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

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3
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0answers
2k views

Laptop screen goes black, but laptop still running

I have an old Asus laptop with Ubuntu 14.04 LTS. Sometimes the laptop's screen goes black, but the laptop keeps running. It happens when loading a youtube video or websites like GDrive, but not all ...
3
votes
0answers
293 views

Can I use Ubuntu VDI to run GPU intensive Windows video games?

I have a bunch of kids (5), and a bunch of laptops (total of 7 including mom & dads). My video games (Civ V, Xcom) run pretty slow on our laptops (AMD A quad core, 8GB RAM, 512 MB onboard ATI 512 ...
2
votes
0answers
95 views

Use Integrated Inted HD 4600 for X server and dedicated Nvidia GTX 970 for CUDA

I have a brand new computer and I am planning on installing Ubuntu 14.04 LTS on it. I will use it for calculations that is why it has the Cuda-enabled Nvidia GTX 970 GPU. I'd like to have this GPU ...
2
votes
0answers
553 views

Can AMD A-Series APU support OpenCL?

Have spent a lot of time on this one one but can't find an answer here. Ubuntu 14.10 clean install. AMD A10-7700K APU with Radeon(TM) R7 Graphics x4. 1) Started with the xserver open-source wrapper ...
2
votes
0answers
99 views

Title bar graphic mangled on nvidia hybrid graphic system

I'm using ubuntu 13.10 and I'm currently having problems with the title bar on every window I open it looks really bad, here's a pic. Thanks in advance . The ubuntu version is 13.10 64-bit, the ...
2
votes
0answers
409 views

Use Intel HD graphics for X server and left nvidia for GPU computation

I have a computer running an intel CPU (with hd graphics) and a nvidia geforce display card. Since I just need the GPU for CUDA/OpenCL computation, I want to config the computer to use intel hd ...
2
votes
0answers
185 views

GPU under constant 25-30% load

Currently on a fresh install of 12.10 with Unity and the newest AMD 13.3 beta 3 catalyst driver. But even when on the desktop with no programs open it seems to be idling at 25-30% GPU usage and ...
2
votes
0answers
430 views

How can I make my onboard HDMI to work with my GPU?

I want to use my TV as a second monitor through HDMI in the motherboard, while use my main monitor through my graphics card since my motherboard is the only one who allows it. Ubuntu won't detect my ...
2
votes
0answers
1k views

AMD Driver not working on Ubuntu 12.04

I've just updated Ubuntu to latest version using Update Manager. It upgraded my kernel to 3.2.0-30. As always after installing new kernel I've reinstalled GPU drivers but with no success. AMD Driver ...
1
vote
0answers
135 views

New USB-C / Thunderbolt C features

A lot of new systems are going to be coming out with USB-C / Thunderbolt which allows you to use pci-e bus over it. Specifically using an external GPU over USB-C, for example the Razer Blade Stealth ...
1
vote
0answers
49 views

Does compiz use hardware acceleration by default?

How do I find out if Compiz is using my graphics card? If it's disabled how do I enable it?
1
vote
0answers
35 views

Ubuntu not compatible with my custom built desktop

I custom built a desktop PC today, and I'd like to run ubuntu 15.10 on it. It boots up, then right when I start to see unity desktop, I get a white, unresponsive screen (no mouse showing or anything). ...
1
vote
0answers
26 views

Possible override for black screen after changing the gpu?

I recently installed Ubuntu as I need to learn Fortran. Meanwhile I bought new GPU - r7 370. When I installed it into motherboard and started Ubuntu I was greeted with black screen, I think that ...
1
vote
0answers
20 views

Find GPU resource allocation on virtual server

I have been provided a virtual server, which runs Ubuntu 14.04. I'm accessing it using PuTTY. The server should have a NVIDIA GRID K2 GPU, but I'm having some issues using it in Python/C++ with the ...
1
vote
0answers
39 views

2 GPUs: 1 for monitor 1 for CUDA

I have 2 GPUs (NVIDIA QUADRO 600 and QUADRO 2000) on a Ubuntu 15.10, I am trying to set up the system so I can use the Q2000 for CUDA code while the Q600 takes care of the monitor. However I am only ...
1
vote
0answers
72 views

Ubuntu, How to Enable Forced GPU on HP Pavilion

I recently installed Ubuntu MATE on an HP Pavilion dv6 (XG759UA#ABA) to be a dedicated Minecraft machine. MATE works perfectly, but Minecraft insists upon using integrated graphics instead of the GPU. ...
1
vote
0answers
23 views

Is a flickery screen bad?

I am running 14.04 with the 4.3 kernel (recently updated due to driver issues) and I've noticed a lot of flickery screen things going on. Usually when I scroll or when things update quickly I get a ...
1
vote
0answers
249 views

how can I get ubuntu 15.04 to boot up with my Nvidia geforce 960 GPU

So I've recently installed Ubuntu as a secondary operating system on my computer alongside windows 8.1, and I've discovered that it refuses to boot up with my Nvidia 960 GPU installed. I've repeatedly ...
1
vote
0answers
105 views

NVIDIA GeForce GT 240M running hot on Kubuntu 64bit

I'm using a Packard Bell - EasyNote TJ65 (64bit Core) with a NVIDIA GeForce GT 240M. I know my computer is not the newest nor fastest model but until now I never had Problems running Linux Kubuntu ...
1
vote
0answers
29 views

Interface delay with NVIDIA driver

I am experiencing a strange bug with a new installation of Ubuntu 14.10. It looks like I/O events are processed with a delay. That is, every event from either the mouse or the keyboard (both USB) ...
1
vote
0answers
45 views

Cannot boot into GUI

Cannot boot into GUI at all. Was working for awhile but I think something happened awhile back, when I plugged my TV into the HDMI port on my laptop. After trying a ton of solutions like ...
1
vote
0answers
83 views

Chrubuntu 12.04 Desktop Won't Load

I'm on a Lenovo X131e Chromebook. Upon start up I am able to move the mouse pointer around a black screen with a blinking text cursor in the top corner. If I switch to a terminal and then try to ...
1
vote
0answers
23 views

Screen Garbled When Trying To Install

I'm new to Ubuntu. I'm trying to install on an HP TouchSmart 320 PC with an integrated AMD Radeon HD 6410 gpu. First I get a purple screen with Ubuntu in the middle but then it goes ...
1
vote
0answers
157 views

Ubuntu Hybrid Graphics automatic switch

My notebook have an integrated gpu (intel HD) and a discrete gpu (AMD Radeon 8850M). Looking into the ubuntu documantaion here https://help.ubuntu.com/community/HybridGraphics I tried using ...
1
vote
0answers
213 views

problems installing gpu driver

after running the installation of the driver i get an error that i need to install some prerequisites found in the fglrx-install.log file and there i found this NOTE: If your system has logged the ...
1
vote
0answers
342 views

Detected a hung GPU, disabling acceleration

on lubutnu 14.04 im getting a gpu hang on lubuntu and when i checked the system log it said [ 2303.921] (EE) intel(0): Detected a hung GPU, disabling acceleration. [ 2303.922] (EE) intel(0): When ...
1
vote
0answers
396 views

Ubuntu 14.04 Switchable Graphics ATI Lenovo G510

Sorry if my question sound stupid, but I'm not very clever with linux yet I'm facing well known problem around here namely switchableGraphics. In --here-- you can find information that in linux ...
1
vote
0answers
217 views

Hardware acceleration in video playback

I have ubuntu system with amd apu a6 llano. when I play hd videos on ubuntu using vlc or some other media player it takes so much cpu usage but when I play same video on windows 7 it takes just 5% cpu ...
1
vote
0answers
74 views

dual GPUs? Both ATI and NVidia

I'd like to install both an NVidia GPU and an ATI GPU. Since I'm using OpenCL, I need the proprietary drivers for each. I've had troubles updrading to proprietary drivers and doing it successfully ...
1
vote
0answers
216 views

Is the Radeon HD 7790 supported in Ubuntu?

I have an MSI Radeon HD 7790 graphics card and I cannot figure out whether it's supported in Ubuntu or not, and to what extent (2D, 3D accel., VDPAU, etc). I tried asking on a few forums but got ...
1
vote
0answers
159 views

Cannot install on computer with multiple GPUs?

Background. I got a problem installing (K)ubuntu yesterday. It started well with the Kubuntu 13.04 installer recognizing my 3 screens out of the box for the splash screen: pic1. However, after that, ...
1
vote
0answers
911 views

ATI Hybrid Graphics Over Heat. Intel GPU not working!

I just followed this guide (http://ubuntuforums.org/showthread.php?t=1930450) and installed the proprietary ATI drivers on my laptop which have ATI Hybrid Graphics (ATI Radeon HD 6770 M GPU). It ...
1
vote
0answers
977 views

Lowering GPU temperature on Radeon 6850 with open source driver

I read and tried this and it doesn't work for me! when I type echo "mid" > /sys/class/drm/card0/device/power_profile I see what this value really changed (needs the chmod was applied before, ...
0
votes
0answers
9 views

Dual monitors problem GPU & IGP

So i recently installed Linux Ubuntu on my computer where i previously had Windows 10. I have 2 monitors connected with my computer, one is connected to my Nvidia gpu and the other is connected to my ...
0
votes
0answers
17 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
votes
0answers
5 views

setting (or changing) GPU timeout on ubuntu

If a WebGLSL shader is way too long to compile and execute on http://shadertoy.com/ , I totally loose the control of X and linux (I cannot even switch to the console). Only the mouse move, nothing ...
0
votes
0answers
6 views

Dual GPUs slower than single one, in Ubuntu 14.04

I have two GTX Titan Z gpus. However, I found that if I plugin both of them to my computer, the Ubuntu system runs much much slower than only plugin only one card. I am wondering whether there needs ...
0
votes
0answers
13 views

How do I assign differnt number of cores/threads to an user group

I have a server machine having two GPU (512 cuda cores each) and Dual Quad Core Processors having 16 Number of Threads. The system is using Ubuntu Desktop edition 14.04. I want to assign an ...
0
votes
0answers
41 views

Why is my screen choppy when I play HD videos?

I am using Xubuntu 14.04 on an ASUS X55V(i3 CPU and Nvidia 610m GPU). I installed the recommended proprietary driven in the GUI (352.63). I installed Nvidia Settings, too, and it lets me choose if I ...
0
votes
0answers
51 views

Fix GPU-manager/Graphics card related error

On running the follwing command I get the following output: user@Enigma:~$ sudo systemctl status gpu-manager.service ● gpu-manager.service - Detect the available GPUs and deal with any system ...
0
votes
0answers
14 views

Changing Shared Memory in Ubuntu

So I just received my i7-4790k and installed it into a MSI z97 Gaming 5 motherboard. However, the shared memory is restricted to 512MB, and it seems to be possible to increase the amount in Windows, ...
0
votes
0answers
63 views

How can I update the driver for my Sapphire Nitro 4Gb R9 380x GPU?

I just built my first computer from scratch and updating drivers on Ubuntu is not as simple as Windows. I've installed Wine in an attempt to run the .exe off the product website to update the driver ...
0
votes
0answers
127 views

Multi monitor setup with Intel iGPU and dedicated NVIDIA card (desktop)

So I haven't found any post with a clear answer to this question. Is it possible to run both the HD4000 graphics on a 3770K and a GTX 980TI at the same time? I'm primarily a Windows user trying to ...
0
votes
0answers
47 views

Install CUDA 6.5 on Trusty Tahr without upgrading to `nvidia-352`

I am trying to install CUDA 6.5 on Trusty Tahr 14.04.3 using sudo dpkg -i cuda-repo-ubuntu1404_6.5-14_amd64.deb sudo apt-get update sudo apt-get install cuda-6-5 Unfortunately, the nvidia-352 ...
0
votes
0answers
36 views

Google chrome consumes too much Vram

Recently I enabled chrome gup acceleration. ...generally I'm a really heavy google chrome user. I open up a really huge number of tabs. Now Google Chrome consumes my vram and I experience drastic ...
0
votes
0answers
56 views

How to control a Case Fan-header according to video card tempreatures?

I have a free 4-pin Case Fan-header on my motherboard and I want to add additional cooling for my video card. There is a free space for a case fan in local proximity to the PCIe-slots, which I would ...
0
votes
0answers
30 views

GPU information location

I am trying to find out how to add information to GPU information output. I use this command: lspci | grep VGA to get the GPU info. Where does this command pull its information from? I want to edit ...
0
votes
0answers
151 views

Screen tearing in videos on Ubuntu 15.04 with Nvidia GeForce GT 630M

My Ubuntu 15.04 shows a lot of Screen Tearing during vídeo, mainly when is in HTML5, and I already have tried the "TearFree" command for the GPU but with no results, I hope get the right fix for this ...
0
votes
0answers
55 views

How to use GPU for OpenCL from command line remote login

I use OpenCL accelerated math on my workstation which I can only access remotely via command line from Windows. I have no desire to have a VNC desktop or tunnel X through ssh. When I am not logged in ...
0
votes
0answers
44 views

Login loop after removing dedicated gpu

I'm dual booting windows 10 and Ubuntu 14.04 LTS, and I have a gtx760 with the proprietary drivers installed in Ubuntu. The problem is when I remove the dedicated gpu and try to login with the intel ...