False positive VGA PCI device detection

[Adam McDougall]

Hans Petter Selasky wrote:
> On Monday 29 June 2009 18:05:30 Robert Noland wrote:
>   
>> On Mon, 2009-06-29 at 17:56 +0200, Hans Petter Selasky wrote:
>>     
>>> Hi,
>>>
>>> I'm not sure if my ISDN adapter has been collecting dust for too long or
>>> what, but I was surprised about the following:
>>>
>>> vgapci1 at pci0:1:8:0:     class=0x038000 card=0x2bd01397 chip=0x2bd01397
>>> rev=0x02 hdr=0x00
>>>     vendor     = 'Cologne Chip Designs GmbH'
>>>     device     = 'HFC-S PCI A ISDN 2BDS0 ISDN HDLC FIFO Controller'
>>>     class      = display
>>>       
>> Why is the pci class coming up as a display?  That is why it is
>> attaching.
>>     
>
> I have no idea. I simply inserted the card into the box. I looked at the 
> vga_pci.c and there seems to be several VGA PCI classes. One old and one new.
>
> --HPS
>
>   
I have seen things like this happen when the card was not seated in the 
PCI slot well or there was something wrong with the slot.  I've seen 
Intel nics come up as an invalid product ID or even a "non-vga display 
device".  Maybe that is what happened since you said you just inserted it?