kern/93676: Yet another i915G drm/agp issue

[Jan Blaha]

>Number:         93676
>Category:       kern
>Synopsis:       Yet another i915G drm/agp issue
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Feb 21 21:00:15 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Jan Blaha
>Release:        7.0-CURRENT
>Organization:
>Environment:
FreeBSD cl084016105115.unet.cz 7.0-CURRENT FreeBSD 7.0-CURRENT #5: Tue Feb 21 19:12:11 CET 2006     root at cl084016105115.unet.cz:/usr/obj/usr/src/sys/KERNEL  amd64
>Description:
Attaching drm0 device yields following kernel error messages on recent -current system:

drm0: <Intel i915G> on vgapci0
[drm:pid0:drm_load]
[drm:pid0:drm_agp_init] agp_available = 0
error: [drm:pid0:drm_load] *ERROR* Card isn't AGP, or couldn't initialize AGP.
[drm:pid0:drm_lastclose]
device_attach: drm0 attach returned 12

No drm nor agp devices appear in /dev.

Xorg is unable to open /dev/agpgart and allocate more than 8M of memory. Xv extension is off, direct rendering is disabled.

(EE) GARTInit: Unable to open /dev/agpgart (No such file or directory)
(WW) I810(0): /dev/agpgart is either not available, or no memory is available
for allocation.  Using pre-allocated memory only.

The problem is similar to http://www.freebsd.org/cgi/query-pr.cgi?pr=80396 but since that pr is closed and problem should be fixed in -current, there must be some difference.

Full system information is available on the uris:
http://freebsd.vyky.net/pciconf.txt
http://freebsd.vyky.net/dmesg.txt
http://freebsd.vyky.net/Xorg.0.log
http://freebsd.vyky.net/KERNEL.txt
>How-To-Repeat:
Boot os with described hardware and software configuration.
>Fix:
              
>Release-Note:
>Audit-Trail:
>Unformatted: