Description of problem: The intel-agp driver does not support the i945G host bridge found in recent Intel-based x86_64 capable PCs. The existing i915G code in the RHEL4 kernel seems capable of driving 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: Always Steps to Reproduce: 1. try to get agpgart working on a i945G based machine Actual results: intel-agp 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 intel-agp.c. Using this patch, I built the intel-agp 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 graphics)
Created attachment 114476 [details] [PATCH] support i945G as i915G in intel-agp.c
See also the related bugs: bug #157991 (intel-agp driver needed on x86_64) 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 #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.
reassigning to product management
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