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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!nntp.coast.net!news.sgi.com!news.mathworks.com!fu-berlin.de!irz401!orion.sax.de!uriah.heep!news From: j@uriah.heep.sax.de (J Wunsch) Newsgroups: comp.unix.bsd.freebsd.misc,alt.comp.periphs.mainboard.asus Subject: Re: Problem with com ports on ASUS P55T2P4 (solution) Date: 1 Nov 1996 23:29:14 GMT Organization: Private BSD site, Dresden Lines: 19 Message-ID: <55e14a$n3l@uriah.heep.sax.de> References: <5513ro$2i8@bpeters.uucp> <558fep$18l@adv.iaehv.nl> Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) NNTP-Posting-Host: localhost.heep.sax.de Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Newsreader: knews 0.9.6 X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:30585 alt.comp.periphs.mainboard.asus:27379 devet@adv.IAEhv.nl (Arjan de Vet) wrote: > >Is there a known problem with the UART design on this motherboard, or > >could this be a defective unit? Yes, the UMC8669F chips built into these boards are known to be broken. (Not only their UARTs, but also their FDC.) > Yes, I had exactly the same. The following kernel patch for > sys/i386/isa/sio.c fixes it. s/fixes/works around/ -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)