Ubuntu Multimedia :: Not Detecting Displayport Connection?
Apr 23, 2011
I have an 27" iMac which I wish to use as display for my Ubuntu machine using it's mini Displayport as perTo that end I bought a new Intel DH67GD motherboard and 2600k CPU and a Displayport->Mini Displayport cable.However it seems that X doesn't detect the displayport connection correctly. When I boot the Ubuntu machine the iMac correctly switches to that input and Intel motherboard screen appears on the display followed by the grub interface.However it seems that when X should start it doesn't recognise the Displayport connection. The iMac goes back to displaying it's own screen and the X logs don't seem to recognise the connection
Code:
[ 32.854] (==) intel(0): video overlay key set to 0x101fe
[ 32.854] (II) intel(0): Output VGA1 using monitor section Configured Monitor
Apparently you can't get EDID information through a Displayport->DVI adapter. That means that a default install of Lucid (or Natty!) does not recognize the resolutions of any monitor connected with such an adapter.
I'd rather not create an entire multihead xorg.conf just to specify NoDDC. Is there any other way to pass that option to X?
I have a Dell Latitude E6400 with Karmic (Intel graphics chip). Currently, I am trying to connect a 22'' TFT using a DisplayPort to DVI adaptor plug. Unfortunately, it doesn't even seem to find the screen. xrandr does not list it:
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I know from another guy who connected an HDMI TV over DisplayPort, and this devices is listed unter "HDMI1", and not "DP1". So I am not quite sure where it would be listed even if it found the screen.
I occasionally use a DisplayPort->HDMI cable to connect my laptop to my AV-Receiver, however I only get the picture to the AV-Receiver, but no sound. I read that not all DisplayPort->HDMI cables support sound, so I tested Windows7 on the same machine and it transmitted sound over that cable just fine. So I conclude that it is a Linux driver problem.
So I generally wonder whether this can be made to work easily or not. Does anyone here have experiences with this topic, especially with nvidia graphics cards managing the display port? (I did find older posts about HDMI audio, but they were all concerned with ATI graphics.)
pavucontrol / phonon do list a "High Definition Audio Controller Digital Stereo (HDMI)"-device, but sending sound to it does not do a thing. Furthermore, my dell laptop only has a displayport, but no HDMI connector.
I installed ubuntu 10.10 and it is not automatically detecting the wireless connection and showing message firmware missing. how to connect to wireless. I installed on the laptop.
i installed ubuntu 10.04 in inspiron n4010 laptop. No internet connection is detecting. i have both wifi and wired network. in the desktop panel icon of network it shows networking is disabled ..
have installed fedora 14 in my dell inspiron laptop and it is not detecting wi-fi of my college in fedora but in windows 7 it is detecting. how i can sort-out
I am attempting to write a server application in C on a linux machine which listens for TCP connections and transfers data. I am trying to detecton the server side when the connection is broken. The closest thing that I got to work was looking at the return value from sending data. For example the server�s job is to mainly read data from the socket but to test if the connection is still up the server sends data periodically back to the client. I look at the return value from send() to determine if the connection is broken e.g.
Code:int ret = send(session->clientSocket, &data[sentCnt], count - sentCnt, MSG_NOSIGNAL)I found that this does not immediately return an error when the connection is broken. The reason for this is because even though the connection is broken send() is still successful because it is able to put it on the network buffer. To fix the issue I did the following things;
We have an Asterisk machine that we suspect periodically loses internet connectivity, causing all calls to drop. First, would this sort of thing be logged anywhere out of the box? I haven't noticed anything in /var/log, but that doesn't mean it's not there. If this is not typically logged, how I might go about logging it? I'm currently running a bash script from cron every 5 or 10 minutes which pings Google and writes success or failure messages to a log file. This works fine for extended outages, but if the internet connection drops and comes back between cron runs, it won't be caught.
I am writing a code in Python where a socket client changes data with the server. That works nice if the connection is up. However it is also supposed to work offline. So I need to be able to detect if the connection is up before sending data, but I was not able to do so. A summary of the code is like that:
if connected: data = "some data byte" try: socket.send(data) except: connected=False socket.close()
If I unplug the cable after the connection is ready then the socket sends data and does not detect the connection failure. What is amazing is that the client detects the connection failure just after the cable has been plugged again. Of course there is a loop in the code above and always that connected==False a new connection is made. How could the program detect the connection failure before sending data and then lead the code to an exception?
Well I have this really shweet Samson C01U usb studio condenser mic. When it is plugged in before I boot my machine, everything works like a charm, and I can sound like a rockstar recording my stuffs in UbuntuStudio 10.04 x64.But when I'm not being a rockstar, I'm using my normal Lucid distro to go about my everyday tasks. So when I decide to call someone on skype, I plug the mic in, and nothing happens. The sound config window does not show the device? I do not want to reboot every time to use the mic (and that's all that works), and I do not want to leave it standing on my desk either.
i am using samsung S3310 with aircel when i am connecting new mobile broadband connection my device is not identifying ,so that i cant connect Internet.but everything okay i mean settings in mobile and pc. for same connection i used Nokia mobile its identified and Internet was connected but samsung mobile is not identifying in terminal i typed LSUSB my device is shown in that.
I have a T500 laptop that has both a vga and display port output. How well is display port supported in ubuntu? When I google ubunt u, I get a whole bunch of "why isn't this working". Also, Is it possible to use both displayport and vga at the same time (so I could have three screens)?
I'm having a rather peculiar problem with sound in Ubuntu 10.04. Specifically, every time I reboot I run through a cycle of sorts:
A). Sound is working fine. Reboot
B). No sound. "aplay -l" returns "no card found". Additionally, the hibernate and suspend buttons are missing from the shutdown menu and restart acts as log out, immediately returning me to the log in screen (sudo reboot in console works). I try to fix the problem by the following commands:
C). After rebooting sound works normally again and I get the following:
Code:
aplay -l **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: VT1828S Analog [VT1828S Analog] Subdevices: 2/2
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I have "linux-backports-modules-alsa-lucid-generic" installed. I have been experiencing problems with audio since I bought this M/B, but with 9.10 things were stable and with my previous 10.04 installation bearable. Now, however, I practically can't work. I have to run the aforementioned routine every time I reboot. Additionally, I don't if it is relevant, but the problems started after I installed the audio drivers in Windows (another royal mess, but at least now it's stable and it works)
in my media pc i have a geforce 8400, attached to a 32" 720p lcd using a dvi to vga adapter, and it is miss detecting the resolution it detects the resolution as 1080p, so when i try to enable full gpu scaling it gets the resolution wrong resulting no image on the screen. how do i manualy set the "back end resolution"
I have a MacBook Pro 5,2 with the Mini-DisplayPort for external video. I have the displayport-VGA adapter which works (albeit sometimes at an unideal resolution) with an array of projectors, LCDs and other stuff. Everything except for my nice Samsung SyncMaster 2433. When I plug it in, I get the weird rainbow screwed up look with only the far left hand column looking normal and the rest looking like I've got the wrong refresh rate or something. However, the same setup works when I boot from Karmic to OS X. Note this also didn't work in Jaunty. I'm using the NVidia 185.18.36.
It also did not work through a KVM switch (long shot) but oddly the "Monitor Out" works when I run this monitor through my Dell projector. if I unplug the projector and then plug the monitor in directly without rescanning for displays, the monitor continues to work.
I have finally decided to reach out for help because I've been messing around for 3 days with xorg.conf and I'm a beginner and not getting it right. What I want to do is to use only my external monitor (1920x1200) via DisplayPort when my computer is docked. And then my laptop display (1280x800) when undocked. I am using Ubuntu 10.04.
I have setup System->Preference->Monitor: Unchecked <same image in all monitors>, turned off laptop display, and set External monitor to 1920x1200. After doing this everything works when in Xwindows. The resolution is correct when I am docked, and when I am undocked it defaults to my laptop display.
The ONLY problem with using the System->Preferences->Monitor is that when I start up the computer when docked the external monitor goes to the incorrect (laptop screen) resolution at the initial login screen. After I login the resolution corrects itself but it's messy with reinitialization of the screen and my icons being all messed up. I think this happens because these settings only take effect after logging in.
I believe I have to edit the xorg.conf to get my setup working at the login screen. Can someone please tell me how to this.
I have a LMDE (Mint Linux Edition based on testing, now Wheezy) i386 that I just did a dist-upgrade on and now it isn't properly detecting my monitor resolution. I have two 1680x1050 monitors, one attached to the DVI and another to a VGA video switch. When I rebooted to the new 2.6.38-2-686 kernel both monitors were giving me 1024x768. I futzed around for a while and could then get the the DVI monitor to correctly identify the proper resolution, but the VGA monitor resolutely refused to see more than 1024x768.
I was able to get the proper resolution by entering these commands:
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Should I file a bug report, and if so, with whom? I have to say, the Debian bug report process is not too newbie (or even not-so-newbie) friendly, but I'd like to help if it doesn't require me to hand-configure a MUA.
Also, I suppose I shouldn't mention it in a single post, but my mouse is behaving rather unpredictably now (click speed, selecting), and trying to reboot dismounts the file system and then starts up again giving me my display manager (in my case KDM), without restarting the system (both from "sudo reboot" and trying to restart with KDM or the Gnome widget). If I really want to restart the system I have to halt it first and hit the power button.
I'm using Jessie 8.3 on Dell laptop Latitude E7240.
Now when I plug the laptop in the Dell eDock docking station, external monitor connected through DisplayPort and it is detected (according to xrandr output).
BUT nothing shows on the monitor (it stays black) and I get errors repeating in the kernel log:
[ 71.064428] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting.
I'm reloading my X301 Lenovo laptop with linux but need to make sure that whatever distro i choose will support displayport out. I'm currently running XP on it and DisplayPort -> HDMI (via converter) -> Sony 40" 1080 TV works great. Just Shift F7 and I'm off and running.
I tried Mint 10 and Debian 6.0.1 last night (via Live DVD) and while they both recognized the displayport, and I could set the resolution on a second monitor to 1920x1080, the output was scaled incorrectly and didn't show any user mouse movements etc... just the wallpaper basically.
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.
I tried to finally set-up surround sound on my Ubuntu 10.04 machine and i was successful in doing so after a while of changing settings and tinkering. After doing so though, i was later in the day not able to get into the Pulseaudio Volume Control, therefore, everything is stuck where it is and i can't change anything. When i try to open Pulseaudio Volume Control i get the error message, Connection failed, Connection refused. My programs still play sound and i can control the sound of the programs through the programs, but i cant control the sound of the sorround sound now and my main sound bar only affects my stereo speakers, not the surround ones.
I believe this may have happened after the random disk check on restart, but i can't 100% confirm that and i'm not even sure if they are related. I still have sound, but i have no way to control the volume of my entire system at once. I did some looking around online and saw that others are having or had the same issue, and it was through different versions of Linux also. somehow reset everything so i can access PAVC and start over . I also tried steps listed in another thread here on the same topic, but they weren't working and it also seemed to be for older Ubuntu versions.
It is most certainly my fault but I am now without a sound volume control and it does not show up in the add to panel.What can I do here? Does your icon have code that that I can use or can I find the file somewhere and create a link? Alsa mixer works ok and nothing is muted and I have sound so as to play music. The Internet connection and the power connection icons also don't appear.
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.
I recently installed Ubuntu 10.04 via Wubi (Dual-boot with Win 7; everything went smoothly; was able to install Nvidia drivers, various packages and everything went silky smooth overall. This morning I attempted to log-in to my Profile (on Ubuntu) and I found that my Keyboard would not respond; I attempted to unplug and replug the keyboard back in, restart the computer, everything; yet it will not detect my keyboard.
Okay well I have inserted my SD card into my pc.. but ubuntu doesnt seem to be picking it up? It's not showing any signs, i remember it use to show a little icon with the name of the card on the desktop or in the "places" menu but I dont see it.
In my laptop, ealier in XP OS whenever I was connecting USB Modem, it was giving message "Power surge on USB Hub Port". Now, I have put new hard disk with a single partition and installed Ubuntu 9.04 on it. After installation, it was detecting USB for a day or two and I/net was working fine. But now the system is not detecting USB Modem et al. Is it because of some hardware problem or is there anything that I can check into Ubuntu?
Well I have this really shweet Samson C01U usb studio condenser mic. When it is plugged in before I boot my machine, everything works like a charm, and I can sound like a rockstar recording my stuffs in UbuntuStudio 10.04 x64.But when I'm not being a rockstar, I'm using my normal Lucid distro to go about my everyday tasks. So when I decide to call someone on skype, I plug the mic in, and nothing happens. The sound config window does not show the device? I do not want to reboot every time to use the mic (and that's all that works), and I do not want to leave it standing on my desk either.
