AMD 700 Southbridge - ISO OUT transfers may be corrupted

Bug #257931 reported by Tim Gardner on 2008-08-14
16
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Medium
Tim Gardner
Hardy
Medium
Tim Gardner
Intrepid
Medium
Tim Gardner

Bug Description

On some AMD 700 series southbridges, ISO OUT transfers (such as audio playback through speakers) on the USB OHCI controller may be corrupted when an A-Link express power saving feature is active.

PLL power down mode in conjunction with link power management feature L1 being enabled is the bad combination ... this patch prevents them from being enabled when ISO transfers are pending.

Tim Gardner (timg-tpi) wrote :

SRU Justification

Impact: See bug description

Patch Description: Add quirk detection for certain AMD Southbridge 700s

Patch: http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-hardy.git;a=commit;h=e01a35f75c193cdb7e129151f91db5b381ddda31

Test case: see bug description.

Tim Gardner (timg-tpi) wrote :
Changed in linux:
assignee: nobody → timg-tpi
importance: Undecided → Medium
milestone: none → ubuntu-8.04.2
status: New → Fix Committed
assignee: nobody → timg-tpi
status: New → Fix Committed
importance: Undecided → Medium
Steve Langasek (vorlon) wrote :

Accepted into -proposed, please test and give feedback here. Please see https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

Steve Beattie (sbeattie) on 2008-09-19
description: updated

This is already "Fix Released" for Intrepid.

Changed in linux:
status: Fix Committed → Fix Released
Martin Pitt (pitti) wrote :

linux 2.6.24-21 copied to hardy-updates.

Changed in linux:
status: Fix Committed → Fix Released
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