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Bug 158015

Summary: [PATCH] i915 DRI driver lacks support for i945G integrated graphics
Product: Red Hat Enterprise Linux 4 Reporter: wingc
Component: xorg-x11Assignee: X/OpenGL Maintenance List <xgl-maint>
Severity: medium Docs Contact:
Priority: medium    
Version: 4.0   
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2005-05-17 21:52:39 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Description Flags
[PATCH] support i945G as i915G in DRI driver, xorg-x11-6.8.2 none

Description wingc 2005-05-17 20:27:01 UTC
Description of problem:

The i915 DRI OpenGL driver, included in xorg-x11-6.8.2, does not support the
i945G integrated graphics controller found in recent Intel-based x86_64 capable
PCs. It seems to work properly with the i945G if the appropriate PCI IDs are added.

Version-Release number of selected component (if applicable):

Tested most recent RHEL4 beta xorg-x11 RPM (xorg-x11-6.8.2-1.EL.5)

How reproducible:


Steps to Reproduce:
1. try to set up DRI for OpenGL acceleration on a machine with i945G integrated
Actual results: does not recognize the i945G graphics controller

Expected results:

Additional info:

Here is a patch against the xorg-x11-6.8.2 sources from RHEL4 (most recent beta,
xorg-x11-6.8.2-1.EL.5) that adds the necessary code to drive the i945G as a i915G.

With the attached patch I rebuilt the driver from the most recent
RHEL4 beta, and OpenGL acceleration is working fine on a x86_64 machine. 
(pre-production Dell GX620, x86_64, i945G integrated graphics)

Comment 1 wingc 2005-05-17 20:27:01 UTC
Created attachment 114481 [details]
[PATCH] support i945G as i915G in DRI driver, xorg-x11-6.8.2

Comment 2 wingc 2005-05-17 20:46:39 UTC
See also the related bugs:
bug #157991 (intel-agp driver needed on x86_64)
bug #157995 (support i945G host bridge in intel-agp driver)
bug #157997 (i915 DRM kernel module needed on x86_64)
bug #158000 (support i945G integrated graphics in i915 DRM kernel module)
bug #158014 (support i945G integrated graphics in xorg-x11 i810 driver)
bug #158016 (disable debugging output to stderr in i915 DRI driver, x86_64)
Taken as a series, when these are all resolved it will be possible to get
working OpenGL acceleration in RHEL4 for the i945G integrated graphics chipset
on x86_64.

Comment 3 Mike A. Harris 2005-05-17 21:52:39 UTC

*** This bug has been marked as a duplicate of 156964 ***