From: bugtrack@alsa-project.org
To: alsa-devel@alsa-project.org
Subject: [ALSA - driver 0001869]: Playing surround sound produces 100% CPU load
Date: Sun, 23 Jul 2006 13:49:57 +0200 [thread overview]
Message-ID: <daa2f3e5d08693bae43847f38f7a4531@bugtrack.alsa-project.org> (raw)
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: 07-23-2006 13:49 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 - 07-23-06 11:34
----------------------------------------------------------------------
chris@bjork:~> cat /proc/asound/pcm
00-00: CS46xx : CS46xx : playback 31 : capture 1
00-01: CS46xx - Rear : CS46xx - Rear : playback 31
00-02: CS46xx - IEC958 : CS46xx - IEC958 : playback 1
00-03: CS46xx - Center LFE : CS46xx - Center LFE : playback 31
01-00: Intel ICH : NVidia nForce2 : playback 1 : capture 1
01-01: Intel ICH - MIC ADC : NVidia nForce2 - MIC ADC : capture 1
01-02: Intel ICH - IEC958 : NVidia nForce2 - IEC958 : playback 1
bjork:~ # lspci -vn
00:00.0 Class 0600: 10de:01e0 (rev a2)
Flags: bus master, 66MHz, fast devsel, latency 0
Memory at e8000000 (32-bit, prefetchable) [size=32M]
Capabilities: [40] AGP version 3.0
Capabilities: [60] HyperTransport: Host or Secondary Interface
00:00.1 Class 0500: 10de:01eb (rev a2)
Subsystem: 1695:1000
Flags: 66MHz, fast devsel
00:00.2 Class 0500: 10de:01ee (rev a2)
Subsystem: 1695:1000
Flags: 66MHz, fast devsel
00:00.3 Class 0500: 10de:01ed (rev a2)
Subsystem: 1695:1000
Flags: 66MHz, fast devsel
00:00.4 Class 0500: 10de:01ec (rev a2)
Subsystem: 1695:1000
Flags: 66MHz, fast devsel
00:00.5 Class 0500: 10de:01ef (rev a2)
Subsystem: 1695:1000
Flags: 66MHz, fast devsel
00:01.0 Class 0601: 10de:0060 (rev a3)
Subsystem: 1695:1000
Flags: bus master, 66MHz, fast devsel, latency 0
Capabilities: [48] HyperTransport: Slave or Primary Interface
00:01.1 Class 0c05: 10de:0064 (rev a2)
Subsystem: 1695:1000
Flags: 66MHz, fast devsel, IRQ 255
I/O ports at e400 [size=32]
Capabilities: [44] Power Management version 2
00:02.0 Class 0c03: 10de:0067 (rev a3) (prog-if 10)
Subsystem: 1695:1000
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 11
Memory at ed003000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
00:02.1 Class 0c03: 10de:0067 (rev a3) (prog-if 10)
Subsystem: 1695:1000
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 4
Memory at ed004000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
00:02.2 Class 0c03: 10de:0068 (rev a3) (prog-if 20)
Subsystem: 1695:1000
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 3
Memory at ed005000 (32-bit, non-prefetchable) [size=256]
Capabilities: [44] Debug port
Capabilities: [80] Power Management version 2
00:06.0 Class 0401: 10de:006a (rev a1)
Subsystem: 1695:1000
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 7
I/O ports at d400 [size=256]
I/O ports at d800 [size=128]
Memory at ed001000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
00:08.0 Class 0604: 10de:006c (rev a3)
Flags: bus master, 66MHz, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: ec000000-ecffffff
Prefetchable memory behind bridge: 40000000-400fffff
00:09.0 Class 0101: 10de:0065 (rev a2) (prog-if 8a [Master SecP PriP])
Subsystem: 1695:1000
Flags: bus master, 66MHz, fast devsel, latency 0
I/O ports at f000 [size=16]
Capabilities: [44] Power Management version 2
00:1e.0 Class 0604: 10de:01e8 (rev a2)
Flags: bus master, 66MHz, medium devsel, latency 32
Bus: primary=00, secondary=02, subordinate=02, sec-latency=32
Memory behind bridge: ea000000-ebffffff
Prefetchable memory behind bridge: e0000000-e7ffffff
01:06.0 Class 0200: 10ec:8139 (rev 10)
Subsystem: 10ec:8139
Flags: bus master, medium devsel, latency 32, IRQ 10
I/O ports at c000 [size=256]
Memory at ec112000 (32-bit, non-prefetchable) [size=256]
[virtual] Expansion ROM at 40000000 [disabled] [size=64K]
Capabilities: [50] Power Management version 2
01:07.0 Class 0200: 10ec:8029
Flags: medium devsel, IRQ 11
I/O ports at c400 [size=32]
[virtual] Expansion ROM at 40010000 [disabled] [size=32K]
01:08.0 Class 0280: 1050:6692 (rev 01)
Subsystem: 1234:5678
Flags: medium devsel, IRQ 12
Memory at ec110000 (32-bit, non-prefetchable) [size=4K]
I/O ports at c800 [size=256]
01:09.0 Class 0401: 1013:6003 (rev 01)
Subsystem: 1681:0051
Flags: bus master, slow devsel, latency 32, IRQ 5
Memory at ec111000 (32-bit, non-prefetchable) [size=4K]
Memory at ec000000 (32-bit, non-prefetchable) [size=1M]
Capabilities: [40] Power Management version 2
01:0a.0 Class 0000: 1000:0001 (rev 01)
Flags: bus master, medium devsel, latency 32, IRQ 10
I/O ports at cc00 [size=256]
Memory at ec113000 (32-bit, non-prefetchable) [size=256]
02:00.0 Class 0300: 10de:0281 (rev a1)
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 11
Memory at ea000000 (32-bit, non-prefetchable) [size=16M]
Memory at e0000000 (32-bit, prefetchable) [size=128M]
[virtual] Expansion ROM at eb000000 [disabled] [size=128K]
Capabilities: [60] Power Management version 2
Capabilities: [44] AGP version 3.0
----------------------------------------------------------------------
Raymond - 07-23-06 13:49
----------------------------------------------------------------------
Please update alsa-utils to the same version of alsa-lib
speaker-test -c 2 -t wav
speaker-test -c 4 -Dsurround40 -t wav
speaker-test -c 6 -Dsurround51 -t wav
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
======================================================================
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next reply other threads:[~2006-07-23 11:49 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-23 11:49 bugtrack [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-08-01 8:46 [ALSA - driver 0001869]: Playing surround sound produces 100% CPU load bugtrack
2006-08-01 7:36 bugtrack
2006-08-01 6:15 bugtrack
2006-08-01 2:15 bugtrack
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2006-07-31 21:16 bugtrack
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