[linux-audio-user] IRQ conflicts, acpi, and linux audio

carmen ix at replic.net
Sat Nov 19 20:48:22 EST 2005


On Sat, Nov 19, 2005 at 07:33:21PM -0500, Lee Revell wrote:
> On Sun, 2005-11-20 at 01:25 +0100, Christoph Eckert wrote:
> >  11:    1636542          XT-PIC  Intel 82801CA-ICH3, Intel 82801CA-ICH3 
> > Modem, uhci_hcd:usb1, uhci_hcd:usb2,eth0, yenta, yenta, ohci1394, 
> > nvidia
> 
> You have your USB audio device on the same interrupt as the binary only
> nvidia driver?!?
> 
> You won't get a lot of help from the open source community if you insist
> on loading proprietary kernel modules.  The FIRST thing you should do if
> you're trying to optimize your system is don't load any binary only
> kernel modules!!!

regardless of the license-nazi issues of his kernel modules, all those things on IRQ 11 looks questionable. i run the nvidia binary driver but it gets its own IRQ, same as the ATI fglrx...these are both on amd64 motherboards... on my ~2001 ASUS athlon32 mobo, with win32, everything _would_ end up on a single IRQ, unless disabling ACPI, in which case they would be nicely distributed. no idea what this all means, but someone else agrees:

http://service.steinberg.de/webdoc_ps_int.nsf/show/acpi_vs_audio_performance_en

> 
> Lee


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