Ubuntu Multimedia :: Webcam Shows Just Black Screen In Lucid/
Jun 11, 2010
I have a Logitech Quickcam Chat webcam (USB ID 046d:092c) that's worked with my Ubuntu with minimal problems (just some nVidia driver crap) for ages now. I'm not using nVidia anymore (Intel now), but since my fresh install of Lucid, my webcam doesn't seem to capture anything. It is detected by lsusb, but when I open Cheese, the picture is just black. Skype doesn't give me any video at all, not even that annoying static or green lines. Clicking the Test button in my Skype Options undedoesn't do anything;double-clicking it gives me a full-screen grey screen - pressing Escape takes me back to the preferences window. After I get the grey full screen and press Escape, the Test button is gone until I close the Options window and open it up again.Going into gstreamer-properties and testing v4l2 (under Video -> Default Input) just shows me the 'Testing ... Click Ok to finish' window for ages until I close it - no video appears or anything and I'm not entirely sure what I'm supposed to be seeing. Testing with the 'Test Input' option does give me the coloured lines and static. Testing v4l seems to make it crash, but no error comes up in the terminal I'm running it from.lsusb output:
Code:
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 002: ID 046d:092c Logitech, Inc. QuickCam Chat
[code]...
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Jan 18, 2011
I got a Rocketfish RF-WEB2C webcam, plugged it into my Dell Inspiron Mini 10, and it worked just fine. Cheese ran it, tinychat ran it, skype ran it, all was good. Today, all I get is a black screen. Tinychat claims that it isn't giving out any signal, though can detect it, and Cheese showed me a black screen, though listed it as the the device it was using. I figure it isn't a lack of drivers, as it worked yesterday, and it really shouldn't have broken yet, as I just opened it yesterday.
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Mar 12, 2011
With a default 11.4 (64bit) installation, and the one click installer for VLC at VideoLAN - VLC: Free streaming and multimedia solutions for all OS! - if you get a black screen when watching movie files there are 2 solutions.1)-> Go to Tools->Preferences->Video-> Remove the tick for "Accelerated video output (Overlay)"-> Try and play the movie again, you should now see output.2)Download proprietary drivers for your graphics card - I think theres a thread on the forum dedicated to that.
Example, NVIDIA 8600 using the default 11.4 open source drivers (nouveau?) shows a black screen when VLC uses "Accelerated video output".However, installing the proprietary NVIDIA drivers, VLC will successfully show the movie using "Accelerated video output".To clarify the default VLC installation with "Accelerated video output" ticked - works with proprietary NVIDIA drivers - and doesn't without.
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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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Jul 20, 2010
I have a laptop Toshiba a65 s-1067 and i just installed ubuntu 10.04 but after updating the files that update manager said i restarted the laptop but now its not booting the gui it just shows a black screen with text going then it apears the logo of ubuntu in dark red backround with some text that i cant read cuz it disapears fast.. after this the screen just goes blan (dark red) and presing ctrl + alt F1 or F8 or anything doesnt work generaly no key works.
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Mar 19, 2010
whenever i open my kubuntu desktop it brings a black screen. the pointer of the mouse is active but i cannot see anything.but my gnome desktop works well.what might be wrong?
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Feb 23, 2011
I have a laptop which have vista,fedora 12. Today i have install another operating system ubuntu in my laptop. But when i restart it, it not boot up and show black screen. how to resolve this
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Mar 15, 2010
I'm using OpenSUSE 11.2 64 bit. Sometimes boot fails and I get a black screen. It starts quite normal, but when it tries to start X and KDE, it fails and I only see a black screen. I can't switch to terminal and I can not reboot my computer by pressing "Ctrl + Alt + Del". It doesn't even shutdown by pressing the power-button. The only possibility is to switch off the computer. Then it normally starts.
The problem also occures with a clean installation of OpenSuse. And it cannot be solved by updating kernel, X-Server and KDE.
What files do you need? I'll post them.
The same computer worked fine with OpenSUSE 11.1. I think, the new radeon driver could be the problem, I have to use it because I can not use fglrx anymore as with 11.1
I take a look into my log-files, but I cannot see any error. Sometimes it seems, that /var/log/messages is partly overwritten by restarting the machine.
lspci:
Code:
Code:
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Jan 20, 2010
I burnt the Ubuntu 9.10 ISO to CD and installed on a freshly nuked Dell 2350. It is pentium 4 at 1.8 MHZ with 512 RAM. Just a spare machine I have sitting there. Install went fine, restarted box, boot from hard drive. I get the little white Ubuntu symbol on a black screen and then a black screen with un-occupied white tool bars at top and bottom of screen and a functional mouse pointer, then nothing. It freezes there.
If I restart by holding the power switch in it occasionally shows multiple CPU overtemp messages and freezes with totally black screen. I can run the CD live and everything works like a champ. I'm going to like Ubuntu once I have this sorted out. If I boot from CD and choose the run from first hard drive option, everything loads and works fine. I was able to remove CD, update and save preferences, etc..
On one occasion, I was able to restart and boot from hard drive and it worked fine but usually it freezes at previously mentioned black screen with white bars top and bottom with mouse pointer. Please excuse my ignorance as I have very little knowledge of the inside workings of computers. I didn't even know about burning ISO's or changing boot orders until reading online. For what it's worth, the computer worked fine with no known hardware problems when it was running XP. It also is completely stock with no mods or added/replaced hardware.
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Mar 15, 2010
Once I select Ubuntu 9.10 from Grub, it shows the logo, the logo disappears, a jet black screen shows with 2 horizontal white dashes appear at the top.
I recently uninstalled Firefox 3.6 pre using synaptic to go with the stable Firefox 3.6 installed with the PPA repository that was given in the Ubuntu wiki. It installed and ran fine but when I rebooted, ubuntu wouldn't start.
I went into recovery mode a few times, tried to fix any broken packages and when it said it was fixed, I tried rebooting and the same error occurred. I also tried to use dpkg-reconfigure for the xserver-xorg and then ran startx but x didn't load properly. Some more debugging and a few driver errors came up involving intel so I installed a package which fixed that.
Ran the dpkg-reconfigure again and ran startx. This time x loaded but it was a jet black screen and I had to hold ctrl + alt and hit a few F keys to get back to the prompt.
I understand this could be a xulrunner error so I tried reinstalling xulrunner-1.9.1. I also rolled back my repositories to get the Firefox 3.5 branch and I installed the original Firefox 3.5, ran firefox --version to make sure and I finally have that back installed.
I tried rebooting and running the OS normally, but again it failed at the same point. What exactly should I do next? Yes, I could reinstall but it's such a small problem with maybe 1 or 2 broken packages, is there anyway I can save my current ubuntu system (as I have made countless configuration changes months ago and I do not want to do it again)?
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May 4, 2010
I get a black screen (with tiny bits of white on opposite corners of the screen) every time after logging into Kubuntu Lucid AMD64. The only thing I can do is move my mouse pointer over that black screen which doesn't go away. I booted into recovery mode and with command prompt typed "startx" to start graphical mode. That resulted in the same black screen. Then I decided to reboot and install Fluxbox via the command prompt under recovery mode. Now, I'm able to view graphically under Fluxbox after selecting it over the default KDE and logging in. But how do I get regular KDE/Kubuntu to work again? I don't know what happened to make it stop working!
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Jun 20, 2010
So I've been using Ubuntu for about a month now. Everything is great and all but today when I booted into Ubuntu everything was going well--the splash screen appeared and the dots were doing their thing and all--but then there was just a blank screen. Some people have had this problem after a fresh install of Lucid, but its been working for a while so I don't get why it isn't working... I didn't do anything to the system except run some updates before I turned off the computer.
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Sep 2, 2010
Yesterday, 9/1/2010, I received a bunch of patch updates for 10.04 (64-bit) and applied them to my laptop (Dell Latitude E6510, Intel Core i5). After they applied, it asked me if I wanted to reboot now or later. I chose later to finish my work and then shut my laptop off. This morning, I turned it on, only to get a black screen during bootup and also during login. I know it's working behind the scenes because I can hear the drum sound when it's ready to login and I can still press the power button and hit enter to shut it down. I tried using Alt+F2->F12 but it would only show a black screen.
My temporary workaround was to hold the shift button during startup to get the grub menu and then select the older 2.6.32-23 kernel to bootup instead of the newer 2.6.32-24. I am able to boot ok in the older kernel and it's working fine, but I don't know what is causing the problem for the newer one and cannot boot into that one.
I believe I was running 2.6.32-24 fine up until I received a bundle of patches to apply to my system. So the question is, is there a way to figure out what patches were applied in yesterday's bundle so I can back them out? If not, how can I fix this so I can run the newer updated kernel?
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May 4, 2010
Lucid is not in testing but it's released.It seems it works now, with all desktop effects activated and switching users and closing sessions.The only thing I still don't know is which screensaver can I use if removing gnome-screensaver?
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Jan 18, 2010
openSUSE 11.2 i586, ASUS P3-P5G43 Rev. R1.04G Intel Core2 Duo CPU E8400@3.00GHz, Intel G45/G43 Chipset The Problem: The screen is for the WSXGA+ (1680x1050) standard. This resolution was detected, at the initial install and later with sax2. It shows the desktop with a 1 inch wide black area along the right border of the screen and that is exactly what is missing at the left border (i.e. invisible). It is like the desktop is shifted to the left of the screen. As far as it is visible the image is crisp and clean. Lowering the resolution to 1280x960 works ok, but the aspect ratio is no longer correct. I have checked the archives and found Intel integrated graphics - openSUSE Forums but trying different hints from the thread did not help.
[Code]...
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May 2, 2010
I recently upgraded from 9.10 to 10.04 and was having trouble getting 3D graphics enabled on my ATI card. I am running on an MacPro3,1I read through this guide as I was having errors regarding fglrx so I uninstalled it and as instructed issued the following:
Code:
sudo /usr/share/ati/fglrx-uninstall.sh # (if it exists)
sudo apt-get remove --purge fglrx*
[code]...
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May 3, 2010
I just upgraded from 9.10 to 10.4. I am having the following problem:
When I attempt to switch from the user that I am currently logged into, to another user who is also logged in, I get a black screen.
To elaborate, here is the exact sequence of events:
Code:
- Boot ubuntu and login to user A
- Then Click on power menu (top right corner) and select: Switch from A
- I get the login screen
- I select user B and enter my password
[Code].....
I did try to change my session (at the login screen) to gnome-failsafe, xterm, even kde, but still I get the black screen.
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May 10, 2010
I just installed ubuntu lucid x64 on an HP dv7-3065dx and even though the installation went pretty smoothly, every time I open cheese or anything else that uses the webcam, the microphone all of a sudden cuts off. It doesn't receive input. However if I use the microphone without camera then the microphone works.... Is the webcam somehow crashing the microphone?? Is there something wrong with pulseaudio? The webcam works great and is recognized as "HP Webcam".
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Feb 16, 2011
I recently upgrade from Lenny to Squeeze. My graphic card is nVidia Corporation G86 [GeForce 8400M GT] (rev a1). Using lenny latest drivers from nvidia worked fine. I installed nvidia drivers using Debian packages 195.36.31-6 and latest driver from nvidia site (260.19.36) and also other nvidia drivers. The problem is when I start gdm3 I saw nvidia logo but then when it loads gdm3 it shows gdm3 screen with lot of black pixels and other random pixels and then the screen freezes. And the only thing I can do is restart using [alt]+[sysrq]+b.
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Jun 26, 2010
im using Ubuntu 10.04 and whenever i enable it and try to iniate it it just makes my screen black =/. It sucks because i really loved that feature (on 64-bit btw)
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Jul 27, 2010
I just upgraded to Lucid Lynx, and like most people, I'm getting the black screen during boot. So, I went into the grub edit screen, and I tried every variation of the nomodeset fix I could find. So far, nothing has worked. I don't know what graphics card I have, but it's always given me problems.
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May 15, 2010
Every other website works fine, I just installed the flash plugins and updated my system with Download Manager. But Myspace continues to fail.
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Oct 5, 2010
The new NVIDIA drivers don't seem to work as seamlessly as back in Jaunty and before. In Lucid when I activated the drivers I had to do some grub tweaks to make my splash look normal... But with Maverick it is even more messed up...
Problem: The splash either doesn't appear at all (black screen) or it appears in the text format rather than graphics... In some instances it even hopelessly tried to load the graphics splash - loaded the background but the instead of Ubuntu logo and the progress-bar animation it displayed a "Ubuntu 10.10" in a monospace font.
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Jun 29, 2011
I had switched over from Windows to Ubuntu and got rid of windows completely but still had the recovery partition and deleted it. I then tried to add that space to another partition, "Media." For whatever reason it deleted the "Media" partition so I used TestDisk to restore it. I did something wrong and when I rebooted my computer it would not boot so I used my LiveCD to check whats wrong and it had deleted all of my partitions and Ubuntu was nowhere to be found.
So I used TestDisk again to recover them, this time it was successful. The problem now however is that when I start my computer it does not boot into Ubuntu it just shows a black screen with the white underscore ("_") flashing in the corner. I'm not sure but I don't think it is booting into the correct partition, I think it would be trying to boot the first partition, /dev/sda1, rather than /dev/sda3. If this is the problem how could I fix it?
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Jun 29, 2011
I had switched over from Windows to Ubuntu and got rid of windows completely but still had the recovery partition and deleted it. I then tried to add that space to another partition, "Media." For whatever reason it deleted the "Media" partition so I used TestDisk to restore it. I did something wrong and when I rebooted my computer it would not boot so I used my LiveCD to check whats wrong and it had deleted all of my partitions and Ubuntu was nowhere to be found. So I used TestDisk again to recover them, this time it was successful. when I start my computer it does not boot into Ubuntu it just shows a black screen with the white underscore ("_") flashing in the corner. I'm not sure but I don't think it is booting into the correct partition, I think it would be trying to boot the first partition, /dev/sda1, rather than /dev/sda3. If this is the problem how could I fix it? I got all the boot loader information, here it is:
[code]...
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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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Jul 18, 2010
OpenSuse 11.3 with nVidia drivers.I have the screen working fine though it only runs in 1600x1200@75 using the nVidia driver (GTX260 card).When I play a game in full screen mode all seems OK but when I exit the game then I just get the mouse pointer on a black screen.There must be something present since the cursor changes as I move it, normal pointer -> hand over a link etc. It's just that black on black isn't very readable.
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Jan 25, 2011
This obnoxious bar has just appeared in Smplayer at the top of the screen. It stays there even when I go full screen. Now full screen isn't full screen and there are black edges on both sides of the screen. I have not be able to figure out how to hide it. I do not need or want this onscreen display. How can I configure Smplayer to make this go away? How can I get my 16:9 full screen aspect ratio back? I have done nothing to mplayer or smplayer as far as editing any or changing any configuration files. I tried several videos and it displays on all of them. It was not there last time I used Smplayer.
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Nov 29, 2010
What I am looking for is a dashboard type plugin for Rhythmbox which will show on the main screen ...then (because of the small size) I can use VNC on my Android Phone to see what is playing and to change songs etc.
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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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