serial port on Thinkpad?

serial port on Thinkpad?

Post by Reuben Pasqui » Fri, 08 May 1998 04:00:00


I'm trying to connect my Thinkpad to an old 486 with a serial line so
I can do some simple 2 processor distributed computing experiments.
Unfortunately, Linux can't seem to send/recv any info from the Thinkpad's
(365XD) serial port.  Does anyone have any suggestions as to what
the problem may be?  Does the Thinkpad serial port use a weird IRQ
or port address?



1. serial port on IBM ThinkPad

On boot up, Linux detects the serial port of my IBM ThinkPad 755CX as

serial driver version 4.13 with no serial options enabled
tty00 at 0x03f8 (irq = 4) is a 16550A

On the other hand, when I do a 'ls /dev/tty00', the device doesn't
exist at all.
I tried to setup my external modem (USR modem that I know to work with
Linux -it works on my Desktop PC) on /dev/modem after I linked it to
/dev/tty00 (after I created it using mknod), /dev/cua0  and /dev/ttyS0
with no sucess at all. The modem just doesn't respond.
I also tried using the device name instead of /dev/modem and got

Any ideas? I'm using Slackware 3.6 kernel 2.0.35

I've decided to face reality... just let me know when
it gets better...

--- just remove the 'nospam' of my address before replying --

2. C2 secure problem

3. IBM ThinkPad 600E -- No Serial Ports??

4. gnome-core-1.2.1 compilation error

5. Help: Serial port on Thinkpad not working & k/b repeat problem

6. FreeBSD : 3.x or 4.0 ?

7. thinkpad 770x serial port

8. Adding more PPP Channels

9. Thinkpad 760, PCI problem, serial port problem

10. Thinkpad 760, Unrecognized PCI, serial port problem

11. Thinkpad 760 PCI & serial port problems

12. Thinkpad 600E, serial port does not work

13. serial port on v490 and Serial port on StorEdge 3510