDIA developer] (https://developer.nvidia.com/cuda-downloads) on my ubuntu 14.04 instance on google cloud, I am encountering the following error: Installing the ...
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0answers
20 views

Overclock multiple Nvidia GPU in Ubuntu

I have two NVIDIA 750ti GPUs connected to my machine, driver 340.29. Currently I am using Nviida X Server settings with coolbits to overclock one of them. However there are no options to overclock the ...
3
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1answer
36 views

setting the default gpu

I have two gpus on my machine: $ lspci | grep VGA 01:00.0 VGA compatible controller: NVIDIA Corporation GM200 [GeForce GTX 980 Ti] (rev a1) 03:00.0 VGA compatible controller: NVIDIA Corporation GF108 ...
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1answer
39 views

how to find the path for libcudart.so?

I'm trying to install Tensorflow GPU version and I'm stuck at this. I've installed nvidia-cuda-toolkit by running sudo apt install nvidia-cuda-toolkit and it downloaded fine. But i'm unable to ...
0
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1answer
114 views

Ubuntu 14.04 GPU passthrough problem with IOMMU

I have a problem with my GPU passthrough on Ubuntu 14.04, i checked my hard ware and my CPU is i7-2600 which supports VT-x in KVM and i try to passthrough my GTX 960. I did everything exactly as in ...
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0answers
25 views

Can I run virtual machines with CUDA GPU?

Is it possible? I have nVidia CUDA GT555M 2GB and I'd like to have its power in guest OSs (mainly Windows, for games). I found few topics or questions about this, but they were kinda old, so I'm not ...
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2answers
142 views

AMD Radeon HD 5450 GPU Drivers? (16.04)

I have a Radeon HD 5450 GPU It has support to up to 15.04 I have Ubuntu 16.04 Will 15.04 drivers work for me? Or are there some drivers for 16.04? Later Addon: i just want to play dota, it will not ...
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1answer
22 views

two gpu two x session, move mouse from one x server to the other

and xinerama sucks.. So I thought I might use two x servers.. but I do not understand how I move the mouse courser from one screen to the other. Thanks.
0
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1answer
864 views

Can I enable crossfire on Ubuntu 14.04?

How can I enable crossfire mode on Ubuntu 14? Graphics: 2 x AMD Radeon HD7790. Mainboard ASUS P5KC. OS: KUbuntu 14.04 x64. aticonfig reports: aticonfig --lscs Candidate Combination: ...
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3answers
36k views

How to find out what graphics driver is installed?

I installed Xubuntu 13.04 two months ago. But I don't know to find out which driver is installed for my GPU ( I mean graphic card driver ) or is it installed? I'm feeling something is wrong with my pc ...
0
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0answers
28 views

Select a low performance gpu Readeon HD 7640G + HD 7470M on 16.04 for cooler

I using 16.04lts. In 14.04lts I can use 'sudo amdcccle' to switch it. But 16.04 can not to do like that. It is so important because high performance gpu make my notebook very hot. Thank you. $ ...
5
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2answers
407 views

Dual GPU NVIDIA 940m + Intel Sky Lake

I'm running 14.04 on an ASUS UX303UB which features that ever so troublesome dual GPU thingy, with 'Sky Lake Integrated Graphics' for discrete graphics and 'GM108M [GeForce 940M]' for performance ...
0
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1answer
73 views

Issues with QEMU GPU passthrough on ubuntu 14.04 LTS

I am following a tutorial on how to run a VM that can use my GPU and I have run into a problem. Here are links to the tutorials https://www.youtube.com/watch?v=w-hOr44oBAI https://www.pugetsystems....
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0answers
22 views

Boot Ubuntu on a specific GPU in a multi-GPU environment (no laptop)

My home computer has a Radeon HD6970 plus a Geforce GT 740 video card. I use the more powerful Radeon under Windows for gaming, while the Geforce is there for some OpenCL and Vulkan stuff I plan to ...
0
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0answers
26 views

GPU plus default graphics card - ubuntu X desktop does not start

situation is as follows I have a server with a matrox GMA200, I installed a titan X, then: sudo service lightdm stop installed nvidia drivers created xorg.conf ... forced display to run with the old ...
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0answers
15 views

GPU vram extended with system ram

Is it possible to virtually increase the usable GPU memory RAM through the system RAM or an SSD? Background of the question is a program that requires a bigger than available GPU RAM.
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1answer
226 views

Virtual GPU for Ubuntu 16.04 Clients on VirtualBox

Assuming the host OS has a GPU, can anybody tell me if Ubuntu 16.04 clients run using VirtualBox will be able to make use of the GPU through virtualization? I read that GPU virtualization is only ...
0
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2answers
521 views

gpu-manager overwrites xorg.conf

I have recently installed the NVIDIA drivers on my Xubuntu 15.10 machine but I had to remove them due to improper multi-monitor setup. Everything went fine, except for the fact that gpu-manager seems ...
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0answers
30 views

How can I make a program go fullscreen and use the whole gpu

I have an android virtual machine (using Genymotion which works on top of virtual box). I get frame drops because I have lots of programs open. I press F11 to go fullscreen but it's no difference. I ...
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0answers
47 views

Set up CUDA 6.5 on Xenial for a GT240 GPU

I am having a difficult time trying to figure out which packages to install for the Nvidia CUDA toolkit on the latest Ubuntu 16.04 distro that work with my old GT240 card. I know that the latest ...
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0answers
41 views

Driver conflict nvidia/Xorg

sorry for my english and my newbie in ubuntu i'm running on gnome-ubuntu 16.04LTS, i have Nvidia 9500gt with proprietary drivers installed , the problem when i plug out the gpu it won't boot into a ...
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0answers
168 views

Ubuntu 15.04 AMD APP SDK OpenCL

I'm working on Dell 7520 Inspiron with AMD 7730M GPU with 512 stream processors and 2GB RAM and I want to compute on this GPU using OpenCL. I have AMD catalyst installed via Ubuntu Additional drivers,...
2
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0answers
287 views

How disable the integraded GPU (Intel HD 4000) and only use the discrete GPU (AMD Radeon HD 8870M) on Ubuntu 16.04?

Is there a way to disable my integrated GPU (Intel HD 4000) and only use the dedicated GPU (AMD Radeon HD 8870M aka R9 M270X and M370X)? This used to be possible through the proprietary drivers (...
1
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1answer
126 views

why is ubuntu incorrectly detecting my graphics card?

So in my ubuntu I was using the latest mesa drivers from the ppa. I also had the amdgpu and radeon xorg drivers installed. I was running a 16.04 gnome version of ubuntu. Maybe I am reading the ...
0
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1answer
55 views

Nvidia-361 GPU installation continual rebooting

I've got Ubuntu 15.10 installed on a new Asus Z170-AR motherboard. I've also got a Nvidia GTX 980 ti I'm trying to get working with it. I purgeed all Nvidia packages, and followed the instructions ...
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2answers
47k views

How to measure GPU usage?

Using the top command in the terminal lists processes, sorted by their CPU usage (and you can change it to sort by another parameter) Is there an equivalent for the GPU? This fellow is asking about ...
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0answers
84 views

nvidia-smi hangs. cannot be killed even by SIGKILL

I just finished carefully installing the latest nvidia drive to an new amazon g2.2xlarge ec2 instance which I would like to use to do some machine learning. Before install cuda and other packages, I ...
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0answers
96 views

How to choose to use AMD gpu instead of intel graphics - ubuntu 15.10

I have xubuntu 15.10 and I would like to know how to run a program ex. minecraft with my amd r7 m265 gpu instead of cpu graphics. Thanks!
2
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0answers
155 views

How to install AMD Radeon HD 6290 proprietary drivers in Ubuntu 15.10

I have been at this for days now. I have followed every guide that I can find. Purging and re-purging to get a clean start to try to reinstall once more but ultimately nothing has worked. I have tried ...
0
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1answer
245 views

The AMD fglrx driver doesn't see GPU cores in AMD APU A8-7600

I wanted to play with APU meaning to learn OpenCL and other GPGPU tricks, so I've installed the AMD APP SDK Ver 3.0 (which implements OpenCL 2.0) on my PC. This SDK documentation says I need to ...
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1answer
845 views

Ubuntu 16.04 ATI Radeon HD 5450 Graphics Support [closed]

In 16.04 LTS support for AMD proprietary drivers has been dropped. Instead there's an open source AMDGPU driver. My Question: Will the ATI Radeon HD 5450 work with the open source AMDGPU driver?
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0answers
53 views

Should blacklisted video card still show up in additional drivers?

I'm trying to get GPU passthrough working on Ubuntu, but I'm still getting no video output from the booted VM. I noticed, despite blacklisting the card and having it claimed by stuff, it still shows ...
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0answers
32 views

Ubuntu thinks my amd R7 250 is an R9 m360

I recently installed Ubuntu 14.04 on my newly built computer. My computer has an amd R7 250 GPU, but according to both the system details and amd catalyst I have an R9 m360. Is there any way to fix ...
0
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0answers
39 views

Graphics issue on Ubuntu 15.10 with Intel Q45/GMA4500

Currently, I have installed Ubuntu 15.10 on my Dell OptiPlex 960 MT machine with a Q6600 Intel CPU. I previously had Windows 10, but removed it because it had poor support for the Intel Q45/GMA4500. ...
4
votes
4answers
3k views

How to find out which NVIDIA GPU I have

I'm trying to use the information in this page to optimize my GPU performance. For that, I need to know which NVIDIA GPU I have. I tried the command sudo lshw -C display and I'm getting the ...
0
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1answer
239 views

OpenCL doesn't detect GPU

I installed AMD APP SDK and here my problem. The OpenCL samples do not detect the GPU. HelloWorld give me this: [thomas@Clemence:/opt/AMDAPP/samples/opencl/bin/x86_64]$ ./HelloWorld No GPU device ...
0
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2answers
98 views

Ubuntu lagging a lot in my laptop

I just installed Ubuntu on my PC, but it lags a lot. My pc runs all other OS at high speed, only Ubuntu is really slow. System specifications: Lenovo y_40 8 GB RAM 500 GB HDD Intel® Core™ i7-4510U ...
5
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2answers
7k views

external GPU system in Linux?

Has anybody got any idea what would be needed to have a working external GPU system (eGPU) under Linux? I've just seen this post of a DIY eGPU system: http://forum.tabletpcreview.com/hardware/40268-...
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1answer
187 views

How to update additional driver (Nvidia GPU and CPU)

Firstly i want my drivers up to date. So can you help me about that? And 1 more question, at CPU title we have 2 options like microwaves and do not use device. Which one i must use? I use that right ...
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0answers
200 views

Radeon HD8990, Ubuntu 14.04LTS, OpenCL not working after AMD SDK 3.0 install

Found some leads at this Q/A: Radeon HD 7990 in Ubuntu 12.04 and above I have a Gigabyte 990FXA-UD3, a 256GB SSD, the HD8990 (basically a 7990), DVI-VGA adapter to monitor. Power is good, IOMMU is ...
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0answers
150 views

Which drivers should I use on 16.04 with AMD HD 6490?

16.04 is coming and my GPU is no longer supported with new proprietary drivers. Even on 15.10 it was not supported with new fglrx driver, but it was fixed by patching fglrx with a wrapper. To further ...
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0answers
172 views

How can I free my GPU memory in Ubuntu 14.04?

How can I free my gpu memory as much as possible? Currently there seems 400+ MB of GPU ram to be always occupied! How can I free these ? Wed Feb 24 21:48:33 2016 +---------------------------...
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2answers
55 views

How to find GPU size in Ubuntu 14.04

I found my GPU, by lspci | grep VGA and found it to be 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Oland XT [Radeon HD 8670 / R7 250] I couldn't find my GPU size. Can ...
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2answers
219 views

Purple Screen on Boot NVIDIA 960 and no acces to recovery mode

So I have a 960 GPU and a 650 GPU, my 650 works pretty well on ubuntu 14, and I've been trying to install my 960 the problem is that even tho I installed the drivers from the official site I can't get ...
0
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1answer
73 views

nVidia GPU is not detected

My nVidia GPU (GTX650-DC) can't be detected by my computer(OS is Ubuntu 14.04). I've searched for related discussion(Ubuntu 14.04 couldn't detect nvidia graphic card (not even detect the model of ...