| 2019-01-13 09:49:16 |
Jaime Pérez |
bug |
|
|
added bug |
| 2019-01-13 09:49:34 |
Jaime Pérez |
linux (Ubuntu): status |
New |
Fix Released |
|
| 2019-01-13 09:49:39 |
Jaime Pérez |
linux (Ubuntu): status |
Fix Released |
New |
|
| 2019-01-13 09:50:59 |
Jaime Pérez |
description |
It seems that commit 648e921888ad96ea3dc922739e96716ad3225d7f was backported to 4.18 kernel. That commit breaks audio for some devices (from 4.19 on). Now 4.19, 4.20, 5.0 are fixed, with patch on commit:
47148001ae12292984ba1b38d9babefb9a46cd3e
ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook Gnawty
Bug reported:
https://bugzilla.kernel.org/show_bug.cgi?id=201787 |
It seems that commit 648e921888ad96ea3dc922739e96716ad3225d7f was backported to ubuntu's 4.18 kernel. That commit breaks audio for some devices (from 4.19 on). Now 4.19, 4.20, 5.0 are fixed, with patch on commit:
47148001ae12292984ba1b38d9babefb9a46cd3e
ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook Gnawty
Bug reported:
https://bugzilla.kernel.org/show_bug.cgi?id=201787 |
|
| 2019-01-13 09:51:16 |
Jaime Pérez |
description |
It seems that commit 648e921888ad96ea3dc922739e96716ad3225d7f was backported to ubuntu's 4.18 kernel. That commit breaks audio for some devices (from 4.19 on). Now 4.19, 4.20, 5.0 are fixed, with patch on commit:
47148001ae12292984ba1b38d9babefb9a46cd3e
ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook Gnawty
Bug reported:
https://bugzilla.kernel.org/show_bug.cgi?id=201787 |
It seems that commit 648e921888ad96ea3dc922739e96716ad3225d7f was backported to ubuntu's 4.18 kernel. That commit breaks audio for some devices (chromebook gnawty) (from 4.19 on). Now 4.19, 4.20, 5.0 are fixed, with patch on commit:
47148001ae12292984ba1b38d9babefb9a46cd3e
ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook Gnawty
Bug reported:
https://bugzilla.kernel.org/show_bug.cgi?id=201787 |
|
| 2019-01-13 09:58:27 |
Jaime Pérez |
tags |
audio kernel-bug |
audio kernel-bug regression |
|
| 2019-01-13 10:00:04 |
Ubuntu Kernel Bot |
linux (Ubuntu): status |
New |
Incomplete |
|
| 2019-01-13 10:06:58 |
Jaime Pérez |
linux (Ubuntu): status |
Incomplete |
New |
|
| 2019-01-13 10:30:05 |
Ubuntu Kernel Bot |
linux (Ubuntu): status |
New |
Incomplete |
|
| 2019-01-14 09:14:01 |
Po-Hsu Lin |
tags |
audio kernel-bug regression |
audio cosmic disco kernel-bug regression |
|
| 2019-01-14 09:14:06 |
Po-Hsu Lin |
nominated for series |
|
Ubuntu Disco |
|
| 2019-01-14 09:14:06 |
Po-Hsu Lin |
nominated for series |
|
Ubuntu Cosmic |
|
| 2019-01-14 09:44:06 |
Sebastien Bacher |
linux (Ubuntu): status |
Incomplete |
Confirmed |
|
| 2019-01-14 10:06:07 |
Po-Hsu Lin |
linux (Ubuntu): assignee |
|
Po-Hsu Lin (cypressyew) |
|
| 2019-01-14 10:06:09 |
Po-Hsu Lin |
linux (Ubuntu): status |
Confirmed |
In Progress |
|
| 2019-01-15 03:08:48 |
Po-Hsu Lin |
description |
It seems that commit 648e921888ad96ea3dc922739e96716ad3225d7f was backported to ubuntu's 4.18 kernel. That commit breaks audio for some devices (chromebook gnawty) (from 4.19 on). Now 4.19, 4.20, 5.0 are fixed, with patch on commit:
47148001ae12292984ba1b38d9babefb9a46cd3e
ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook Gnawty
Bug reported:
https://bugzilla.kernel.org/show_bug.cgi?id=201787 |
== Justification ==
Commit 648e921888ad96ea3dc922739e96716ad3225d7f (clk: x86: Stop marking clocks as CLK_IS_CRITICAL) backported to Cosmic kernel fixed the bug that keeps unused clocks on, but it is breaking the audio support on some Chromebooks (Swanky / Clapper/ Gnawty) since we were not using
the right clock in the cht_bsw_max98090_ti machine driver.
== Fix ==
a182ecd (ASoC: intel: cht_bsw_max98090_ti: Add quirk for boards
using pmc_plt_clk_0)
984bfb3 (ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk)
94ea56c (ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk)
These 3 patches can be cherry-picked to Cosmic.
== Test ==
Test kernel with these 3 patches could be found in:
http://people.canonical.com/~phlin/kernel/lp-1811566-chromebook-Gnawty/
Bug reporter stated that this kernel can fix the audio issue as expected.
== Regression potential ==
Low,
changes are limited in the cht_bsw_max98090_ti driver with a new DMI based quirk table that contains these 3 Chromebook models and some logic to determine the right clock to use.
It seems that commit 648e921888ad96ea3dc922739e96716ad3225d7f was backported to ubuntu's 4.18 kernel. That commit breaks audio for some devices (chromebook gnawty) (from 4.19 on). Now 4.19, 4.20, 5.0 are fixed, with patch on commit:
47148001ae12292984ba1b38d9babefb9a46cd3e
ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook Gnawty
Bug reported:
https://bugzilla.kernel.org/show_bug.cgi?id=201787 |
|
| 2019-01-15 13:55:49 |
Stefan Bader |
bug task added |
|
linux (Ubuntu Cosmic) |
|
| 2019-01-15 13:55:54 |
Stefan Bader |
bug task added |
|
linux (Ubuntu Disco) |
|
| 2019-01-15 13:56:04 |
Stefan Bader |
linux (Ubuntu Disco): importance |
Undecided |
Medium |
|
| 2019-01-15 13:56:08 |
Stefan Bader |
linux (Ubuntu Cosmic): importance |
Undecided |
Medium |
|
| 2019-01-15 13:56:20 |
Stefan Bader |
linux (Ubuntu Cosmic): status |
New |
In Progress |
|
| 2019-01-16 09:09:58 |
Po-Hsu Lin |
linux (Ubuntu Cosmic): assignee |
|
Po-Hsu Lin (cypressyew) |
|
| 2019-01-16 09:10:10 |
Po-Hsu Lin |
linux (Ubuntu Disco): assignee |
Po-Hsu Lin (cypressyew) |
|
|
| 2019-01-16 09:10:19 |
Po-Hsu Lin |
linux (Ubuntu Disco): status |
In Progress |
Fix Released |
|
| 2019-01-16 09:10:27 |
Po-Hsu Lin |
tags |
audio cosmic disco kernel-bug regression |
audio cosmic kernel-bug regression |
|
| 2019-02-01 03:22:45 |
Khaled El Mously |
linux (Ubuntu Cosmic): status |
In Progress |
Fix Committed |
|
| 2019-02-11 11:06:07 |
Brad Figg |
tags |
audio cosmic kernel-bug regression |
audio cosmic kernel-bug regression verification-needed-cosmic |
|
| 2019-03-06 10:49:37 |
Launchpad Janitor |
linux (Ubuntu Cosmic): status |
Fix Committed |
Fix Released |
|
| 2019-03-06 10:49:37 |
Launchpad Janitor |
cve linked |
|
2018-16880 |
|
| 2019-03-06 10:49:37 |
Launchpad Janitor |
cve linked |
|
2018-18397 |
|
| 2019-03-06 10:49:37 |
Launchpad Janitor |
cve linked |
|
2019-6133 |
|
