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Questions tagged [graphics]

graphics is used for questions that are related to graphics mode (tty) as well as graphic cards and their drivers. Please note that there are a few specific tags (like intel-graphics, amd-graphics available that should be used instead when applicable). X11 related issues have their own tag: x11, as do GUI related questions: gui)

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0answers
74 views

X screen capture strobing three or four frames instead of working as expected

I've been trying to do some screen recording of my DE and I've encountered a very strange problem. Basically, any screen recording utility I use will capture a few frames and simply strobe between ...
5
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3answers
3k views

After update GLX works only for root (nvidia)

Today i did update and glx stopped working for non-root users: $ glxinfo name of display: :0 X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode of ...
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0answers
3k views

libGL error: No matching fbConfigs or visuals found over ssh

I am trying to run tflearn (debian 8) When I run that code locally , it runs fine (its shows the windows). But when I do ssh , I get errors. Note that I am able to open other gui applications over ...
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1answer
124 views

How to specify the display manager of a new session launched from tty?

When prompting startx from tty, the graphical display start but without any display manager but have a xterm from which my display manager have to be launched. How can I directly launch a session ...
2
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0answers
864 views

Why is text mode scrolling slow?

In any text mode, from the GRUB menu loading, through booting, and also in any VT other than the one where X is running, text scrolling is abysmally slow (several seconds for a dense screenful of text)...
1
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1answer
275 views

Low Graphics Mode and Bizarre Terminal Output

I just reorganized my rack and when I plugged my Dell PowerEdge R510 running 16.04 back in and turned it on, a number of very strange things happened. The first few times that I tried to boot, it ...
5
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1answer
3k views

GLX doesn't work using xvfb-run

I'm on Ubuntu 14.04, and using it through ssh, which means I don't have local GUI for it. I need to run some command that requires GLX, but things aren't going well. Xvfb :80 -screen 0 1400x900x24 -...
2
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0answers
432 views

OpenCL not detecting AMD graphics card as a device

I am running CentOS 6. My OpenCL program is not detecting my graphics card as an option and is instead just running on my CPU. My program attempts to find and use the fastest device, but is only ...
1
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0answers
193 views

What is going on in my laptop?

I have a laptop with two gpus (Intel HD4600, Nvidia GTX850M) that's running Ubuntu together with Windows 10 (has no issues) using GRUB. I have installed nvidia-355 and i have not installed bumblebee ...
0
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1answer
1k views

Centos 7 isn't using my dedicated graphics card

I recently purchased a thinkpad p50s and decided to put centos on, but now the computer is not using the dedicated nvidia card. How can I fix this?
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2answers
1k views

Cant display multiple monitors after installing driver for Geforce 970

I am trying to add extend my desktop across multiple monitors, but when I go into Display it only shows one monitor (my Nvidia 970 with 640x480 resolution). However when I do inxi -Gx I see both ...
1
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1answer
535 views

System freezes completely while using HDMI

I installed Ubuntu 16.04 on an ASUS Z450LA laptop with Intel HD5500 graphics (no dedicated graphics card) and am using MATE as my desktop environment. I had to rebuild the kernel with this patch to ...
1
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1answer
6k views

RX 480 AMDGPU Driver Failing To Load On Debian Sid

I recently built a PC with an RX480 and installed the open source AMDGPU driver stack according to this guide. The only step I did not follow exactly was the kernel compilation-- I simply downloaded ...
5
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1answer
2k views

Display sleep: “sleep” graphics card?

I often run simulations or other processes on my desktop for hours or days where I don't touch the machine. During this time, I'd like the display to sleep and I want the discrete graphics card to ...
4
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1answer
636 views

tty and grub boot unreadable with nvidia K1100M on zbook 15 g2 with intel

I have a zbook 15 g2 workstation with intel HD 4000 discrete card and a NVidia GK107GLM [Quadro K1100M]. I am running Archlinux uname -a Linux zbookarch 4.7.1-1-ARCH #1 SMP PREEMPT Wed Aug 17 08:13:...
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0answers
126 views

How to set framebuffer's output?

I'm using linux (4.4) and Nvidia proprietary driver (361). A also have two monitors (one VGA, one HDMI). By default (during BIOS stage of booting) the image is displayed only on VGA output. After BIOS ...
0
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1answer
1k views

Ubuntu Server stopped running in higher resolution

Steps I have done: Installed Ubuntu Server 16.04.1 in VMware Workstation 12 Edited /etc/default/grub to contain GRUB_GFXMODE=1440x900 GRUB_GFXPAYLOAD_LINUX=keep Run sudo update-grub Rebooted; ...
1
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0answers
703 views

eGPU Setup on Deepin 15.2 (Ubuntu Based)

I have an eGPU setup of nVidia GT710 via Express Card. When linux boots up my main laptop screen works but the secondary screen doesn't work. I am using opensource drivers as both cards require ...
1
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0answers
280 views

FreeBSD display resolution under Veertu

I'm trying to set up FreeBSD 10.3 under Veertu. When starting X, the largest resolution I can get is 1280x720 (well, I can select 1280x768, but then I have to scroll). My actual screen is much bigger ...
2
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2answers
1k views

notify-send from root cron

On my system, notify-send requires 3 enviorment variables to run, which are kept in a file which is generated automatically on logon: /home/anmol/.env_vars: DBUS_SESSION_BUS_ADDRESS=unix:abstract=/...
4
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2answers
6k views

How to Setup Triple Monitors with Kali Linux?

I installed Kali Linux 2 on my laptop and need to configure a triple monitor setup with it. At the moment, I have a Belkin Dual DVI docking station and a Startech DVI to USB 3 converter. On Windows 7, ...
0
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1answer
193 views

Find the video card information on the command line

I am trying to find the basic information (name, version) of the video driver(s) (which graphic cards are present) on a Linux machine (version 2.6.9). I've tried these commands: lspci lshw glxinfo | ...
1
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0answers
175 views

Current display mode

Under the sysfs drm module I can obtain all available modes for a particular connector at /sys/class/drm/card0-*/modes. Is it possible or even logical to request the current state the card is in? All ...
0
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1answer
612 views

How can I install the proper GPU driver for radeon 5450 on Debian Jessie?

I have a monitor that supports 2560x1080. While I have a Radeon 5450 graphic card, running Debian Jessie, I only can get 1920x1080. I installed firmware-linux-nonfree to get it running. Why isn't my ...
1
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0answers
166 views

intel cpu not showing up as VGA compatible controller

I am trying to set up a virtual machine with gfx_passthru. My system has an nvidia graphics card and a 4790k cpu. The nvidia cpu shows up properly as a VGA controller, but I don't want to use this to ...
3
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0answers
130 views

I have three monitors, two of them mirror each other and the last is blank

I have a triple monitor setup. I know all three monitors work and are plugged in. However on Fedora 23 my primary and secondary monitors mirror each other and my third monitor just on sleep and doesn'...
1
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1answer
1k views

Hardware accelaration on integrated Intel 5500 graphics and Debian result in unstable system

I have difficulty getting hardware accelaration to work properly with my integrated Intel 5500 graphics even with the use of newer drivers. I'm using a stable version of Debian 8 / Jessie (with the ...
0
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1answer
528 views

Best Graphics over X11 Forwarding

I am currently using Exceed to handle individual X windows being displayed back to my Windows machine and this works flawlessly. I'm using Windows as my Window manager, but I have also experimented ...
0
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1answer
712 views

Gnome 3.20 graphical glitches when switching applications

Today, I upgraded from Gnome 3.18 to 3.20 and started experiencing some strange graphical issues when changing focus from one application to another, either by alt-tab or clicking the new window with ...
3
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1answer
972 views

What would cause my video driver to stop working after every update?

I am not sure if this is a systemd issue (like order of loading modules) or a video driver issue. It does seem like every time I update boot-related stuff from a chrooted environment using my Arch ...
1
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0answers
363 views

How can I make nvidia packages work on Mint 17.3

I'm writing this after days of search and incomprehensions. I already tried asking my question on the Mint forums but I've got no help yet and I prefer asking for more advices, that could lead to a ...
2
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0answers
55 views

display tty1 on one monitor and display tty2 on second monitor (usb terminal) [duplicate]

I have Debian 7 in console only mode; is there a way I can display different programs on 2 monitors? example: Screen one is the primary screen and this is to display my PoS application Screen two is ...
1
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0answers
441 views

Eclipse blurs text when scroll bar is used

In the Eclipse text editor, when I click and drag the horizontal scrollbar, the screen does not "refresh" or "update" properly, resulting in a blurry image. This behavior has not been observed in any ...
0
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1answer
408 views

Slackware current and Radeon HD 6450: on OpenGL

I've upgraded to Slackware current (from 14.1) and everything works perfectly fine, except for OpenGL. Fglrx 15.302 doesn't compile against the running kernel (4.4.5) so I decided to stick with the ...
0
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0answers
217 views

Linux kernel 4.3 has issue with GPU/graphics hardware

I updated to linux kernel 4.3 on Debian Jessie via backports, i.e. apt-get -t jessie-backports install linux-image-686-pae on my 32Bit laptop with physical address extension and now, after booting, ...
3
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0answers
566 views

Dual-monitor problem NVIDIA, screens flickering (turning on/off)

I switched to NVIDIA drivers in Linux Mint 17.3 Cinnamon via Driver Manager in order to be able to play games. I am on NVIDIA 750M. The problem is, when I try to connect the second screen via ...
1
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0answers
151 views

Enable/disable display using libdrm

I want to know if it's possible to turn on/turn off the display using some function of DRM.
2
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1answer
422 views

Configure 3 screens/dual graphic/rotated screens Ubuntu 15.10

I have a PC with 2x AMD Radeon R5 230 graphics cards, one with 2x 1920x1080 screens plugged (HTMI and DVI) and another with 1x 1920x1080 screen (HDMI). I have the two screens in the first graphics ...
0
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1answer
1k views

How to activate v-sync with nvidia linux driver?

Hello I have archlinux with xfce4 installed and I'm wondering how to activate v-sync cause when I move windows around it's tearing up and disgusting. I augmented the refresh rate to 144hz and it ...
1
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0answers
276 views

Reduce CPU wakeups by cinnamon and i915

In order to reduce my notebook's power consumption I am using PowerTOP 2.5. hardware: Thinkpad W540 os: Linux Mint 17.3 Rosa kernel: 3.16.0-38-generic I noticed that cinnamon and i915 are the ...
2
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0answers
1k views

Monitor auto-detect Ubuntu

I am currently running Ubuntu 15.04 on my desktop machine with two monitors attached. One monitor is NOT directly connected to my machine but wired through a HDMI-switch (so I can connect my PS4 or ...
2
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2answers
498 views

How does bash print to the screen if not with a framebuffer? [duplicate]

I noticed that a framebuffer doesn't always exist on some systems. In these cases, how does bash print to the screen (assuming it ever uses fb devices at all)? Since there's no framebuffer device, ...
4
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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 ...
2
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2answers
3k views

Graphics glitches on Intel HD Graphics 530

What's the cause of these glitches: https://youtu.be/llS6JwZAT74 ? The horizontal lines appear on screen redraw. They happen most often on Alt-Tab, or switching to desktop (as in the video). The ...
0
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1answer
275 views

Is framebuffer/vbe resolution a property of monitor or graphics hardware?

I have an AMD Radeon HD 4650 Graphics hardware, and a LCD monitor with an odd native resolution of 1440x900. I use debian stable on this system. When not using the firmware-linux-nonfree package, ...
17
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6answers
34k views

Xlib: extension “GLX” missing - with an NVIDIA card and on-board graphics

I have a machine with an NVIDIA GeForce which I don't use for display purposes (i.e. the monitor is not connected to it), and some lackluster on-board graphics chip. (Below you'll find the relevant ...
2
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1answer
98 views

Heavy Load crashes user started processes on Linux mint

I have a old laptop, with a old Pentium dual core at (I think) 2.3 ghz, running Linux mint 17.3 --- Mate When the laptop gets a heavy load such as video decoding it can just freeze for a few seconds ...
0
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1answer
1k views

Which is the best Linux Distro for Graphics Programming [closed]

I am about to start developing software for computer graphics primarily involving Virtual Reality software (using WebGL/OpenGL, Unity, etc.). Currently I'm unable to even run WebGL programs in any ...
4
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2answers
3k views

Do all intel gpu's use software rendering (Mesa) only?

I was looking at :- $ glxinfo | grep OpenGL OpenGL vendor string: Intel Open Source Technology Center OpenGL renderer string: Mesa DRI Intel(R) Haswell Mobile OpenGL core profile version string: 3.3 ...
1
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1answer
381 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 ...