X autodetection when several video cards are detected?

[Petter Reinholdtsen <pere@hungry.com>]

Please have a look at bug #415620.  It report a problem configuring X
properly when several video cards were detected, and the first one had
'unknown' as the driver.  This is the source of the problem:

  # discover --disable=serial,parallel,usb,ide,scsi --format="%V %M\t%S\t%D\n" video 2> /dev/null
  Philips Semiconductors SAA7133/SAA7135 Video Broadcast Decoder  unknown unknown
  ATI Technologies Inc RV350 AP [Radeon 9600]     XFree86 ati
  ATI Technologies Inc RV350 AP [Radeon 9600] (Secondary) XFree86 ati

When discover return this output, I believe xserver-xorg.postinst
should ignore the entry with unknown X driver, and pick one of the
other ones.  At the moment it pick the first entry, and this end up
with 'vesa' as the driver even if 'ati' is the correct choice.  Not
sure if it should pick the first, the last, or some other selection
among the entries without 'unknown' as the driver.  Not sure if it
matter much either.

What are the X teams view on this?

Please CC me, as I am not subscribed to debian-x@.

Friendly,
-- 
Petter Reinholdtsen
One of the discover/discover-data maintainers