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Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!simtel!zombie.ncsc.mil!news.mathworks.com!europa.chnt.gtegsc.com!howland.reston.ans.net!nntp.crl.com!pacbell.com!tandem!zorch.sf-bay.org!scott From: scott@zorch.sf-bay.org (Scott Hazen Mueller) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Mouse drop nuisance Date: 17 Jun 1995 02:26:17 GMT Organization: At Home; Salida, CA Lines: 30 Message-ID: <3rteg9$kr9@gazette.tandem.com> Reply-To: scott@zorch.sf-bay.org NNTP-Posting-Host: 192.150.103.17 FreeBSD 2.0.5R, XF86 3.11, 486DX2-66, 12MB RAM, IDE drives, kernel reports sio0 and sio1 as 16450, Mouse Systems "White Mouse". I'm slowly being driven nuts. 99.99% of the time my mouse works just fine. However, usually when I'm reading news (xrn 7.02), it drops clicks. If I go look at my console, I've got these, in correlation with my mouse drops: Jun 16 18:40:20 zorch /kernel: sio0: 1 more silo overflow (total 21) Now, I'm fully aware of the long history of painful problems with 8250 serial controllers, having run SVR3 on an original Compaq 80386 some years back. I thought the 16x50 controllers were more robust, though. Is there some configuration parameter I can tweak (the value of spltty() :-)?) that will lessen this nuisance? The actual IO card is one of those el-cheapo multi-IO thingies; actually, the whole system is a dirt-cheap no-name clone, and it runs FBSD beautifully, for the most part. There don't appear to be any actual 16450 chips anywhere; the ASICs on the card are all "Winbond 8375[789]" surface-mount packages. There don't seem to be any useful jumpers, except the ones for the IDE BLT speed, which is another story. Any ideas? Software solutions preferred, as it's not a severe enough problem to actually spend real money on. Thanks in advance, -- Scott Hazen Mueller | scott@zorch.SF-Bay.ORG or tandem!zorch!scott