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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1answer
912 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
97 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 ...
1
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1answer
558 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
845 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
251 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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1answer
776 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
464 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
605 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
281 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
971 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 ...
1
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1answer
327 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
159 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 ...
1
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1answer
228 views

Simulate monitor device

I'm having an old PC running Ubuntu desktop edition, with no keyboard / mouse / screen - I'm accessing it only via ssh. I'd like to run X11 for using VNC - however - startx commands returns Fatal ...
1
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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
886 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
283 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 ...
1
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1answer
146 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
219 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
838 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
3k 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
558 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
736 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 ...
1
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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 ...
1
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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 ...
1
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1answer
408 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 ...
1
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1answer
3k views

Does Ubuntu support 3D monitors?

A couple of manufacturers are coming out with 3D monitors, primarily useful in gaming. It looks to me like they broadly rely on proprietary Windows drivers to work. Am I right? Are there existing ...
1
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1answer
1k 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
967 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!
1
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1answer
675 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 ...
1
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1answer
953 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 ...
1
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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 ...
1
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4answers
603 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 ...
1
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2answers
523 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 ...
1
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3answers
742 views

Monitor resolution wont change

I recently upgraded to ubuntu 10.10 , and installed the proprietary drivers for the ATI video card.Now when i go to change monitor from Mirror to individual or change the resolution it asks for me to ...
1
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1answer
404 views

What is an affordable monitor compatible with HDMI and Ubuntu?

My main computer is a laptop and I would like to buy an external, bigger monitor for it. I already tried one, but it only had a normal VGA connection. Unfortunately the screen flickered a lot, and I ...
1
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2answers
2k views

Nvidia GeForce 8500 GT, Dell U2311H monitor, DVI-D cable issue

I've have my Dell U2311H monitor working fine at 1920x1080x60hz using the DVI-D cable that came with it (18 pin, single-link). When I try and attach a longer 5m cable which supports Dual-link (24 ...
1
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1answer
504 views

I have a HP Probook 4510s and everytime I plug it in, the monitor dims

anyone else notice this on their laptops, or is it just mine? Ubuntu 10.10 by the way...
1
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0answers
18 views

Screen does not come back on after overnight on HP Z230 workstation

I'm on Ubuntu 14.04.2 on a HP Z230 workstation with dual monitors. Very often in the morning, the screens are just blank and don't seem to wake up from suspend / power save mode. To fix it, I need ...
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0answers
27 views

Ubuntu can't detect my second monitor

I know that there were already several people with the same problem, but I couldn't figure out how to solve this problem myself. I am a complete beginner with Linux and Ubuntu (I am using 12.04) and ...
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0answers
18 views

Monitor shown as 16:10 instead of 16:9 [migrated]

I am using Linux Mint 17.1 Cinnamon on a Dell Latitude E6540 with a Dell U2713hm monitor, the displays are not mirrored, and arranged next to each other. The monitor has an aspect ratio of 16:9, ...
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1answer
104 views

Color Problems on New Install of 14.04

I'm new to Ubuntu (and Linux), and just installed it next to Windows 7 on my Dell Inspiron 5737. Everything seems to have worked great except that the color is very messed up on my screen. It is ...
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0answers
153 views

Unable to monitor mode and injection work on my wifi card bcm43142 in kali linux [closed]

I have dual booted my laptop with kali linux. After working on it somehow I managed to get work my wifi. But I'm unable to start monitor mode and injection. When I execute airmon-ng start eth1 it ...
1
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1answer
32 views

Glitchy screen when using DVI and main user

I recently got a new ASUS monitor, but I have a big issue when trying to get past the login screen. When using the HDMI cord this does not happen. When using the DVI I am able to see the login screen ...