On Wed, Mar 10, 2004 at 09:40:06AM -0500, Ken Januski wrote: > Pigeon, > > Thanks again for all your work on this. I'm still not successful but > will keep investigating it later today when I get back from work. As > noted below all attempts to change irq of modem with setserial ended up > with a hung pc. I want to research modprobe a bit before trying it. > > The only other thing I can think of is that I may have done something in > previous configuration that has caused this problem. But I have no idea > what it might be. I do know that it took some work to get a driver for > the 3c509c and that I had to load that module using commands I wasn't > all that familiar with. Really? It's a pretty standard sort of card. Didn't a straightforward "modprobe 3c59x" work? >There is a message on bootup about modules.dep > being older than modules.conf or something similar. I don't know if > this could be related in any way but I'm starting to grasp at straws. I don't think so, it simply means that you've been editing /etc/modules.conf by hand or something similar, which is "naughty". I think running "depmod" should make this go away. > > Ken > > > Pigeon wrote: > > >OK, try something like this... > > > >setserial -v /dev/ttyS0 uart 16550A port 0xcff0 irq 4 > > > >(or irq 5, which also seems to be unused, and would help avoid needing > >to mess with the BIOS setup since your "normal" serial ports won't be > >after it.) > > > Using above lines with irq of either 4 or 5 seemed to work until I typed > "pon". Then all keyboard response ended. I found that nothing other than > a total power off brought pc back. This may be a clue to someone but not > to me I'm afraid. Probably means it hasn't actually succeeded in changing the IRQ the modem was using, it just thinks it has. I wouldn't have expected it to kill the keyboard completely though... can't you even switch VTs or do Ctrl-Alt-Del? There's a Red Hat package for tweaking settings of this modem available from ftp://ftp.usr.com/usr/dl15/LNUX_3ComMdm-1.0-1.i386.rpm It looks as if converting this to a deb with alien and installing it won't work, as it expects RedHatisms like /etc/rc.d/init.d to exist. But you could pull it apart and run the binary 3ComMdm directly, and see if that's any good. (There's no source code, grrr...) > >If tweaking the modem's IRQ doesn't work, it might be possible to > >tweak the ethernet card's IRQ, by loading the module with something like > > > >modprobe 3c59x compaq_irq=5 > > > >I'm not too sure about this, though; the kernel docs explain the > >"compaq" bit as being a workaround for a Compaq bios problem, but > >don't say what that problem is. I'm not sure if this would actually > >change the IRQ on other machines. My guess is it probably would, but > >I'm not sure. (Or do you have a Compaq?) > > > This seems like the best remaining option but I want to research the > compaq_irq parameter first. The Pc is a Dell so I'm not sure what impact > that would have. I'd go for trial and error here... -- Pigeon Be kind to pigeons Get my GPG key here: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x21C61F7F
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