Neil Schneider wrote:
Darrel Lawrence wrote:
I have a Soundblaster Live 5.1 sound card. When I play a cd or a music
file, my network response time becomes non-existent. Basically I get no
response, can't surf the net or get email. As soon as I stop the music
the response time goes right back to normal. I can surf the net, get
email, etc. If I remove the sound card, then enable and use the onboard
audio, everything works normally. I used a couple of different music
players, moved the sound card around to different pci slots, disabled
the parallel port and the usb ports to get the sound card on it's own
irq (not shared) and nothing made any difference. If that sound card is
installed and I play any music my internet response time slows to a crawl.
I am running Ubuntu 7.04 on an AMD 1.33 processor. The network card is
a Linksys WMP11.
I am wondering if anybody out there has any other ideas I might try or
possibly somebody has encountered this problem or a similar problem in
the past.
This sounds like a shared interrupt problem. The sound card and the ethernet
card are either using the same interrupt or the same memory space. This isn't
supposed to happen with PCI but it looks like it is in your case. I'll leave
it to someone better with hardware than I to come up with a fix.
Just as a clarification, the wmp11 is a wireless network card. If I
disable the wireless interface and plug a cable directly from the router
to the nic on the pc, everything works normally. The problem seems to
be a conflict between the wireless interface and the soundblaster card.
The irq's look as follows;
Onboard sound disabled, EMU10K1 on irq 5 is the Soundblaster.
[EMAIL PROTECTED]:~$ cat /proc/interrupts
CPU0
0: 35498 XT-PIC-XT timer
1: 47 XT-PIC-XT i8042
2: 0 XT-PIC-XT cascade
5: 601 XT-PIC-XT EMU10K1
6: 5 XT-PIC-XT floppy
8: 3 XT-PIC-XT rtc
9: 0 XT-PIC-XT acpi
10: 0 XT-PIC-XT ivtv0
11: 125 XT-PIC-XT eth1, eth0
12: 2591 XT-PIC-XT i8042
14: 10081 XT-PIC-XT ide0
15: 953 XT-PIC-XT ide1
NMI: 0
LOC: 0
ERR: 0
MIS: 0
[EMAIL PROTECTED]:~$
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