| 2018-05-11 06:08:48 |
Timo Aaltonen |
bug |
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added bug |
| 2018-05-11 06:09:05 |
Timo Aaltonen |
linux (Ubuntu): importance |
Undecided |
High |
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| 2018-05-11 06:09:05 |
Timo Aaltonen |
linux (Ubuntu): status |
New |
Triaged |
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| 2018-05-11 06:09:05 |
Timo Aaltonen |
linux (Ubuntu): assignee |
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Timo Aaltonen (tjaalton) |
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| 2018-05-11 06:29:18 |
Timo Aaltonen |
description |
A certain OEM laptop changed the panel type/vendor, and the change regressed the driver causing a flickering image. The ODM has tools to measure various values of the driver/panel combination, and determined that some voltage levels were way too low to pass the spec. The process to bisect the commits took weeks, so while it's technically possible that this issue was fixed by a single commit (drm/i915: Ignore OpRegion panel type except on select machines), we've also kept another 10 commits which upstream thought should help (and did, they improved the measured values but not enough).
So, this backport carries all 11 commits from 4.8/4.9 that the ODM verified to pass the tests. |
[Impact]
A certain OEM laptop changed the panel type/vendor, and the change regressed the driver causing a flickering image. The ODM has tools to measure various values of the driver/panel combination, and determined that some voltage levels were way too low to pass the spec. The process to bisect the commits took weeks, so while it's technically possible that this issue was fixed by a single commit (drm/i915: Ignore OpRegion panel type except on select machines), we've also kept another 10 commits which upstream thought should help (and did, they improved the measured values but not enough).
So, this backport carries all 11 commits from 4.8/4.9 that the ODM verified to pass the tests.
[Test case]
Needs to be tested with the ODM tools to be sure.
[Regression potential]
There is some, but apart from the necessary refactoring the rest are bugfixes to match the HW specs, so this should in fact fix a lot more than just this certain machine. |
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| 2018-05-11 08:19:49 |
Timo Aaltonen |
nominated for series |
|
Ubuntu Xenial |
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| 2018-05-11 08:19:49 |
Timo Aaltonen |
bug task added |
|
linux (Ubuntu Xenial) |
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| 2018-05-11 08:20:05 |
Timo Aaltonen |
linux (Ubuntu Xenial): importance |
Undecided |
High |
|
| 2018-05-11 08:20:05 |
Timo Aaltonen |
linux (Ubuntu Xenial): status |
New |
Triaged |
|
| 2018-05-11 08:20:05 |
Timo Aaltonen |
linux (Ubuntu Xenial): assignee |
|
Timo Aaltonen (tjaalton) |
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| 2018-05-11 08:20:17 |
Timo Aaltonen |
linux (Ubuntu): importance |
High |
Undecided |
|
| 2018-05-11 08:20:17 |
Timo Aaltonen |
linux (Ubuntu): status |
Triaged |
Invalid |
|
| 2018-05-11 08:20:17 |
Timo Aaltonen |
linux (Ubuntu): assignee |
Timo Aaltonen (tjaalton) |
|
|
| 2018-05-11 08:29:01 |
Emily Chien |
bug |
|
|
added subscriber Emily Chien |
| 2018-05-15 09:42:53 |
Anthony Wong |
bug |
|
|
added subscriber Canonical Hardware Enablement |
| 2018-05-15 09:42:57 |
Anthony Wong |
tags |
|
originate-from-1747439 somerville |
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| 2018-05-23 05:10:57 |
ethan.hsieh |
bug |
|
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added subscriber ethan.hsieh |
| 2018-05-23 16:01:58 |
Stefan Bader |
linux (Ubuntu Xenial): status |
Triaged |
Fix Committed |
|
| 2018-05-28 14:04:03 |
Brad Figg |
tags |
originate-from-1747439 somerville |
originate-from-1747439 somerville verification-needed-xenial |
|
| 2018-05-30 07:31:07 |
ethan.hsieh |
tags |
originate-from-1747439 somerville verification-needed-xenial |
originate-from-1747439 somerville verification-done-xenial |
|
| 2018-06-11 15:09:13 |
Launchpad Janitor |
linux (Ubuntu Xenial): status |
Fix Committed |
Fix Released |
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| 2018-06-11 15:09:13 |
Launchpad Janitor |
cve linked |
|
2017-5715 |
|
| 2018-06-11 15:09:13 |
Launchpad Janitor |
cve linked |
|
2017-5753 |
|
| 2018-06-11 15:09:13 |
Launchpad Janitor |
cve linked |
|
2018-3639 |
|
| 2018-06-11 15:09:13 |
Launchpad Janitor |
cve linked |
|
2018-8087 |
|
| 2018-07-06 09:32:21 |
Anthony Wong |
hwe-next: status |
New |
Fix Released |
|
