A NOTE has been added to this issue. ====================================================================== <https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1869> ====================================================================== Reported By: bitmage2 Assigned To: ====================================================================== Project: ALSA - driver Issue ID: 1869 Category: CORE - pcm Reproducibility: always Severity: minor Priority: normal Status: new Distribution: SuSE Linux 10.0 Kernel Version: Linux 2.6.13-15.8-default #1 Tue Feb 7 11:07:24 UTC 2006 i686 athlon i386 GNU/Linux ====================================================================== Date Submitted: 02-23-2006 00:48 CET Last Modified: 07-26-2006 10:27 CEST ====================================================================== Summary: Playing surround sound produces 100% CPU load Description: I am using the CS46xx with a Hercules Gametheater XP 5.1 . It plays back stereo without problems. I wanted to use the rest of my 5.1 speaker set, so for a test I ran the speaker-test program. Running it without parameters or with 2 or 4.0 channels works also fine. So far so good. But when I run it with 5.0 channels or 5.1 channels the CPU load of speaker-test goes to 100%. I'll show the output of top along with the command lines below (for the 2.0 and 5.1 case) in the "Additional Information" box. ====================================================================== ---------------------------------------------------------------------- bitmage2 - 07-26-06 08:41 ---------------------------------------------------------------------- I can run 10 instances of "speaker-test -c 6 -Dsurround51 -t wav". Instances 1-5 run correct, instances 6-10 produce wrong noises (quickly looping sound), and instance 11 tells me: ----- Unable to set hw params for playback: No such device or address Setting of hwparams failed: No such device or address ----- I will try the the upmix plugin and dot the set_params_test.c test in the following couple of days. Christian ---------------------------------------------------------------------- Raymond - 07-26-06 10:27 ---------------------------------------------------------------------- #define DSP_MAX_PCM_CHANNELS 32 #define DSP_MAX_SRC_NR 14 max. instances limited by pcm_channels stereo 31 * 1 <= ( 32 - 1 ) surround40 15 * 2 <= ( 32 - 1 ) surround51 10 * 3 <= ( 32 - 1 ) Issue History Date Modified Username Field Change ====================================================================== 02-23-06 00:48 bitmage2 New Issue 02-23-06 00:48 bitmage2 Distribution => SuSE Linux 10.0 02-23-06 00:48 bitmage2 Kernel Version => Linux 2.6.13-15.8-default #1 Tue Feb 7 11:07:24 UTC 2006 i686 athlon i386 GNU/Linux 02-23-06 00:54 bitmage2 Note Added: 0008164 02-23-06 00:55 bitmage2 Issue Monitored: bitmage2 07-11-06 05:58 Raymond Note Added: 0010964 07-14-06 20:57 bitmage2 Note Added: 0011004 07-14-06 20:59 bitmage2 Note Added: 0011005 07-14-06 21:25 rlrevell Note Added: 0011006 07-14-06 22:40 bitmage2 Note Added: 0011008 07-14-06 22:57 rlrevell Note Added: 0011009 07-15-06 01:28 bitmage2 Note Added: 0011013 07-15-06 01:45 rlrevell Note Added: 0011014 07-15-06 05:09 Raymond Note Added: 0011017 07-15-06 07:17 Raymond Note Edited: 0011017 07-23-06 11:34 bitmage2 Note Added: 0011183 07-23-06 13:49 Raymond Note Added: 0011185 07-23-06 14:14 Raymond Note Added: 0011186 07-23-06 14:16 Raymond Note Deleted: 0011186 07-23-06 15:04 bitmage2 Note Added: 0011189 07-24-06 04:19 Raymond Note Added: 0011209 07-24-06 05:04 Raymond Note Edited: 0011209 07-24-06 20:38 bitmage2 Note Added: 0011214 07-25-06 03:00 Raymond Note Added: 0011223 07-25-06 03:03 Raymond Note Edited: 0011223 07-25-06 03:05 Raymond Note Edited: 0011223 07-25-06 10:05 Raymond Note Edited: 0011223 07-25-06 10:13 Raymond Note Edited: 0011223 07-25-06 21:53 bitmage2 Note Added: 0011232 07-26-06 02:03 Raymond Note Added: 0011235 07-26-06 02:09 Raymond Note Edited: 0011235 07-26-06 08:41 bitmage2 Note Added: 0011245 07-26-06 10:27 Raymond Note Added: 0011247 ====================================================================== ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
