From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: From: David Presotto To: 9fans@cse.psu.edu Subject: Re: [9fans] Re: random moving of cursor arrow In-Reply-To: <012c01c3528e$f861d2a0$b9844051@insultant.net> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Date: Fri, 25 Jul 2003 22:22:10 -0400 Topicbox-Message-UUID: 043a3d82-eacc-11e9-9e20-41e7f4b1d025 I'll bang at serial ports tomorrow and see if I can figure out what's happening. With modern machines, I shouldn't get overruns even without the fifo. I used to avoid the fifo for mice because it made the mouse jerky. Everything related has changed of course; uart driver, clock routine, and scheduler. Any could be at fault. I'll plug some machines back to back and see if I can cause overruns. A mouse really shouldn't be able to though, it's only 9600 baud or less. If we're missing, something is really screwed up. We only use ps2 mice these days but I can scrounge up some serial ones. It is true that if the mouse is misidentified, it will cause exactly the behavior babic is seeing, i.e., if it guesses the wrong protocol.