Ubuntu Multimedia :: Snd_pcm_hw_params() Call Hangs In 10.04
Oct 15, 2010
I am trying to get a program running on Ubuntu 10.04 that I wrote and ran successfully on Ubuntu 8.04. It uses the ALSA sound interface. As part of the initialization it calls snd_pcm_hw_params() to write parameters to the driver. On 10.04 this call hangs (does not return). Here are the 'snd_' entries displayed by lsmod (actually: lsmod | grep snd):
Obviously the program compiles OK. Any ideas why snd_pcm_hw_params() should hang? Its arguments were fine when running under 8.04... My machine is a new Dell Inspiron 570.
In practice I have a script that call a java program that call a linux system command. The script if I run it, from a shell functions well,so it is not a java problem. The problem come out when i put this script in a crontab schedulation. The result in this case is that java do not execute the system command. I think it depends on crontab
I'm using a PS3 Eye, which seems to work out of the box on my Ubuntu 9.10 system (both Skype, and Cheese). When I have a pidgin chat window open for one of my contacts, in the media options (under Conversation) the audio, video, and audio/video option is ghosted out (non selectable).
I have the Video plugin checked (ticked), with the input video selected (the cam shows up in the list, and it's selected): for the Eye, I select for both the Audio and Video device. But when I close the plugin configuration window, it defaults back to "Default" which i'm guessing is part of the problem.The audio and video options in pidgin is relative to my system correct? So even if the other user doesn't have that capability, it'll still let me use audio/video for them?
I'm trying to get video calls to work using Empathy 2.30.0. I'm running the 10.04 beta right now, but I've had this problem ever since I installed Empathy. The problem is essentially that I don't even see the option to do a video call with my contact. I can do an audio call, but the option to do a video call is greyed out.
My webcam is built-in (the computer is a Dell Inspiron 1545n). I know that it _can_ work under Linux, as I regularly use Skype. Also, just after I upgraded to 10.04, I briefly had the "video call" option, but when the program crashed I tried to call, and then the option was gone again. What was strange is that for a little bit, before it crashed, my webcam was working, and I could see the image it was receiving. So it can't even be that Empathy just can't use my webcam.
Does anyone know anything about this problem? Everywhere I've looked says that Empathy should be able to make calls using GTalk.
This forum has been a wonderful treasure of knowledge. I am stuck up with something thats getting onto my nerves. I have installed lucid and followed the perfect desktop guide.
I have a mkv file (4.6Gigs) 1080p HD with DTS 5.1 audio. when I play the file either of the video or audio gets stuck (mostly video) I tried every possible configs from this forum but in vain. Im using Dell LAT D830 with 2GB RAM 2.2GHz CPU NVIDIA Graphics.
I'm having a problem with Skype. Whenever someone calls me, the incoming call popup shows up, but I can hear no sound playing. Further, if I go in Options/Notifications and try to test the incoming call event, I'm having the same problem.
The .wav file exists and Skype can play it back. I have tested this by assigning that particular .wav to a different event, where it works as expected. Additionally, the other events, e.g. outgoing call, appear to be working normally. This would suggest, that the problem lies with the incoming call event, rather than the particular sound.
Right now in order to do some recording I use Skype and Skype Call Recorder, but Skype only does audio at 16Khz. Is there some other similar program that could be used that could also be recorded at a higher quality?
I have installed Ubuntu 10.10 on ASPIRE 5315 (intel celeron)Installed SKYPE BETA 2.1.0.8.1.I have external webcam which works with CHEESE ( I could see myself and takepictures).However when I open SKYPE onle telephone (voice) call are available. I Do not have the option for video calls. I do not have/see a tool bar or a side bar so I cannot make any change or test the video. I tried to delete and download SKYPE again and id did not work.What can I do ?If you post an answer please provide step by step since I am not familiar with ubuntu.
I'm using Ubuntu 11.04 x32 Today I started Skype and I couldn't hear the Skype logging sound. Nevertheles I could see the contacts online. When I tried to write messages in the chat they couldn't receive them. When I tried to call nothing worked. After that it seemed that Skype was completely blocked. I clicked with the right button on the green icon of Skype and chose "quit" but it wouldn't close. 1 I logged off from Ubuntu and on again. I opened Skype. I made right click in the green icon and chose "Options"
2 I went to the "Sound Devices" menu in the left part of the window
3 I removed the tick for "Allow Skype to automatically adjust my mixer levels"
4 I closed Skype and opened it again and the sound problem was gone.
Sound Recorder is working fine. But when try to make normal call or test call I cannot record sound my internal mic in SKYPE. As I speak something immediately the sound level of mic drops to zero. Alsa driver are installed. HDA intel conexant mic.
I am running Ubuntu 9.10 in a HP Pavillion dv7t Laptop. The webcam in the laptop is working fine, but when I try to place a video call to gtalk from Empathy it gets disconnected immediately. The regular chat and the audio calls work fine.
This just started happening recently.. I have no problems with 1on1 skype calls but as soon as I try to bring in another party all of my skype audio just sounds like some really really bad video game from the 70's. Just beeps and borks. The other people on the call can hear each other just fine and dandy, but on my end I can't hear anything except for beep boop beep boop.
I have a strange problem with my skype beta (latest) and Pidgin (gmail account) the problem is when i make voice call, it works fine for 1 or 2 mins then the voice drops and it connects after 20,30 secs.
Zattoo (TV watching application, see [URL]) used to work fine until... a couple days ago, presumably. Now the window vanishes again before anything appears other than the menu bar. From KPackagekit's history I can tell there were updates to ligbail18, libtk2.0-common. libgtk2.0-0, libgtk2.0-bin and others on Tuesday 08 June 2010 but I don't know if that was it.
Code:
$ Zattoo (process:17833): GLib-GObject-CRITICAL **: /build/buildd/glib2.0-2.24.1/gobject/gtype.c:2706: You forgot to call g_type_init() (process:17833): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
When I try to play netradio in Rhythmbox it hangs. This only happens with Windows Media Streams, not with Ogg Streams, but as most internet radio is in Windows Media Streams this is a problem The link I am trying to play uses the mms protocol. When I try to play the link in Movie player it also just hangs, :S, but in VLC it works, but VLC is not a very handy music player.
I suspect that I would maybe need some GStreamer plugins but which? The link I try to play is this: mms://wmscr1.dr.dk/e04ch10m But I am not sure it will play outside Denmark, so you might not be able to this the link out yourself :S
I try to play some music with my PlugComputer and I use an USB audio key. I have succefully installed linux-sound-base, alsa and mpg123. When I run mpg123 the sound loud during 5 seconds and stop. After the device is locked and nothing can be played without rebooting.
I have a computer that is off the internet. It usually works right since I took great care to make it as 'clean' as possible from outside forces.Lately it just hangs whenever GDM is about to start.How to troubleshoot?
I tried a live CD SystemRescueCD, it works even the desktop environment works. so I e2fsck the partitions of the hard drive okay, memory test/checked the 1.2GBRAM -- passed other than these, I have no clue how to troubleshoot.Oh, I also used an nvidia driver which I forgot how I did it because it was installed almost a year ago.
Thunar, for some reason, always seems to become non-response and consumes 100% CPU after I open a certain folder on my external hard drive. What could be the cause of this? I've tried opening the same folder on Windows and it didn't give me any problem, so I'm assuming that the problem lies within Thunar, and not the external hard drive itself.
One DVD+R that I made from a download plays perfectly on my computer's player. Yet, every time that I insert it into my stand alone player connected to my TV, it stutters and stops repeatedly.If the disc were dirty, it should misbehave in my computer as well, no? All other DVD's that I have made have no problem playing in my stand alone player
I am trying to install Ubuntu 10.10 x64 on a HP Pavilion p6565uk.
My PC is x64 compatible, although ubuntu will not install.
I don't get to any gui, it says ubuntu will continue install in 5 seconds, at 0, nothing happens. The CPU light is flashing, but nothing happens.
After about 10 minutes, it reboots, but when the HP splash screen shows (Before the boot selection screen) it just hangs. I have to do a hard shutdown to boot back up.
Ubuntu Hangs While Trying to Transfer Photos and Videos From Digital Camera I have a Canon Powershot S3 IS and I've been trying to transfer photos and videos (13 gigs worth) from it to a local folder (I'm currently using Ubuntu 10.04) via USB cable. I've had very little success - I've only transferred one video file, everything else failed, including a single photo transfer attempt!
First it would take really long for the actual transfer to start after I've dragged and dropped files from the camera to a local folder (or even doing ctrl+c and ctrl+v). The progress bar would appear, but then it would take forever before the file transfer would start. In the case of the single video transfer, it started and finished after a while. But when I selected all of the videos on the camera and tried to transfer it all, it would just take a really long time, slow down gnome to the point of hanging, and then eventually just show me an error message indicating nothing could be transferred.
I have the most bizarre problem that started with 10.04. Up until 10.04 I had zero problems with my setup. I am convinced this has something to do with NVIDIA 7100GS and 10.04.
Here is the problem in a nutshell. I have my home desktop, which I upgraded to 10.04 from 9.10. Everything went just fine except when it booted up and I logged in, the video "shut off", the computer "hung" for about 10 seconds, then came back. I'm able to use it for about 10 seconds then the same thing happens. Video blanks, system hangs, comes back.
I've tried turning off compiz, no effect. I've tried nvidia-current along with other versions (including the one from the website) and they ALL have the same problem. I know it's not a hardware issue as I can boot the live CD just fine. I also upgraded to 10.04.1 and that worked fine until I installed the nvidia drivers. Here is what I dont understand either. I did a apt-get remove --purge nvidia* and the problem still existed after that.
Something is seriously wonky. I REALLY don't want to re-install the entire box. Now, here is something else that doesnt make sense. I have 10.04 installed on my work box with a Nvidia 9800 graphics card and I have no issues at all.
Background: I was attempting to install new Nvidia drivers. When they didn't work, I madly attempted to uninstall, reinstall, different drivers and configuration files following advice posted on forums. There were many, many installs and restarts during this process, causing a variety of problems and errors. Currently, I have purged all the nvidia drivers except the nvidia-current ones with the xorg.conf file generated by running nvidia-xconfig.
Current problems: Boot process gets to purple Ubuntu screen with 5 changing dots beneath, but hangs there forever. Pressing esc reveals that the boot process gets to "checking battery state [ok]", but fails to load the login screen. Pressing ctrl-alt F1 allows me to log-in and startx successfully starts Xorg with the proper Nvidia drivers.Question:How can I fix things so that the system does not hang at the Ubuntu loading screen? Or, how can I diagnose what is causing the error?I suspect there may be a problem with the xorg.conf file that's being generated by nvidia-xconfig. Please take a look:
Code: # nvidia-xconfig: X configuration file generated by nvidia-xconfig # nvidia-xconfig: version 1.0 (buildmeister@builder75) Thu Apr 22
As of today I can't seem to use the search feature of Nautilus (in GNOME 3). Say I open my home folder and press Ctrl-F to get the search bar. Whatever I type, as soon as I stop typing and Nautilus should start the search process, it just freezes completely. The cursor stops blinking and that's it, all I can do is run `killall nautilus` from a terminal. According to the System Monitor nothing is really using CPU.
