Ubuntu Multimedia :: Losing The HDMI Video Connection?
Sep 15, 2010
I have a Zotac MAG HD N01 desktop computer hooked up to my 40" LCD Samsung TV in the living room. On this machine, I have Ubuntu 9.10 minimal installed, and the system is configured using the XCI script (a customization script to configure the system as an HTPC with XBMC).
Now, since the original install, I've tweak it a little, and one of the things I have it doing is its booting into a minimal desktop using the NODM login manager and it goes into OpenBox. Everything works fine and dandy, however, when I leave it for a while, it looses its connection and says "Searching for Signal" on my TV. I can remedy the situation by just hitting a key on the keyboard (Ctrl for example).
This also happens if i'm watching, say a flash video in a web browser for a while (like a hockey game), and all of a sudden, the screen cuts out.I've checked in the openbox configuration, and screensaver is turned off, but I can't seem to find where to configure any sort of power management. Is there a way to turn off the, what I can only assume, is a power management feature?
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Feb 28, 2010
No video from mplayer/xine/vlc with HDMI connection I just plugged in my new monitor using a HDMI cable. Display is perfect everywhere except in video players. Flash video worksfine. I guess there's some overlay setting that needs to be changed?
VLC plays some bizarre 'ASCII art' thing instead of video files. Other players give me audio but no picture.
TVTime is the same - sound but no image
Also, there is no sound via HDMI from the screen but that's a secondary issue.
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Aug 31, 2010
my goal is to record video using a canon powershot camera, edit the avi file on my ubuntu 10.04 computer, then upload the rendered file to videos.
problem is that when i cut the video, the audio is no longer in sync with the video, it's off by about 1-2 seconds. this happens with both openshot and pitivi, so i suspect that it's caused by a bug with the codec. (files are avi with mjpeg codec). after searching launchpad, this is apparently a "known issue". that's great but for now i need a workaround.
i do have an old g4 powerbook with imovie hd v6 on it that i can use, but i'd prefer not to because:
1. the powerpc mac is much slower than my new dual core laptop
2. imovie compresses my videos too much so the rendered file is lower quality
3. i simply prefer openshot to imovie
i was thinking of preprocessing my avi files by converting them to another format with a non-buggy codec on linux. i downloaded ffmpeg, but not sure how to use it and what format to use. would mpeg2 be a safe one to use?
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Jul 2, 2010
I'm looking to put a new video card in my desktop. I need one that will be able to handle H.264 at 1920x1080, and I would like to find one that can do HDMI with audio. Shopping for video cards, as I heard somewhere, is the kind of thing that makes you want to bang your head against a wall until you go blind, because then you won't need to worry about it any more... someone will be able to recommend a model, or at least a chipset or something, before I rip my own eyes out.
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Feb 17, 2011
Hardware: HP dv3505ea laptop
Ubuntu: 10.04 LTS
uname -a: Linux adventure 2.6.32-28-generic #55-Ubuntu SMP Mon Jan 10 23:42:43 UTC 2011 x86_64 GNU/Linux
HDTV: Panasonic TX-L37D28BSA
I'm having trouble getting any output from my laptop's HDMI socket. I've had a search and can only find sound problems, mine is no visible output whatsoever.
Let me describe the setup: Laptop has a HDMI socket which I have never used before, HDTV has 4 HDMI inputs, I just bought a HDMI cable to connect the two to try it.
After connection I go to System->Preferences->Monitors and the TV is detected fine with the correct description and offers me 3 different resolutions. xrandr also works and gives me the same thing:
Code:
However none of the options display ANYTHING on the TV. The screen remains black, not even a flicker.
I have connected the laptop to the TV before using an analogue VGA (monitor) cable which worked in the same way with no problems.
Could this be an encryption/DRM/DVI problem? I have suspicions about the cable too because it is new and I haven't seen it work, but it wouldn't detect the correct TV description and resolutions would it? It was sold as an XBOX360/PS3 HDMI cable, is there a difference? It looks like a standard HDMI male-male cable.
Other things I've tried:
Log off and log back on to restart the X server
reboot
Some more stuff:
Code:
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Jun 19, 2011
I've recently tried using my HDMI port on my Acer Timelinex 3820T. Audio works perfectly; video is another story altogether, however. I am able to see my mouse on my TV screen, and my top panel of my desktop is partially visible (it's cut out at the top). The icons on this panel respond to mouse kicks.
Below the panel is just a black screen.
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Jan 13, 2011
Just thought I might save someone some time if they are trying to use Mythbuntu with a Samsung LED TV. If you run into the issue where the desktop is larger than the screen even with everything set to 1920x1080i and you tried a customized EDID file to no avail. Go into the menu on the TV and select Source List, Edit Name, then chose the HDMI and change the name to be either PC, DVI or DVI-PC. Either of these three setting should correct the over sized display issue.
Now if you happen to want audio over HDMI and are using the HDMI Computer connector that Samsung so nicely provides. Make sure you don't choose either of the DVI options above as these mute the audio coming over the HDMI connector and instead enable the pin audio jack next to the HDMI connector.
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Jan 11, 2010
I currently use "MSI Radeon HD 3650 Graphics Card - ATi Radeon HD 3650 750MHz - 512MB GDDR3 SDRAM - PCI Express" that have no HDMI and some problems with Ubuntu. Due to the Ubuntu compatibility problems I decided to ask you guys for recommendations before upgrading to a new video card.The only "demand" is that the card must have dual HDMI outputs, one for the monitor and one for the TV.
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Feb 16, 2011
I have a ASRock and Ubuntu 10.10. Everything worked fine till I had a short circuit. I started the computer, everything came up fine but the projector I have attached to the HDMI wasn't recognized anymore. I have a GeForce GT 425M and a Panasonic AE-2000 attached to it. The Xorg.0.log has following entries:
[ 12.838] (EE) NVIDIA(1): Unable to find available Display Devices
for screen 1.
[ 12.838] (EE) NVIDIA(1): No display devices found for this X screen
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Jul 26, 2010
I'm looking at upgrading my motherboard and graphics card. Ideally, I'd like to have 2 monitors running at once (DVI), and an output to an LCD projector (HDMI). If I can't have all 3 working at once, I'd like the 2 monitors on all the time (off the graphics card), and then switch from the monitors to the HDMI output so that only the projector is getting video.
So, If I get a motherboard with onboard HDMI, would it be possible to run the HDMI out at the same time as the graphics card output?
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Jan 10, 2011
I'm having a hard time with my hdmi output on my HP G60-128CA laptop to my HDTV.For now I'm getting video only with the Nvidia 173 driver no mater if I'm on 10.04 or 10.10. In the 2 cases, the sound is not passing. Let me add that all the options in sound preferences are available and all the speakers tests i did whit aplay worked ( no error messages), and no muted devices in alsamixer.In all my web searching one thing is strange to me: i didn't find a lot of problems regarding the hdmi display output whit the latest nvidia driver
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May 2, 2011
but I had trouble trying to play an avi file on the bigscreen via my laptop's HDMI output.Although I could play the video in a full size box (with status bars and borders visible), both screens would go black when I double-clicked to go full size. This happened in both MPlayer and VLC as long as the HDMI cable was connected. Audio was fine.It presents as some sort off copyright protection, but I remember being able to watch movies fine in Maverick. Is anyone else having this problem with Natty?
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Jan 6, 2010
script which adjusts my NVIDIA settings to HDMI and also my Audio output to my digital output. I feel its quite a lot of clicking to get my signal to my LCD.So I hope somebody already had this idea and can give me the script or can assist me in writing it myself. I think its not a complicated script. i guess its only 2 lines. But i am not exactly a pro in Ubuntu..So as i said i have a NVIDIA graphic cardand aplay -l shows
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC1200 Analog [ALC1200 Analog]
Subdevices: 1/1
[code]...
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Apr 24, 2010
I have noticed that, using nvidia's latest drivers, HDMi output to my 32" LCD (1920x1080) and totem or vlc, the video on my LCD gets a bit "choppy" when the image changes faster.. some bars start appearing on the moving parts of the image.. like the system is having trouble rendering the video. This doesn't happen on my laptop screen even when both displays are running at the same time.
Also, this problem doesn't appear in windows 7, everything works perfectly there with one odd thing... the picture gets "choppy" on the laptop screen when I'm running both at the same time. It's not that noticeable, but I can tell the difference between windows and ubuntu in quality and it's annoying me
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Feb 8, 2011
I realise this is an issue that has been covered a lot, one way or another, but at least from what I've been able to find, most of the discussion centres around getting HDMI audio to work. However, I have problems even getting the video to work from my laptop's HDMI output.
I have an HP dv6z-se, with an ATI Mobility Radeon HD 6550 (1 Gb) video card and using F14/KDE. My problem is that when I go to System Settings/Display/Monitor, Fedora doesn't actually seem to realise my computer even has an HDMI output and only displays options for VGA and my integrated screen.
When I plug it into my LCD screen, sometimes I get a 'No Signal' message and sometimes I get garbled static and a message about unrecognised input and the frequency it's coming at.
I read elsewhere in the forum that someone was able to get video working by editing their xorg.conf file, so I went in and tried to see if I could replicate that, but none of the files in my xorg.conf.d folder had anything related to video outputs (as far as I can tell at this point).
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Feb 21, 2010
I'm trying to get my Sound working with HDMI-connection. Got an Nividia 8600M GT on Ubuntu 9.10. Here is what aplay -l says:
[Code]....
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Jun 26, 2010
Here is the output of alsa-info.sh:
[url]
HDMI video out is fine, HDMI audio is a no go.
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Jun 14, 2010
My imac is connected on a wired connection and it keeps losing signal it will work fine for the first couple of minutes
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Jul 6, 2010
A friend of mine is running Ubuntu. He used to run Windows XP, but he kept destroying it completely, and I soon got tired of fixing it for him. So I setup Ubuntu, and we're both happier people for it.BUT! The other day he asked me to setup a VPN (PPTP) connection to his workplace, which I promptly did. It also just works, except for one minor problem: When he fires up the VPN connection, I lose the ability to connect to his computer over SSH. As soon as he shutdown the VPN connection, I can once again log in over SSH.I use the SSH connection for basic maintenance and for tunneling port 5900 so I can assist him over VNC.
His nic is setup with DHCP. Gateway is 192.168.57.1. Port 22 is NAT'ed to 192.168.57.2, which is the IP his computer is assigned by the router (it's reserved to his MAC address).
When he connect the VPN, a new interface is created with the IP 192.168.1.32. I'm very much _not_ a network expert. I can manage the very basic stuff, but beyond that I'm quite lost.
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Feb 2, 2010
I am running Karmic AMD64 on a homebrew desktop PC, but I also previously had this trouble on 32 bit with different hardware and on Ubuntu 9.04 and 8.10. The router is now an ADSL+ Thomson TG585n supplied by O2 and badged O2 Wireless box III. The PC has a direct ethernet connection. The router was replaced by O2 when the problem first appeared, as the Wireless box II was suspect. However, I still have the problem and it is getting more frequent.
The symptoms are these: I generally shut down the PC each night, and only fire it up again when needed, which is usually the following evening, but it remains on for most of the day at the weekend. Very often when started, I find I have no connectivity to the internet, and cannot retrieve my emails. Strangely though, the Skype connection is still present and works, although not every time. My wife's laptop is connected over the wireless link - and that STILL WORKS! Sometimes I can connect to the router interface, but sometimes I can't. I've never lost the connection while the PC is running.
I have tried everything I can find in the router (when I can connect) and also in the Systemreferences:Network Connections and also in System:Administration:Network Tools, but can't find anything that helps. A re-boot of the PC doesn't help. A re-boot of the router doesn't help. A hard reset of the router on it's own doesn't help. The only solution to restore the connection is a hard reset of the router (using the recessed reset switch in the back) followed by a re-boot of the PC.
Since the Skype service remains working, and the lights on the router remain normal and wireless service doesn't fail, I think this has to be a DNS server problem. In the previous release, Jaunty, I changed the DNS service to OpenDNS within Ubuntu, overriding the router's settings. That seemed to help a great deal, although there was still the occasional outage which might have been another cause. I can't find anything in the GUI interface in Karmic that will let me do this, and I can't now remember how I did that in Jaunty.
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Nov 1, 2010
I did a clean install of 10.10 just under a week ago and something is really wrong with my wired connection. I keep loosing all connectivity and have to connect again from the panel app. After that, every thing works again for about 30 to 60 seconds and the the connection goes again. No lost connection notification pop up or anything like that, but i cannot browse the web or download upgrades while the connection is gone.
Then the really weird part. Sometimes my connection works just fine. On some boots everything is fine for a long time (hours?) but then the problem comes back. My network card is an Intel 82567LF-2 and it uses the e1000e kernel module. I dual boot to Windows Server 2008 R2 and there I have full connectivity all the time.
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Feb 16, 2009
I'm using Xubuntu 8.10, network-manager, Atheros AR2413 802.11bg NIC, and Radeon Xpress 200M with open-source ati drivers.
My problem is that I'm frequently losing my internet connection--whether I'm wired or wireless. It happens most often when I'm watching a ..... video but it happens other times too. My cpu usage is high when watching ..... (70-100%), so that may have something to do with it but I'm here because I really don't know.
I started having this problem when I switched from the proprietary fglrx driver to the ati driver. I switched because my laptop was always freezing halfway through a movie using vlc/mplayer. The ati fixed this but gave me my current problem. I do not want to go back to fglrx.
Here's what I've done so far to try to fix it without success:
-tried using noapci boot option
-tried using a different router
-tried using wicd
When I lose the connection I still have a strong signal. My lshw and iwconfig outputs are the same as before I lose my connection. However, I cannot ping my router when I lose the connection. I have to reboot to reconnect.
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Feb 11, 2009
I just installed fedora 10 on a machine with a netgear ga311 gigabyte Ethernet card. Usually when I start it up I have a connection but after 5 minutes I lose the connection.
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May 3, 2011
I have a vp6 codec flv. I have a wav file that I want to convert into mp3 and added to the vp6 flv. So when I play the flv the audio is added and the video quality is not changed.I tried:ffmpeg -i 20.flv -i 20.wav -vcodec copy -acodec libmp3lame new_file.flvbut I an error "Could not write header for output file #0 (incorrect codec parameters ?)". I'm guessing because it is a vp6 flv codec.Is there a way to just add an audio file to the flv? There is no audio in the current flv. I cannot lose any quality in the video.
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May 24, 2010
My wireless network is giving me a fit. Slow transfer speeds and then I lose connection and have to reboot.
greg@greg-computer:~$ /sbin/ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:92 errors:0 dropped:0 overruns:0 frame:0
TX packets:92 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:10214 (10.2 KB) TX bytes:10214 (10.2 KB)
wlan0 Link encap:Ethernet HWaddr 00:16:b6:5a:9c:a5
inet addr:192.168.1.3 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::216:b6ff:fe5a:9ca5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:13085 errors:0 dropped:0 overruns:0 frame:0
TX packets:9600 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:15268450 (15.2 MB) TX bytes:2704035 (2.7 MB)
wmaster0 Link encap:UNSPEC HWaddr 00-16-B6-5A-9C-A5-00-00-00-00-00-00-00-00-00-00
UP RUNNING MTU:0 Metric:1
RX packets: 0 errors:0 dropped:0 overruns:0 frame:0
TX packets: 0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes: 0 (0.0 B) TX bytes:0 (0.0 B)
greg@greg-computer:~$ netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 wlan0
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 wlan0
greg@greg-computer:~$ cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 192.168.1.1
greg@greg-computer:~$
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Jun 30, 2011
Since I installed Ubuntu I've had this problem that makes me loose connection to the Internet. The wireless-icon on the panel starts loading, and after like 5 minutes, it works again.I had this problem when I had Mint 11, but it happened more often.Anyone know how to fix? Edit:Network: Card-1 Atheros AR9285 Wireless Network Adapter (PCI-Express) driver ath9k Card-2 Marvell 88E8040 PCI-E Fast Ethernet Controller driver sky2
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Aug 13, 2009
I'm not sure if it is the connection I'm losing or something else is happening and I just can't fathom it out.
I have set up Debian from netinstall. I installed openssh server and Apache. The server is connected to our local network with the IP address 192.168.0.51 and shares a physical port on a simple ethernet switch.
I can SSH into the server from Ubuntu but it takes around one minute to ask for a password and another 20 seconds or so to bring up the prompt. I have checked twice to make sure their are no conflicting IP addresses on the network (all static). The connection seems fine but if I am away from the secure shell for more than a couple of minutes or I minimize the terminal window I can no longer type anything at the remote machines prompt. Reconnection without restarting the server is impossible on most attempts and the terminal just hangs before the password prompt appears.
I have the same kind of issue with Apache. I can view Apaches test index.html using just the IP address from my browser but after a few minutes I get the 'connecting to 192.168.0.52' in the status bar and it never reconnects.
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Jan 23, 2011
I recently purchased a new motherboard and processor to replace an existing system. I transferred the video card. OS remains the same, Ubuntu 10.10 x64. Video worked fine in the first system (eVGA motherboard, Intel E6600 CPU, 4GB RAM), but the old motherboard had a SATA controller issue. New system: Gigabyte GA-890FXA-UD5, AMD Phenom II X4 955 Black Edition Deneb, 8GB RAM
Transferred hardware:
Graphics: eVGA nVidia 8800GT,
Monitor 0: Hanns-G JW199D 1440x900@60Hz
Monitor 1: Gateway FPD1975W 1440x900@60Hz
The Problem:
1. Fresh OS install, everything starts up as expected, login, etc.
2. I use the Additional Drivers link from the menu and select the recommended nVidia driver and enable it.
3. After reboot, the following things happen:
3a. BIOS
3b. Ubuntu startup scripts
3c. Ubuntu logo with spinning dots
3d. Monitor goes black
3e. Monitor notifies it has lost sync
I believe 3d is where I would normally get the login dialog. I can use failsafe mode, but everything I've tried to fix the graphics display hasn't worked. I've even tried to load the latest nVidia driver, nvidia-config, nvidia-settings, etc. There are some options I've tried where the nvidia-x command returns "can't find device". I've tried to modify the xorg.conf file, to no success.
Any ideas what I can do to resolve the error? I'm not that strong on the xorg.conf file, but all I've read is that it's not too necessary anymore. Though, it was modified in my old system to get Twinview working. I've looked through a bunch of log files, but I may not have been looking in the correct log file.
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Apr 30, 2011
I would like to use my S-video connection on my ATI Mobility Radeon x1400 Laptop but I don't know how to do it. Could someone help please? I have never tried to use it before so I cannot tell whether it worked with previous versions.
I am using Natty.
Here is what I get with the command xrand. code...
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Aug 8, 2011
Sorry if this has already been solved;answered anywhere else - I tried looking it up but to no avail. The problem persists & the hints I found around the forum did not provide a solution to the case, neither other net solutions i looked up I run Winblows at the lab and sometimes take my Ubuntu PC with me. There is an open Wireless network where they set MAC permission, and there's no pwd to access. It so should be fairly easy to change m MAC and access it, right! No. I run ifconfig and macchange, successfully change my MAC addr BUT the connection drops! Then if I change it back (MAC to my original address) it goes back online. And yes, I shut down the service -- "ifconfig wlan0 down" and then up..WHAT ON EARTH am I doing wrong??? No webpages touch this 'trouble-frigging-shooting instance!
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