Thanks Colin. Good to know there are more advanced debugging channels! Good news is that I managed to get my flash work again (v10 already) by installing *nspluginwrapper* with existing *flashplugin-nonfree*, seems a must to have both on Ubuntu to get Flash10 working for me. No *libflashsupport* needed. As for the broken connection I need further test after I install your recommended package and get back here. Cheers, Beinan On Wed, Dec 10, 2008 at 4:15 AM, Colin Guthrie <gmane at colin.guthr.ie> wrote: > 'Twas brillig, and Beinan Li at 10/12/08 07:00 did gyre and gimble: > > Running Ubuntu 8.04 on my HP Pavilion dv6000 laptop. > > I have a USB SB Live! soundcard and a builtin AC97. > > Everytime when I unplugged my USB soundcard, pulseaudio connection is > > broken, > > and I had to restart X to bring it back (pulseaudio -k && pulseaudio -D > > doesn't do the trick). > > Sounds like pulse has deadlocked somehow. After pulseaudio -k, can you > check to see if pulse is still running (ps aux| grep pulseaudio). If it > is then you can try a killall -9 pulseaudio to really nuke it, but it > would be good to get some debug out of it. > > What really needs to happen tho' is to get a backtrace out of this. > > Do the following in your shell (each block is one line): > > export LD_BIND_NOW=1 > > gdb pulseaudio > > handle SIGXCPU SIGPWR SIG33 SIG34 SIG42 SIG43 SIG44 SIG45 SIG46 SIG47 > SIG48 SIG49 SIG50 SIG51 SIG52 SIG53 SIG63 SIG62 SIG61 SIG60 SIG59 SIG58 > nostop noprint > > run > > > This will run pulse under GDB (please note that you need to install > debugging symbols - don't know how that is done in Ubuntu). > > Leave this terminal open and then make pulse crash. When it does go back > to this terminal and you should be at a prompt again. Type: > thread apply all bt full > > Then copy the output to a file and attach it to a bug report on > http://www.pulseaudio.org/ > > It would also help to say what version of PA you are using. As it's an > older Ubuntu, I'd guess it's the stock 0.9.10 version? > > > And sometimes flash for Firefox doesn't give sound, whether I install > > libflashsupport or flashplugin-nonfree. > > What version of the flash plugin are you using. With version 9 there are > deadlocks in the audio API that adobe expose. There is nothing we can do > about that as it's not open software. They have fixed a lot of the > issues with their version 10 so you should try that if you are not > already (in theory libflashsupport is not needed there but it may still > be nicer to use it - there is a nicer name for the audio stream but > that's trivial!). > > > And I constantly get message saying resource busy when I restart > > pulseaudio by -k -D. > > Chances are the first pulseaudio is not dying properly with -k as I > noted above. If that's the case it will still be hogging the sound > device and the second version cannot access it (although the second > version should not run really - but perhaps at this point some other app > - e.g. flash has started using ALSA directly and that's why it's busy). > > > HELP!!!!!! > > > > > > I pasted my `pulseaudio -vv` command output below. > > > > > > E: alsa-util.c: Error opening PCM device hw:0: Device or resource busy > > E: module.c: Failed to load module "module-alsa-sink" (argument: > > "device_id=0 > > sink_name=alsa_output.pci_8086_284b_sound_card_0_alsa_playback_0"): > > initialization failed. > > > Yeah this basically means that something is using the device. > > The output from the following command should tell you what application > is using the alsa device: > > Here is the output on my machine when pulse is playing a track. > > [colin at jimmy ~]$ sudo lsof | grep /dev/snd > kmix 7080 colin 10u CHR 116,0 0t0 > 3836 /dev/snd/controlC0 > pulseaudi 7730 colin mem CHR 116,16 > 3735 /dev/snd/pcmC0D0p > pulseaudi 7730 colin 17u CHR 116,0 0t0 > 3836 /dev/snd/controlC0 > pulseaudi 7730 colin 18u CHR 116,16 0t0 > 3735 /dev/snd/pcmC0D0p > pulseaudi 7730 colin 19u CHR 116,0 0t0 > 3836 /dev/snd/controlC0 > pulseaudi 7730 colin 26u CHR 116,0 0t0 > 3836 /dev/snd/controlC0 > > HTHs you debug some more. > > Col > > -- > > Colin Guthrie > gmane(at)colin.guthr.ie > http://colin.guthr.ie/ > > Day Job: > Tribalogic Limited [http://www.tribalogic.net/] > Open Source: > Mandriva Linux Contributor [http://www.mandriva.com/] > PulseAudio Hacker [http://www.pulseaudio.org/] > Trac Hacker [http://trac.edgewall.org/] > > _______________________________________________ > pulseaudio-discuss mailing list > pulseaudio-discuss at mail.0pointer.de > https://tango.0pointer.de/mailman/listinfo/pulseaudio-discuss > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20081210/cf9b41f2/attachment.htm>
