Date: Tue, 16 Jan 2007 11:24:35 +0100 From: Pieter de Goeje <pieter@degoeje.nl> To: freebsd-questions@freebsd.org Cc: Zhang Weiwu <weiwu@sdf.lonestar.org> Subject: Re: how do I tell if my sio0 port is broken? Message-ID: <200701161124.35942.pieter@degoeje.nl> In-Reply-To: <1168857789.5592.12.camel@joe.realss.com> References: <1168857789.5592.12.camel@joe.realss.com>
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On Monday 15 January 2007 11:43, Zhang Weiwu wrote: > Hello List. I guess my sio0 port is broken on my Thinkpad, OS is > FreeBSD-6.1. Reason: > > 1) I have tested a null-modem serial cable is working by using it on a > dumb-terminal and a headless server. With the same cable and same > headless server, but replace dumb-terminal with my thinkpad, run > > $ tip com1 > connected > > Then, whatever key I press, nothing happens. Usually I should see login > prompt after I pressed "Enter" key. Test was done with FreeBSD Generic > kernel. > > 2) I have plugged a modem (with ordinary serial cable, not the > null-modem one) on it and run minicom. If I type 'at' I should get 'OK' > as prompt, but I didn't. The same modem and same cable work for another > Linux box. > > 3) I go to BIOS and do a serial port test, test result is "OK", but I > think bios have no knowledge if a port is broken when it's not connected > to anything at all. > > So, I think next morning I should go and check if there are PCMCIA card > that can provide an extra COM port, but before that I think I should > write this letter to the list to see what you guys would do in this > case: do you also think this looks like COM1 port is broken? > > Thank you very much for advices. > > Zhang Weiwu Did you enable the tty in /etc/ttys? For instance: ttyd0 "/usr/libexec/getty std.115200" xterm on secure See man ttys for more info. - Pieter de Goeje
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