modem, serial port & laptop

adyas at twowaytv.co.uk adyas at twowaytv.co.uk
Mon Dec 9 10:42:42 GMT 2002


Hi,

I've had the same problem with a Thinkpad 600.  In my case it happens 
when the serial port has been disabled.  The only way I've found to 
enable it is via the Windows software that came with the machine.

HTH,

Alex..

Frank Shute wrote:
> Trying to get my Thinkpad 240 going with 4.6 RELEASE but have run into
> a problem with the serial port. When I try to fire up ppp the machine
> hangs solidly. I haven't got a lot of diagnostic info but:
> 
> $ dmesg -a | grep irq
> 
> ata0: at 0x1f0 irq 14 on atapci0
> ata1: at 0x170 irq 15 on atapci0
> uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port 0x1060-0x107f irq 11 at device 7.2 on pci0
> pcic0: <TI PCI-1211 PCI-CardBus Bridge> irq 11 at device 10.0 on pci0
> pcic0: TI12XX PCI Config Reg: [ring enable][speaker enable][pwr save][CSC serial isa irq]
> pci0: <unknown card> (vendor=0x125d, dev=0x1969) at 11.0 irq 5
> pci0: <unknown card> (vendor=0x11c1, dev=0x0449) at 12.0 irq 11
> fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
> atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
> psm0: <PS/2 Mouse> irq 12 on atkbdc0
> sio0: configured irq 4 not in bitmap of probed irqs 0
> sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
> sio0: type 8250
> 
> <------------------------------->
> 
> <snipped from kernel config>
> 
> # PCCARD (PCMCIA) support
> device          card
> device          pcic0   at isa? port 0x3e0 flags 0x1 iomem 0xd0000 irq 11
> #device         pcic1   at isa? irq 0 port 0x3e2 iomem 0xd4000 disable
> 
> # Serial (COM) ports
> device          sio0    at isa? port IO_COM1 flags 0x10 irq 4
> 
> <------------------------------->
> 
> # stty -a -f /dev/cuaa0
> 
> speed 9600 baud; 0 rows; 0 columns;
> lflags: -icanon -isig -iexten -echo -echoe -echok -echoke -echonl
>         -echoctl -echoprt -altwerase -noflsh -tostop -flusho -pendin
>         -nokerninfo -extproc
> iflags: -istrip -icrnl -inlcr -igncr -ixon -ixoff -ixany -imaxbel -ignbrk
>         -brkint -inpck -ignpar -parmrk
> oflags: -opost -onlcr -ocrnl -oxtabs -onocr -onlret
> cflags: cread cs8 -parenb -parodd hupcl -clocal -cstopb -crtscts -dsrflow
>         -dtrflow -mdmbuf
> cchars: discard = ^O; dsusp = ^Y; eof = ^D; eol = <undef>;
>         eol2 = <undef>; erase = ^?; erase2 = ^H; intr = ^C; kill = ^U;
>         lnext = ^V; min = 1; quit = ^\; reprint = ^R; start = ^Q;
>         status = ^T; stop = ^S; susp = ^Z; time = 0; werase = ^W;
> 
> <------------------------------->
> 
> I think it's an irq conflict but not too sure.
> 
> Any ideas on how to go about fixing this up? BTW, PCMCIA works OK as
> does APM. It has got a Lucent internal modem but I think there's only
> a linux driver available for it....which may or may not work with
> FreeBSD.
> 
> TIA.
> 

-- 
-= alex dyas - webmaster - twowaytv - uk =-





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