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Bug 158000 - [PATCH] i915 drm module does not support i945G chipset
Summary: [PATCH] i915 drm module does not support i945G chipset
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel
Version: 4.0
Hardware: All
OS: Linux
Target Milestone: ---
: ---
Assignee: Red Hat Kernel Manager
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2005-05-17 18:40 UTC by wingc
Modified: 2012-06-20 16:02 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2012-06-20 16:02:10 UTC
Target Upstream Version:

Attachments (Terms of Use)
[PATCH] support the i945G in the i915G kernel drm module (deleted)
2005-05-17 18:40 UTC, wingc
no flags Details | Diff

Description wingc 2005-05-17 18:40:27 UTC
Created attachment 114477 [details]
[PATCH] support the i945G in the i915G kernel drm module

Comment 1 wingc 2005-05-17 18:40:27 UTC
Description of problem:

The i915 drm driver in the RHEL4 kernel does not support the i945G integrated
graphics controller found in recent Intel-based x86_64 capable PCs. The existing
i915G code in the RHEL4 kernel seems to work with the i945G if the appropriate
PCI IDs are added.

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

Tested on most recent RHEL4 beta kernel (2.6.9-6.37.EL)

How reproducible:


Steps to Reproduce:
1. try to get DRI accelerated OpenGL to work on a i945G based machine
Actual results:

The i915.ko kernel DRM driver does not recognize the i945G

Expected results:

Additional info:

Attached is a patch against the most recent RHEL4 beta sources (2.6.9-6.37.EL)
which adds the i945G PCI IDs and just uses the existing i915G code in the i915
kernel DRM driver. Using this patch, I built the i915 driver as a standalone
module for x86_64. I can confirm that with this patch, OpenGL is working
properly on my hardware (pre-production Dell GX620, x86_64, with onboard i945G

Comment 2 wingc 2005-05-17 20:45:29 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 #158014 (support i945G integrated graphics in xorg-x11 i810 driver)
bug #158015 (support i945G integrated graphics in i915 DRI 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 Dave Jones 2005-06-27 21:18:47 UTC
reassigning to product management

Comment 4 Jiri Pallich 2012-06-20 16:02:10 UTC
Thank you for submitting this issue for consideration in Red Hat Enterprise Linux. The release for which you requested us to review is now End of Life. 
Please See

If you would like Red Hat to re-consider your feature request for an active release, please re-open the request via appropriate support channels and provide additional supporting details about the importance of this issue.

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