The tag has no wiki summary.

learn more… | top users | synonyms

0
votes
0answers
23 views

Bad resolution (max 1024x768) ElementaryOS (Ubuntu)

I installed Ubuntu (Elementary OS) a week ago and the resolution was always max 1024x768, but I want 1920x1080. I have searched in the internet for solutions, but I didn't find working ones. I tried ...
1
vote
0answers
39 views

Monitor shown as 16:10 instead of 16:9

I am using Linux Mint 17.1 Cinnamon on a Dell Latitude E6540 with a Dell U2713hm monitor, the displays are not mirrored, and arranged next to each other. The monitor has an aspect ratio of 16:9, ...
0
votes
0answers
32 views

Best way to connect to all X displays

In a C or C++ program, what is the best way to connect to all X displays on a computer? I would like to check the X idle time of each display, to determine whether the computer is idle across all ...
0
votes
0answers
25 views

GPU Memory Consumption when acting as graphics driver

I wonder what factors contribute to memory consumption of a GPU card that is used solely for graphics (say, with Ubuntu linux desktop). I assume the connected displays combined resolution, times pixel ...
0
votes
0answers
60 views

Do high DPI screens play nicely with tiling wm's?

I'm currently on a 15' laptop which has a moderate resolution (1920 x 1080). The other day, I spent some time with a friend who owned a Macbook Pro Retina. Just looking at the screen, made my eyes ...
3
votes
0answers
29 views

How to loop over display numbers in .xprofile?

Is there a simple command to get all the display numbers (and only the display numbers) connected to the computer? The use case is that I'd like to have separate colour profiles ...
1
vote
1answer
56 views

GUI running without $XAUTHORITY being defined, but not for root

I'm using CentOS 6, with Xfce as a desktop environment and have switched to xdm from gdm as a display manager. However, after making this change, I am observing a very strange oddity: graphical ...
0
votes
0answers
10 views

Transparent windows after forced reboot

I was playing on ZSNES, and after about 45 minutes the game froze. The computer did not react on anything except pressing the off switch and so forcing it to turn off. When I started it, right after, ...
1
vote
1answer
47 views

How to change the default driver used for an external screen

I'm having trouble setting up an external DisplayLink screen in Fedora 20. I've found someone who seems to be having exactly the same problem as me and his solution: If you are using "displaylink" ...
1
vote
0answers
40 views

Minimizing display lag. Graphics software stack? Process priority? RTOS?

I am looking to come up with a setup to minimize display lag for psycophysics and electrophysiological reaction time experiments. I'm not talking about costly graphics computations on every frame, ...
1
vote
1answer
124 views

Run an X11 program under Cygwin

How do I set the appropriate DISPLAY environment variable? I try to launch idle in cygwin using the following command: idle ...and I get a display error: _tkinter.TclError: no display name and ...
1
vote
0answers
86 views

Dual displays, one fixed, one spinning (CentOS 7)

I have 2 monitors and would like to have my setup like this: Monitor = fixed desktop (only 1) Monitor = dynamic, spinning desktop (1+) It was working like this at the beginning but somehow I ...
1
vote
1answer
96 views

Blank matlab code tooltips in Gnome 3, Debian Jessie

In the picture is shown what works and what doesnt work (also doesnt work for warning descriptions in the code). Current version Gnome 3.14.1. I tried to change window style settings with ...
0
votes
0answers
124 views

How to make switching virtual terminals instant?

I've configured kdm (editing /usr/share/config/kdm/kdmrc) to automatically open two displays: StaticServers=:0,:1. When I switch between them with Ctrl+Alt+F7-8 there is a delay of about 2 seconds ...
0
votes
1answer
267 views

Installing netbeans on Scientific Linux- NoClassDefFoundError thrown from the UncaughtExceptionHandler in thread “main”

I'm installing netbeans 8.0.1 on Scientific Linux. I have executed the installer .sh but I get the error: java.lang.NoClassDefFoundError thrown from the UncaughtExceptionHandler in thread "main" ...
2
votes
1answer
63 views

How to determine which displays are enabled/disabled

I am able to enable or disable my LVDS display using xrandr --output LVDS --auto xrandr --output LVDS --off respectively, but how can I programmatically determine whether the display is enabled? ...
1
vote
1answer
36 views

Is possible to change X server without kill client? [duplicate]

My usecase: User opertes on Server1 station. He can use ssh or whatever to connect with Remote Station and start some application on it and display it on his station (Server1). Now user has to change ...
3
votes
0answers
462 views

Google Hangouts with dual monitor and GNOME Shell

I have a laptop with a built-in screen and an attached monitor. When I start a Google's video Hangout and share my desktop, I would like to be able to share only the attached screen, but I don't know ...
3
votes
0answers
95 views

Prevent dom0 IGP from being VGA-passed-through to HVM host with Xen4.4

Usually people want to VGA-passthrough their IGP, and there are a lot of documentation out there. However I don't want my IGP passed-through to the domU as it serves my dom0, only my secondary card ...
0
votes
1answer
542 views

unable to open X server with ImageMagick Mac osx

I am trying to display an image using the following: Display someimage.jpeg It returns this: display: unable to open X server `' @ error/display.c/DisplayImageCommand/426. I have been looking at ...
0
votes
0answers
39 views

Driver install fixes gnome on old laptop but Ice Weasel hangs the desktop

I installed Wheezy on an old laptop with a Quadro4 go700 video card in it. Gnome did not like it and the display was corrupted. Therefore, I disabled the Nouveau driver, downloaded the Nvidia Linux ...
0
votes
1answer
52 views

how to detect what DISPLAY is active/has input focus?

Is there some command (or trick) to detect what DISPLAY is active? I mean active in a sense that it will "eat" all key strokes, and mouse clicks and moves; so it has the input focus. I mean also for ...
2
votes
0answers
69 views

Configuring Linux Second Monitor

I have two identical monitors (Compaq CQ1859s, 1366x768). I just installed Ubuntu onto the computer with which these monitors are being used. Upon installation, one of the monitors had its type ...
0
votes
0answers
71 views

Cube not working in Fedora 20 KDE

When I switch desktops on my Fedora 20 system, with the "desktop cube" it doesn't work. Instead of showing the cube effect, it displays briefly LibreOffice with an open document which I closed 10 ...
2
votes
0answers
123 views

How can I set up an offbrand display link (Trulink) to work with arch linux?

I recently bought a USB to DVI adapter and it works great in Windows. However, I wanted to use it on Arch since that's where I do most of my work. Unfortunately it doesn't work. I've installed all ...
1
vote
1answer
225 views

Screen stretching on Mint Cinnamon after hard reboot

I've been running 64-bit Linux Mint Cinnamon for a couple of years now on my current hardware. I upgraded to Qiana a month ago and hadn't had any problems with it. This morning my machine locked up ...
1
vote
0answers
268 views

xrandr-mediated correction of VGA overscan on external computer monitor

When I employ an external monitor (Dell E207WFP) as the display device for my laptop computer, about 10 pixels are truncated from the left edge of the screen, which I believe is a consequence of a ...
1
vote
0answers
141 views

DisplayLink monitor alongside Intel

I have a USB DisplayLink device that I've been able to get working with a custom Xorg configuration file. I'm running Ubuntu 12.04 amd64 with the X server from saucy as a result of installing the ...
2
votes
0answers
279 views

How can force my screen to unblank?

I've been doing a lot of looking around forums for different ways to unblank the screen. I am running embedded linux on a machine I have and I found out that the screen goes blank under certain ...
2
votes
2answers
1k views

How can I make xrandr changes persist?

I run this command to allow me to move windows between screens: xrandr --auto This magic command fixes my screen for me (before I run this my 2nd monitor is just an empty space where I can move my ...
4
votes
1answer
1k views

How do I extend my desktop to my 2nd monitor rather than just cloning it?

I have just installed Debian Wheezy for the first time and have had mixed success getting my system up and running. Currently my main issue is that I am unable to extend my desktop to my second ...
4
votes
2answers
750 views

WMI-based hotkeys on not working

On my Dell latitude e6540, the WMI hotkeys Fn+Up and Fn+Down are not working. I have all necesary modules compiled in my kernel: CONFIG_DELL_LAPTOP=m CONFIG_DELL_WMI=m CONFIG_DELL_WMI_AIO=m On the ...
0
votes
0answers
26 views

Increase brightness in a part of the display

I have a laptop with a damaged screen: while it displays an image, one half of it is darker than the other half. Is there any tool to increase the brightness of only a single part of the display? ...
1
vote
1answer
63 views

Acting on a different display when using SSH [duplicate]

I am connecting to a Linux CentOS 2.6 computer via SSH wit the display deported on my screen (using MobaXterm). It is also possible to access to this computer "physically". However, I would like a ...
4
votes
0answers
247 views

EDID Invalid on USB DisplayLink Device

I have a Sabrent USB to HDMI adapter which is a DisplayLink device. It's recognized by udl as being a DisplayLink device, yet seems to be rejected/disabled due to having an invalid EDID: ...
1
vote
1answer
135 views

Block TTY echo to display

I have a minimal Ubuntu as a Linux server. It starts many scripts on startup that is ok but I want to disable tty1 to echo everything to display When I start this server a login promt is presented on ...
1
vote
1answer
6k views

Linux Mint 16 display resolution and monitor

I am using Linux Mint 16 and I have two questions. I am very disappointed I have needed to resort to a website to answer this, usually on Windows this would be very intuitive. The first problem is ...
0
votes
0answers
221 views

xrandr -o right causes black screen

I use Fedora 20 on lxde. lxrandr allows me to only choose resolution. When I run xrandr -o right it makes my screen black with just cursor visible. /root/xorg.conf.new contains: Section ...
3
votes
1answer
154 views

How to regain control of my computer?

I am running a database server on my computer. Sometimes it takes up so much memory resources that the system stop responding to keyboard and mouse inputs. Although I can move the mouse pointer and ...
0
votes
1answer
70 views

Automatized restoring of display settings

I have two displays: my laptop's main monitor, running at resolution 1366x786 and second, external, running at resolution 1920x1080. My default display setting is to use both monitors at these ...
0
votes
1answer
425 views

Open program in another terminal window windows-solaris

I am running Attachmate Reflection for UNIX and logging into my Solaris system. I then want to open a file with nedit but I get an error: NEdit: Can't open display So, I type in xhost + and ...
2
votes
1answer
367 views

screenshot only the active monitor on ubuntu/debian

I would like to do screenshots of the active monitor (the one on which my mouse is) or screenshots of always the same monitor ; and not the two monitors at the same time. Is there any command/option ...
24
votes
1answer
2k views

How do keyboard input and text output work?

Suppose I press the A key in a text editor and this inserts the character a in the document and displays it on the screen. I know the editor application isn't directly communicating with the hardware ...
1
vote
1answer
159 views

KMS Terminal: How to disable second screen, or how to force a certaion resolution?

I have two screens with different native resolution connected to my Gentoo/systemd machine. since the VTs try to mirror the outputs, they do not use the whole size of the higher resolution screen. I ...
1
vote
0answers
71 views

How to have X server on another graphics card which keeps refreshing when I'm working on my main display?

For presentations I want to use the external USB connected video adapter connected to the projector (especially as the standard VGA output in my laptop got damaged). My idea was to start a dedicated ...
1
vote
3answers
2k views

Is there a shutdown/restart command for x11VNC? - Linux (Debian)

I am running Linux (Debian). I recently installed the x11VNC server on my computer. I found the command to start the server is: x11vnc -display :0 I have been searching but did not find any ...
0
votes
1answer
27 views

How exactly is a Linux desktop/device/display expressed in a terminal?

My plan is to use vpxenc (video encoder) and flac (audio encoder) to record the screen/microphone, but I'm stopped short of entering the input (file) in the command line. How can I exactly address a ...
2
votes
2answers
492 views

How to detect aspect ratio of monitor?

How do you detect the aspect ratio of your monitor? I tried: root@malou-laptop:/home/liv# xrandr -q xrandr: Failed to get size of gamma for output default Screen 0: minimum 640 x 480, current 1680 x ...
1
vote
0answers
2k views

Issues with Fedora 20 and bumblebee

I'm experiencing several issues trying to use my Fedora 20 laptop NVIDIA Optimus technology. My system: ASUS N53S Fedora 20 x86-64 3.12.6-300.fc20.x86_64 Kernel Intel Core i7-2670QM NVIDIA Geforce ...
2
votes
0answers
595 views

xrandr call makes it forget about secondary display

In short I have a laptop with an external DVI display which is hooked up to its Display Port (via adapter). When I rotate the internal screen using xrandr, it will forget about the secondary display. ...