kern/85479: [patch] Two small fixes for DRM/DRI

Oliver Fromme olli at
Tue Aug 30 13:20:17 GMT 2005

>Number:         85479
>Category:       kern
>Synopsis:       [patch] Two small fixes for DRM/DRI
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Aug 30 13:20:11 GMT 2005
>Originator:     Oliver Fromme
>Release:        HEAD, RELENG_6, 6.0-BETA3
secnetix GmbH & Co. KG, Munich, Germany

   This patch applies to HEAD and RELENG_6.


   This patch fixex two small problems in the DRM part of
   the kernel:

   1.  In drm_pciids.h there is a typo (swapped digits)
       which prevents the i915GM from being detected
       correctly.  (Note:  DRM support for the i915GM
       does not work currently for other reasons, but
       this patch at least makes the kernel detect the
       device on my Samsung X20 notebook.  I'm currently
       trying to investigate the other issues.)

       You can verify at the following URL that the ID
       really must be 0x2592 (0x2982 does not exist):

   2.  The DRM_DEBUG kernel option doesn't work.  When
       set, DRM_DEBUG_DEFAULT_ON gets defined, but it's
       never used.


   Try to enable DRM on system with intel i915GM mobile
   graphics, and enable DRM_DEBUG.


--- src/sys/dev/drm/drm_pciids.h.orig   Thu Aug  4 19:31:02 2005
+++ src/sys/dev/drm/drm_pciids.h        Mon Aug 29 16:04:30 2005
@@ -237,6 +237,6 @@
	{0x8086, 0x3582, 0, "Intel i852GM/i855GM GMCH"}, \
	{0x8086, 0x2572, 0, "Intel i865G GMCH"}, \
	{0x8086, 0x2582, 0, "Intel i915G"}, \
-	{0x8086, 0x2982, 0, "Intel i915GM"}, \
+	{0x8086, 0x2592, 0, "Intel i915GM"}, \
	{0, 0, 0, NULL}

--- src/sys/dev/drm/drm_drv.c.orig      Sat Apr 16 05:44:43 2005
+++ src/sys/dev/drm/drm_drv.c   Mon Aug 29 16:20:03 2005
@@ -35,7 +35,11 @@
 #include "dev/drm/drmP.h"
 #include "dev/drm/drm.h"

+int drm_debug_flag = 1;
 int drm_debug_flag = 0;

 static int drm_init(device_t nbdev);
 static void drm_cleanup(drm_device_t *dev);

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