IRQ conflict with parport and other devices (Re: Wireless issues...)

[John]

Matt Zimmerman wrote:

>On Mon, Sep 20, 2004 at 08:14:21AM +0800, John wrote:
>
>  
>
>>If the lp module has the IRQ, it is not available to anything else. If 
>>hotplug is allocating it, hotplug is broken.
>>    
>>
>
>hotplug doesn't allocate IRQs; the BIOS does.  The issue at hand is how to
>work around the poor decisions of the BIOS.
>
>  
>
If lp is loaded, it should be using IRQ 7 or (I think) 5, depending on 
which I/O port it's using.

As I've already stated, there are generally BIOS settings to workaround 
software that can't cope with this, but I do not believe it's a BIOS 
problem.

It _can_ arise if you install a conflicting ISA device, but ISA PnP and 
expecially PCI should never conflict with this. That's why one of my 
suggestions was to change the PnP OS setting. _I_ always have it turned 
on for Linux, but while it works for the hardware I use it might not 
work for others.