Ubuntu :: No Picture On Laptop Screen, Only On External Monitor?
Jul 3, 2010
The laptop is a samsung X30 and i spent days trying to install ubuntu 10.04 unsuccesfully as there was no clear picture on the screen, just a black and purple splodge. I then saw a post on these forums discussing the default resolution of ubuntu and how it is incompatible with some machines so via VGA cable i connected it to my TV and sure enough i could see what was going on and finished the installation process. I assumed that once ubuntu was fully installed i would be able to change the resolution using the monitor preferences but none of them worked. I am now faced with the problem that unless plugged into the TV i have no picture on my laptop, does anyone know why my laptop screen wont work with ubuntu and how
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Nov 23, 2010
I have Dell Vostro 3300 with Intel HD integrated graphic card and Samsung SyncMaster 2343BW external monitor.
This is the output of xrandr:
It runs on 2048x1152 full resolution, however, the picture on the monitor is blurry, it vibrates and looks like old TV with interlacing.
I tried to disable output to LVDS screen on laptop using xrandr but it doesn't help/
Previously I had HP laptop with integrated Intel and OpenSuse 11.0 and the external screen worked normally.
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Aug 7, 2011
I am having problems getting my external monitor to work. When I plug in the monitor, both the laptop screen and the external monitor go black. When I unplug the monitor, the laptop screen works again.
When I startup with the external monitor plugged in, neither screen works or teh computer hangs or something.
I have had the external monitor going on a couple of occasions. I did manage to configure my monitors through System Settings > Display. I turned off the laptop monitor as I just want to use the external. But after rebooting, things didn't work.
I have a Thinkpad E420, Fedora 15
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Jul 2, 2010
I'm a new user and recently installed ubuntu on an old samsung laptop, during the installation process i couldnt see anything on the screen and came to the conclusion that ubuntu's default resolution was different to that of the laptop screen so i plugged it into my TV and sure enough it worked however i still only have a picture on the tv, ive tried all the resolutions available in the 'monitors' box but nothing, does anyone know how to fix this?
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Mar 28, 2016
I am running Debian 8.3, and I'm running Gnome 3.14.1.I have an external monitor plugged in with HDMI, and while Linux is loading both screens are on duplicate. Once the GUI kicks in, only the external screen works, so I have to enter my password blindly. Then, I open a terminal and run
Code: Select allsudo echo 950 > /sys/class/backlight/intel_backlight/brightness
and the laptop screen turns back on.
I'm wondering: Is there a way to streamline this so that it happens on boot, but after GNOME loads?Or: Is there a better method to solve this?
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May 10, 2011
I have an HP Pavilion dv9000 which I would like to use completely with any Linux OS. I have tried to install Linux Ubuntu 10.04.1 but it appears that it doesn't recognize the external monitor and ends the installation. I have a clean hard drive that I could install but I do not know which of the two drives I should replace. I can only get into windows in safe mode and I would think this may have something to do with the problem, don't no.
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Jan 16, 2010
I have an Asus z9100 laptop with an Intel 855GM integrated graphics chip, which is running Karmic (the purpose of the laptop is to be a MythTV frontend so my understanding is that it needs to run 9.x in order to connect to the MythTV 0.22 backend - I have installed and configured this using the installable Mythbuntu package) and the laptop is subject to this bug which causes random freezes:
[URL]
So, following advice for similar freezes I've seen, I have added the following options to my grub menu.lst on the kernel line:
nolapic nomodeset
and I have edited xorg.conf so that it makes use of the vesa driver instead of the Intel driver. This results in no freezes and if I wanted to watch Myth on the laptop screen I'd be squared away. However, the laptop has a damaged screen so the point was always to output the signal to an external monitor via its VGA out.
When I attach the external monitor and boot with the setup as described, the external monitor is never detected. But I noticed that if I remove the "nolapic nomodeset" from the kernel boot line, it is detected. However, signal is only output to it during the earliest part of boot (when the Ubuntu logo is in the center of the screen before the full-screen graphic with the animated progress line), after which the external monitor goes black and all the display output goes to the laptop screen. The external monitor power button is still lit up green as if it has been detected and is receiving signal, but it's just a black screen.
get the signal out to the external monitor after the initial part of the boot process, using the vesa driver? Here is the current state of my xorg.conf:
Code:
Section "Device"
Identifier "Configured Video Device"
Driver "vesa"
EndSection
[Code].....
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Jan 2, 2010
I have a netbook (Acer Aspire One) I'm running Slackware 13. and usually, I prefer to connect an external monitor. When I switch my machine on with the monitor connected, the display is duplicated on both screens and since I just want the netbook's screen to be off and only see the display on the external monitor, I can doxrandr --output LVDS --off
Great! However, it's a hassle to do this every time I log in and I'd like to automate the process if possible. I did some googling and I found that if you want to automate xrandr commands, you can put a script in /etc/X11/Xsession.d/ (see this). I wrote the following script to automate my xrandr commands and since the Xsession.d directory didn't exist, I tried creating it. The script was called 45custom-xrandr_settings, as the one on the RandR wiki is called the same.
Code:
#!/bin/bash
# Check whether the external monitor is connected
[code]...
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Aug 25, 2010
I have an HP EliteBook 8540p laptop with associated docking station. It is running Ubuntu 10.04. Until now I have been successfully running TwinView with the nvidia-195.36.24 drivers - using the built-in LCD screen and an external LCD monitor, connected via an analog VGA cable.I've changed the screen over to a larger resolution Philips LCD, and it works fine over VGA.
However the image is not as sharp as I'm used to with other monitors, so I'm trying to get it working over the DVI port on the laptop docking station.However I have been quite unsuccessful in getting a picture to appear on the external monitor - Xorg is able to read the EDID information from the monitor, and according to Xorg.0.log has absolutely no problems with finding a valid mode and choosing this monitor as "DFP-1", alongside "DFP-0" (laptop display). But no matter what I do I can't get a picture. Xorg.0.log has no errors.
I have unsuccessfully tried: various combinations of xorg.conf options to set "ConnectedMonitor", "CustomEDID" with a EDID .bin downloaded over VGA, etc.a colleague has the exact same laptop and monitor, and has it running fine. However using his xorg.conf still produces no picture.nvidia-settings - tried lots of things a different DVI-connected monitorIt's as if the DVI port is fully functional in every way but its output is somehow disabled. I've also tried other monitors, they don't work either, yet do with a VGA cable.
EDIT: I have checked the DVI cable anything else in terms of enabling a DVI port.
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Aug 17, 2011
My software and hardware information are as follows. I have Fedora 12 and KDE 4.4.5 installed on a Dell Vostro 1500 laptop. I believe it's a 64 bit processor; it's an Intel Core 2 Duo CPU. The external monitor is a Dell as well.
My problem is that my system does not seem to be detecting an external monitor that I have connected. Everything else is working just fine; however, I would like to have the option of attaching an external monitor. When I plug the external monitor into the laptop, the external monitor remains black and appears to be in power save mode. The results of xrandr -q (with or without the external monitor attached: it doesn't appear to change) are as follows.
Code:
How can I get my laptop to recognize that the external monitor is even connected? Let me know if I can be more specific or provide additional details.
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Sep 22, 2010
I recently installed Debian, using the amd64 Network Install .iso. I'm using XFCE4 as my desktop environment, and everything is working well... on my laptop's screen.
My desired setup is to have my laptop sitting on a well-ventilated shelf, closed, and to have an external monitor be my main monitor. I want this because I'm using my laptop as my "home" computer, so it never moves, and I don't like the keyboard/trackpad. My laptop has a VGA output, and I can get my desired setup on my Windows partition (not stating a preference ; just that the hardware CAN do what I want it to).
I've been working my way around the Internet for a few days, now, and I've got the commercial NVIDIA driver installed. If I run sudo nvidia-config --twinview I can get my external monitor to be part of the display, which is great, but it's part of a dual-screen monitor setup, which is not what I want at all, because (a) XFCE's multiple virtual desktops are good enough for me and (b) my graphics card is integrated, and I'm trying to squeeze every drop of performance out of my laptop that I can (1 gig of RAM; the less that my graphics card eats into it, the better). Plus, it'd be annoying to accidentally drop something on my laptop's screen, and then have to dig it out of the shelf in order to undo it. I'm not saying that I'm consistently clumsy, but I'd eventually end up doing it.
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Feb 15, 2011
I have been using Ubuntu for a while now on my netbook, however I have an older HP dv5 laptop that hasn't been used in a couple of years that I would like to format and install a linux distro on. Problem is that it has a very broken LCD screen and I had been previously using an external monitor with it. I had tried to install Ubuntu 9.04 on it at one point but could not progress very far into the installation due to the external monitor. I had also tried using the non-graphical installer but had little success with it as well.
I had thought of removing the HDD from the laptop and putting it into another of my laptops and installing it that way, but the specs are different between the two laptops and I figured that it would not work properly once the HDD was switched back to the older laptop. Is there any way to use an external monitor to install a newer version of Ubuntu? or perhaps is there another distro that is easily installed using an external monitor? My plan is to eventually remove the broken screen all together and only have the external monitor connected, the broken screen is a bit unsightly.
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Mar 1, 2011
I am looking for a way to switch quickly and easily between my Laptop Display and my External Monitor, in Windows I had it configured so that when I plugged my Monitor in it would switch to that and when I removed it it would switch back to Laptop Display. From what I have tried it looks like this isn't possible with Linux, but I would like to get to the stage when I can click an icon to switch (or 1 to go to External and 1 to go to Laptop) My Laptop has an ATI Mobility Radeon HD 4500 Series Graphics Card and I have so far noticed the following issues.
1. If I use the Gnome Monitors instead of ATI Catalist Control Centre it seams to cause some strange issues include confusing Linux on what the max screen res supported by my External Monitor is.
2. When I try and enable/Disable either Display or change Resolution, I am told that I have to reboot before the changes take affect.
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Sep 6, 2010
I have slackware 13.1 installed on my laptop and use kde.I just bought a new external monitor 1680 X 1050. The laptop's monitor is 1280 X 800. From KDE i configured laptop's screen to be inactive and the external monitor at resolution 1680 X 1050. When i boot and enter KDE both monitors are activated, ican't understand their resolution. Then, just when i enter system configuration-monitor-monitor configuration the laptop's monitor automaticly turns off. Then i configure the external to 1680 X 1050 resolution. This happens every time i have to enter slackware. How to setup my xorg.conf file. You can see it below:
[Code]...
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May 13, 2010
I've been unable to connect an external monitor to my laptop running 10.04, even though the resolution and framerate are right. The monitor says something like "unsupported video settings".
In other news, I put the live cd into another computer which relies on a monitor and after the very first screen with the two logos at the bottom, the monitor decides to go to sleep. I try with another monitor and it just seems to have to feed. This is the more important problem, but I wonder if there isn't some built-in problem with 10.04.
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Dec 23, 2010
I don't know if it sounds weird but I've been trying for weeks with no result. I want to plug my external monitor through my laptop's vga plug, close the lid and work on my monitor instead of the laptop's monitor. I looked through the gnome power management settings and when the laptop lid is closed it can only suspend, blank screen, hibernate or shutdown. I can plug my monitor and I have clone displays and it works fine but I can' find a way to shutdown the laptop screen without shutting down the vga outlet. Its a brand new Acer aspire 5734Z with a 15,6 inches screen (wich is why I want to plug in my 19 inches monitor and work on bigger screen)
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Jun 11, 2010
I've got a laptop running Backtrack4 and an external tv/monitor. Is there a program/command/configuration file that I can use to allow my laptop and monitor to connect with one another via HDMI?
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Jul 7, 2010
I am having a Dell ST2410 LCD and a laptop IBM.I want to span my desktop so that some portion is on laptop and some on external monitor. I tried xdmx but it did not worked.
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Mar 8, 2011
I'd like to solve a little problem that I have connecting my notebook with an external VGA monitor.Everything seems to work fine, but when I close the laptop monitor, also the external monitor shuts down.I've tried to find different energy-saving setting for laptop display and external monitor. with no luck...My video card is an ATI Radeon Xpress 200M. On the ATI website there is no catalist control center for linux. (It would be very useful). So, for now, I can only use the display options on the panel.
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Feb 21, 2010
I am running Ubuntu 8.04 on a laptop. I have a 19" Acer monitor and in the past have successfully configured my xorg.conf to handle dual monitor setup with 1024x768 on the laptop and 1600x900 on the Acer monitor. What I have done now is run the laptop through a KVM switch. Due to this, I would like to set the Acer monitor as the primary monitor and just shut the laptop. How can I project my laptop screen to my Acer monitor so that I can use the 1600x900 resolution available rather than just cloning my laptop and using 1024x768?
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Sep 14, 2010
The monitor on my laptop has become a bit sketchy and money is tight at the moment. I am currently connected to an Acer flat screen monitor. I have the ubuntu settings for using only the external monitor. This works fine once I"m in Ubuntu. Is there any way to force the display to the external monitor prior to ubuntu starting? This may or may not be a linux-related question. It was be very helpful if I could see my Grub menu on the external screen. I could not find any setting in my bios. The keyboard shortcut sometimes works but not on the grub menu.
Ubuntu Lucid
Dell Precision M20 laptop
ATI video card
Dual boot with XP Pro.
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Aug 19, 2010
Mine is, ever since I installed the (wrong) opensource video driver for my Ubuntu 9.04 & Lenovo ThinkPad T41 (the one model, imho, they should never have let out the door!), uninstalled it by far-less-than-recommended means (ie, I used Synaptic and sudo apt-get remove and apt-get purge). End up is now my screen has a max resolution of 800 x 600, and Display panel insists that this laptop's screen is an "Unknown" Monitor.
Any tweaks to /etc/X11/xorg.conf (adding vertical refresh and horizontal sync rates for example) has resulted in its own weird behavior. On having my password accepted at login, there's a half-second of white that "rolls" over the screen horizontally. The next thing I see is a diagonal broken streak of white about 2 1/2" down from the top of the screen and 3 inches in from the right-hand side. The next thing I see is a buzzed,jagged rendition of my normal desktop. Nothing at all is clear, and the jags seem to redouble themselves the further one scans down on the screen. The only thing one can do in this situation, and I've done so enough times to know, is a hard reboot (power button for ten seconds or however long it takes).
And as I don't rate sh*t for a shilling on the Ubuntu forums, and as Google has been worse than useless every time I search for problems as detailled as these (it's like K-Mart: it has what you want until you go to look for it!), and as my one self-styled "Lunix-Geek" friend (now in the UK) has only briefly battled the xserver-xorg beasts, I'm coming here to see if anyone knows something else I could do besides bite the bullet, say goodby to my accumulated goodies, and reinstall Ubuntu.
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Feb 4, 2011
I installed Ubuntu on MSI laptop. Works great. I am trying to connect the laptop to external screen through the VGA output. When the laptop's lid is open - it works just fine When the laptop's lid is closed - the VGA output content is gone. i didn't find tin the monitors' menu nor in the power menu, an entry where I can ask or set the VGA output to be active all the time.
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Aug 28, 2009
I installed FC11 on my laptop T43 and the video card is ATI Mobility Radeon x300. Now I have a problem of screen resolution with external monitor:
When I do presentation, I have to mirror the two monitors and both set to 1024*768, which is not perfect.
I remember that when I use RHEL 5 desktop edition, The system can automatically detect the external monitor and set it by itself ----- The laptop uses 1400*1050 and the external monitors such as projector uses 1024*768. But I haven't found such feature on FC11.
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Sep 7, 2010
I have a laptop that has been connected to an external screen ever since i installed linux on it but i now wish to use it as a proper laptop but i when i run it without the external screen, the laptop screen goes blank after the initial boot splash screen. Is there a way to fix this?
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Jan 2, 2010
I have tried to connect my GMA500 based Acer 751 to an external dsiplay via VGA connection. I couldn't get the right resolution on the external screen (1920/1080) so I disconnected it and rebooted. Now there is only an "unknown" screen in the display menu. I have rewritten the xorg conf file per instructions for enabling GMA500 but to no avail - conf file looks right but screen is "unknown", low resolution and 4:3 aspect ratio, instead of 16:9. How to restore to laptop monitor - I think I can take from there to enable the right resolution.
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May 4, 2010
I'm using Xorg 7.5 on a Radeon HD4870 with the FOSS radeonhd server on my HP 6830s. The laptop has a VGA connector and I attach it to a 37" panasonic plasma TV. It works fine except for a little annoyance: when activated, the TV screen is set to the resolution of 1360x768 (which it reports as being the highest it supports) but all the image is shifted by about 100 pixels to the right. I can't see the leftmost part of the page, and I have a black vertical bar to the right.
If I change the resolution to 1024x768 there is no shifting, the image fills the entire screen with no parts hidden, but at this resolution the image is stretched. How can I tune the position on the external monitor so that the image is centered in the screen filling it entirely?
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Feb 19, 2010
I'm using dual-screen output with KDE 4.4 on my laptop. Is it possible to have the KDE panel on the external monitor if attached and back on the laptop's LCD panel as soon as the monitor is disconnected?
It seems that Plasma prefers the built-in LCD even if an external monitor is connected. I tried various settings with xrandr and also in the System Settings but none of them helped. The only way to move the KDE panel to the external screen is to disable the built-in LCD.
What I would basically like to do is to use the external monitor as primary in the office and the laptop LCD next to it as a second screen. When I'm traveling I'd like to use only the laptop LCD.
Is there also a nice way to switch between the screens? On the Internet I found a script for the "screen switch" key for IBM Thinkpad and modified it to work on my Dell. But it would be nice to have this also automatic: autodetect the monitor attachment/removal and perform a configured action. The KRandr doesn't seem to have such a feature. Is there anything I could use?
My system is: Kubuntu 9.10 with KDE 4.4 upgrade. Hardware: Dell Inspiron 1545 with Intel GM45 card.
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Apr 3, 2011
Just did a fresh install of Natty B1 (previously had alpha 2).. I noticed this issue w/ A2, as well.. plugging in the exterminal monitor (via mini-displayport-to-vga connector) will do the following:
1) turn the screen on the laptop's display entirely black (but not turn it off).. i can move and see the mouse cursor.. but everything on the window appears to not rending or "painted" black..
2) external monitor never becomes active..
the only way to recover is to kill/restart X or reboot after disconnecting the extmon.. having extmon plugged in from boot produces the same results (and it doesn't seem to ever become active during boot up). sometimes this won't happen right away if i plug in the external monitor.. but opening the Monitors system prefs dialog will definitely cause (or detect displays) ,etc I waited to see if the issue would fix itself w/ the beta update, but it hasn't.. Any other 8,1 owners out there that can verify this issue? My (totally uninformed) guess is that it's due to differences in the display/gfx hardware and thunderbolt integration(?)
(I've seen a verification verifications of working-out-of-the-box.. but they were from 8,2 and 8,3 owners (which have discrete graphics cards))... If anyone's gotten this to work with some config stuff, I'd love to see that as well (since the wiki page for 8,1 says it works ootb). If someone could let me know where I should look to capture error output when the above issue occurs, that would be awesome.
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Sep 22, 2010
I have a mac book pro 5,3 with the nvidia gforce 9600m. After getting Ubuntu installed as a dual boot, I wish to use an external monitor while using Ubuntu. (it doesn't have the problem with OS-X) The external monitor is a samsung syncmaster 192 n. when I connect the other monitor and press 'detect display' both go grey creens(the external already is of course). My lapton screen will not recover until restart either. I need this monitor to run a numerical mesh 3d mesh creator that will not fit on my screen alone. Wouldnt be a problem if the creators were software engineers but the program window cannot rescale, and is beyond the resolution capabilities of my 15'' screen alone.
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