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
157 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
187 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 ...
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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
784 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
271 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
3k 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
140 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
202 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
807 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 ...
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1answer
553 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
660 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
994 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
389 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

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 ...
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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
939 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
630 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
561 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
894 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
5k 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
581 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
508 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 ...
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3answers
717 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 ...
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1answer
381 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 ...
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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 ...
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1answer
489 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...
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0answers
21 views

The UBUNTU Graphics Catch 22

Trying to use a Live DVD to run Ubuntu 14.04.1, I get the "Monitor signal out of range" error. I hit ctrl-alt-F1 to bring up the command line. I do sudo nano /etc/default/grub and remove # from ...
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0answers
11 views

Monitor not booting up with PC - Ubuntu 14.04

I've recently made the conversion from windows 7 to ubuntu 14.04 and loving it! ...Until this morning when I've tried to boot up my computer which seems to be booting fine, but my monitor is ...
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0answers
48 views

Mirroring screen -> resolution problem

I have a ASUS N53S laptop, it has a 1920*1080 resolution build in screen. If it matters: GPU is Nvidia GeForce GT 550M. It has a VGA port which I don't/rarely use and a HDMI port. In my HDMI port I ...
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0answers
187 views

nagios NRPE CHECK_NRPE: Socket timeout after 10 seconds

Getting following error on nagios server root@VMb:/usr/local/nagios/libexec# ./check_nrpe -H 54.255.1.99 -n CHECK_NRPE: Socket timeout after 10 seconds.
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0answers
26 views

Opening Firefox on second display at startup

I have attached two monitos: 1 dvi (primary) 1 HDMI. I have added this at startup app list to load Firefox at bootup: firefox -P TV -url "http://mylocaldom.com" -no-remote This is the output of ...
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1answer
169 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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0answers
30 views

Monitor goes sleep during fullscreen black scene

My monitor (Samsung SyncMaster 171s) turns into sleep mode for few seconds when there is totally black scene in fullscreen (for example: between two scenes in a movie). How can I disable it? I'm ...
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0answers
29 views

Ubuntu 12.04 Server monitor goes into sleep mode (no display) after fresh install [duplicate]

For some reason I can boot and either use Ubuntu 12.04 server edition, or desktop version. I can live boot the disk, I can go through the installer, or even use the ubuntu alternate installer. But ...
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0answers
21 views

Automatically detecting and outputing to s-video at startup

After combing the Internet I have developed a script that is capable of checking whether I have a monitor connected to my VGA port and switching to my s-video port if not #!/bin/bash # if no vga then ...
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0answers
32 views

Dual vertical monitors messes my desktop

When I enable my two monitors in vertical positions My desktop files get dispersed vertically among both screens and the file icons on the upper screen are displaced, they look like they are ...
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0answers
327 views

Detected displays wrong after upgrade to 14.04

upgrade to 14.04 - screen display finds 1 built-in monitor, however I have 2 identical "LACie photon20vision II" screens (neither Built-in) attached to a ATI Radeon card. It does not seem to be ...
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0answers
114 views

Can't set custom resolution with TV and GT610, xrandr and Nvidia woes!

So, I've looked around, and I know nothing about xrandr and the lot. I thought I had my display fixed, but it kinda... Pans, or scrolls, when I move my mouse to the edge of my display... Anyone know ...
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0answers
68 views

Laptop screen blank when I connect an external monitor (which works)

I have connected an external monitor to my laptop via VGA. However I can't get both working at the same time. What I wanted was for the external monitor to be a continuation of my laptop, however when ...
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0answers
54 views

Monitor stays black after plugging it in

I am running Ubuntu 12.04 on a PC using lightdm. When I have the monitor plugged in from the start the system boots just fine and everything works as expected. When I plug off the monitor, the system ...
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1answer
81 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.
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0answers
67 views

HDMI Display Screen Resolution Resets

After I managed to solve my issues with the HDMI - VGA converter by reinstalling Ubuntu, I was wondering why Ubuntu keeps my resolution settings in some cases and loses them in others. I've written a ...
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0answers
169 views

Can't get HDMI out working on Lenovo G560

Can I get Dolby To My PC but no on HDMI out please (our DTS whatever) On Lenovo G560 xrandr: Screen 0: minimum 320 x 200, current 1366 x 768, maximum 32767 x 32767 LVDS1 connected primary ...
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1answer
733 views

Desktop icons appear on wrong monitor

I have a laptop with Xubuntu 13.10 and to the right of the laptop is a monitor located. The monitor is the primary: I set the option "Primary" in the settings editor ...
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1answer
59 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 ...
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0answers
101 views

Turn off monitor only after locking screen

I see there is no setting to turn the monitor off after the screen is locked unlike the one for screen locking which can be set to act after the monitor has been turned off. I do not want the system ...
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1answer
152 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 ...
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1answer
26 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 ...