re: kern/49290: DRMKMS fails to work with R300

[matthew green <mrg%eterna.com.au@localhost>]

The following reply was made to PR kern/49290; it has been noted by GNATS.

From: matthew green <mrg%eterna.com.au@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
    netbsd-bugs%netbsd.org@localhost
Subject: re: kern/49290: DRMKMS fails to work with R300
Date: Thu, 08 Jan 2015 17:43:29 +1100

 this problem has been diagnosed:
 
 	- i386 GENERIC has attachments for wsdisplay at both vga(4)
 	  and pcdisplay(4), and this attaches before drm
 	- this means that drm attaches wsdisplay1, and it is unable
 	  to deal with console input or output.
 
 the workaround is to add these lines to your config:
 
 	no pcdisplay
 	no vga0 at isa?
 
 which avoids wsdisplay0 not being owned by drm.
 
 the real solution is still unknown.  perhaps, simply removing the
 old setup by default?  i don't know what it is necessary for on
 older pc systems.  perhaps some changes to wsdisplay for it to
 recognise some devices are the same, or to force vga@isa or
 pcdisplay to not attach when drm will attach at the PCI location.
 
 
 .mrg.