Date: Mon, 15 Jan 2007 18:43:09 +0800 From: Zhang Weiwu <weiwu@sdf.lonestar.org> To: questions@freebsd.org Subject: how do I tell if my sio0 port is broken? Message-ID: <1168857789.5592.12.camel@joe.realss.com>
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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
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