Questions that relate to the electronic display (sometimes called a visual display unit) for computers. Typically questions relate to visual issues such as flickering, resolution, black-screens together with the usage of single and multiple displays.

learn more… | top users | synonyms

2
votes
1answer
700 views

Ubuntu 10.04.4 32 bit not detecting Acer monitor

Acer monitor AL2216w 1680x1050 cannot do anything execpt attach different monitor. This started happening after latest system update. Reloaded Ubuntu back on hard drive still did not help. Took out ...
1
vote
1answer
26 views

How do I set refresh rate on each monitor invidually?

What am I suppose to write to set each monitor on its own Refresh rate? I can write xrandr -s 1920x1080 -r 144 but that does apply on both monitors which makes my 60hz monitor go black.
1
vote
1answer
22 views

Programs sometimes open on the wrong monitor

I'm running Ubuntu 14.04LTS 32bit version with 2 screens. Graphic card is the Nvidia Geforce 9500GT. One screen is the main monitor, where the other is connected to my beamer for the home cinema. ...
1
vote
1answer
25 views

How can I dim my monitor?

On windows, I had an application called dimmer. I used it on my desktop monitor to make the brightness more manageable. I want an equivalent for Ubuntu. I tried xbacklight to no avail.
1
vote
1answer
215 views

Horizontal lines in Ubuntu 15.10

I have installed Ubuntu 15.10 64bit on a Dell Optiplex 780 desktop with a 23 inch monitor, 4 GB of RAM and Intel Duo Core processor. The monitor shows horizontal lines (artifacts) randomly at any ...
1
vote
1answer
93 views

Monitor showing as DVI although plugged in as VGA

Recently I had my computer upgraded because I was having problems getting Ubuntu 14.04 to work. I now have more than the min requirements but am still having trouble getting the graphics to work once ...
1
vote
1answer
567 views

Samsung SyncMaster 2033 Monitor Not working properly

I have a samsung sync master 2033 Monitor with a resolution of 1600x900 px. A few days earlier Ubuntu started behaving absurdly, It didn't recognise the monitor and now I'm stuck with 1024x768 px ...
1
vote
1answer
86 views

How to make PXE boot auto detect monitors and setup dual monitors

I'm currently can boot a Ubuntu PXE. but the problem is with multi-monitors. I have to run xrandr command to get the dual monitors up. with suggest from How do I setup dual monitors in XFCE? xrandr ...
1
vote
1answer
785 views

HDMI ports stopped working on 14.04 updates

Situation is that my zotac box only has an hdmi port for the monitor, so this problem is hard to trouble shoot. If I load the original 14.04 LTS on the zotac box I full monitor capabilities through ...
1
vote
1answer
421 views

Ubuntu 14.04,NVIDIA Corporation GF108M [NVS 5400M] laptop monitor problem

I am having a problem with making the laptop monitor work with the latest ubuntu. I am using optimus on lenovo t430 at the moment and when I try to activate the laptop monitor I get an extended ...
1
vote
1answer
2k views

Wrong resolution on ubuntu 14.04

I have installed Ubuntu 14.04 LTS on my system. My graphics card is an NVidia 8800GTS. For some reason ubuntu detect that my screen resolution is up to 1024x1280. I have already installed the NVidia ...
1
vote
1answer
212 views

Connecting and controlling my desktop with my laptop monitor using ubuntu.

I would like to know how to use my laptop as a monitor for my desktop. my laptop is running windows 7 and my desktop is running ubuntu 13.10. i do not have a monitor for the desktop. Thank you.
1
vote
1answer
173 views

Dual monitors on different graphics inputs?

Here's my dilemma, I was just running Windows and to run both of my monitors, my secondary monitor was running off of my integrated chip. In my BIOS I set the boot up graphics device to be the ...
1
vote
1answer
438 views

Lubuntu VM - how to make external monitor on left side of primary monitor

I am using lubuntu as a virtual machine and my host OS is windows 8 and I connected an external monitor and it is to the right of my primary monitor. How do I change it so that it is to the left of my ...
1
vote
1answer
37 views

Blanking screen @ 30 Second intervals for no apparent reason

My screen keeps blanking at 30 seconds if nothing is touched or moved. It seems to have started after a recent update. I have tried changing screen-saver settings, xset values, and installing ...
1
vote
1answer
279 views

Connect monitor to headless server

I've inherited a server running on Ubuntu which has a keyboard connected, but no monitor. Now there's been a network problem and I'm currently unable to connect via ssh (not even ping works). Still, ...
1
vote
1answer
806 views

Screen flickers with Nvidia GPU

When I install the Nvidia driver (have tried both current and post-release current) the monitor flickers every time I open a new window/program such as Firefox. I don't know what else I'm going to do? ...
1
vote
1answer
1k views

configure modeline Ubuntu 12.04

I am running Ubuntu 12.04.2 in dual boot with Windows 7 on the same drive. In Windows, I customize my refresh rate for my 2nd monitor with the program powerstrip. When I export my Linux modeline and ...
1
vote
1answer
835 views

Run without monitor in 12.10

Yes I know this question is out there but none of the answers work for me like the ones found here and here. I have Ubuntu version 12.10 32bit. It's a fresh install. Only software installed is ...
1
vote
1answer
1k views

Switchable nvidia GT 540m HDMI output Problem

I have bought a Alienware m11xr3 with nvidia GT 540m and a internal graphic card. uname -r 3.2.0-33-generic-pae here is the lspci | grep VGA output: lspci | grep VGA 00:02.0 VGA compatible ...
1
vote
1answer
1k views

Refresh rate revert on 60 Hz on reboot

I just installed Ubuntu 12.04 (upgrade from 11.10) and when I change monitor refresh rate everything is ok, until reboot, on reboot my refresh rate revert to 60 Hz. I found similar threads on Ask ...
1
vote
1answer
140 views

Ubuntu only working with second monitor

I'm using the try ubuntu selection from my ubuntu cd. For some reason, the screen on my laptop is completely black. Only when I hook to my second monitor does ubuntu show up, and then, its only on ...
1
vote
1answer
153 views

Weird error (bug?) on my screen

I've got a problem. Here is my laptop spec : Type: ASUS A43E-VX389D Video Card: Intel HD Graphic Memory: 2 GB DDR3 Processor: Intel B950 ( 2.1 GHz, 2MB L3 cache ) I'm using Ubuntu Precise ...
1
vote
1answer
1k views

how to make external monitor primary (xubuntu)

I am using Xubuntu 12.04 and I want to use my 24" monitor as a secondary display. Ok! First Try: Going to the Settings Manager --> display and searched for the secondary display to enable it. But ...
1
vote
1answer
2k views

Facing unity problems after upgrading to Ubuntu 12.04

I upgraded to 12.04 and had problems with unity. So this is what I did >> 1) Ctrl+Alt+F1 sudo apt-get install compizconfig-settings-manager Export DISPLAY=:0 ccsm 2) Ctrl+Alt+F7 3) Enabled ...
1
vote
1answer
671 views

Ubuntu 11.10 Black Screen

This is my current specs: Operating System: Windows 7 x64 CPU: Intel Core i7 920 @ 2.67GHz Bloomfield 45nm Technology RAM: 6.00 GB Tripple-Channel DDR3 @539MHz (8-8-8-20) ...
0
votes
1answer
13 views

Ubuntu flickering @ 144hz AMDGPU

I need some help. I've been trying to get 16.04 on my system since the second alpha came out but sadly whenever I try to run it the screens starts flickering like crazy when I start going through ...
0
votes
1answer
65 views

Xubuntu 16.04 external monitor

Ok, my first question here is simple: I have xubuntu 16.04 LTS on Laptop X86_64. The laptop can handle ubuntu xenial xerus to but I like xubuntu. It works like a CPU because I link It to a big ...
0
votes
1answer
19 views

System Monitor with data logging

Is there some application that allows system monitoring with value logging ? Most of system monitor application usually shows current system usage (CPU/RAM/HDD/NET etc) with (sometimes) small history ...
0
votes
1answer
21 views

Steam with a computer using 2 monitors

I have 2 monitors, and every time that i run a game from steam, it runs in the wrong monitor. Can I tell steam in which of the monitors to use the full screen mode? Thanks
0
votes
1answer
59 views

how to install download-monitor on 15.10

i have 15.10 and want download-monitor as shown from https://apps.ubuntu.com/cat/applications/precise/download-monitor/ it is not available. How to make it available?
0
votes
1answer
149 views

Second Monitor Not Detected!

I have a Dell M3800 and recently purchased a Dell S2715H and connected it to the laptop through the HDMI cable. For whatever reason, the monitor is not detected by ubuntu. My older dell monitor ...
0
votes
1answer
116 views

Getting wrong resolution on old samsung monitor

Today i connected my pc with old samsung sync master 591s monitor and getting strange display resolution. My resolution is being set at 800x600 but still cant see my side panal. Well its look like ...
0
votes
1answer
21 views

2nd Monitor isn't recognized in Display but is usable

I have Ubuntu 15.04 currently installed, with the AMD display driver. AMD recognizes both monitors, and has the accurate information and resolutions on both monitors, and both monitors set to single ...
0
votes
1answer
129 views

Monitor Resolution problem in Xubuntu 15.04

I'm new in this forum and even a beginner with ubuntu. I've already tried to set the resolution of my monitor to 1440x900 but I can't get on because xrandr shows me error messages like: xrandr: ...
0
votes
1answer
39 views

How do I set brightness to a lower level in lubuntu 12 (HP laptop)?

I tried everything I found online, but none of the methods I found worked. The buttons don't work, and there's no such thing as "Brightness" in Monitor Settings. I tried xbacklight -set but it didn't ...
0
votes
1answer
46 views

What component is causing the monitor to go to sleep?

We make systems based on Ubuntu 14.04 which we configure to kiosk mode, meaning we change the session to run our application and never present any desktop. Our session file is: [Desktop Entry] ...
0
votes
1answer
200 views

Second monitor not detected on Ubuntu 14.04.3 LTS

I am trying to hook up two monitors to my Ubuntu 14.04.3 desktop. My First monitor is connected to the CPU via an RS-232 cable, and is up and running. The second monitor is connected to a display link ...
0
votes
1answer
57 views

how to hook to monitor sleep event?

Is there an event I can hook up to when the monitor is set to sleep? I mean just the monitor DPMS sleep, not the PC sleep/suspend. My intention is to run a script when the monitor is sent to sleep ...
0
votes
1answer
104 views

Black Screen - Unsupported Resolution

I have an ultra wide screen monitor from LG (29UC97C-B) which seems to be not supported by Ubuntu. Shortly, before the Login screen should be visible, the monitore becomes black and prints something ...
0
votes
1answer
83 views

Changing resolution for samsung monitor?

I am using ubuntu from a usb for the first time and i cant seem to change the resolution to full hd ( 1920 x 1080 ) on my samsung monitor, the max res is 1280 x 1024 and my monitor is unknown and my ...
0
votes
1answer
49 views

Monitor goes black

Just installed 14.04 on my computer and after I solved my core-heating-problem, the new problem is that after 1 minute on desktop, either doing things or not - the monitor goes black.. No time to ...
0
votes
1answer
186 views

Refresh rate won't accep 120 hz

I can't get my monitor to set the refresh to 120hz. I'm using an nvidia gtx 970. The outputs are below (I'm using a 120 hz monitor & I was able to set it to 120hz in Ubuntu 15.04 when using an AMD ...
0
votes
1answer
41 views

Tried Ubdating Kernel; Now, Desktop won't load on startup

I get a blank black screen and a message that says "could not apply the stored configuration for monitors required virtual size does not fit available size" and says it can't use 3840xy and it's ...
0
votes
1answer
114 views

When I turn the monitor on, I get an “input out of range”, how do I fix this?

My computer was working fine a few days ago but now when I turn it on it displays: input out of range I don’t know what the problem is and have tried unplugging and plugging all the cords but it ...
0
votes
1answer
192 views

How can I make xubuntu ignore DisplayPort monitor being turned off?

I have a desktop machine (Dell T5600) with an Nvidia graphics card (Quadro 2000), and two monitors (Dell 24"), and I'm running xubuntu 14.04. If I switch off a monitor connected with DisplayPort, ...
0
votes
1answer
180 views

Issue with plugging monitor on my laptop

I have a dell monitor (DELL E1913) plugged on my laptop (Dell XPS 13 developer edition, ubuntu 14.10). I have a mini display port - DVI adapter connected on my laptop, this adapter is plugged on the ...
0
votes
1answer
309 views

Use LG 24" LED TV as Primary monitor

I have a tv that has HDMI input, and a computer with VGA output. (Computer is a Dell Optiplex 360) I have scoured every related question to this forum and have not been successful in my attempt to ...
0
votes
1answer
190 views

monitor outgoing email

I have a VPS and recently I found some unusual activity looking at the /var/log/mail.log and so I installed pflogsumm to send a daily report and got this: Per-Day Traffic Summary date ...
0
votes
1answer
68 views

Monitor switches off and won't come back!

I have Lubuntu 14.04 running on a Sony VAIO VGN-FZ140E. My problems is: out of nowhere my monitor turns off, and no matter what I hit on the keyboard it doesn't come back. The only solution is to put ...