Date: Wed, 26 May 1999 16:09:45 +0100 From: Roger Hardiman <roger@cs.strath.ac.uk> To: Nick Hibma <nick.hibma@jrc.it> Cc: Roger Hardiman <roger@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/conf options Message-ID: <374C0EB9.15FB@cs.strath.ac.uk> References: <Pine.GSO.3.95q.990526164046.11052l-100000@elect8>
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Nick, > > Are the Brooktree cards the only bus master cards that suffer from > this problem? Shouldn't this be solved lower down in the PCI code? The 430FX and SIS/VIA/OPTi chipset workarounds are actually inside the Bt878 hardware. Brooktree included them because these chipsets do not implement the PCI 2.1 specification properly. They are broken chipsets. (something to do with the order the various i/o control lines are raised/lowered. It is all at the hardware level anyway) However, this is NOT the same as the problem I emailed to -hackers about Video Corruption. That is occuring on good chipsets and with Bt848 cards. And there was no corruption on 2.2.x and there is corruption on 3.1 and VIC users (including commercial ones) are now switching to 3.1 as a result. Bye Roger To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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