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.

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2
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1answer
521 views

Keep setting the external monitor

Every time I turn on my notebook I have to configure the resolution of external monitor with the "grandr." Always turn off the notebook display and change the resolution of external monitor. I wonder ...
2
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1answer
719 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
173 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
34 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. I'...
1
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1answer
26 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
259 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: ...
1
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1answer
385 views

Dual monitor resolution is ok, but display is stretched in ubuntu 15.10

i have a fresh install of Ubuntu 15.10, with a dual monitor setup on a Nvidia GT620. Both monitors are Samsung SyncMaster S23B350, left monitor is with on a VGA to DVI adapter, and the right monitor ...
1
vote
1answer
272 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
104 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
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1answer
65 views

Mouse flickering on one monitor

I've done quite a bit of googling to find a solution to this but couldn't find anything. I have two monitors, an LG one and a Samsung one and my mouse disappears and flickers on the Samsung one. Also ...
1
vote
1answer
663 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
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1answer
96 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
864 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
449 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
239 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
185 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
456 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
38 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
828 views

Lenovo USB Monitor - LT1423p

Morning all, I have recently aquired a USB Lenovo monitor, LT1423p but it is not working in Ubuntu 13.10. I have read through the forums and googled like a madman and can find alot of information ...
1
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1answer
300 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
826 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
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1answer
836 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
2k 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
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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
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1answer
165 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
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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
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1answer
673 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
42 views

Acer H243H external monitor distorted in Ubuntu 16.04 and up

I've been using an Acer H243H monitor for a while with Linux for a while without problems, but now, I've been having serious distortion problems. In Ubuntu 16.04 and any Linux distro based upon that ...
0
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1answer
102 views

Ubuntu 64 bit 16.04 LTS on laptop Hp Pavilion X2 external HDMI monitor stopped working after latest updates

It seems that Ubuntu is really a problem on HP computers. Now, the new problem is that after the last updates of 16.04, the HDMI port stopped working. I tried with a different monitor and the problem ...
0
votes
1answer
24 views

airodump-ng not working

I am a beginner to Linux. I am having trouble with the command airodump-ng mon0. As soon as I do it I see the error: Interface mon0: ioctl(SIOCGIFINDEX) failed: No such device. I have tried: ...
0
votes
1answer
146 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
100 views

How to run in low resolution 640x480

I need to reduce the resolution to 640x480 to connect to my tv that can detect only that resolution.Any idea on how to do it so that my laptop screen resolution doesn't get affected? Ubuntu 14.04 can'...
0
votes
1answer
26 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
97 views

Help in correcting or bypassing a bug resulting shifted screen in my ubuntu

On Ubuntu 15.10 using an nVidia gtx 960 card, and life was great until nVidia released driver 355. Everything was fine with the 352 series and when I updated to 355 I got the shifted screen bug. As ...
0
votes
1answer
60 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
132 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
215 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
164 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
24 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
44 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
49 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
230 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
78 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
129 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
111 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
531 views

could not switch on monitor configuration

On my asus x553 I have wiped the hard drive to eliminate win 8.2 and installed Ubuntu 14.04. On boot up I get the Error message could not switch on monitor configuation and als ocould not set ...