tunison@rice.edu (Jeffrey R. Tunison) (02/03/90)
in the week. I have found the answer on my own and am providing it to the board to save other people from experiencing similar difficulties. The problem was not with graPHIGS or with PROFESSIONAL CADAM, it was.... **************************************************************** An IBM PC/RT running AIX 2.2.1 will NOT recognize an IBM mouse plugged into the mouse port until the CPU's power has been completely turned OFF. Warm reboots will NOT result in the OS realizing that a mouse is connected. You must power the machine up from scratch after plugging that little guy in. **************************************************************** Jeffrey Tunison tunison@rice.edu Systems Programmer Rice University
knop@dutecaa.uucp (Peter Knoppers) (02/04/90)
In article <4470@brazos.Rice.edu> tunison@brazos.rice.edu (Jeffrey R. Tunison) writes: ... >**************************************************************** >An IBM PC/RT running AIX 2.2.1 will NOT recognize an IBM mouse >plugged into the mouse port until the CPU's power has been >completely turned OFF. Warm reboots will NOT result in the OS >realizing that a mouse is connected. You must power the machine >up from scratch after plugging that little guy in. >**************************************************************** It is even worse than that: Plugging in a mouse or keyboard in an RT while it is powered-up may cause latch-up in the electronics in the mouse/keyboard which can kill your mouse/keyboard within seconds. This problem is not restricted to IBM RT computers, it applies to all computers and all periferal devices that receive their operating power through the cable that connects them to your computer! -- _____ __ __ __ __ ____ _____ _____ ______ _____ _____ | _ \ | |/ || \| | / \ | _ \ | _ \ | ___|| _ \ / ___| | __/ _ | < | || || || __/ | __/ | >__ | < \__ \ |__| |_| |__|\__||__|\__| \____/ |__| |__| |______||__|\__||_____/ P. Knoppers, Delft Univ. of Technology, The Netherlands, knop@duteca.tudelft.nl
jim@applix.UUCP (Jim Morton) (02/05/90)
In article <720@duteca.UUCP>, knop@dutecaa.uucp (Peter Knoppers) writes: -> In article <4470@brazos.Rice.edu> tunison@brazos.rice.edu writes: -> >**************************************************************** -> >An IBM PC/RT running AIX 2.2.1 will NOT recognize an IBM mouse -> >plugged into the mouse port until the CPU's power has been -> >completely turned OFF. Warm reboots will NOT result in the OS -> >realizing that a mouse is connected. You must power the machine -> >up from scratch after plugging that little guy in. -> >**************************************************************** -> It is even worse than that: -> Plugging in a mouse or keyboard in an RT while it is powered-up -> may cause latch-up in the electronics in the mouse/keyboard which -> can kill your mouse/keyboard within seconds. It's even worse than worse than that! I've seen two RT *motherboards* ("planar boards) fried because mice were plugged/unplugged when the system was on. Make sure all your users know not to plug in or unplug the mouse or keyboard with the system powered up. -- Jim Morton, APPLiX Inc., Westboro, MA ...uunet!applix!jim jim@applix.com