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
votes
0answers
603 views

Ubuntu Server changing Monitor from DVI to VGA

i have a little problem with my Ubuntu Server 12.04. I installed it yesterday with a DVI monitor connected. With the DVI Monitor, everything works fine. But when I try to connect it with an other ...
2
votes
1answer
1k views

xorg.conf configuration help on Ubuntu 12.04 ppc

I did the Xorg -configure or X -configure and I have a xorg.conf file but with errors, so this is something I found out running ddcprobe: oem: nouveaufb memory: 7088kb edid: edid: 1 3 id: 2292 ...
2
votes
1answer
833 views

External monitor stopped working [closed]

I have an ASUS notebook with ubuntu 12.10. My external monitor was working fine but after unpluging/repluging it, it's now detected as "unknown" in my display settings, and I don't get any signal on ...
2
votes
1answer
3k views

Trying to get 2560x1440 resolution

1I have this motherboard and this monitor. It is supposed I could get 2560x1440 resolution using HDMI 1.4, but i don't know how.. NOTE 1: I have a HDMI cable and a DVI-HDMI adapter, I don't know if ...
2
votes
1answer
3k views

Ubuntu 12.04 dual monitor “unknown monitor” problem

I have a problem with my monitors, one of them is detected as samsung electric company 19", and another is unknown and I cant set resolution for it higher then 1024x768.
2
votes
1answer
461 views

Can't connect second monitor with HP Pavilion g6 over Ubuntu 12.04

I am using HP Pavilion g6 notebook computer with Ubuntu 12.04. I am unable to connect second monitor via HDMI or VGA. I am trying this for few days now and fed up by now. I am using Intel graphic ...
2
votes
0answers
220 views

Lower resolution with DVI and NVIDIA driver than with VGA [duplicate]

First my setting: Machine: Linux ubuntu 3.2.0-36-generic #57-Ubuntu SMP Tue Jan 8 21:44:52 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux Graphic Card: I have an old Quadro NVIDIA card 01:00.0 VGA ...
2
votes
0answers
192 views

How do I change the maximum resolution of my computer for multiple monitors?

I am trying to enable three monitors for my setup in Ubuntu 12.10. My card is a Raedon 5700 HD series. When I try to extend my display to any additional monitors, I get the following error: required ...
2
votes
0answers
134 views

monitor calibration does not work - the button to calibrate is grey

The calibration of my monitor does not work the the button to calibrate is grey. Pls take a look at the linked screenshot. Do I need to install any further packages to calibrate the monitor? ...
2
votes
0answers
791 views

I can't set 1280x1024 resolution in 12.04

After installing a fresh Ubuntu 12.04 on my PC, Ubuntu can't detect my monitor which is a Phillips 190c 19". With 10.10, I used 1280x1024 and on Nvidia drivers I was able to see my monitor brand. ...
2
votes
2answers
4k views

Correct Display configuration. Errors while trying to arrange displays

I am trying to set up my tv with my laptop trough a VGA cable. The display application in Ubuntu throws a lot of errors to me and I have given up in trying to do it myself. I try to apply the 1920 ...
2
votes
1answer
860 views

Installing nvidia driver?

I have ubuntu 12.04 running on my laptop. I've been trying to install a 2nd monitor on it, but ubuntu does not detect the second monitor. I have an nvidia card on my laptop, and ubuntu was using the ...
2
votes
2answers
312 views

How do I show the same content on both screens?

I use 12.04 LTS on a HP 6530b (laptop) and an external Samsung SyncMaster T220HD. It works, however - the laptop and the external monitor shoes as dual monitors and I should like to have only one ...
2
votes
0answers
399 views

Ubuntu lost my external monitor

I installed ubuntu on an old Dell Latitude D630 laptop from a USB stick. I had an external monitor hooked in at the time, and during the installation, ubuntu found my external monitor without a ...
2
votes
0answers
2k views

Second monitor on NVidia card cannot detect proper resolution

A friend had given me one of his extra monitors, and even in Windows it gave me trouble in producing the right resolutions. I switched back to Ubuntu with the release of Pangolin but can't get it to ...
2
votes
1answer
520 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
votes
1answer
710 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 ...
2
votes
0answers
446 views

Why can't I run dual monitors in widescreen mode at the same time? [closed]

I have a widescreen laptop, and a Viewsonic widescreen monitor. For some reason, I cannot have both of them running in widescreen mode at the same. In other words, if I have my Laptop in widescreen, ...
2
votes
0answers
1k views

External monitor resolution stuck at 1024x768 [closed]

I have an HP-Compaq 615 laptop that I connect up with an external 1440x900 monitor so that I can work with two screens. I was unable to get it to work correctly under Natty. However, when I did a ...
2
votes
0answers
2k views

How to automatically detect my display (monitor's) compatible settings? [closed]

I changed my monitor recently and the settings the monitor expects is 1280X1024@60 Hz. Every time I restart my Ubuntu after a shutdown, the default setting that comes up for the monitor is ...
2
votes
1answer
143 views

Ubuntu detects another monitor when I don't have any other monitor [closed]

Ubuntu detects a DVI monitor even if I don't have any. I only have a VGA monitor plugged. This is a problem because the game I play crashes when I have two monitors. But I only have one monitor ...
2
votes
0answers
2k views

Dual Monitor: HDMI no signal, not recognized in Ubuntu [closed]

brand new Asus VE247H monitor, connected by VGA, is not getting recognized in Ubuntu 11.04. Monitor Preferences does not recognize a second monitor ('Unknown'). ATI Catalyst Control Administrative ...
2
votes
0answers
297 views

Notebook + external monitor = system crash [closed]

I would like to use an external monitor with my HP Probok, but when I connect the cable to my notebook, it's screen turns black and the external screen starts to flicker pink and green. I use 11.04. ...
2
votes
1answer
179 views

Windows list (alt+tab) is not centered after disconnecting from external monitor

I'm using a laptop and connecting it to an external monitor. After disconnecting from the external monitor, the list of windows (pressing and holding Alt+Tab) is not centered. It is located in a place ...
2
votes
0answers
1k views

Monitor not Detected so I have a resolution problem [closed]

I installed Ubuntu in an Old PC and the problem is that Ubuntu is unable to detect my monitor which is Samsung SyncMaster 591s . When I go to System -> Preferences -> Monitor , There is no option to ...
1
vote
2answers
2k views

why is my second monitor stuck on 4:3 at 1024X768

I have been using a second monitor for a while now, and until I connected it to our TV via the VGA port everything went well. Then, yesterday morning, after I unplugged the VGA cable from the TV and ...
1
vote
2answers
295 views

Rotate monitor 2° counterclockwise?

Ubuntu's Monitor Preferences tool (listed as Monitors in the Dash) is able to orient the screen Left, Right, Normal or Upside Down, but is there a tool that can rotate the screen just a little? My ...
1
vote
1answer
327 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
137 views

Desktop monitor brightness adjusting

Is it possible to adjust desktop monitor brightness like on laptops? Yes all desktop monitors have separate menu for it. But is it possible to change this to something like Winkey+(F1..F12)? ...
1
vote
2answers
433 views

Ubuntu eye strain problem?

Hi I saw lots of posts here regarding Ubuntu eye strain issue. But none could answer my question. I use Intel i5 processor, AMD radeon Graphics card. When I use my Win 7, there is no issue with my ...
1
vote
3answers
3k views

Laptop monitor turns off when external monitors plugged in

Just a heads up, I'm brand new to ubuntu and linux as a whole, so go easy on me. I just installed ubuntu 13.04 on my Thinkpad T430. A few bumps along the way, but I'm learning this new system ...
1
vote
3answers
5k views

Ubuntu 12.04 login screen freezes / monitor problems

Just bought a new computer and installed Ubuntu 12.04 32-bit version. After I enter my password, the screen freezes either at the login screen or with the ubuntu 12.04 LTS logo at the bottom. I ...
1
vote
2answers
2k views

Monitor shuts off after installing Ubuntu 11.10 64-bit

I installed Ubuntu 11.10 64-bit successfully in nomodeset option, but when I boot the installed system the monitor shuts off, so I would like to know how to fix this like I fixed it in the ...
1
vote
1answer
2k views

How to connect USB monitor? [duplicate]

I have a Mimo monitor and it runs USB. I tried and failed and I don't know what to do......All i get from the USB screen is just a green screen. Anyone could help me?
1
vote
1answer
74 views

Network activity monitor

I would like to ask you, if you know any SIMPLE and LIGHTWEIGHT application for monitoring network? I am not looking for network activity monitor for servers, like daily stats etc, i need realtime ...
1
vote
1answer
26 views

Stop display from fading & consequently shutting monitors off when screen is locked on 14.04

So far I've tried what's shown in the image below, and I also restarted my system afterwards to see if that helped, but still, when I hit WIN-L my screen will lock and slowly start to fade to black, ...
1
vote
1answer
203 views

How to turn off screen (headless installation)

How can I turn off screen? None of the answers here helped me. I tried sudo vbetool dpms off but that failed silently and the screen remained on. This is a headless Ubuntu server installation on a ...
1
vote
1answer
94 views

How come I don't see grub every time I boot? [duplicate]

I have noticed that when grub boots up I don't get a black screen on my monitor. I want to make it so that it will show every time I boot, not just when I turn it off manually and then turn it on ...
1
vote
1answer
134 views

How to measure battery life on Ubuntu 14.10

So, I am rather happy with my battery life. I just want to know how I can measure how much time I actually get out of it. All the posts about battery life and Linux/Ubuntu/etc seem to be about ...
1
vote
1answer
63 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
2k views

How to setup Asus MB168B USB monitor in Linux Mint? [closed]

is the first time I write here. I bought an external usb monitor http://www.asus.com/it/Monitors_Projectors/MB168B/; I have an Asus s56cb with dual boot, linux Mint 17 qiana and windows 7. On ...
1
vote
1answer
2k views

Monitor not turning off in 14.04

I have a freshly installed ubuntu 14.04. In settings "Brightness and locking" I had the following Settings: Turn monitor off after "10 Minutes" Locking: On Monitor locking after "5 ...
1
vote
2answers
2k views

How do I get the two external monitors connected to my laptop to stop mirroring each other?

I have a Lenovo T440 laptop on 12.04 with two external monitors attached (running through one VGA port that goes to this splitter). Right now Ubuntu is counting the two external monitors as one (they ...
1
vote
2answers
195 views

Custom Shortcut for switching off the display

I want to add a Custom Shortcut (Keyboard → Custom Shortcuts → Add) for turning off the display but to do that, what 'Command' should I should use? I want to set a button to switch off the ...
1
vote
1answer
798 views

Adding a large asus monitor resolution

I am trying to set up this monitor: http://commercial.asus.com/product/detail/vs247h-p-lcd-monitor I am able to connect the monitor and use it in various screen configurations, but have not yet been ...
1
vote
1answer
1k views

Failed to open and save monitior configuration

I try to use Ubuntu 12.04. from USB with a 4 GB peristent part. First i changed some monitor settings (have two). After rebooting I got the error message: Could not apply the stored configuration for ...
1
vote
2answers
4k views

cant change my screen resolution

Hi i have a problem with my screen resolution after installing ubuntu 12.04 I think i have the right drivers, but for some reason the resolution is way to small. It is 640 x 480 and thats the only ...
1
vote
1answer
3k views

Ubuntu Server 12.10 No GUI Headless Boot and/or Reboot

I have a headless server running the latest Ubuntu Server 12.10. It does not have any GUI at all. I am having the same issue that others are having which is that when you boot or reboot without a ...
1
vote
1answer
2k views

Ubuntu 12.04 monitor goes to sleep and won't wake up

We have about 80 systems running ubuntu 12.04 64bit desktop edition. We are facing a strange problem. Everything works fine except that after the monitor goes to sleep, if we don't wake it for long ...
1
vote
1answer
296 views

Mouse gets stuck when switching screens

Hi I have the latest amd drivers, and 3 monitors setup. When moving the mouse from one screen to another it seems like it gets stuck, and I have to keep moving it for it to finally switch, its really ...