Computer monitors (i.e. screens or displays). For system/application monitoring, please use the /monitoring tag.

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0answers
9 views

Monitor won't sleep RHEL 6.5

I just installed linux and even after 30 minutes the monitor never goes to sleep. I have no idea where to look beyond the power management settings. Tried even setting the turn monitor off after 1 ...
5
votes
3answers
2k views

Screen brightness always maximum when logoff or restart

I am using Fedora 13 and whenever I Restart or Logoff on my laptop. The screen brightness resets to its maximum value. I am not aware of this problem. Can anyone tell me why this is causing and what ...
35
votes
6answers
12k views

How can I detect when a monitor is plugged in or unplugged?

Is there any event that is triggered when I plug in or out an external monitor into the DisplayPort of my laptop? ACPID and UDEV don't react at all. I'm using onboard graphics on an intel chip. Here ...
0
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0answers
77 views

the moire pattern - how to calibrate my LCD?

I faced a strange issue (something like described here and here); I am not sure but when I look at the lcd screen it feels like an eyes strain or similar which is quite uncomfortable; On Linux Arch ...
2
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1answer
94 views

Custom Resolution For vt Console in FreeBSD 10

In FreeBSD 10 there is new vt driver for having nice framebuffer console. By default it chooses resolution from the EDID data of monitor. However, I have a display that has incorrect EDID data. ...
6
votes
1answer
807 views

Program similar to xcalib to invert desktop colors

I'm using xcalib to invert colors on my computer at home. I have two monitors at work, and unfortunately the xcalib -i -a inverts only one of them (the one I don't want to invert). I haven't found any ...
9
votes
2answers
730 views

Can I color-calibrate a Dell U2413 wide-gamut monitor under Linux?

If I get a Dell U2413 wide-gamut monitor to use with Fedora for photography, will I be able to use it properly? I've got a ColorHug, and I see that there's a U2410 ccmx profile; will that get me in a ...
4
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1answer
45 views

why isn't monitor listed under /dev in linux?

If /dev is suppose to list all the devices that is connected, like usb, hdd, webcam, how come on my ubuntu 15 VM I don't see a monitor? I am running the desktop edition so there should be a monitor. ...
1
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1answer
98 views

What decides where TTY and boot messages are displayed?

I recently switched from Fedora 21 to Arch Linux, and one thing that bothers me is that Arch does not put boot messages and TTYs' on all available outputs like Fedora does, but only on the primary ...
2
votes
1answer
38 views

Turning off part of a monitor

I'm trying to disable the right third of my monitor, since it's broken. I can get less to be displayed using xrandr, but the monitor will then center the displayed stuff, so that's not quite what I ...
3
votes
2answers
822 views

Enable second monitor from shell

So... I have two monitors on my Ubuntu machine. And every time I launch some Windows OpenGL application under Wine it turns off the second monitor. And leaves it turned off when the application exits. ...
2
votes
1answer
61 views

Persistent configuration of two screens

I want to configure two screens side by side and want the configuration to persist a system restart. (I'm using xfce on Xubuntu 12.) I've inspected old questions and the answers mentioned arandr and ...
1
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0answers
37 views

debian wheezy switches from internal to external monitor after AMD proprietary installation

First I would like to say that this is my first try to set up a linux distribution. With taking Debian 7.8 I was probably over estimating myself. I do have the following video card: lspci -nn | grep ...
2
votes
3answers
2k views

Split a physical X display into two virtual displays?

I just purchased a TripleHead2Go and configured it using OSX. What this box does is simply take 1-3 multiple external monitors and combine their signal into one single resolution. I'm using two ...
1
vote
1answer
75 views

How to set the monitor brightness gracefully at boot time?

I've been using a loop that contains xrandr --output VGA1 --brightness 0.3 in a bash script which will automatically execute right after logging in by gnome-session-properties (a.k.a. Startup ...
0
votes
0answers
24 views

Monitor not indentity

I use Debian 7.x and have two same monitors NEC MultiSync LCD2090UXi. But only one of them is detected as NEC. I used xrandr for change resolution of unidentified monitor and all was ok, but after ...
0
votes
1answer
50 views

Linux Mint: “Move to monitor 2”: but I don't have a second monitor. How do I fix this?

I have a fresh install (about a week old) of Linux Mint 17.1 Rebecca (love the name!), Cinnamon edition on my laptop. If I right click on a tab, I get the option "Move to monitor 2". The problem is ...
1
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0answers
264 views

How to rotate the LCD screen/framebuffer to 180 degree?

I have a custom board with a Freecale i.MX6Q SoC. I am using Linux kernel 3.03.35 and LCD is 3.5 inch RGB type display. I want to rotate my LCD screen to 180 degree. I tried a lot to pass parameters ...
0
votes
1answer
47 views

Is there a way to adjusts the brightness of the monitor?

Using the softbuttons is annoying over time. I mean the real brightness of the backlight (Not X11 gamma). Which protocols are cabable of this? (DVI, HDMI, DP, guess VGA is not)
1
vote
1answer
85 views

Thinkpad x201 Tablet, rotating Screen

I am running ubuntu 14.04 on thinkpad x201 tablet. I have tested the tablet modus once and the played a bit with the buttons under the screen (so rotated the screen). But now at the starting the ...
4
votes
1answer
2k views

Cannot set up screen panning in Ubuntu with xRandR which states that it cannot find the modes

I am using a Samsung n150 netbook with a 10.1 inch screen and it has a maximum screen resolution of 1024x600. I am running Ubuntu 10.04 LTS and want to enable screen panning for a larger virtual ...
0
votes
0answers
77 views

Error in adding monitors for creating object cluster in Ceph

I've tried to install and config "ceph storage cluster" for creating ceph object storage. I'm following this manual. When I try to add 3 monitors by typing the command "ceph-deploy mon create osd001 ...
1
vote
1answer
221 views

hdmi not showing up in xrandr

Everything used to work until recently. Now, whenever I connect my HDMI monitor to my laptop nothing happens. Running xrandr doesn't show the HDMI output. Can anyone help out? I've been trying to fix ...
2
votes
2answers
381 views

Unable to start X Server with no screens, no xorg.config to edit

I am trying to start the X server (I have all the packages installed). The problem I am having is that the server is offsite, has no screen and never has had a screen connected to it and as a result ...
0
votes
0answers
504 views

Cant change screen resolution in Kali Linux [closed]

So I bought a brand new laptop, I bought a Lenovo Y50. It runs a Nvidia GEFORCE GTX. I installed Kali linux on the HDD and the screen is to large and does not fit on the actual computer screen. ...
1
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1answer
686 views

Screen brightness adjustment not working in Ubuntu 14.04

When I try adjusting the screen brightness using the function keys on the keyboard, the adjustment scale is shown on the screen responding but the screen brightness is not adjusted. Tried ...
1
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0answers
14 views

How to set VertRefresh without restarting X?

Suppose a second monitor is attached to a running system, and the video driver has some trouble getting this monitor's EDID to get its limits of operation. The monitor has a native resolution of ...
-1
votes
2answers
163 views

Run GUI Java jar on system boot Lubuntu

I have a PC which runs Lubuntu 14.10 without a monitor. The user is autologged in. I have created a Sysvinit script and installed it on /etc/init.d. My script amongst other things, starts a jar file ...
1
vote
1answer
139 views

GNOME prevents high resolution VGA without EDID info over VGA

I recently bought a KVM switch, consisting of a VGA switcher and switchable USB hub. This switch however, does not pass EDID info from the connected display to either of the two connected computers. I ...
1
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0answers
77 views

Xorg: Connect remote display

I'd like to use laptop's monitor as second display for my main Debian workstation. I need exactly second monitor, but not Debian's X11 on laptop.
2
votes
1answer
337 views

How can I change screen brightness in debian wheezy that installed in laptop?

My screen is just too bright. How can I adjust screen brightness? So far I tried the following: "Brightness and lock" settings doesn't work. Fn + F6 or F7 doesn't work. This doesn't work. This ...
0
votes
0answers
210 views

Ubuntu 12.04.5 laptop not detecting external monitor

I am running ubuntu on my work laptop. When I plug in my external VGA monitor it mirrors part of the screen (different resolution) but does not appear on my monitor list under System Settings > Screen ...
4
votes
0answers
324 views

Screen flickers in Fedora 17

Screen flickers every 10 seconds. (I timed with a stopwatch, screen flickers every 10 seconds, 6 times a minute exactly.) I've used Windows and I'm trying to use Linux. I don't know much about Linux. ...
0
votes
0answers
23 views

What happens in the operating systems when I connect monitor to a VGA port?

I would like to study the behaviour of the Linux operating system when I connect monitor to a VGA port. What exactly happens inside the OS and the Window Manager, which parts of it are responsible for ...
33
votes
2answers
5k views

Why is video tearing such a problem in Linux?

I've used many variants of Linux(mostly Debian derivatives) for over a decade now. One problem that I haven't seen solved satisfactorily is the issue of horizontal tearing, or Vsync not being ...
1
vote
1answer
220 views

Stretch window over two monitors with “gap” in between

I have a dual monitor setup with Compiz as window manager on Ubuntu 14.04. I can resize a window to stretch over both windows. However, while the physical display panels are a few centimeters apart, ...
4
votes
1answer
115 views

How do dim screen, even if artifically, below the minimum?

My laptop (a Toshiba Sattelite) runs far too bright, even in the ambient light from outside in the day, and I need to be able to dim it below its minimum setting. ~#cat ...
2
votes
1answer
196 views

Dual Monitor mode in XFCE not working with xrandr

I am using Manjaro with XFCE on a laptop (Thinkpad x240). I have a docking station (Thinkpad Ultra Dock) with a monitor connected and that works like a charm. Today, I received my second monitor and ...
5
votes
0answers
496 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 ...
2
votes
1answer
216 views

Screen size in FreeBSD in VirtualBox

I am installing FreeBSD 10.0 on VirtualBox, and I can't figure out how to change the size of my screan, in the virtualbox? The freebsd in the virtualbox treats my screen like it's 1/4th the size of ...
4
votes
1answer
324 views

Why is laptop screen called eDP1?

In my new laptop, using i915 and the intel driver of Xorg, the laptop screen is called eDP1 in Randr $ xrandr eDP1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 277mm x 156mm ...
1
vote
1answer
639 views

unlisted screen resolution

on my new computer I have 2 screens connected on the igpu of a i7 processor, 1 using hdmi. the other using dvi. Both screens are the same but 1 has a wrong resolution inside X, and it can't be ...
2
votes
2answers
728 views

configure second monitor

I have a new Debian machine and I'm trying to attach a second monitor to it. When I plug it in in my HDMI port, the second monitor duplicates the firts monitor, while I wuold like to extend it. My ...
2
votes
1answer
860 views

Mimo 2G USB Monitor and cheap computer (Raspberry Pi?) [closed]

I have a Mimo 2G USB Monitor (UM-710S I believe) which I got in college due to the lack of space for a real second monitor in the dorm. Now I don't really have a use for it, so I thought of ...
9
votes
2answers
3k views

Get monitor make and model and other info in human readable form

I have extracted the shorthand version of the current monitor attached to the computer. Here is an example: vendor "VSC", prod id "18500" In Ubuntu's Monitor Preferences, it is identified as ...
3
votes
0answers
80 views

how to use xrandr to mirror just a part of my main screen?

I want to make a mirror of just a part of my main screen to another monitor with different resolution. So it will be necessary to crop the desired area and apply a transformation to fit the screen ...
1
vote
0answers
114 views

External VGA monitor disappeared from display options list

I am running Linux Mint 17 Xfce on an HP Elitebook 840 G1 laptop. Up until just now I was using an external monitor, displaying identically the same thing as the built-in laptop display, connected via ...
4
votes
1answer
2k views

Cannot use highest resolution, xrandr does not list mode (Intel GPU, DP to DVI adapter)

I have a screen capable of 2560x1440. It is connected to my Intel NUC with a DP to DVI adapter. My graphics card Since updated my Arch Linux system last week (not sure what was updated exactly) I can ...
5
votes
1answer
2k views

Cinnamon 2.0.14 crashing when a second monitor is enabled with NVIDIA drivers (Mint 16)

Here's the set-up: 2x identical GTX460 cards 1x BenQ 144hz monitor (1920x1080) 1x Asus 60hz monitor (1920x1080) I was told to avoid installing the NVIDIA driver myself and use the ...
18
votes
4answers
5k views

How can I put my HDMI display into (and out of) power save mode?

I am using a Raspberry Pi to run an information display in an office. I want the display in power save mode when outside of business hours. I was going to use cron to execute something at the ...