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

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-1
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2answers
38 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
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1answer
27 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
45 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
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1answer
40 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
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0answers
64 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 ...
0
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0answers
12 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 ...
27
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2answers
3k 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
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1answer
44 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, ...
3
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1answer
44 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
77 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 ...
1
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1answer
98 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 ...
2
votes
2answers
452 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 ...
1
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1answer
266 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 ...
3
votes
0answers
53 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
74 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 ...
1
vote
0answers
27 views

Fedora 20 Monitor Flickering /Tremble

I used a LCD monitor with Fedora 10. No problem. Then, I bought a new computer, Intel Atom (Packard Bell) and installed Fedora 20 KDE Plasma and attached the previous LCD monitor Everything fine, ...
0
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0answers
217 views

QEMU fullscreen mode on external monitor

I recently purchased an external monitor which I succesfully connected to my Lenovo Thinkpad and the accompanying Lenovo Advanced Dock via a DVI-D cable and it works fine so far. Unfortunately, I'd ...
0
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0answers
12 views

i3 mirrors laptop screen on monitor, wasting space [duplicate]

Similar to this guy, I connected my laptop to my new monitor with a vga cable, when using i3 it mirrors the laptop's screen, which is smaller, causing tons of wasted space. Is there some way to ...
4
votes
0answers
406 views

Monitor connected via displayport to DVI adapter won't sleep properly

I have a monitor connected to my machine that displays odd behavior when entering power saving sleep mode. When entering sleep, the monitor will alternate between blanking and displaying a default ...
2
votes
1answer
790 views

CRT monitor refresh rate

I have Ubuntu14.04 64bit installed on computer with a CRT monitor. In Windows I could set the monitor's refresh rate to 85Hz. But Ubuntu's xrandr reports that maximum is 60Hz for 1024x756. Is there a ...
1
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2answers
151 views

Matrix Structure for screen rotation

I can set my screen rotation to inverted with: xrandr -o inverted xinput set-prop 'ELAN Touchscreen' 'Coordinate Transformation Matrix' -1 0 1 0 -1 1 0 0 1 and back to normal with: xrandr -o ...
0
votes
0answers
162 views

Linux Mint (XFCE) on Acer Veriton - using one monitor, Mint thinks I have two?

I've installed a fresh version of Linux Mint 16 (XFCE) on an Acer Veriton desktop. It seems to work correctly, however, I have a "display within a display". I.e. I have a full screen display, with ...
0
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0answers
75 views

Automatically detect multiple monitors

I'm running Ubuntu 13.10 with xmonad. I am not using GNOME. I frequently have a second monitor plugged into my laptop, but I always have to configure the extended display manually. Right now I'm using ...
4
votes
1answer
1k 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 ...
1
vote
1answer
351 views

Change default monitor screen in GRUB 2

Recently my notebook screen died and I started using an external VGA monitor. When my computer boots the monitor is off until GRUB 2 starts the OS. Is it possible to make GRUB 2 display its menu in ...
2
votes
1answer
119 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 ...
1
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2answers
372 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. ...
1
vote
1answer
57 views

Selective dim screens

How can I dim only select screens of my multiple-monitor linux system? I have 5 monitors connected to my computer 4 *15 inch and one 27 inch. sometimes i want to use only the main screen (27) and ...
1
vote
1answer
168 views

External Dell monitor has ghosting effects on dropdowns and terminals

I have an external monitor setup that works perfectly in windows, but in linux mint I get weird ghosting effects in the monitor. the monitor is a DELL SP2309Wc with resolution of 2048 x 1152 No ...
3
votes
0answers
344 views

What is the xcalib -screen number for the HDMI monitor?

I must use a VGA-to-DVI cable and a HDMI cable to run two monitors. I'm trying to invert the colors on both monitors but I can only invert one of them: $ xcalib -invert -alter -s 0 #works $ xcalib ...
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 ...
0
votes
0answers
333 views

Change screen resolution of Xenserver Console for a CentOS VM

I need to increase screen resolution to 1024x800 for my XEN console. I tried to place vga=791 at the end of kernel line the file /boot/grub/grub.conf but it seems that most of the boot arguments ...
3
votes
0answers
191 views

How can I crop a 1920x1200 monitor to 1920x1080?

I have just purchased a 1920x1200 monitor, and have some situations where I want to force the output to the more common 1920x1080. However, I don't want to distort the output, and would prefer a ...
3
votes
1answer
330 views

How automatically change the orientation according to display's pivot position?

I have a display I use for programming in portrait mode. To watch videos, I pivot it to landscape mode multiple times a day. The physical transformation is quick but I have to dig into the monitor ...
2
votes
2answers
480 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
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0answers
151 views

Xorg Configuration for Unregistered Resolution

I have a monitor with native resolution of 1600*900_60.00, and the intel on board Gen3 Xeon video chipset (i915). when i do $> xrandr the 1600x900 resolution is not in the list. I tried to write an ...
1
vote
1answer
153 views

Cooking EDID and finding values for .S file

It became really annoying and the resolution is bad so I decided to make my EDID and pass that to the Kernel. (I am creating EDID for S20A300B and samsung says in its page the best RES for this ...
1
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0answers
59 views

Invert *only brightness* for monitor

When using notebook in darkness it is more convenient to have the screen mostly black, compared to the default mostly white. The issue of inverting colors was discussed here frequently. One have a ...
0
votes
1answer
279 views

Unable to change backlight level

In Manjaro I can't set the backlight. I've tried to add: acpi_osi=Linux acpi_backlight=vendor to the kernel's command line but it didn't work. And I also added Option "RegistryDwords" ...
2
votes
1answer
890 views

Backlight control manjaro linux

I'm new to arch/manjaro. I've installed it onto my sony vaio vpceh1m1e. I cannot change the backlight value. I've solved this before on ubuntu, add this line to the xorg.conf: Option ...
3
votes
1answer
349 views

How to change GNOME default screen rotation

How do I change the default screen rotation for my gnome desktop? Is there anyway I can change the monitor settings without logging in?
2
votes
1answer
1k views

Extended monitor - scroll right to access left screen

I am running Crunchbang (debian based) and I'm trying to extend my desktop, I've ran the following command: xrandr --output DVI-I-2 --auto --output DVI-I-1 --primary --auto This has extended the ...
4
votes
0answers
432 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 ...
1
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0answers
345 views

How can I get X to autodetect monitor specifications again?

I'm running fc19 in 64 bit. After going through the horrible process of trying to install kmod-nvidia, akmod-nvidia, and the proprietary nvidia driver, in an attempt to get CUDA working, I have rolled ...
1
vote
1answer
85 views

Monitor does not switch off

I set the monitor to switch off after 14 minutes. But what happens is that it cycles between being off a second and backlight comes on another. I am sure that this is a Linux issue for the monitor ...
5
votes
1answer
637 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 ...
7
votes
1answer
625 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 ...
8
votes
1answer
416 views

How can I send power on/off signals to a VGA monitor?

I've used some old spare parts to make a sort-of kiosk for my kitchen. It's running OpenBSD and has a simple text based UI (no X Server). I plan to add an Arduino with a motion sensor that ...
0
votes
1answer
80 views

Replacement for standard KDE monitor manager?

My Linux experience is roughly a 4/10. I'm running the latest Debian-Wheezy install, and I've been having some trouble with the stock KDE display/monitor manager (to clarify as these terms seem to ...
1
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0answers
135 views

dbus problem with caja when using chocolate-doom on Linux Mint 14

I'm running Linux Mint 14 (Nadia) and I'm having a problem with chocolate-doom. When I run it, it changes the screen resolution but for some reason upsets caja (the file manager) like so (from ...