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Linux 2.4.19 + lowlatency
Soyo TISU P-III 1.3GHz
Audiophile 2496 using RCA SPDIF
Alsa 0.9.0rc7
i followed the advice on Planet CCRMA.
i can monitor the SPDIF In. It works about 80% of the time. The
other 20% is silence and clicks. This result is in single user
mode on console. i have the card alone on IRQ 9 and nothing
else is sharing IRQ 9 (see attached lspci & dmesg output).
joshua@almost:~$ cat /proc/interrupts
CPU0
0: 20847 XT-PIC timer
1: 143 XT-PIC keyboard
2: 0 XT-PIC cascade
5: 0 XT-PIC usb-uhci
8: 1 XT-PIC rtc
9: 0 XT-PIC ICE1712
11: 384 XT-PIC usb-uhci, eth0
12: 25 XT-PIC PS/2 Mouse
14: 4794 XT-PIC ide0
15: 4 XT-PIC ide1
NMI: 0
ERR: 1
Turning on low-latency doesn't make any difference:
joshua@almost:~$ cat /proc/sys/kernel/lowlatency
1
(i tried the same setup on my SMP motherboard. It doesn't work
at all. 95% of the sound is lost. The Audiophile seems extremely
sensitive to hardware.)
i'm wondering if i have a defective Audiophile card? Any idea?
--
Victory to the Divine Mother!! after all,
http://sahajayoga.org http://why-compete.org
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00:00.0 Host bridge: Intel Corp. 82815 815 Chipset Host Bridge and Memory Controller Hub (rev 04)
Subsystem: Intel Corp.: Unknown device 0000
Flags: bus master, fast devsel, latency 0
Memory at e0000000 (32-bit, prefetchable) [size=64M]
Capabilities: [88] #09 [e104]
Capabilities: [a0] AGP version 2.0
00:01.0 PCI bridge: Intel Corp. 82815 815 Chipset AGP Bridge (rev 04) (prog-if 00 [Normal decode])
Flags: bus master, 66Mhz, fast devsel, latency 32
Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
Memory behind bridge: e6000000-e8ffffff
Prefetchable memory behind bridge: e4000000-e5ffffff
00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB PCI Bridge (rev 02) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=32
I/O behind bridge: 00009000-0000afff
Memory behind bridge: e9000000-e90fffff
00:1f.0 ISA bridge: Intel Corp. 82801BA ISA Bridge (LPC) (rev 02)
Flags: bus master, medium devsel, latency 0
00:1f.1 IDE interface: Intel Corp. 82801BA IDE U100 (rev 02) (prog-if 80 [Master])
Subsystem: Intel Corp.: Unknown device 2442
Flags: bus master, medium devsel, latency 0
I/O ports at f000 [size=16]
00:1f.2 USB Controller: Intel Corp. 82801BA/BAM USB (Hub #1) (rev 02) (prog-if 00 [UHCI])
Subsystem: Intel Corp. 82801BA/BAM USB (Hub #1)
Flags: bus master, medium devsel, latency 0, IRQ 11
I/O ports at b000 [size=32]
00:1f.3 SMBus: Intel Corp. 82801BA/BAM SMBus (rev 02)
Subsystem: Intel Corp.: Unknown device 2442
Flags: medium devsel, IRQ 11
I/O ports at 5000 [size=16]
00:1f.4 USB Controller: Intel Corp. 82801BA/BAM USB (Hub #2) (rev 02) (prog-if 00 [UHCI])
Subsystem: Intel Corp.: Unknown device 2442
Flags: bus master, medium devsel, latency 0, IRQ 5
I/O ports at b400 [size=32]
00:1f.5 Multimedia audio controller: Intel Corp. 82801BA/BAM AC'97 Audio (rev 02)
Subsystem: Unknown device 8384:7600
Flags: bus master, medium devsel, latency 0, IRQ 11
I/O ports at b800 [size=256]
I/O ports at bc00 [size=64]
01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP (rev 85) (prog-if 00 [VGA])
Subsystem: Matrox Graphics, Inc. Millennium G450 Dual Head
Flags: bus master, medium devsel, latency 32, IRQ 10
Memory at e4000000 (32-bit, prefetchable) [size=32M]
Memory at e6000000 (32-bit, non-prefetchable) [size=16K]
Memory at e7000000 (32-bit, non-prefetchable) [size=8M]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [dc] Power Management version 2
Capabilities: [f0] AGP version 2.0
02:01.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd. RT8139
Flags: bus master, medium devsel, latency 32, IRQ 11
I/O ports at 9000 [size=256]
Memory at e9000000 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
02:02.0 Multimedia audio controller: IC Ensemble Inc ICE1712 [Envy24] (rev 02)
Subsystem: IC Ensemble Inc: Unknown device d634
Flags: bus master, medium devsel, latency 32, IRQ 9
I/O ports at 9400 [size=32]
I/O ports at 9800 [size=16]
I/O ports at 9c00 [size=16]
I/O ports at a000 [size=64]
Capabilities: [80] Power Management version 1
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Linux version 2.4.19 (root@xxxxxxxxxxxxxxxxxx) (gcc version 2.95.4 20011002 (Debian prerelease)) #4 Thu Feb 13 13:53:58 IST 2003
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000000fff0000 (usable)
BIOS-e820: 000000000fff0000 - 000000000fff3000 (ACPI NVS)
BIOS-e820: 000000000fff3000 - 0000000010000000 (ACPI data)
BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved)
255MB LOWMEM available.
Advanced speculative caching feature not present
On node 0 totalpages: 65520
zone(0): 4096 pages.
zone(1): 61424 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/hda2 ro
Initializing CPU#0
Detected 1002.291 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 1998.84 BogoMIPS
Memory: 256832k/262080k available (1257k kernel code, 4860k reserved, 499k data, 68k init, 0k highmem)
Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode cache hash table entries: 16384 (order: 5, 131072 bytes)
Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
CPU: Before vendor init, caps: 0383f9ff 00000000 00000000, vendor = 0
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 256K
CPU: After vendor init, caps: 0383f9ff 00000000 00000000 00000000
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: After generic, caps: 0383f9ff 00000000 00000000 00000000
CPU: Common caps: 0383f9ff 00000000 00000000 00000000
CPU: Intel(R) Pentium(R) III CPU 1000MHz stepping 01
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
mtrr: v1.40 (20010327) Richard Gooch (rgooch@xxxxxxxxxxxxx)
mtrr: detected mtrr type: Intel
PCI: PCI BIOS revision 2.10 entry at 0xfb170, last bus=2
PCI: Using configuration type 1
PCI: Probing PCI hardware
Unknown bridge resource 0: assuming transparent
Unknown bridge resource 2: assuming transparent
PCI: Using IRQ router PIIX [8086/2440] at 00:1f.0
PCI: Found IRQ 11 for device 00:1f.3
PCI: Sharing IRQ 11 with 00:1f.5
PCI: Sharing IRQ 11 with 02:01.0
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
Journalled Block Device driver loaded
devfs: v1.12a (20020514) Richard Gooch (rgooch@xxxxxxxxxxxxx)
devfs: boot_options: 0x1
i2c-core.o: i2c core module
i2c-algo-bit.o: i2c bit algorithm module
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
Real Time Clock Driver v1.10e
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ICH2: IDE controller on PCI bus 00 dev f9
ICH2: chipset revision 2
ICH2: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:DMA, hdd:pio
hda: SAMSUNG SV4002H, ATA DISK drive
hdc: SONY CD-RW CRX175A1, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: 78242976 sectors (40060 MB) w/1945KiB Cache, CHS=4870/255/63, UDMA(100)
Partition check:
/dev/ide/host0/bus0/target0/lun0: p1 p2 p3 p4 < p5 p6 p7 p8 >
loop: loaded (max 8 devices)
8139too Fast Ethernet driver 0.9.25
PCI: Found IRQ 11 for device 02:01.0
PCI: Sharing IRQ 11 with 00:1f.3
PCI: Sharing IRQ 11 with 00:1f.5
eth0: RealTek RTL8139 Fast Ethernet at 0xd0802000, 00:40:f4:34:df:46, IRQ 11
eth0: Identified 8139 chip type 'RTL-8139C'
Linux agpgart interface v0.99 (c) Jeff Hartmann
agpgart: Maximum main memory to use for agp memory: 203M
agpgart: agpgart: Detected an Intel i815, but could not find the secondary device. Assuming a non-integrated video card.
agpgart: unsupported bridge
agpgart: no supported devices found.
SCSI subsystem driver Revision: 1.00
scsi0 : SCSI host adapter emulation for IDE ATAPI devices
Vendor: SONY Model: CD-RW CRX175A1 Rev: 5YS2
Type: CD-ROM ANSI SCSI revision: 02
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0
sr0: scsi3-mmc drive: 147x/40x writer cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.12
Linux Kernel Card Services 3.1.22
options: [pci] [cardbus] [pm]
usb.c: registered new driver hub
usb-uhci.c: $Revision: 1.275 $ time 13:55:11 Feb 13 2003
usb-uhci.c: High bandwidth mode enabled
PCI: Found IRQ 11 for device 00:1f.2
PCI: Setting latency timer of device 00:1f.2 to 64
usb-uhci.c: USB UHCI at I/O 0xb000, IRQ 11
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 1
hub.c: USB hub found
hub.c: 2 ports detected
PCI: Found IRQ 5 for device 00:1f.4
PCI: Setting latency timer of device 00:1f.4 to 64
usb-uhci.c: USB UHCI at I/O 0xb400, IRQ 5
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 2
hub.c: USB hub found
hub.c: 2 ports detected
usb-uhci.c: v1.275:USB Universal Host Controller Interface driver
usb.c: registered new driver usbscanner
scanner.c: 0.4.6:USB Scanner Driver
usb.c: registered new driver usblp
printer.c: v0.11: USB Printer Device Class driver
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 16384 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
ds: no socket drivers loaded!
kjournald starting. Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Mounted devfs on /dev
Freeing unused kernel memory: 68k freed
hub.c: USB new device connect on bus1/1, assigned device number 2
printer.c: usblp0: USB Bidirectional printer dev 2 if 0 alt 0 proto 2 vid 0x03F0 pid 0x1704
Adding Swap: 393552k swap-space (priority -1)
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on ide0(3,2), internal journal
kjournald starting. Commit interval 5 seconds
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on ide0(3,3), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on ide0(3,5), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on ide0(3,6), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
eth0: Setting 100mbps full-duplex based on auto-negotiated partner ability 45e1.
PCI: Found IRQ 9 for device 02:02.0
spurious 8259A interrupt: IRQ7.
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