Date: Sat, 21 Jul 2007 23:07:42 -0400 From: Alex Goncharov <algo1@comcast.net> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/114802: sys/pci/agp_i810.c misses i845G chipset Message-ID: <E1ICRnK-000Np7-7K@[66.30.18.168]> Resent-Message-ID: <200707220320.l6M3K341019391@freefall.freebsd.org>
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>Number: 114802
>Category: kern
>Synopsis: sys/pci/agp_i810.c misses i845G chipset
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Jul 22 03:20:02 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator: Alex Goncharov
>Release: FreeBSD 7.0-CURRENT i386
>Organization:
N/A
>Environment:
System: FreeBSD fasolt 7.0-CURRENT FreeBSD 7.0-CURRENT #0: Sat Jul 21 17:26:14 EDT 2007 root@MYHOST:/usr/obj/usr/src-7.0-CURRENT/sys/GENERIC i386
>Description:
After a code upgrade from 6.2-STABLE to 7.0-CURRENT, the X server
won't start, complaining about the absense of `/dev/agpgart', which is
missing indeed.
>How-To-Repeat:
* Have a machine with '82845G/GL/GV/GE/PE Integrated Graphics Device'.
* Install 7.0-CURRENT, where the revision's sys/pci/agp_i810.c CVS Id
is:
$FreeBSD: src/sys/pci/agp_i810.c,v 1.40 2007/07/13 16:28:12
Reboot.
* Observe the lack of `/dev/agpgart'.
* Observe the failure to start X (provided the `xorg.conf' uses the
i810 driver:
Section "Device"
Driver "i810"
EndSection
>Fix:
Applying the following patch:
===================================================================
--- sys/pci/agp_i810.c 2007-07-21 14:56:26.000000000 -0400
+++ sys/pci/agp_i810.c-fixed 2007-07-21 15:27:26.000000000 -0400
@@ -130,6 +130,8 @@
"Intel 82815 (i815 GMCH) SVGA controller"},
{0x35778086, CHIP_I830, 0x00020000,
"Intel 82830M (830M GMCH) SVGA controller"},
+ {0x25628086, CHIP_I830, 0x00020000,
+ "Intel 82845M (845M GMCH) SVGA controller"},
{0x35828086, CHIP_I855, 0x00020000,
"Intel 82852/5"},
{0x25728086, CHIP_I855, 0x00020000,
===================================================================
resolves the issue -- after a rebuild and restart, `/dev/agpgart' does
appear, and the X servers starts and operates problem-free.
Note that the quoted string, "Intel 82845M (845M GMCH) SVGA
controller", may need to be changed to give a more accurate
information on the controller.
After the fix, pcicong -lv produces (in the relevant piece):
===================================================================
vgapci0@pci0:2:0: class=0x030000 card=0x01271028 chip=0x25628086 rev=0x01
hdr=0x00
vendor = 'Intel Corporation'
device = '82845G/GL/GV/GE/PE Integrated Graphics Device'
class = display
subclass = VGA
===================================================================
>Release-Note:
>Audit-Trail:
>Unformatted:
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