For my part I'm certain of it: this is a failing mouse overloading some part of the link. The mouse now misbehaves rarely but it's plainly my middle mouse button sizzling briefly and everything recovers fine, no desyncs or parity errors at all after I backed off further to rate=40.
shirish, if you'd rather not have your mouse driver unloaded however briefly you can do $ sudo sh # echo 40 >/sys/module/psmouse/parameters/rate # exit and see if it doesn't do the same for you. If it works, don't forget to stick "options psmouse rate=40"" in /etc/modprobe.d/psmouse.conf so it gets restored on reboot. If you'd like to see for yourself what that file does, do "man 5 modprobe.conf` at any shell prompt. Merry Christmas, Happy New Year, all that good stuff. :-) Jim -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org