Date: Fri, 17 Dec 1999 13:00:25 +0900 From: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> To: Andrew Gordon <arg@arg1.demon.co.uk> Cc: stable@freebsd.org, yokota@zodiac.mech.utsunomiya-u.ac.jp Subject: Re: Problem with psm0 Message-ID: <199912170400.NAA11490@zodiac.mech.utsunomiya-u.ac.jp> In-Reply-To: Your message of "Thu, 16 Dec 1999 23:54:23 GMT." <Pine.BSF.4.21.9912162350240.2993-100000@server.arg.sj.co.uk> References: <Pine.BSF.4.21.9912162350240.2993-100000@server.arg.sj.co.uk>
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>Success at last! With "flags 0x400" in the config, I get: [...] >psm: status ffffffff c0262384 c02e3f68 >psm: status ffffffff c0b32800 c02e3f48 >psm: status ffffffff c0b32800 c02e3f48 >psm: status ffffffff c0b32800 c02e3f48 >psm: data ffffffff c0262384 c02e3f68 >psm0: failed to get data. >psm0: failed to get status. This is still a worring situation. The above lines indicate that we are not getting anything when the mouse is expected to send us something. As you said that the same mouse is correctly recognized and works when connected to another motherboard, we assume the mouse is not faulty at all and should be sending back data. >psm0 irq 12 flags 0x400 on isa >psm0: model Generic PS/2 mouse, device ID 255-ffffffff, 2 buttons >psm0: config:00000400, flags:00000000, packet size:3 >psm0: syncmask:00, syncbits:00 >sio0: irq maps: 0x1 0x11 0x1 0x1 > >And the mouse then works! So long as you don't experience any visible problem, we have to leave it this way. But, when you see anything strange, please report problems again. For the time being, I cannot think of a way to invesitgate this strange problem further. Kazu >I also discovered that, with the old kernel, I could boot the system with >the 'good' mouse, and then unplug that mouse and plug in the 'bad' >one. Often it would fail with "psmintr: out of sync", but sometimes it >would then work OK. Um, in general, it is not recommended to unplug and replug the AT keyboard or the PS/2 mouse while the system is running. The mouse interface and the keyboard controller may be electrically "fried". I have a couple of friends who learned this lessen in a hard way. Notebook computers and recent motherboards MAY be resistant to this problem, but you had better not do it unless you are sure that your system can stand it. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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