Tobiah, Hi. Can you provide some more info on how things are set up? If you've got the Delta44 IRQ on 9, then that's a good start. I do not understand how you moved the IRQ for video. That's normally not movable. Can you supply the complete output of an lspci -v command?
What's the basic hardware of your machine? uP, memory, other peripherals, etc. This and the lspci info will help.
Next, are you using Alsa by itself, or are you using Jack? I'm thinking there's a chance you are running the Delta44 at 24-bits/96KHz which could load up the machine a bit much.
What sort of hard disks are you using to record?
Anyway, let us know what's up and we'll try and help.
Yeah, I'd like to run at 24/96, but the problem exists at CD quality too. It is not a horsepower issue, I don't think, as my machine's stats indicate...
I have also been through three motherboards and two video cards since I have had the Delta44... I have always had this problem in linux, whether using straight ALSA, or the commercial O$$ drivers.
I'm not using Jack, just arecord/aplay with ALSA drivers. The problem is worse with X apps like XMMS. It is definately video activity that most often causes the glitch, but it still happens maybe a few times a minute if I don't touch the screen. That is why I tried cutting the latency of the video card. One of the best ways to glitch is to Alt-tab to Mozilla.
Oh, and the video IRQ moved to four by itself when I disabled my serial ports, otherwise I use my bios to try to shuffle the irq of each slot around if I need to.
Thanks!
> free
total used free shared buffers cached Mem: 514108 440744 73364 0 34296 313736 -/+ buffers/cache: 92712 421396 Swap: 1116508 19664 1096844
> cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(tm) Processor
stepping : 2
cpu MHz : 1410.246
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
bogomips : 2811.49
From dmesg:
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller on PCI bus 00 dev 89
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
VP_IDE: VIA vt8233 (rev 00) IDE UDMA100 controller on pci00:11.1
ide0: BM-DMA at 0xa400-0xa407, BIOS settings: hda:DMA, hdb:DMA
ide1: BM-DMA at 0xa408-0xa40f, BIOS settings: hdc:pio, hdd:DMA
hda: ST380021A, ATA DISK drive
hdb: WDC WD307AA, ATA DISK drive
hdd: 24X10, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: 156301488 sectors (80026 MB) w/2048KiB Cache, CHS=9729/255/63, UDMA(100)
hdb: 60074784 sectors (30758 MB) w/2048KiB Cache, CHS=3739/255/63, UDMA(66)
> hdparm -t /dev/hda
/dev/hda: Timing buffered disk reads: 64 MB in 1.58 seconds = 40.51 MB/sec
> lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT8367 [KT266]
Subsystem: Asustek Computer, Inc. A7V266-E
Flags: bus master, medium devsel, latency 0
Memory at fc000000 (32-bit, prefetchable) [size=32M]
Capabilities: [a0] AGP version 2.0
Capabilities: [c0] Power Management version 200:01.0 PCI bridge: VIA Technologies, Inc. VT8367 [KT333 AGP] (prog-if 00 [Norma
Flags: bus master, 66Mhz, medium devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
Memory behind bridge: f6000000-f76fffff
Prefetchable memory behind bridge: f7700000-fbffffff
Capabilities: [80] Power Management version 2
00:0d.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 04)
Subsystem: Creative Labs CT4620 SBLive!
Flags: bus master, medium devsel, latency 32, IRQ 4
I/O ports at d800 [size=32]
Capabilities: [dc] Power Management version 100:0d.1 Input device controller: Creative Labs SB Live! MIDI/Game Port (rev 01)
Subsystem: Creative Labs Gameport Joystick
Flags: bus master, medium devsel, latency 32
I/O ports at d400 [size=8]
Capabilities: [dc] Power Management version 1
00:0e.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139
Subsystem: Realtek Semiconductor Co., Ltd. RT8139
Flags: bus master, medium devsel, latency 32, IRQ 10
I/O ports at d000 [size=256]
Memory at f5800000 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
00:0f.0 Multimedia audio controller: IC Ensemble Inc ICE1712 [Envy24] (rev 02)
Subsystem: IC Ensemble Inc: Unknown device d633
Flags: bus master, medium devsel, latency 248, IRQ 9
I/O ports at b800 [size=32]
I/O ports at b400 [size=16]
I/O ports at b000 [size=16]
I/O ports at a800 [size=64]
Capabilities: [80] Power Management version 1
00:11.0 ISA bridge: VIA Technologies, Inc. VT8233 PCI to ISA Bridge
Subsystem: Asustek Computer, Inc.: Unknown device 8052
Flags: bus master, stepping, medium devsel, latency 0
Capabilities: [c0] Power Management version 200:11.1 IDE interface: VIA Technologies, Inc. VT82C586B PIPC Bus Master IDE (rev
Flags: bus master, stepping, medium devsel, latency 32
I/O ports at a400 [size=16]
Capabilities: [c0] Power Management version 2
01:00.0 VGA compatible controller: nVidia Corporation NV17 [GeForce4 MX420] (rev
Flags: bus master, 66Mhz, medium devsel, latency 48, IRQ 4
Memory at f6000000 (32-bit, non-prefetchable) [size=16M]
Memory at f8000000 (32-bit, prefetchable) [size=64M]
Memory at f7800000 (32-bit, prefetchable) [size=512K]
Expansion ROM at f77e0000 [disabled] [size=128K]
Capabilities: [60] Power Management version 2
Capabilities: [44] AGP version 2.0
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