Public bug reported:
[ Impact ]
On Dell Vostro-3030 with Jammy, the rear audio line-out port doesn’t
output sound. According to feedback from Cirrus Logic this is due to an
incorrectly set “full-scale volume” bit, and they’ve upstreamed a fix
for this issue.
[ Fix ]
Backport the commit 08b613b9e2ba (ALSA: hda/cirrus: Correct the full
scale volume set logic), which has appeared in linux-next since
next-20250217.
[ Test ]
Insert the headphone jack at the rear port and test audio playback. It
should function normally.
[ Where the problems could occur ]
Regression might impact platforms using the cs8409 sound card.
Regression in changes regarding the register init sequence will impact
the “dolphin” variant of those platforms.
Note that the cs23l42_resume() that this patch changes is not the one in
the ASoC CS42L42 soundwire driver (and other ASoC codec drivers), so
codec drivers under sound/soc/codecs/ are theoretically not impacted.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Leo Lin (0xff07)
Status: New
** Affects: linux (Ubuntu Jammy)
Importance: Undecided
Assignee: Leo Lin (0xff07)
Status: New
** Affects: linux (Ubuntu Noble)
Importance: Undecided
Assignee: Leo Lin (0xff07)
Status: New
** Affects: linux (Ubuntu Oracular)
Importance: Undecided
Assignee: Leo Lin (0xff07)
Status: New
** Affects: linux (Ubuntu Plucky)
Importance: Undecided
Assignee: Leo Lin (0xff07)
Status: New
** Tags: jira-wtn-191 oem-priority
** Also affects: linux (Ubuntu Noble)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Oracular)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Plucky)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Jammy)
Assignee: (unassigned) => Leo Lin (0xff07)
** Changed in: linux (Ubuntu Noble)
Assignee: (unassigned) => Leo Lin (0xff07)
** Changed in: linux (Ubuntu Oracular)
Assignee: (unassigned) => Leo Lin (0xff07)
** Changed in: linux (Ubuntu Plucky)
Assignee: (unassigned) => Leo Lin (0xff07)
** Tags added: jira-wtn-191 oem-priority
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https://bugs.launchpad.net/bugs/2099880
Title:
Fix line-out playback on some platforms with Cirrus Logic “Dolphin”
hardware
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