S3 resume fails to restore video on Intel Sandybridge platforms
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
High
|
Unassigned | ||
Maverick |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
Video fails to restore (blank laptop monitor) from resume from S3 on Intel Sandybridge platforms.
SRU Justification:
Impact: Resuming from S3 on Sandybridge laptops results in a blank display and no video.
Fix: Attached 5 patches restore fence registers correctly, align the display surface so to avoid tiling corruption and correctly check for sandybrige chipset in resume path.
Testcase: Without the patches, resume from S3 results in a blank display with no video being displayed. With the patches, S3 can be run multiple times and video is restored correctly on each resume.
Chris Wilson (5):
drm/i915: Silence sparse over duplicate members in static initializer
drm/i915: Use 128k alignment for untiled display surface on i965 (v2)
drm/i915: Include a generation number in the device info
drm/i915: Fix Sandybridge fence registers
drm/i915/suspend: s/IS_IRONLAKE/
drivers/
drivers/
drivers/
drivers/
drivers/
5 files changed, 130 insertions(+), 112 deletions(-)
affects: | ubuntu → linux (Ubuntu) |
description: | updated |
description: | updated |
Changed in linux (Ubuntu): | |
importance: | Undecided → High |
tags: |
added: verification-done removed: verification-needed |
Changed in linux (Ubuntu): | |
status: | Fix Committed → Fix Released |
tags: | added: hwe-blocker |
Looks like the patches have been applied to the Maverick linux master branch. Marking this Fix Committed.