Bug 14862 - intel-agp breaks X, regression from 2.6.31
Summary: intel-agp breaks X, regression from 2.6.31
Status: CLOSED DUPLICATE of bug 14627
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(AGP) (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Dave Airlie
Depends on:
Blocks: 14230
  Show dependency tree
Reported: 2009-12-22 22:59 UTC by Zephaniah E. Hull.
Modified: 2009-12-29 21:31 UTC (History)
1 user (show)

See Also:
Kernel Version: 2.6.32
Regression: Yes
Bisected commit-id:


Description Zephaniah E. Hull. 2009-12-22 22:59:47 UTC
This has been bisected down to commit 1755168, which reworked the PCI DMI API stuff for the Intel IOMMU support.

On 2.6.32 if I disable USE_PCI_DMA_API everything works again, with it enabled I get a mouse cursor but corrupted frame buffer.

This is an HP/Compaq 6710b with GM965 integrated video, on Ubuntu 9.10.

Without this fix 2.6.32 is unusable on this hardware.
(Console works, but.)

Zephaniah E. Hull.
Comment 1 Rafael J. Wysocki 2009-12-29 21:31:28 UTC

*** This bug has been marked as a duplicate of bug 14627 ***

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