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7 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, ...
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1answer
20 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
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0answers
27 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
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1answer
44 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 ...
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0answers
39 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 ...
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1answer
44 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 ...
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0answers
87 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
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1answer
102 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
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1answer
49 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
32 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 ...
2
votes
0answers
318 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 ...
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0answers
70 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 ...
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1answer
319 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 ...
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0answers
33 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
45 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
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0answers
55 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 ...
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0answers
60 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
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0answers
100 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 ...
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1answer
124 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 ...
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0answers
196 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 ...
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0answers
111 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
205 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
691 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
745 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
542 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 ...
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0answers
23 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
59 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
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0answers
202 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
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1answer
119 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
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1answer
5k 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 ...
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0answers
189 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
139 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
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1answer
61 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
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1answer
322 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
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1answer
277 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 ...
23
votes
1answer
1k 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 ...
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0answers
139 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 ...
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0answers
59 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 ...
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3answers
1k 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
25 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
350 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 ...
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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
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0answers
529 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. ...
0
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2answers
668 views

What is the difference between DISPLAY :0 and :0.0? [duplicate]

What is the difference between DISPLAY :0 and :0.0? On RedHat 5.8, I can right click the desktop to start a shell and DISPLAY will be ":0". If I go to the Menu-System-Terminal to start a shell then ...
1
vote
1answer
72 views

Is it possible for a program to have its dedicated X display?

Can a program have its own dedicated X display, as though it can start the X display, set the screen size to match its own size and ensure that no other program can use that X display? Some VNC ...
1
vote
1answer
108 views

RHEL - GDM could not be initialized

Actions before the GDM failure I was trying to install RT tool in my system. However, the RT tool required Perl 5.10. So, I did yum remove perl to remove the existing version. While the command was ...
0
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1answer
136 views

How to undo DISPLAY export in linux?

I have exported my X display to another computer using this command: export DISPLAY=xxx.xxx.xxx.xxx:0.0 How can I undo it?
2
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2answers
1k views

Display shuts down while watching a movie after 10 minutes no matter the settings in Elementary OS

I've noticed this when trying to watch movies on that laptop running eOS. After 10 minutes or so the display is turned down. I've looked for settings against this and found the following: Power ...
4
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0answers
396 views

How to modify the default setting adopted by xrandr when connecting an external monitor?

I am confronted with a problem of conflict of resolutions (this is a separate question), which makes the display image distorted on both monitors. But this bothers me the most when connecting the ...
3
votes
1answer
267 views

Unblanking a Linux Terminal Display

I am running an Ubuntu Server that boots to the console. After a long wile, the screen goes blank and I cannot type or unblank the screen. Even the caps lock / num lock do not change states. I am ...