Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.
For bugs related to Red Hat Enterprise Linux 5 product line. The current stable release is 5.10. For Red Hat Enterprise Linux 6 and above, please visit Red Hat JIRA https://issues.redhat.com/secure/CreateIssue!default.jspa?pid=12332745 to report new issues.

Bug 438919

Summary: RHEL5.2: add cantiga IDs to agpgart driver
Product: Red Hat Enterprise Linux 5 Reporter: Geoff Gustafson <grgustaf>
Component: kernelAssignee: Geoff Gustafson <grgustaf>
Status: CLOSED ERRATA QA Contact: Martin Jenner <mjenner>
Severity: high Docs Contact:
Priority: high    
Version: 5.2CC: austin.zhang, dzickus, jane.lv, kem, keve.a.gabbert, peterm, rpacheco, zcerza
Target Milestone: rcKeywords: OtherQA
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: RHBA-2008-0314 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2008-05-21 15:12:38 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 245607    
Attachments:
Description Flags
backport of upstream agpgart cantiga id patch
none
resolution 800x600 screen shot none

Description Geoff Gustafson 2008-03-25 23:01:04 UTC 
The updated intel graphics driver in 5.2 Beta includes early support for Cantiga
graphics (part of the Montevina mobile platform). However, Intel testing of the
Beta revealed that this agpgart update was needed for the driver to load.

I found the relevant patch upstream and backported it to 5.2.
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=4e8b6e25943a22036a6b704ebef634c7dec4c10e
Comment 1 Geoff Gustafson 2008-03-25 23:02:15 UTC 
Created attachment 299082 [details]
backport of upstream agpgart cantiga id patch

This is the backported patch for 5.2, which I've tested on Montevina.
Comment 2 Peter Martuccelli 2008-03-26 16:52:50 UTC 
Patch is acceptable, other then poor timing, for R5.2.
Comment 10 Jane Lv 2008-03-28 06:32:14 UTC 
I applied Geoff's patch to RHEL5.2-sp1 kernel source and rebuilt it.  agpgart
works for Cantiga driver.

But I found a bug in the Cantiga 2D driver.  If the display resolution is
changed to low (1024x768, 800x600 or 640x480), there are 2 black borders at the
top and bottom of the screen.  Resolution with 1280x1024 works fine.

The screenshot will be attached.
Comment 11 Jane Lv 2008-03-28 06:34:21 UTC 
Created attachment 299436 [details]
resolution 800x600 screen shot
Comment 12 Don Zickus 2008-04-02 16:10:07 UTC 
in kernel-2.6.18-88.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5
Comment 17 Cameron Meadors 2008-04-23 20:24:30 UTC 
agpgart must be working because intel driver works.
Comment 20 errata-xmlrpc 2008-05-21 15:12:38 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2008-0314.html