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
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
64 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
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
224 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
884 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
950 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
156 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
60 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
780 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
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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1answer
309 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
907 views

I need a netspeed indicator for Ubuntu 14.04

I have a 3G mobile broadband connection that keeps changing network speed according to location and time and so I relied heavily on this applet ...
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2answers
1k 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
1k 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 ...
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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
468 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
636 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 ...
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1answer
331 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 ...
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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
330 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
160 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 ...
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2answers
908 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 ...
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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
220 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
848 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 ...
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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
761 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 ...
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1answer
3k views

Monitors not detected after installing Nvidia drivers

I've recently installed Ubuntu 11.10 to my PC. I've have Windows 7 on it as well. When I first started up Ubuntu, it detected both of my monitors. I then updated the drivers and restarted, but when ...
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1answer
1k views

How can I force one single refresh rate across both my monitors

I have to different but similar monitors. According to nvidia-settings my main monitor is running at 59.93 HZ while the other runs at 59.88 HZ. In X Video settings I have enabled VSync and that it ...
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1answer
414 views

When using dual monitors, left monitor uses 1024x768 and right monitor uses 1920x720. Why its slow?

I have one PC where I have my main screen using 1024x768 resolution and my another screen using 1980x720 resolution. But why its so slow, is there any way to make it faster like normal? I had the ...
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1answer
2k views

Dell U2711 monitor USB hub does not recognize/auto-mount USB disks

I recently purchased a Dell u2711 display. The monitor works well in Ubuntu 11.10, that is, auto recognized and working at full resolution with the included DVI-D (dual link) cable. My problem is ...
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1answer
986 views

How to disable screen blanking when external monitor is connected and lid is closed

How to not blank the LCD screen when closing the laptop lid and using an external monitor? I'm using 11.10 Oneiric and I've already tried the dconf lid settings but without luck!
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1answer
687 views

Choppy ATI Radeon performance multiple monitors

I am using Ubuntu 11.10. I have a ATI RADEON HD6850 card (made by ASUS) and 3 monitors (DELL U3011 (30") and 2x DELL U2410 (24 ")). I recently upgraded to Intel Sandy Bridge E 3930K processor and ...
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1answer
564 views

No graphics card recognition

Ubuntu doesn't seem to recognize the graphics card on my new Samsung rv515. In desktop preferences I cannot chose widescreen resolution (or any alternative resolutions, actually). I saw some supposed ...
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1answer
968 views

Trouble recognising external monitor

I'm a first time Ubuntu user (using Ocelot) and know very little about computers. My laptop screen is broken and I'm trying to connect to an external monitor through a VGA cable but I can't get the ...
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3answers
6k views

Why can't I get my Dell Latitude to output to an external monitor at 2560x1440

I've got a Dell Latitude E6520 and I'm using the E Port dock to get a DisplayPort output to plug into a Dell U2711 monitor. The native resolution of the monitor is 2560x1440 and I'd really like to ...
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4answers
611 views

How can I get both of my monitors working with Ubuntu?

I have two W2252TQ Flatron screens, both were working in windows 7 prior to installing Ubuntu 10.04. The active monitor is connected via DVI with the VGA one dark. If I disconnect the DVI one then the ...
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2answers
524 views

Runs ok in 10.10, screen flickers continuously like neon light in 11.04

I have an Alienware M17x R3 laptop with 460M nvidia card. I just got it brand new from Alienware today. Running nvidia driver doesn't work in 10.10 (GDM doesn't load at all), so I switch back to ...