[t420s] Video is corrupt on internal display after connecting external monitor to vga port
Bug #891031 reported by
Timo Aaltonen
This bug affects 2 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
High
|
Timo Aaltonen | ||
Natty |
Fix Released
|
High
|
Timo Aaltonen | ||
Oneiric |
Fix Released
|
High
|
Timo Aaltonen | ||
Precise |
Fix Released
|
High
|
Timo Aaltonen |
Bug Description
The laptop panel shows static after connecting an external monitor to the vga port. Upstream commit cb0e093162d7b65
SRU justification:
Impact: When plugging in an external display, an incorrect value used for some internal calculation, causes the display to get corrupted.
Fix: A small patch cherry-picked from upstream corrects the value used. Change has been discussed with the upstream maintainer and should make it into upstream 3.0.y.
Testcase: Plug in an external display on affected hardware and verify the screen.
(blocks hwe bug 865724)
tags: | added: blocks-hwcert-enablement |
Changed in linux (Ubuntu): | |
importance: | Undecided → High |
status: | Incomplete → Triaged |
assignee: | nobody → Timo Aaltonen (tjaalton) |
milestone: | none → natty-updates |
description: | updated |
description: | updated |
Changed in linux (Ubuntu Natty): | |
status: | New → Fix Committed |
Changed in linux (Ubuntu Oneiric): | |
status: | New → Fix Committed |
Changed in linux (Ubuntu Natty): | |
importance: | Undecided → High |
Changed in linux (Ubuntu Oneiric): | |
importance: | Undecided → High |
Changed in linux (Ubuntu Precise): | |
status: | Triaged → Fix Released |
Changed in linux (Ubuntu Oneiric): | |
assignee: | nobody → Timo Aaltonen (tjaalton) |
Changed in linux (Ubuntu Natty): | |
assignee: | nobody → Timo Aaltonen (tjaalton) |
Changed in linux (Ubuntu Precise): | |
milestone: | natty-updates → none |
Changed in linux (Ubuntu Oneiric): | |
milestone: | none → oneiric-updates |
Changed in linux (Ubuntu Natty): | |
milestone: | none → natty-updates |
tags: |
added: verification-done-oneiric removed: verification-needed-oneiric |
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This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 891031
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.