On Fri, Mar 17, 2000 at 11:24 -0600, Norman Carver wrote:
>
> I guess I was not clear enough. We did try your solution 2.
> However, we are still having the problem that every reboot into
> W98 results in the printer not working in Linux (unless it is
> powered down prior to reboot)--even with only the parallel cable
> connecting the PC and printer.
>
> Printer will work either way--if
> is has been powered down prior to reboot--but neither way if not
> powered down.
That's exactly what I wrote:
1. Turn off the printer.
2. Shut down the system.
3. Boot into the other system.
4. Switch on the printer.
In this order, no other way.
Maybe *I* was not clear enough.
It has nothing to do with irqs or the configuration in Linux. It
is the printer's electronics which is responsible.
In Windows the printer is talked to via the USB port. So it
keeps this setting until someone sweeps his "memory" clean by
rebooting the printer.
IOW, when the printer gets switched on it is configured to
listen on both ports. When the first signal is coming through
the USB cable the printer gets set to "USB-mode". This setting
will stay until you turn the printer off. When you turn it on
the whole story starts again.
IMHO the best solution for a device with different input options
should be a hardware switch to switch between options. Like the
switch you have on electric razors for different voltage. But
this would mean an increase of production cost.
Since most customers use Windows the manufacturers don't see any
need to solve that problem. And come kernel 2.4 there may not be
a problem any more, hopefully!
wobo
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