why may sound system can not run??

[daixf]

before I install gentoo ,when I run the kde ,the sound system is run correct.But ,when I have install some application,then I run the kde again
,the sound server can not run again? I don't knew why?
the system output a message;can not locate moudle :0 which is needed for
/dev/:0;
holp someone can help me!?
in a no sound's linux ,I can not work well!

[jkt]

Under KDE, go to control center, select sound & multimedia, sound system, hardware, and select different device/subsystem.

[daixf]

I use a guest user to changed that ,the kde crash,so when I su to
root to configure it,the kde also crash.
I don't knew why?!
My sound card is ESS;
which type I should choose ?open sound or alsa;and others;
any one can tell me: how I find the configure files;
I don't want to change it in kde,because when I changed it ,the kde will
crash,then anything will be save;so I want to configure it in console;
I have look the topics in this forum!maybe my problem is :
when I install other application the sound moulde maybe change to moulde.old;so the system can not load it:

holp your any answer!

[jkt]

you're mixing several problems together. basic layer is provided by linux kernel, and it can be provided in two ways, ALSA and OSS. OSS is older standard, ALSA newer one, better and recommended. applications can use this layer directly and they often do.
KDE, however, provides (as do other desktop systems like gnome) another layer called arts. applications using arts (ie. compiled againgst arts libraries) don't need to know anything about alsa, oss or any other sound systems being used on another systems, from bsd to solaris, only arts, as they're talking directly to it.

to your problem - report like "it doesn't work, but worked on another distribution", without further information, is useless. If you want us to help you, you'll have to provide more informations.

[daixf]

thank you!
detailed,I update my kde from 3.2 to 3.3,the problem come out!
affter I udpate ,the first time ,I run the kde ,the knotify is crash!
when I use the control center to configure the sound system ,the knotify is
also crash!
I have watch My USE ,in the /etc/make.profile/make.default; the USE
has difine the arts;
and in the ./kde/share/knotifyrc ,I also turn on the arts = ture,and let the
knotify run?
but I still ,can not success!

[jkt]

what is your native language?

what do you mean with "knotify crashed"? what did it say? include exact error messages, if possible...
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[gungholady]

I'm having a very similar problem. Whenever I use the kde control panel to make any changes to the sound section, everything is fine until I hit apply. Then a window pops up saying the program crashed. Here is the backtrace:

Using host libthread_db library "/lib/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1231529792 (LWP 19183)]
[KCrash handler]
#7 0xb62805a6 in std::operator==<unsigned long, unsigned long&, unsigned long*> () from /usr/kde/3.3/lib/libmcop.so.1
#8 0xb627f957 in std::deque<unsigned long, std::allocator<unsigned long> >::empty () from /usr/kde/3.3/lib/libmcop.so.1
#9 0xb627ed8d in std::stack<unsigned long, std::deque<unsigned long, std::allocator<unsigned long> > >::empty () from /usr/kde/3.3/lib/libmcop.so.1
#10 0xb627ddd2 in Arts::Pool<Arts::Buffer>::allocSlot ()
from /usr/kde/3.3/lib/libmcop.so.1
#11 0xb627b1b1 in Arts::Dispatcher::createRequest ()
from /usr/kde/3.3/lib/libmcop.so.1
#12 0xb628b124 in Arts::Object_stub::_lookupMethod ()
from /usr/kde/3.3/lib/libmcop.so.1
#13 0xb628b2fd in Arts::Object_stub::_lookupMethodFast ()
from /usr/kde/3.3/lib/libmcop.so.1
#14 0xb632ad61 in Arts::SynthModule_stub::stop ()
from /usr/kde/3.3/lib/libartsflow_idl.so.1
#15 0xb68af5c7 in KAudioManagerPlay::stop ()
from /usr/kde/3.3/lib/libartskde.so.1
#16 0xb68aeff5 in KAudioManagerPlay::~KAudioManagerPlay ()
from /usr/kde/3.3/lib/libartskde.so.1
#17 0xb68cb378 in KNotify::~KNotify () from /usr/kde/3.3/lib/kde3/knotify.so
#18 0xb68ca6a4 in kdemain () from /usr/kde/3.3/lib/kde3/knotify.so
#19 0x0804e24a in ?? ()
#20 0x00000001 in ?? ()
#21 0x080af0d0 in ?? ()
#22 0x00000001 in ?? ()
#23 0x00000000 in ?? ()
#24 0x00000000 in ?? ()
#25 0x00000000 in ?? ()
#26 0x00000000 in ?? ()
#27 0x00000000 in ?? ()
#28 0x00000000 in ?? ()
#29 0x00000000 in ?? ()
#30 0x00000000 in ?? ()
#31 0x00000000 in ?? ()
#32 0x00000000 in ?? ()
#33 0x00000000 in ?? ()
#34 0x00000000 in ?? ()
#35 0x00000000 in ?? ()
#36 0x00000000 in ?? ()
#37 0x00000000 in ?? ()
#38 0x00000000 in ?? ()
#39 0x00000000 in ?? ()
#40 0x00000000 in ?? ()
#41 0x00000000 in ?? ()
#42 0x00000000 in ?? ()
#43 0x00000000 in ?? ()
#44 0x0813e0e8 in ?? ()
#45 0x00000000 in ?? ()
#46 0x00000000 in ?? ()
#47 0x00000000 in ?? ()
#48 0x00000000 in ?? ()
#49 0x00000000 in ?? ()
#50 0x00000000 in ?? ()
#51 0x00000000 in ?? ()
#52 0xb75aa230 in vtable for QGArray () from /usr/qt/3/lib/libqt-mt.so.3
#53 0x00000000 in ?? ()
#54 0x00000000 in ?? ()
#55 0x00000000 in ?? ()
#56 0x00000000 in ?? ()
#57 0x00000000 in ?? ()
#58 0x00000000 in ?? ()
#59 0x00000000 in ?? ()
#60 0x00000000 in ?? ()
#61 0x00000000 in ?? ()
#62 0x00000000 in ?? ()
#63 0x00000000 in ?? ()
#64 0x00000000 in ?? ()
#65 0x00000000 in ?? ()
#66 0x00000000 in ?? ()
#67 0x00000000 in ?? ()
#68 0x00000000 in ?? ()
#69 0x00000000 in ?? ()
#70 0x00000000 in ?? ()
#71 0x00000000 in ?? ()
#72 0x080ac578 in ?? ()
#73 0x00000000 in ?? ()
#74 0x00000000 in ?? ()
#75 0x00000000 in ?? ()
#76 0x08138000 in ?? ()
#77 0x00000000 in ?? ()
#78 0x00000000 in ?? ()
#79 0x00000000 in ?? ()
#80 0xb75aa230 in vtable for QGArray () from /usr/qt/3/lib/libqt-mt.so.3
#81 0x080aef90 in ?? ()
#82 0x00000000 in ?? ()
#83 0x00000000 in ?? ()
#84 0x080545e0 in vtable for QCString ()
#85 0x080af118 in ?? ()
#86 0x00000000 in ?? ()
#87 0x00000000 in ?? ()
#88 0x080545e0 in vtable for QCString ()
#89 0x08099628 in ?? ()
#90 0x00000000 in ?? ()
#91 0x00000000 in ?? ()
#92 0x080545e0 in vtable for QCString ()
#93 0x081c2e18 in ?? ()
#94 0x00000000 in ?? ()
#95 0x00000000 in ?? ()
#96 0x080545e0 in vtable for QCString ()
#97 0x081c2e18 in ?? ()
#98 0x00000000 in ?? ()
#99 0x00000000 in ?? ()
#100 0x080545e0 in vtable for QCString ()
#101 0x08099638 in ?? ()
#102 0x00000000 in ?? ()
#103 0x00000000 in ?? ()
#104 0x080f0190 in ?? ()
#105 0x08060908 in ?? ()
#106 0x00000000 in ?? ()
#107 0x00000000 in ?? ()
#108 0x00000000 in ?? ()
#109 0x080527d6 in _IO_stdin_used ()
#110 0xbffff758 in ?? ()
#111 0x080514fd in ?? ()
#112 0x00000001 in ?? ()
#113 0x0805d3b9 in ?? ()
#114 0x00000000 in ?? ()
#115 0x00000000 in ?? ()
#116 0x00000000 in ?? ()
#117 0x00000000 in ?? ()
#118 0x00000000 in ?? ()
#119 0x00000000 in ?? ()
#120 0x00000000 in ?? ()
#121 0x080527d6 in _IO_stdin_used ()
#122 0xbffff6d8 in ?? ()
#123 0xb69b3236 in __cxa_atexit () from /lib/libc.so.6


Maybe this will help to figure out the problem. The sound section of the control panel is the only place there is a problem. I tried completely wiping out my .kde directories and configurations and starting with a clean setup. The crashes still occur.

[jkt]

[outspoken]

forget kde for a moment and work on your sound.

open a console and run an mp3 using 'mplayer some.mp3' to see if your soundcard is even working. if you get an error message there then check your dmesg and see if there is a problem loading your sound card. it may be the module is not loaded, or an alsa/art/etc issue. if there is no error in mplayer but nothing is heard then run alsamixer at command line and check to see if your audio levels are muted or turned on high enough for audio to be heard. run mplayer mp3 again. if you hear something now work on kde issue.

if you do have dmesg error then try searching the forums for your soundcard and the error message.

[Erdie]

I have a similar problem:
the KDE sounds are still working, since the upgrade from KDE 3.3.0 to 3.3.1 knotify crashes after applying any changes to the sound system in the control center. Deletion of knotfyrc did not fix the problem.
This is no module, kernel or driver problem because with kde 3.3.0 everything works perfectly !

kind regards
Erdie

[jkt]

[Erdie]

[jkt]

oops, I'm getting the same error with my kde/3.3.1, but it doesn't kill artsd, only knotify crashes... weird
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[Erdie]

it becomes worse ..
sometimes the whole desktop freezes while clicking on apply !

[jkt]

[Erdie]

[zerojay]

I'm having a very similar problem as the others that have posted here, where arts works for maybe the first sound and never again (eg. KDE login sound) and then it seems like arts just won't play anything anymore. I've done all the editing of knotifyrc and killing both artsd and knotify and arts might play the next sound notification and then get stuck doing nothing again. I thought that this might have been caused by the fact that I'm using Gentoo Hardened, but I guess not.

[kenyon]

I was having these problems with arts and knotify too. I found the solution here https://forums.gentoo.org/viewtopic.php?t=227727&highlight=kde+artsd

Basically, don't use arts (uncheck Enable Sound System in the KDE Control Center), get your sound working with ALSA, and use that allplayer script provided in the thread linked above.

[jkt]

just to share my $.02, running arts on dual-card setup, just fine...
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