AMD 700 Southbridge - ISO OUT transfers may be corrupted
Bug #257931 reported by
Tim Gardner
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| linux (Ubuntu) |
Fix Released
|
Medium
|
Tim Gardner | ||
| Hardy |
Fix Released
|
Medium
|
Tim Gardner | ||
| Intrepid |
Fix Released
|
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.
Revision history for this message
| Tim Gardner (timg-tpi) wrote | #1 |
Revision history for this message
| Tim Gardner (timg-tpi) wrote | #2 |
| 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 |
Revision history for this message
| Steve Langasek (vorlon) wrote | #4 |
| description: | updated |
Revision history for this message
| Leann Ogasawara (leannogasawara) wrote | #5 |
| Changed in linux: | |
| status: | Fix Committed → Fix Released |
Revision history for this message
| Martin Pitt (pitti) wrote | #6 |
| Changed in linux: | |
| status: | Fix Committed → Fix Released |
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SRU Justification
Impact: See bug description
Patch Description: Add quirk detection for certain AMD Southbridge 700s
Patch: http://
Test case: see bug description.