From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stian Jordet Subject: SMP, ACPI and USB Date: 07 Nov 2002 00:57:03 +0100 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <1036627024.811.11.camel@chevrolet> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: acpi-devel-pyega4qmqnRoyOMFzWx49A@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hello, I have an ASUS CUV266-DLS motherboard with two P3 1ghz cpu's. I have never managed to get USB to work on this motherboard (nor did I on my old Rioworks SDVIA smp-board, they both just said something like "device not accepting address"). But I never had any use of usb, since my only usb device was a Logitech Cordless Desktop, which have adapters for the PS/2 ports. But I'm now going to buy a scanner, and thus I need to get usb working. That was not easy! I found in the faq at http://www.linux-usb.org that there are problems with smp machines. That I should try to set MPS to 1.1 instead of 1.4, that some motherboards might need a "noapic" boot option and that ACPI sometimes confuses this. I have a 2.4.20-rc1 kernel with the latest acpi-patch. I do need the acpi-patch for two reasons. I'm not able to boot the pc without the acpi patch if the secondary ide-channel is activated. And I need it to be able to turn of the computer. I tried the noapic boot option, which absolutely not worked. I got lots and lots of cpu-errors, or something, and then it hung. Then I tried MPS1.1 (What's the benefit with 1.4? I know that with 1.4 it uses irq's above 15, but...) Still no luck. then boot option acpi=off did it. Now my USB works quite flawlessly. But I would very, very much like to be able to use ACPI, so I can get to turn of my computer, without pushing the power-button for four seconds. Am I the only one using usb on smp-machines, or are my two motherboards just about the only ones incompatible? Sorry for this long post, and I'm not sure if this is the right place to post it, but I'm subscribed here, and guess you guys knows what to do :) Best regards, Stian Jordet ------------------------------------------------------- This sf.net email is sponsored by: See the NEW Palm Tungsten T handheld. Power & Color in a compact size! http://ads.sourceforge.net/cgi-bin/redirect.pl?palm0001en