HOWTO adjust volume on Yamaha YMF-724 PCI soundcard

[Joseph Schiller]

Hi,

After HDD install of Knoppix 3.2 5/3/03 release, I've been tweaking around to make things work. I launched KsCD after putting an audio CD inside CD-ROM, I kept getting read error messages advising that I don't have permissions. I've tried mounting non-audio CD and discovered that I could read files from CD-ROM fine. I've checked ls -l /dev/cdrom and found 'lrwxrwxrwx' linked to sr0, checked that ls -l /dev/sr0 and it was also 'lrwxrwxrwx', again linked to scd0, the last one had no rwx permissions for group and others. Fixed that, probably making system less secure giving a block device 'brwxrwsrws' all permissions. Now, I can launch KsCD and play, but I can bearly hear anything. The speaker volume is turned up all the way and the volume slider on KsCD is all the way to the right, but I can bearly hear music. I've checked the connection to sound card and tried moving plug to differnt input jacks just to be sure I'm in the right church and the right pew. No change. I did sndconfig as root and the sample that was played was the same way. Duno what else to check. I kicked out dmesg and cut-and-paste it below. Thanks in advance for assistance.

Regards,

Joseph Schiller

----------------------begining of 'dmesg' -----------------------------------------------

Linux version 2.4.20-xfs (root@Knoppix) (gcc version 2.95.4 20011002 (Debian prerelease)) #1 SMP Mit Mär 26 15:37:36 CET 2003
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 0000000008000000 (usable)
BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
128MB LOWMEM available.
On node 0 totalpages: 32768
zone(0): 4096 pages.
zone(1): 28672 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/hda3 ro vga=791 apm=power-off hda=scsi hdb=scsi hdc=scsi hdd=scsi hde=scsi hdf=scsi hdg=scsi hdh=scsi nomce BOOT_IMAGE=vmlinuz
ide_setup: hda=scsi
ide_setup: hdb=scsi
ide_setup: hdc=scsi
ide_setup: hdd=scsi
ide_setup: hde=scsi
ide_setup: hdf=scsi
ide_setup: hdg=scsi
ide_setup: hdh=scsi
No local APIC present or hardware disabled
Initializing CPU#0
Detected 267.284 MHz processor.
Console: colour dummy device 80x25
Calibrating delay loop... 532.48 BogoMIPS
Memory: 126908k/131072k available (1270k kernel code, 3776k reserved, 503k data, 128k init, 0k highmem)
Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
CPU: L1 I Cache: 32K (32 bytes/line), D cache 32K (32 bytes/line)
CPU: After generic, caps: 008001bf 008005bf 00000000 00000000
CPU: Common caps: 008001bf 008005bf 00000000 00000000
Checking 'hlt' instruction... OK.
Checking for popad bug... OK.
POSIX conformance testing by UNIFIX
mtrr: v1.40 (20010327) Richard Gooch (rgooch@atnf.csiro.au)
mtrr: detected mtrr type: none
CPU: L1 I Cache: 32K (32 bytes/line), D cache 32K (32 bytes/line)
CPU: After generic, caps: 008001bf 008005bf 00000000 00000000
CPU: Common caps: 008001bf 008005bf 00000000 00000000
CPU0: AMD-K6tm w/ multimedia extensions stepping 00
per-CPU timeslice cutoff: 183.03 usecs.
SMP motherboard not detected.
Local APIC not detected. Using dummy APIC emulation.
Waiting on wait_init_idle (map = 0x0)
All processors have done init_idle
PCI: PCI BIOS revision 2.10 entry at 0xfb400, last bus=1
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: Using IRQ router ALI [10b9/1533] at 00:07.0
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
VFS: Disk quotas vdquot_6.5.1
vesafb: framebuffer at 0xe6000000, mapped to 0xc880d000, size 32768k
vesafb: mode is 1024x768x16, linelength=2048, pages=0
vesafb: protected mode interface info at c000:0393
vesafb: scrolling: redraw
vesafb: directcolor: size=0:5:6:5, shift=0:11:5:0
Console: switching to colour frame buffer device 128x48
fb0: VESA VGA frame buffer device
pty: 256 Unix98 ptys configured
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ALI15X3: IDE controller on PCI bus 00 dev 78
PCI: Assigned IRQ 10 for device 00:0f.0
ALI15X3: chipset revision 32
ALI15X3: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hdaMA, hdbio
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdcio, hddio
hda: WDC AC26400B, ATA DISK drive
hdc: UTI V6.2, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
blk: queue c032bfc4, I/O limit 4095Mb (mask 0xffffffff)
hda: 12594960 sectors (6449 MB) w/512KiB Cache, CHS=784/255/63, (U)DMA
ide-cd: passing drive hdc to ide-scsi emulation.
Partition check:
hda: hda1 hda2 hda3 hda4
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Cronyx Ltd, Syn, Synchronous PPP and CISCO HDLC (c) 1994
Linux port (c) 1998 Building Number Three Ltd & Jan "Yenya" Kasprzak.
Promise Fasttrak(tm) Softwareraid driver 0.03beta: No raid array found
Highpoint HPT370 Softwareraid driver for linux version 0.01
No raid array found
SCSI subsystem driver Revision: 1.00
scsi0 : SCSI host adapter emulation for IDE ATAPI devices
Vendor: UTI Model: CD_ROM Rev: V6.2
Type: CD-ROM ANSI SCSI revision: 02
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.12
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 128k freed
Adding Swap: 248996k swap-space (priority -1)
Real Time Clock Driver v1.10e
apm: BIOS version 1.2 Flags 0x07 (Driver version 1.16)
Serial driver version 5.05c (2001-07-0 with MANY_PORTS SHARE_IRQ SERIAL_PCI ISAPNP enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
ttyS03 at 0x02e8 (irq = 3) is a 16550A
PCI: Found IRQ 10 for device 00:11.0
ymfpci: YMF724 at 0xe8000000 IRQ 10
ac97_codec: AC97 codec, id: TRA3(TriTech TR28023)
Linux agpgart interface v0.99 (c) Jeff Hartmann
agpgart: Maximum main memory to use for agp memory: 96M
agpgart: Detected Ali M1541 chipset
agpgart: AGP aperture is 64M @ 0xe0000000
parport0: PC-style at 0x378 [PCSPP,EPP]
lp0: using parport0 (polling).
lp0: console ready
I/O error: dev 0b:00, sector 64
isofs_read_super: bread failed, dev=0b:00, iso_blknum=16, block=16
I/O error: dev 0b:00, sector 64
isofs_read_super: bread failed, dev=0b:00, iso_blknum=16, block=16
I/O error: dev 0b:00, sector 64
isofs_read_super: bread failed, dev=0b:00, iso_blknum=16, block=16
CSLIP: code copyright 1989 Regents of the University of California
PPP generic driver version 2.4.2
PPP BSD Compression module registered
PPP Deflate Compression module registered
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root

-----------------------------------end of 'dmesg' ---------------------------------------

[Joseph Schiller]

Hm,

I found how to fix the problem. Went to conntrol center and entered custom sampling rate 4800 Hz for Yamaha soundcard. Launched Kmix and was able to adjust the volume fine. Great! Now I can annoy the neighbors at all hours.

Joseph Schiller