Ubuntu :: Black Screen - Works On VGA To Monitor But Not On VGA To TV?
Jul 2, 2009
I have this very frustrating problem... I'm trying to build a Linux-based HTPC (Home Theatre PC). I'm running Ubuntu 9.04 Jaunty as the operating system, and it works fine when I have it connected to my 17" Samsung monitor. However, when I connect the HTPC to the TV via VGA I get a black screen after "startx" (I can access the console through recovery mode though). Ubuntu is running gnome, so I guess it's a gnome related problem?
I would have thought it was a problem with the drivers to graphics card, but since it's working on my 17" monitor I've ruled that out. The TVs resolution is 1024x768. What can be causing this? Apperently there's some difference between my monitor and my TV (forgetting the fact that it is indeed a TV, not a monitor), but what? I've previously run Windows on the same hardware without problems, and thought I should give Linux a shot. It doesn't look good...
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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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Nov 30, 2010
I have Ubuntu 10.04 running kernel .26 installed on my Dell Dimension 2350 with 512mb of memory. The problem I have been having is, When I am using the computer mostly Internet stuff for no reason the monitor will go black then on the screen it will be at a terminal screen, kind of like when you start up the computer, I don't remember what is all on it but the last thing in the list was: checking battery state: OK after that the screen will flash in multiple colors and then it goes into a loop of just black screen than a colorful flash and back over to a black screen. the only way I can fix that is by holding down the power button. this will happen mostly on face-book on the games and just on the profile page, but it does happen just checking my gmail or play solitaire it does this around 4-8 times a day.
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Feb 5, 2011
I have openSUSE 11.3 with an nvidia card connected with two monitors. In the past I used xinerama which was ok, but now I need to have two separate desktops, one on each screen. I set the nvidia driver with x screen, and now one screen works perfect and the other only shows a black screen. When I move the mouse over the black screen, the mouse pointer turns into an X, but moves correctly, which seems to me that the problem is that I need to set the second desktop to that screen. I looked on forums on how to do so, and no luck.
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May 1, 2010
Ubuntu has been crashing on boot. I used a recovery mode kernal and went into failsafe mode, upon which point a msgbox told me to switch to low graphics. Then Ubuntu looked completely normal and functional with no problems. To me - an Ubuntu amateur, it seems like a driver problem and that running in failsafe mode will have its setbacks.
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Jul 31, 2011
Natty install -- ATI 9800 is the video board.
I installed Natty on it with the machine hooked up to a Samsung LCD with a 1680x1050 resolution over DVI. No problems at all. I want the box to pretty much output MP3s and web video, so I'm not needing much. When I take the box and hook it via DVI to my LCD, I get a blank screen on boot up. I try sticking the natty CD in it, and I get a blank screen trying to live boot it too. The LCD doesn't do 1680x1050, so I brought it back to my Samsung and set the default resolution to something nice and safe: 1280x1024. Still the same behavior. When I take splash mode off, I see a "load fallback graphics devices fail" error as it is booting up. Hard for me to think the driver is the fault here when it works on my over LCD just fine.
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Jun 24, 2011
I have two instances of OpenSuse 11.4 installed as guests under XenServer. The first one is running KDE and the second LXDE. I can connect via TightVnc to the KDE guest. When connecting to the LXDE guest the client window is black with an X cursor. Both systems have identical Xorg.conf files and identical xinet.d/vnc files. The logs show that xinetd is starting vnc on the LXDE guest. The LXDE process is running, and lxde.log doesn't contain any obvious problems.
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Mar 6, 2010
i tried to install linux mint, at first i got 'out of range' with black screen msg but used compability mode and got past it and installed mint on my HD. a moment after it updated my nvidia drivers and after reboot I got the out of range message again, which leaves me in the situation where i cant do pretty much anything I tried editing xorg.conf added VertRefresh 60-75 and Modes "1440x900_75.00"
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Mar 23, 2010
I have an Intel Corporation Mobile 945GM chipset. As I was playing around, trying to figure out how to get my dual monitor to work. The Mirror Screen was working fine, but then I uncheck the mirror screen option, both my laptop and my secondary monitor black out. I can only see the mouse, and it cans move on both screen.
Here is my xorg.conf:
Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen0" 0 0
[code]....
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Jan 10, 2010
I'm running debian (AMD64 dist), and I recently upgraded via aptitude to KDE 4.3.4.After the upgrade I found that I could no longer start X (using startx from my user account).I am, however, able to launch kdm from a root command line and log in as a user to X this way (graphically).I want to run startx as a user and I cannot figure out where the hangup is. I've looked in my Xorg.0.log files comparing .old to current and nothing stands out. After I launch 'startx' the screen goes black and the computer waits. I can hit ctrl-alt-f2 and bring back the text-mode terminal screen; it's at a point where it looks like X is working. From there, I can control-c it and get back to the command prompt.
I'm thinking this is a software configuration thing but I don't know enough about how all the systems tie together to figure out where the problem is.
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Nov 30, 2010
I did a LiveCD to USB install, following the directions I found at [url] When I went to reboot to the USB stick, all I get is a black Screen (monitor is on and lit, just nothing on the display) No cursor or command prompt. I've tried holding shift to bring up the GRUB menu, changing splash quiet to nomodeset, or just adding nomodeset after the splash quiet thing. I've even tried xforcevesa instead of nomodeset still black screen. Looking at the logs nothing is current as of the last time I tried to boot the computer, it's strictly what was written when I installed it to the stick. Other things I've checked/tried, Pressing CTRL+Alt+F1 at GRUB to get TTY, all I get is that blank screen. I've Checked etc/default/grub to ensure the timeout was higher then 0. The Install CD seems to be OK but I have (as it did another install successfully) but I haven't done any throughal checking of it (there was no check this disk on the first screen of the LiveCD) The USB sticks also seem to be ok (in windows though). Using the disk utility on the live CD I did check the file system on the USB stick, the "/" partition came up clean. Anybody have any other thoughts on this install, any thing else I can check?
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Mar 28, 2010
I have to hold a presentation using a projector in a few days and I have to bring my own laptop, so I tried hooking up a second monitor to test if it works. As it turns out, the second monitor works fine, but then my main screen is messed up. I'm using Ubuntu 9.04 and I'm doing this on a HP Pavilion DV4000 laptop. My main screen shows just the bottom (cca) 400 pixels of the wallpaper, no bottom panel, no desktop icons. And I'm kind of scared to remove the second monitor now cause I don't know what I'll do if I don't get the main screen back.. Well, other than installing 9.10 beta that is..
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Jul 30, 2015
I've recently installed Debian v8.1 and installed Nvidia driver 340.46. In nvidia-settings I am able to enable my second monitor and enable it/set it's position..etc. My second monitor is not being detected in Debian Display and is 'on' but only showing a black screen. I've tried researching and implementing various 'fixes', but I'm not having any luck.
I'm running dual GTX 570's with a monitor plugged into one each (DVI). I noticed in my xorg.conf under Section "Screen" I have an option "MultiGPU" "Off"; would this be part of the issue?
I've tried:
- purging all nvidia drivers and re-installing
- installing different versions of nvidia drivers
- add nomodeset in grub
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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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Jul 13, 2011
I have just "finished" updating my Ubuntu 9.10. (somehow I knew that something is going to go wrong), and now my PC starts, works fine for a few seconds, then I get a black screen for a moment, and then my monitor starts acting like PC is off.Interestingly I think that otherwise everything is working just fine and that I just can't see anything due to the black screen (monitor is flashing like there is no signal coming from PC).
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Jun 18, 2011
I am booting XP and Opensuse 11.4 all was ok until I changed my old monitor for a widescreen monitor, Xp works ok but when I select Opensuse from the menu it just boots to a black screen.
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Feb 10, 2010
I get a black screen whether I use Ubuntu's driver or ATI's driver, but when I use the default it works fine without an desktop effects. Catalyst installed without any errors.
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Nov 14, 2010
on a 6-7 years old compaq laptop, connected to a brand new hp monitor i am having a mismatch with computer/monitor resolution.
before i had ubuntu 10.04 which could only run in x's safe graphics mode - allowing for full screen resolution but with handicapped graphics - for example videos fullscreen would be quirky and run with cpu at 100%, something which was no problem before 10.04.
then i tried ubuntu 10.10 and later lubuntu 10.10 (which had exactly the same problem); the monitor is running 1440x900 while the computer is rendering to only 1024x768 - leaving a huge black border on right and bottom of screen. the gfx is still crippled; videos fullscreen is quirky as before.
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Apr 19, 2015
I have a laptop and an external monitor connected via displayport. I can configure both displays via settings with correct resolution and arrangement. However, this configuration is not sticking, and every time I shut down the laptop or close the lid I will need to fight with black screens and more to bring the same configuration again. Basically, it seems that the monitor is "stealing" the primary role to the laptop's native screen (I have it configured as secondary, but also being primary the configuration gets messed).
After many trial & errors, this is the routine I have found to make things work every time I boot / awake the system:
1. Boot. Laptop's display shows the booting sequence.
2. When the login screen should appear, laptop's display goes black, monitor shows background.
3. If I press F9 to increase brightness, the brightness icon appears in the monitor, but it is stuck at the minimum.
4. The only way to leave this point is by pressing F7 (project screen) and then F9 again to increase brightness. Then the laptop's screen does light up.
This is when I'm lucky. Sometimes the configuration goes mad and I get mirrored displays and different resolutions, without touching the settings myself. Also, if I unplug the displayport I run the risk of getting stuck with a black screen in the laptop, without any way of recovering the GUI other than rebooting (Ctrl Alt F2 will still show the command line screen).
My system is Debian 8 testing up to date, running in a Lenovo T430 with Intel components. I'm not sure the monitor is relevant here, but in any case it is an Eizo CS240.
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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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Nov 30, 2009
I'm a newbie to installing LINUX (was an Oracle DBA for many years) and I am having trouble getting the dual head function to work with my Sony Vaio laptop. I just select a generic LCD with the screen resolution that I want, but when I startx, I briefly get the login window (terminal), then everything goes blank and I have to unplus the samsung monitor and reboot to be able to have a screen again. I have tried the fn + f keys and that doesn't help.
Here is the hardware:
Samsung Syncmaster 2343BWX
Sony Vaio VGN-FJ170
Intel Graphics Mobile 915GM/GMS/910 GML Express graphics controller
I would like to use this laptop as:
Audio streaming from internet (so far not working on my local NPR stations)
Hooked up to KVM switch - using the Samsun monitor and an adesso integrated keyboard
Wireless network (that is working - but it took some doing....)
What files and logs I need to post I will do so, but if what I want to do is just not possible or a big hassle, please just let me know, and I will load windows. Although I really wanted one LINUX box in my home office.
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May 5, 2010
I cannot install Ubuntu 10.04, or even boot into the live CD. I'm not an expert, but I've used Ubuntu for several years, and I'm pretty sure I'm not doing anything stupid... Here's what happens when I boot with the Ubuntu 10.04 live CD: I get a purple screen with just an accessibility(?) symbol at the bottom (this lasts 15 seconds). The screen goes black, with a flashing cursor, then changes back to purple, this time with an Ubuntu logo, with 5 dots acting as a progress indicator (this lasts about 1 minute). The screen switches to standby. The CD drive continues to make noises for another minute or so, then stops.
I physically removed my graphics card (ATI Radeon HD 5770), and plugged the monitor straight into the VGA port on the motherboard. Now the CD boots up fine. I could try installing Ubuntu at this point, while my graphics card is unplugged, and then plug my graphics card back in, and see if it starts working then.
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Apr 26, 2011
I have tried loading 11.4 from the DVD from Linux Magazine. Everything goes swimmingly until I get to using it when the screen shows black rectangles, is "twitchy" and nothing works properly. I currently run 11.3 which works fine.
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Nov 17, 2009
My OpenSUSE 11.2 is working fine as samba server, no problems, but I have a problem with KDM.My default init runlevel is set to 5 and every time I try to login at KDM (KDE4), the monitor goes black and returns to the login screen.If I hit Ctrl+Alt+F1 to go to console and start /usr/sbin/console-kit-daemon manually, press Ctrl+Alt+F7 to return to KDM login, everything is fine.What do I have to do to fix this issue?
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Mar 6, 2010
I was messing around with the screen orientation and thought it would be funny to orient it sideways. Big mistake The screen went black.I can force a shutdown, login and I get the same black screen. I tried hooking up an external monitor and the monitor showed no input so I'm guessing my laptop doesn't have that capability with Fedora.This is my main computer.
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May 12, 2010
I can't seem to get Ubuntu to run on my old Dell Dimension 2300. It boots to a purple screen then it goes to a black screen with a load of writing nothing else happens after this screen. [URL] Could someone advise how I can get it to work?
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Dec 8, 2010
I turned on my Acer laptop and during bootup it seemed normal. After it passed the blue Acer logo, all I could see is a black screen and a black cursor outlined in white in the shape of an X. Thinking it would be a one time thing, I turned it off again.it still was a black screen.
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Feb 23, 2010
I'm playing with dual monitors. I have an NVIDIA GT220 set up so that my monitor and my TV are running as extended desktops. Everything is working well enough, but there is one annoying bit I've noticed:
If I'm watching ..... on monitor 1 in fullscreen and working on monitor 2, clicking anything in monitor 2 kills full-screen in monitor 1. Is this something that can be fixed somehow or is it a hardwired "feature"?
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Mar 20, 2010
I am having problems with the refresh rate if the screen. In the refresh mode of the monitor in the monitor options have only one option 60Hz. I have LG 24 + ATI Radon 3870, and have already installed the ATI driver via Ubuntu download center.
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Oct 19, 2010
i have upgraded to 10.10. my monitor works perfectly in one user account but in the other user account it is just lines. is there any way to fix this?
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