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
450 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 ...
1
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1answer
586 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
249 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
897 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
323 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
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
210 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
849 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
279 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
142 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 ...
1
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1answer
215 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 ...
1
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1answer
824 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
556 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
703 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 ...
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
404 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
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 ...
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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
956 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
658 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
936 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
600 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
517 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
737 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
395 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
501 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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1answer
18 views

How to make PXE boot auto detect monitors and setup dual monitors

I'm currently can boot a Ubuntu PXE. but the problem is with multi-monitors. I have to run xrandr command to get the dual monitors up. with suggest from How do I setup dual monitors in XFCE? xrandr ...
1
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0answers
10 views

gcm-calibrate without hardware sensor

My monitor won't allow me to set the contrast when using DVI. And ubuntu/gnome won't allow me to set it via software without some fancy color calibration sensor. on system settings > color the ...
1
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0answers
38 views

Dual monitor screens are reversed only in login screen

Today I installed Ubuntu 14.04 on my computer. I have dual monitor setup, and they work perfectly when I'm logged into the operating system. But every time I have to login in the login screen, the ...
1
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0answers
33 views

The resolution is squashed!

I just installed Ubuntu 14.10 from the .iso. It worked fine the first time, but the second time I booted it up, the resolution was really messed up. The monitor was displaying everything really ...
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0answers
36 views

How to get native resolution of a monitor?

My Ubuntu installation seems to have magically guessed my monitor's native resolution (it's the mode it's set to on startup). Unlike most, my monitor's native resolution is NOT its highest ...
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0answers
209 views

No HDMI video output from GeForce GT 330M - Ubuntu 14.04 LTS

I have a Dell Vostro with an Nvidia graphics card. Although the VGA output works fine, when I connect up a monitor on the HDMI output, Ubuntu (14.04 LTS) recognises it, but the screen is blank (no ...
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0answers
43 views

Monitor Printers remotely over SNMP in Ubuntu

We have a lot of printers in company and we want to monitor Page Counts, daily report,etc. we tested a lot of monitor tools but they did not meet our requirements, and we found this software for ...
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0answers
349 views

How do I get 144hz monitor refresh rate to work with the open source ATI driver?

With the open source ATI drivers, when I set 144hz in xrandr I get strange full-screen stuttering when I move some windows (especially my chrome browser, but other windows as well). I don't get these ...
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0answers
149 views

Dual-monitor seems to be default in Ubuntu 14.04, and I try to solve it, but close the wrong monitor

I'm using Ubuntu 14.04 LTS. My mouse goes outside the screen when moving to the right edge, so I guess something wrong with my monitor setting. lt seemed that "dual monitor" was set as default ...
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0answers
35 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 ...
1
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1answer
129 views

External monitor horizontal lines problem

I got problem with my external monitor (Dell U2312HM) connected to my laptop (Radeon HD4570). There are appearing some horizontal lines. It is like blinking or flickering, it's actually quite hard to ...
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0answers
22 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
196 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
647 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
54 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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0answers
343 views

External Display on HP 2013 UltraSlim-Docking Station with Ubuntu

I have an Elitebook 840 G1 with Dual ATI + AMD graphics and HP 2013 UltraSlim-Docking Station. I want to plug external monitor to the one of Displayports located on the Dock. The external monitor ...