Date: Wed, 18 Nov 1998 16:43:45 GMT From: Carlos Frazao <frazao@itqb.unl.pt> To: glhenni@cs.sandia.gov Cc: bazza@bazza.com, AIC7xxx@FreeBSD.ORG Subject: Re: Problem with AIC-7895 Message-ID: <199811181643.AA09544@brutus.itqb.unl.pt> In-Reply-To: <sa7zp9prhdu.fsf@chtorr.cs.sandia.gov> (glhenni@cs.sandia.gov)
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Dear Barry, I dont know if this will help, but we had similar problems with our Tyan motherboard. The two channels of the SCSI on-board controller allocate IRQs numbers 10 and 11, and our Matrox Millenium II AGP alocates the same IRQ 11. Since we couldnt get the Xserver to work, we thought that this could result from the IRQ conflict on IRQ 11 and proceeded to try to "force" the SCSI controller to leave IRQ 11. We installed the kernel version 2.0.35 and activate the irq_hack that was supposed to force the controller to place both channels on IRQ 10. Unfortunately, the systems hangs immediately after the controller is probing the second channel for devices. We gave up on the SCSI controller, disabled it and installed an IDE hard disk. Still the Millenium II didnt work, so I look more carefully at the servers on XFree86.org and realized there was a newer version of the X server (3.3.2.3), installed it and the Millenium worked. After that, I re-enabled the SCSI controller with the higher channel on IRQ 11 still overlapping the Millenium IRQ, and the system works perfectly (except for the 24-bit color modes which do not work, but I think this is an altogheter different problem). My conclusion is that, as long as you dont install any devices on the second channel the IRQ overlap is harmless (I may be wrong, of course :) ). Hope this helps, and good luck Paulo Martel (martel@itqb.unl.pt) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-aic7xxx" in the body of the message
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