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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2answers
288 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 ...
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2answers
220 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 ...
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3answers
2k 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 ...
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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 ...
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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 ...
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1answer
1k 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?
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1answer
27 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 ...
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1answer
94 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 ...
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1answer
33 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 ...
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1answer
1k 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 ...
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2answers
157 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 ...
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1answer
642 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 ...
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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 ...
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2answers
3k 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 ...
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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 ...
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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 ...
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1answer
2k views

Hardinfo doesn't display anything in the “Sensors” section

Is there a way to make Hardinfo to display results on "Sensors" section?Currently as much long I wait it doesn't display anything.I have installed lm-sensors if that matters,but still nothing.
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1answer
251 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 ...
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2answers
12k views

nvidia-settings not working properly

I posted a question before at Dell monitor not detected (Ubuntu 11.10) but I figured it's best to create a separate question since the real issue at hand is not really tied to my monitor and the info ...
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2answers
956 views

An new monitor cable messed up my resolution

I was having trouble with the old VGA cable I was using for my monitor. So I got a new one off of Amazon real cheap, it says it's High Res HD15 on the posting I got it from. However when I boot into ...
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1answer
992 views

“Can not display this video mode” error during boot, followed by empty desktop

On my computer, I replaced windows XP with Ubuntu 11.04. When I start up my computer, I get the message 'Can not display this video mode - optimal resolution 1280 60Hz', in a black screen. After a few ...
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1answer
54 views

Screen has broken color set after a while - Ubuntu 14.04

After a while of no activity the screen locks, but when I log in the screen looks like this: :D I am sure it is something with the software, not the hardware as I have never experienced similar ...
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1answer
114 views

Dual Monitors Stayed Mirrored

I am running a T450 with Intel HD Graphics 5500 with Ubuntu 14.04 LTS. I am also using a Lenovo Ultra Dock that supports a DVI input and a VGA input. Whenever I connect two monitors to both the DVI ...
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1answer
282 views

Monitor Does Not Wake Up

I have Xubuntu 14.04 installed on two PCs, each has its own monitor, different brands. With both PCs, if I turn off the monitor by power switch, turning it on does not work. In other words, when I ...
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1answer
123 views

How can I mirror one of the screens in a 3-monitor setup?

Is it possible to have 2 extended monitors and get the third being a mirror of one of the two extended? I'm pretty sure it's not possible through the interface but it may be possible through ...
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1answer
210 views

How to do monitor brightness changes on the desktop like on the laptop?

On a laptop you usually have working keys for changing the backlight and you see OSD notifications while changing them. How to patch this up for “normal” desktops? How to get parts of this going?
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1answer
1k views

How to setup Asus MB168B USB monitor in Linux Mint?

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 ...
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1answer
382 views

external monitor can't display max resolution

I had been using an external monitor, an old Dell Inc. 19" with Ubuntu 14.04 for a while now, The resolution it displayed at was something like 1366x768 or 1366x1024, I can't remember exactly which ...
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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 ...
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2answers
2k views

Can I use my laptop as a second monitor for my desktop?

I want to know if its possible to use my laptop as a second screen. Both my laptop and desktop have Ubuntu 12.04.
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1answer
2k views

Set monitor refresh rate [closed]

The system: OS: Linux Mint 15, Graphics card: Nvidia GeForce 9500 GT, Drivers: nvidia-310 proprietary drivers. The problem: My monitor has a recommended refresh rate of 60hz, and I want to have it ...
1
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1answer
2k views

How to make Ubuntu 12.04 desktop session start on boot without a monitor plugged in?

I have a home server that I need to access via remote desktop, and I want to leave the server there without a monitor hooked up to it. Everyday the server turns off and turns back on. There is no ...
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1answer
480 views

No GUI when I login to the Enlightment DE (Ubuntu 13.04)

Ubuntu noob here again. I recently installed the desktop environment Enlightenment for Ubuntu 13.04. It was running great until now. I think it may have to do something with the monitor I hooked ...
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1answer
665 views

Monitor won't go into sleep mode automatically after upgrading to 13.04

After upgrading to 13.04 from Xubuntu 12.10, my monitor no longer goes to sleep automatically. In Power Manager, On AC, Monitor, I have it set to put the display to sleep after 10 minutes off after ...
1
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1answer
396 views

lock screen periodically for some time

For the sake of caring about eyes I would like my screen to be blocked e.g. every hour for 5 minutes (or another intervals). Once I used one programme for doing it, but now I can't recall its ...
1
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1answer
1k views

ATI Mobility Radeon HD 4xxx not recognized

I recently installed Ubuntu 12.04 alongside Win7 on my HP Pavillion dv6-2020eg. Ubuntu does not recognize my ATI Mobility Radeon HD 4xxx graphics card. It just says "unknown" in the information box ...
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1answer
540 views

I set xgamma at startup, but it resets

I have a startup command to set my gamma in xgamma; whenever I log in, it flickers briefly to what I have it set to, then goes back to 1. Why? Is there a better way to adjust gamma defaults?
1
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1answer
332 views

Run ubuntu without monitor in 12.10 [duplicate]

HOW CAN I RUN MY UBUNTU 12.10 WITHOUT MONITOR ???? im trying to solve this problem 7 hours please help mee. xorg.conf cant help me. please tell me another solution. i will try everything.. thanks
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1answer
163 views

AO522 ubuntu 12.10 several reboot incase of black screen

My acer aspire one 522 with a new ubuntu 12.10 or Kubuntu 12.10 installation (dual boot with win7) sometimes has a black screen but if I reboot once or more, I can login on desktop. How can I fix ...
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1answer
2k views

Ubuntu 12.10 Server turns monitor black

Possible Duplicate: My computer boots to a black screen, what options do I have to fix it? After upgrading (and after that I did a clean install) to Ubuntu 12.10 Server my Monitor turns ...
1
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2answers
951 views

Do I need the ATI driver or open source for dual monitor setup (ATI HD 4350 - 1GB PCI-e) in Pear Linux 12.04?

I think I covered my question in the title. Right now both monitors are mirrored (both 19" at 1440x900). I guess what I need to know is do I need the ATI proprietary driver or will the open source ...
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1answer
288 views

Problems with secondary monitor in Ubuntu 12.04

I have recently installed Ubuntu 12.04 on my Asus EEE PC 1015bx. I am a true novice with regards to Ubuntu. I started running Ubuntu via usb stick but this seemed to stall often; I think that this ...
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2answers
4k views

Monitor not being correctly detected, restricting screen resolution

I have just updated to 12.04 and I have only one choice of screen resolution now, and it is incorrect (1024x768). I believe the correct resolution for my display is 1366 x 768. It is on an Acer Aspire ...
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1answer
147 views

Monitor Black after Update today 12.04 [duplicate]

Possible Duplicate: My computer boots to a black screen, what options do I have to fix it? Today after installing all available updates, I restarted my PC and my monitor won't display ...
1
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1answer
4k views

How to set the monitor to its native resolution when xrandr approach isn't working?

I am trying to setup my Samsung syncmaster B2030 monitor in ubuntu 12.04. It's native resolution is 1600x900 which I am not getting in ubuntu and which I am trying to get. I tried using xrandr ...
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1answer
227 views

How to maximize windows to the middle monitor with three monitors

I've installed Ubuntu 12.04 LTS and most things are running smoothly. I've managed to set up my three monitors using ATI's Catalyst Control Center. However, I run into problems when I try to maximize ...
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1answer
856 views

Dual Monitors Won't Work

I am running version 12.04 LTS with the additional driver installed for my graphics card; HIS Radeon HD 5450 Silence 1GB DDR3 HDMI HDCP. I have an LG (don't know model) and a Dell (also no model) ...
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2answers
4k views

Ubuntu 12.04 stopped recognizing my BenQ monitor and reduced resolution to 1024x768

A few days ago I installed Ubuntu 12.04 32bit Desktop. It recognized my hardware without a problem (at least that I know of) and all worked fine. I left my system running (it is at work) through the ...
1
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1answer
562 views

Shouldn't System-Settings-->Display “see” the monitor correctly?

This is a 12.04 Intel 32-bit system with 8GB Ram and a Gigabyte GT220 NVidia graphics card. The resolution displayed by System-Settings-->Display is correct, but the monitor is detected as "Laptop", ...
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2answers
781 views

How do I to make a second monitor work as second desktop?

I have laptop HP Compaq 610 on Intel, and I want to add an additional monitor. I would like this monitor to be a second desktop and not a part of the current desktop, because my laptop resolution is ...